467 results on '"Botswana Harvard AIDS Institute Partnership"'
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2. Primary HPV-based Cervical Cancer Screening Algorithms in Botswana
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University of Botswana, Botswana Harvard AIDS Institute Partnership, and Rebecca Luckett, Obstetrician Gynecologist
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- 2024
3. Tshireletso: Safety, Efficacy and Feasibility of Cabotegravir-LA PrEP in a Breastfeeding Population in Botswana (Tshireletso)
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Botswana Harvard AIDS Institute Partnership, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), ViiV Healthcare, and Rebecca Zash, MD, Assistant Professor of Medicine
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- 2024
4. Efficacy of Human Papillomavirus (HPV) Vaccination to Prevent Infection Among Women Living With HIV. (HOPE II)
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University of Witwatersrand, South Africa, Botswana Harvard AIDS Institute Partnership, Ministry of Health, Rwanda, Fred Hutchinson Cancer Center, National Cancer Institute (NCI), and Ruanne Barnabas, MBChB, MSc, DPhil., Chief of the Division of Infectious Diseases
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- 2024
5. Mopati: A Pilot Hiv Treatment Partner Intervention In Botswana
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Botswana Harvard AIDS Institute Partnership, Children's Mercy Hospital Kansas City, and University of Botswana
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- 2023
6. COVID-19 Antigen Rapid Test Evaluation in Low-Prevalence Setting (CV006)
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Botswana Harvard AIDS Institute Partnership
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- 2023
7. A Multilevel Intervention to Improve Timely Cancer Detection and Treatment Initiation (Potlako+)
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Botswana Harvard AIDS Institute Partnership, Dana-Farber Cancer Institute, National Cancer Institute (NCI), Rutgers Cancer Institute of New Jersey, University of Oxford, and Scott Lee Dryden-Peterson, Assistant Professor
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- 2023
8. Antenatal Chlamydia Trachomatis and Neisseria Gonorrhoeae Testing to Prevent Adverse Neonatal Consequences
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Botswana Harvard AIDS Institute Partnership, University of California, San Diego, and Jeffrey D Klausner, Clinical Professor
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- 2023
9. Botswana Combination Prevention Project (BCPP)
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Botswana Harvard AIDS Institute Partnership, Botswana Ministry of Health, Harvard School of Public Health (HSPH), and Tebelopele Voluntary Counseling and Testing Center
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- 2022
10. Feasibility and Accuracy of Nanosensor-based Cancer Diagnosis at the Point-of-care (Chedza) (Chedza)
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National Cancer Institute (NCI), Botswana Harvard AIDS Institute Partnership, Massachusetts General Hospital, Brigham and Women's Hospital, and Scott Dryden-Peterson, Research Associate
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- 2022
11. The Lived Experience of Participants in an African Randomised Trial (LEOPARD)
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Botswana Harvard AIDS Institute Partnership, Infectious Diseases Institute, Uganda, and University of Zimbabwe
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- 2022
12. Potlako: A Programmatic Intervention to Improve Access to Timely Oncology Care
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Brigham and Women's Hospital, Botswana Harvard AIDS Institute Partnership, Botswana Ministry of Health, Dana-Farber Cancer Institute, and Scott Dryden-Peterson, Assistant Professor, Research Affiliate
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- 2020
13. An early warning system for emerging SARS-CoV-2 variants
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Lorenzo Subissi, Anne von Gottberg, Lipi Thukral, Nathalie Worp, Bas B. Oude Munnink, Surabhi Rathore, Laith J. Abu-Raddad, Ximena Aguilera, Erik Alm, Brett N. Archer, Homa Attar Cohen, Amal Barakat, Wendy S. Barclay, Jinal N. Bhiman, Leon Caly, Meera Chand, Mark Chen, Ann Cullinane, Tulio de Oliveira, Christian Drosten, Julian Druce, Paul Effler, Ihab El Masry, Adama Faye, Simani Gaseitsiwe, Elodie Ghedin, Rebecca Grant, Bart L. Haagmans, Belinda L. Herring, Shilpa S. Iyer, Zyleen Kassamali, Manish Kakkar, Rebecca J. Kondor, Juliana A. Leite, Yee-Sin Leo, Gabriel M. Leung, Marco Marklewitz, Sikhulile Moyo, Jairo Mendez-Rico, Nada M. Melhem, Vincent Munster, Karen Nahapetyan, Djin-Ye Oh, Boris I. Pavlin, Thomas P. Peacock, Malik Peiris, Zhibin Peng, Leo L. M. Poon, Andrew Rambaut, Jilian Sacks, Yinzhong Shen, Marilda M. Siqueira, Sofonias K. Tessema, Erik M. Volz, Volker Thiel, Sylvie van der Werf, Sylvie Briand, Mark D. Perkins, Maria D. Van Kerkhove, Marion P. G. Koopmans, Anurag Agrawal, World Health Organisation (WHO), Organisation Mondiale de la Santé / World Health Organization Office (OMS / WHO), National Institute for Communicable Diseases [Johannesburg] (NICD), University of the Witwatersrand [Johannesburg] (WITS), Central Scientific Instruments Organisation (CSIR), Erasmus University Medical Center [Rotterdam] (Erasmus MC), Weill Cornell Medicine [Qatar], Universidad del Desarollo [Santiago, Chile] (UDD), European Centre for Disease Prevention and Control [Stockholm, Sweden] (ECDC), WHO - Regional Office for the Eastern Mediterranean [Cairo, Egypt] (EMRO), Imperial College London, Victorian Infectious Diseases Reference Laboratory [Melbourne, Australia] (VIDRL), UK Health Security Agency [London] (UKHSA), World Organisation for Animal Health (WOAH), Stellenbosch University, Charité - UniversitätsMedizin = Charité - University Hospital [Berlin], German Center for Infection Research, Partnersite Munich (DZIF), The University of Western Australia (UWA), Food and Agriculture Organization of the United Nations [Rome, Italie] (FAO), Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD), Botswana Harvard AIDS Institute Partnership, Harvard T.H. Chan School of Public Health, National Institute of Allergy and Infectious Diseases [Bethesda] (NIAID-NIH), National Institutes of Health [Bethesda] (NIH), World Health Organization [Kinshasa, Democratic Republic of Congo] (WHO-DRC), United States Centers for Disease Control and Prevention, The University of Hong Kong (HKU), American University of Beirut [Beyrouth] (AUB), Robert Koch Institute [Berlin] (RKI), Chinese Center for Disease Control and Prevention, University of Edinburgh, Fudan University [Shanghai], Instituto Oswaldo Cruz / Oswaldo Cruz Institute [Rio de Janeiro] (IOC), Fundação Oswaldo Cruz / Oswaldo Cruz Foundation (FIOCRUZ), Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), Centers for Disease Control and Prevention [Pretoria, South Africa] (CDC-South Africa), Centers for Disease Control and Prevention (CDC), University of Bern, Génétique Moléculaire des Virus à ARN - Molecular Genetics of RNA Viruses (GMV-ARN (UMR_3569 / U-Pasteur_2)), Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Centre National de Référence des virus des infections respiratoires (dont la grippe) - National Reference Center Virus Influenzae [Paris] (CNR - laboratoire coordonnateur), Institut Pasteur [Paris] (IP)-Université Paris Cité (UPCité), Ashoka University, We acknowledge scientists, public health professionals and Ministries of Health across the world for early generation and sharing of data on SARS-CoV-2 variants., and Virology
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630 Agriculture ,SARS-CoV-2 ,[SDV]Life Sciences [q-bio] ,COVID-19 ,Humans ,General Medicine ,General Biochemistry, Genetics and Molecular Biology - Abstract
International audience
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- 2022
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14. What do the Universal Test and Treat Trials tell us about the path to HIV epidemic control?
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Sarah Fidler, Richard J. Hayes, Joseph Larmarange, Diane V. Havlir, François Dabis, Moses R. Kamya, Sian Floyd, Tendani Gaolathe, Janet Moore, Shahin Lockman, Gabriel Chamie, Collins Iwuji, Helen Ayles, Maya L. Petersen, National Institutes of Health, University of California (UC), Botswana Harvard AIDS Institute Partnership, Harvard School of Public Health, London School of Hygiene and Tropical Medicine (LSHTM), Zambart, Centre population et développement (CEPED - UMR_D 196), Institut de Recherche pour le Développement (IRD)-Université Paris Cité (UPCité), Santé, vulnérabilités et relations de genre au sud (SAGESUD - ERL Inserm U1244), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre population et développement (CEPED - UMR_D 196), Institut de Recherche pour le Développement (IRD)-Université Paris Cité (UPCité)-Institut de Recherche pour le Développement (IRD)-Université Paris Cité (UPCité), Brighton and Sussex Medical School (BSMS), Imperial College London, Makerere University [Kampala, Ouganda] (MAK), University of California [Berkeley] (UC Berkeley), Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), President's Emergency Plan for AIDS Relief, Gilead Sciences, Bill and Melinda Gates Foundation, French National Agency for Research on AIDS and Viral Hepatitis, Deutsche Gesellschaft fur Internationale Zusammenarbeit, Institut de Recherche pour le Développement (IRD)-Université Paris Descartes - Paris 5 (UPD5), and School of Public Health
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Male ,ZAMBIE ,HIV elimination ,Hiv epidemic ,Psychological intervention ,HIV Infections ,universal access ,INITIATION ,South Africa ,0302 clinical medicine ,OUGANDA ,INFECTION ,AFRIQUE SUBSAHARIENNE ,Prevalence ,Medicine ,Mass Screening ,Uganda ,030212 general & internal medicine ,education.field_of_study ,Botswana ,Incidence (epidemiology) ,Incidence ,public health ,AIDS Serodiagnosis ,Viral Load ,3. Good health ,HIV testing ,Infectious Diseases ,Female ,0305 other medical science ,Viral load ,Life Sciences & Biomedicine ,052 ,050 ,056 ,AFRICA ,Adult ,medicine.medical_specialty ,Adolescent ,Anti-HIV Agents ,Population ,Immunology ,antiretroviral therapy ,HIV prevention ,Zambia ,World health ,Time-to-Treatment ,1117 Public Health and Health Services ,IDLIC ,03 medical and health sciences ,HIV care continuum ,Humans ,education ,Epidemics ,AFRIQUE DU SUD ,030505 public health ,Science & Technology ,business.industry ,Public health ,Public Health, Environmental and Occupational Health ,1103 Clinical Sciences ,Kenya ,(Universal Test, Treat Trials) UT3 Consortium ,Test and treat ,Commentary ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,business ,Demography ,1199 Other Medical and Health Sciences - Abstract
Author(s): Havlir, Diane; Lockman, Shahin; Ayles, Helen; Larmarange, Joseph; Chamie, Gabriel; Gaolathe, Tendani; Iwuji, Collins; Fidler, Sarah; Kamya, Moses; Floyd, Sian; Moore, Janet; Hayes, Richard; Petersen, Maya; Dabis, Francois; (Universal Test, Treat Trials) UT3 Consortium | Abstract: IntroductionAchieving HIV epidemic control globally will require new strategies to accelerate reductions in HIV incidence and mortality. Universal test and treat (UTT) was evaluated in four randomized population-based trials (BCPP/Ya Tsie, HPTN 071/PopART, SEARCH, ANRS 12249/TasP) conducted in sub-Saharan African(SSA) during expanded antiretroviral treatment (ART) eligibility by World Health Organization guidelines and the UNAIDS 90-90-90 campaign.DiscussionThese three-year studies were conducted in Botswana, Zambia, Uganda, Kenya and South Africa in settings with baseline HIV prevalence from 4% to 30%. Key observations across studies were: (1) Universal testing (implemented via a variety of home and community-based testing approaches) achieved g90% coverage in all studies. (2) When coupled with robust linkage to HIV care, rapid ART start and patient-centred care, UTT achieved among the highest reported population levels of viral suppression in SSA. Significant gains in population-level viral suppression were made in regions with both low and high baseline population viral load; however, viral suppression gains were not uniform across all sub-populations and were lower among youth. (3) UTT resulted innmarked reductions in community HIV incidence when universal testing and robust linkage were present. However, HIV elimination targets were not reached. In BCPP and HPTN 071, annualized HIV incidence was approximately 20% to 30% lower in the intervention (which included universal testing) compared to control arms (no universal testing). In SEARCH (where both arms had universal testing), incidence declined 32% over three years. (4) UTT reduced HIV associated mortality by 23% in the intervention versus control communities in SEARCH, a study in whichnmortality was comprehensively measured.ConclusionsThese trials provide strong evidence that UTT inclusive of universal testing increases population-level viral suppression and decreases HIV incidence and mortality faster than the status quo in SSA and should be adapted at a sub-country level as a public health strategy. However, more is needed, including integration of new prevention interventions into UTT, in order to reach UNAIDS HIV elimination targets.
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- 2020
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15. Contribution of Maternal Antiretroviral Therapy and Breastfeeding to 24-Month Survival in Human Immunodeficiency Virus-Exposed Uninfected Children: An Individual Pooled Analysis of African and Asian Studies
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Louise Kuhn, Matthieu Rolland, Hoosen Coovadia, Sophie Le Coeur, Marie-Louise Newell, Tanya Doherty, Shino Arikawa, Glenda Gray, Athena P. Kourtis, Timothy M.M. Farley, Shahin Lockman, Valériane Leroy, Irving F. Hoffman, Robert C. Bollinger, Gonzague Jourdain, Roger L. Shapiro, Pierre Joly, François Dabis, Carina Marquez, Jean H. Humphrey, Laurent Mandelbrot, Renaud Becquet, Nigel Rollins, Max Essex, Carolyne Onyango-Makumbi, Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Botswana Harvard AIDS Institute Partnership
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Male ,0301 basic medicine ,Breastfeeding ,HIV Infections ,children, infants ,0302 clinical medicine ,Cumulative incidence ,030212 general & internal medicine ,Articles and Commentaries ,ComputingMilieux_MISCELLANEOUS ,2. Zero hunger ,infants ,Hazard ratio ,3. Good health ,AIDS ,HIV-exposed uninfected ,Breast Feeding ,Infectious Diseases ,Child, Preschool ,Child Mortality ,Female ,Maternal death ,medicine.symptom ,Adult ,Microbiology (medical) ,CHILD_SURVIVAL ,medicine.medical_specialty ,Asia ,Adolescent ,Anti-HIV Agents ,Young Adult ,03 medical and health sciences ,children ,medicine ,DRUGS ,Humans ,MATERNAL_BREASTFEEDING ,Proportional hazards model ,business.industry ,Public health ,Infant ,medicine.disease ,mortality ,030112 virology ,Low birth weight ,Africa ,HIV-1 ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,business ,Breast feeding ,Demography - Abstract
Background Human immunodeficiency virus (HIV)–infected pregnant women increasingly receive antiretroviral therapy (ART) to prevent mother-to-child transmission (PMTCT). Studies suggest HIV-exposed uninfected (HEU) children face higher mortality than HIV-unexposed children, but most evidence relates to the pre-ART era, breastfeeding of limited duration, and considerable maternal mortality. Maternal ART and prolonged breastfeeding while on ART may improve survival, although this has not been reliably quantified. Methods Individual data on 19 219 HEU children from 21 PMTCT trials/cohorts undertaken from 1995 to 2015 in Africa and Asia were pooled to estimate the association between 24-month mortality and maternal/infant factors, using random-effects Cox proportional hazards models. Adjusted attributable fractions of risks computed using the predict function in the R package “frailtypack” were used to estimate the relative contribution of risk factors to overall mortality. Results Cumulative incidence of death was 5.5% (95% confidence interval, 5.1–5.9) by age 24 months. Low birth weight (LBW, Pooled results from 21 studies involving more than 19 000 human immunodeficiency virus–exposed but uninfected children show that an estimated two-thirds of infant deaths are attributable to lack of antiretroviral treatment for mothers, low birth weight, never being breastfed, and mother’s death.
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- 2017
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16. Impact of Routine Cryptococcal Antigen Screening and Targeted Preemptive Fluconazole Therapy in Antiretroviral-naive Human Immunodeficiency Virus–infected Adults With CD4 Cell Counts <100/μL: A Systematic Review and Meta-analysis
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Graeme Meintjes, Joseph N Jarvis, Thomas S. Harrison, Elvis Temfack, René Spijker, Olivier Lortholary, Jean Joel Bigna, Françoise Dromer, Jérémie F. Cohen, Henry Luma, Hôpital Général de Douala, Mycologie moléculaire - Molecular Mycology, Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), Centre Pasteur du Cameroun, Réseau International des Instituts Pasteur (RIIP), University Medical Center [Utrecht], University of Cape Town, London School of Hygiene and Tropical Medicine (LSHTM), St George‘s, University of London, Botswana Harvard AIDS Institute Partnership, Université Paris Descartes - Paris 5 (UPD5), Centre d'infectiologie Necker-Pasteur [CHU Necker], CHU Necker - Enfants Malades [AP-HP], This study was supported by the French National Agency for HIV and Hepatitis Research (to E. T.’ s PhD program, predoctoral bursary No. 33/CSS6/AO 2013-1). J. N. J. has received grants from Gilead.T. H. reports grants from Gilead Sciences, personal fees from Pfizer, Gilead Sciences, and Viamet, and nonfinancial support from Immuno-Mycologics., Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS), St George's, University of London, Institut Pasteur [Paris] (IP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre National de la Recherche Scientifique (CNRS)-Institut Pasteur [Paris], and Institut Pasteur [Paris]-CHU Necker - Enfants Malades [AP-HP]
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0301 basic medicine ,Microbiology (medical) ,Adult ,Male ,medicine.medical_specialty ,Antifungal Agents ,030106 microbiology ,HIV Infections ,Meningitis, Cryptococcal ,Asymptomatic ,Chemoprevention ,03 medical and health sciences ,Young Adult ,preemptive ,0302 clinical medicine ,Internal medicine ,fluconazole ,Antiretroviral naive ,Prevalence ,Medicine ,Humans ,030212 general & internal medicine ,Young adult ,[SDV.MP.MYC]Life Sciences [q-bio]/Microbiology and Parasitology/Mycology ,Aged ,Aged, 80 and over ,medicine.diagnostic_test ,business.industry ,Lumbar puncture ,Incidence (epidemiology) ,Incidence ,screening ,cryptococcal antigen ,meningitis ,lateral flow assay ,Middle Aged ,medicine.disease ,3. Good health ,CD4 Lymphocyte Count ,latex agglutination ,Infectious Diseases ,Meta-analysis ,Female ,medicine.symptom ,business ,Meningitis ,Fluconazole ,medicine.drug - Abstract
International audience; Cryptococcal antigen (CrAg) screening and targeted preemptive fluconazole in antiretroviral-naive human immunodeficiency virus-infected adults with CD4 cell counts
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- 2019
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17. Emerging concepts in HIV-associated cryptococcal meningitis
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David Lawrence, Timothée Boyer-Chammard, Joseph N Jarvis, London School of Hygiene and Tropical Medicine (LSHTM), Botswana Harvard AIDS Institute Partnership, Mycologie moléculaire - Molecular Mycology, Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS), Centre d'infectiologie Necker-Pasteur [CHU Necker], Institut Pasteur [Paris] (IP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université Paris Descartes - Paris 5 (UPD5), The work was supported by the Penn Center for AIDS Research, a National Institutes of Health (NIH)-funded program (grant number P30 AI 045008) to J.N.J. D.S.L., T.B.-C. and J.N.J. are all investigators on the AMBITION trial which is jointly funded through the European Developing Countries Clinical Trials Partnership (EDCTP), the Swedish International Development Cooperation Agency (SIDA), and the Wellcome Trust/Medical Research Council (UK)/UKAID Joint Global Health Trials., Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), CHU Necker - Enfants Malades [AP-HP], Centre National de la Recherche Scientifique (CNRS)-Institut Pasteur [Paris], and Institut Pasteur [Paris]-CHU Necker - Enfants Malades [AP-HP]
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Microbiology (medical) ,medicine.medical_specialty ,Antifungal Agents ,Human immunodeficiency virus (HIV) ,HIV Infections ,Meningitis, Cryptococcal ,Global Health ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,cryptococcal meningitis ,medicine ,030212 general & internal medicine ,Intensive care medicine ,[SDV.MP.MYC]Life Sciences [q-bio]/Microbiology and Parasitology/Mycology ,0303 health sciences ,030306 microbiology ,business.industry ,HIV ,clinical trial ,Antiretroviral therapy ,3. Good health ,Clinical trial ,Infectious Diseases ,AmBisome ,Cryptococcal meningitis ,business - Abstract
International audience; a,b Purpose of review HIV-associated cryptococcal meningitis remains a significant contributor to AIDS-related mortality despite widened access to antiretroviral therapy. Even in clinical trial settings 10-week mortality is roughly 40%. A number of important clinical trials have either recently concluded or are actively recruiting. Recent findings Global burden of disease estimates suggest cryptococcal meningitis causes 181 100 deaths annually. Screening blood for cryptococcal antigen in HIV-infected individuals with CD4 cell counts less than 100 cells/ml and preemptive antifungal treatment for those with detectable cryptococcal antigen reduces the incidence of cryptococcal meningitis and is likely to reduce mortality. Cryptococcal meningitis treatment with conventional 14-day courses of amphotericin are associated with high toxicity and mortality and can be reduced to 7 days if given alongside flucytosine. Flucytosine is a significantly superior adjunct to amphotericin treatment compared with fluconazole. In settings without amphotericin B dual oral antifungal combinations of flucytosine and fluconazole offer an effective alternative treatment. A single, high-dose of liposomal amphotericin is effective at reducing fungal burden and is being tested in a phase III trial. Summary Recently completed and ongoing clinical trials are increasing our understanding of how to optimize induction therapy for cryptococcal meningitis. Advocacy efforts are needed to broaden access to amphotericin formulations and flucytosine.
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- 2019
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18. HIV-1 Full-Genome Phylogenetics of Generalized Epidemics in Sub-Saharan Africa: Impact of Missing Nucleotide Characters in Next-Generation Sequences
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Ratmann, Oliver, Wymant, Chris, Colijn, Caroline, Danaviah, Siva, Essex, Max, Frost, Simon, Gall, Astrid, Gaseitsiwe, Simani, Grabowski, Mary, Gray, Ronald, Guindon, Stéphane, Von Haeseler, Arndt, Kaleebu, Pontiano, Kendall, Michelle, Kozlov, Alexey, Manasa, Justen, Minh, Bui Quang, Moyo, Sikhulile, Novitsky, Vlad, Nsubuga, Rebecca, Pillay, Sureshnee, Quinn, Thomas, Serwadda, David, Ssemwanga, Deogratius, Stamatakis, Alexandros, Trifinopoulos, Jana, Wawer, Maria, Brown, Andy Leigh, De Oliveira, Tulio, Pillay, Deenan, Fraser, Christophe, Department of Infectious Disease Epidemiology [London] (DIDE), Imperial College London, Botswana Harvard AIDS Institute Partnership, Méthodes et Algorithmes pour la Bioinformatique (MAB), Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Africa Centre for Health and Population Studies, and University of KwaZulu-Natal (UKZN)-Medical Research Council of South Africa
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[INFO.INFO-BI]Computer Science [cs]/Bioinformatics [q-bio.QM] - Abstract
International audience; To characterize HIV-1 transmission dynamics in regions where the burden of HIV-1 is greatest, the “Phylogenetics and Networks for Generalised HIV Epidemics in Africa” consortium (PANGEA-HIV) is sequencing full-genome viral isolates from across sub-Saharan Africa. We report the first 3,985 PANGEA-HIV consensus sequences from four cohort sites (Rakai Community Cohort Study, n = 2,833; MRC/UVRI Uganda, n = 701; Mochudi Prevention Project, n = 359; Africa Health Research Institute Resistance Cohort, n = 92). Next-generation sequencing success rates varied: more than 80% of the viral genome from the gag to the nef genes could be determined for all sequences from South Africa, 75% of sequences from Mochudi, 60% of sequences from MRC/UVRI Uganda, and 22% of sequences from Rakai. Partial sequencing failure was primarily associated with low viral load, increased for amplicons closer to the 3′ end of the genome, was not associated with subtype diversity except HIV-1 subtype D, and remained significantly associated with sampling location after controlling for other factors. We assessed the impact of the missing data patterns in PANGEA-HIV sequences on phylogeny reconstruction in simulations. We found a threshold in terms of taxon sampling below which the patchy distribution of missing characters in next-generation sequences (NGS) has an excess negative impact on the accuracy of HIV-1 phylogeny reconstruction, which is attributable to tree reconstruction artifacts that accumulate when branches in viral trees are long. The large number of PANGEA-HIV sequences provides unprecedented opportunities for evaluating HIV-1 transmission dynamics across sub-Saharan Africa and identifying prevention opportunities. Molecular epidemiological analyses of these data must proceed cautiously because sequence sampling remains below the identified threshold and a considerable negative impact of missing characters on phylogeny reconstruction is expected.
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- 2017
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19. H3ABioNet, a sustainable pan-African bioinformatics network for human heredity and health in Africa
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Samson Pandam Salifu, Radhika Khetani, Jelili Oyelade, Anmol Kiran, Cornelis Victor Jongeneel, Raphael Zozimus Sangeda, Kais Ghedira, Faisal M. Fadlelmola, Ayton Pierre Meintjes, Jen Cornick, Daniel Masiga, Khalid SADKI, Shakuntala Baichoo, Samar Kamal Kassim, Scott Hazelhurst, Azeddine Ibrahimi, Ozlem Tastan Bishop, Judit Kumuthini, Arox Wadson Kamng'ona, Rehab Ahmed, Nicola J Mulder, Dean Everett, Ahmed Moussa, Julie Makani, Chimusa Emile Rugamika, Jean-Baka Domelevo Entfellner, Phelelani Mpangase, Marion Adebiyi, Mohamed Alibi, Peter Van Heusden, Winston Hide, Victor Osamor, Hugh-George Patterton, Christopher Fields, Benjamin Kumwenda, Itunuoluwa Isewon, Souiai Oussama, Niklas Blomberg, Bruno Mmbando, Benard Kulohoma, Nicki Tiffin, Zahra Mungloo-Dilmohamud, Shaun Aron, Patrick Musicha, Stochastic Studies and Statistics, University of Cape Town, Department of Computer and Information Sciences, Covenant University, Centre National de Transfusion Sanguine, Rabat, Institut Pasteur de Tunis, Réseau International des Instituts Pasteur (RIIP), Noguchi Memorial Institute for Medical Research [Accra, Ghana] (NMIMR), University of Ghana, University of Sciences, Techniques and Technology of Bamako, University of Liverpool, University of Khartoum, Institut National de Recherche Agronomique, Rabat, Botswana Harvard AIDS Institute Partnership, Université Mohammed Premier [Oujda], University of the Witwatersrand [Johannesburg] (WITS), University of Sheffield, Sheffield Institute for Translational Neuroscience, Department of Biotechnology Laboratory (Med-Biotech), Mohammed V University in Rabat, University of Mauritius, University of Illinois at Urbana-Champaign [Urbana], University of Illinois System, Université Grenoble Alpes - UFR Médecine (UGA UFRM), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt, Uganda Virus Research Institute, Entebbe, Uganda, Centre for Proteomic and Genomic Research, Cape Town, South Africa, University of Dar es Salaam, Dar es Salaam, Tanzania, Muhimbili University of Health and Allied Sciences, Zagazig University, International Centre of Insect Physiology and Ecology, Nairobi, Kenya, Institut de Chimie de Strasbourg, Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), National Biotechnology Development Agency, Abuja, Nigeria, Centre de Recherche Médicale et Sanitaire (Niamey, Niger) (CERMES), Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Department of Biomedical Sciences, University of Cape Town, Faculty of Health Sciences, University of the Free State [South Africa], Institut Pasteur du Maroc, Faculty of Sciences of Rabat, University Mohammed V of Rabat, Rabat, Morocco, Institut National d'Hygiène, Rabat, Morocco, Rhodes University, Grahamstown, University of the Western Cape, Cape Town, Management and Development for Health, Dar es Salaam, Tanzania, and Musicha, P
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Resource ,0301 basic medicine ,Genetics, Medical ,Genomic research ,[SDV]Life Sciences [q-bio] ,Black People ,Genomics ,Health Promotion ,Biology ,MESH: Africa ,SUSCEPTIBILITY ,ANCESTRY ,Bioinformatics ,TUBERCULOSIS ,DISEASE ,03 medical and health sciences ,Human health ,Computer Systems ,Genetics ,Humans ,MESH: Genetics, Medical ,MESH: Genetic Variation ,GENOME-WIDE ASSOCIATION ,Human heredity ,Genetics (clinical) ,2. Zero hunger ,MESH: Humans ,Pan african ,MESH: Genomics ,1. No poverty ,MESH: Computer Systems ,Computational Biology ,Genetic Variation ,Popularity ,Human genetics ,3. Good health ,030104 developmental biology ,Health promotion ,Africa ,MESH: Health Promotion ,MESH: African Continental Ancestry Group ,MESH: Computational Biology - Abstract
International audience; The application of genomics technologies to medicine and biomedical research is increasing in popularity, made possible by new high-throughput genotyping and sequencing technologies and improved data analysis capabilities. Some of the greatest genetic diversity among humans, animals, plants, and microbiota occurs in Africa, yet genomic research outputs from the continent are limited. The Human Heredity and Health in Africa (H3Africa) initiative was established to drive the development of genomic research for human health in Africa, and through recognition of the critical role of bioinformatics in this process, spurred the establishment of H3ABioNet, a pan-African bioinformatics network for H3Africa. The limitations in bioinformatics capacity on the continent have been a major contributory factor to the lack of notable outputs in high-throughput biology research. Although pockets of high-quality bioinformatics teams have existed previously, the majority of research institutions lack experienced faculty who can train and supervise bioinformatics students. H3ABioNet aims to address this dire need, specifically in the area of human genetics and genomics, but knock-on effects are ensuring this extends to other areas of bioinformatics. Here, we describe the emergence of genomics research and the development of bioinformatics in Africa through H3ABioNet.
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- 2016
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20. Point-of-Care Cepheid Xpert HIV-1 Viral Load Test in Rural African Communities Is Feasible and Reliable
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Natasha O. Moraka, Sikhulile Moyo, Max Essex, Corretah Boleo, Kathleen E. Wirth, Rosemary Musonda, Eric J. Tchetgen Tchetgen, Vladimir Novitsky, Kathleen M. Powis, Joseph Makhema, Shahin Lockman, Boitumelo Seraise, Lucy Mupfumi, Comfort Maphorisa, Terence Mohammed, Tendani Gaolathe, Kara Bennett, Philemon Sebogodi, Simani Gaseitsiwe, Mélanie Prague, Molly Pretorius Holme, Erik van Widenfelt, Botswana Harvard AIDS Institute Partnership, Harvard T.H. Chan School of Public Health, Statistics In System biology and Translational Medicine (SISTM), Inria Bordeaux - Sud-Ouest, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)- Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Massachusetts General Hospital [Boston], Harvard School of Public Health, and Prague, Mélanie
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Rural Population ,0301 basic medicine ,Microbiology (medical) ,Point-of-care testing ,030106 microbiology ,[MATH.MATH-DS]Mathematics [math]/Dynamical Systems [math.DS] ,Human immunodeficiency virus (HIV) ,[MATH.MATH-DS] Mathematics [math]/Dynamical Systems [math.DS] ,HIV Infections ,medicine.disease_cause ,Sensitivity and Specificity ,Specimen Handling ,03 medical and health sciences ,[SDV.IMM.VAC] Life Sciences [q-bio]/Immunology/Vaccinology ,0302 clinical medicine ,Viral genetics ,[MATH.MATH-ST]Mathematics [math]/Statistics [math.ST] ,Virology ,Antiretroviral Therapy, Highly Active ,Humans ,Medicine ,In patient ,030212 general & internal medicine ,[MATH.MATH-ST] Mathematics [math]/Statistics [math.ST] ,Point of care ,Botswana ,business.industry ,[SDV.IMM.IMM]Life Sciences [q-bio]/Immunology/Immunotherapy ,Viral Load ,Antiretroviral therapy ,3. Good health ,Cross-Sectional Studies ,Point-of-Care Testing ,[SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie ,HIV-1 ,RNA, Viral ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,[SDV.IMM.IMM] Life Sciences [q-bio]/Immunology/Immunotherapy ,[SDV.IMM.VAC]Life Sciences [q-bio]/Immunology/Vaccinology ,business ,Combination prevention ,Viral load - Abstract
Routine monitoring of HIV-1 RNA or viral load (VL) in patients on antiretroviral therapy (ART) is important, but there are multiple impediments to VL testing in resource-constrained settings. An accurate point-of-care (POC) HIV-1 VL test could alleviate many of these challenges. We compared the performance of the Cepheid Xpert HIV-1 VL assay against the laboratory-based Abbott m 2000sp/ m 2000rt assay (Abbott assay). ART-naive individuals participating in the Botswana Combination Prevention Project in 20 communities provided EDTA-blood specimens during household surveys. Both the POC Xpert HIV-1 VL and Abbott assays were performed on specimens sampled from 277 individuals. We found a high correlation between the Xpert HIV-1 VL and Abbott assay results ( r 2 = 0.92; P < 0.001). The overall mean difference in the HIV-1 RNA values obtained by Xpert HIV-1 VL assay and Abbott assay was 0.34 log 10 copies/ml (95% confidence interval [CI], 0.26 to 0.40 log 10 copies/ml) ( P < 0.001). Using a clinically relevant level of 1,000 copies/ml as a threshold, agreement was 90.6% (95% CI, 87.9 to 93.1%), with a sensitivity of 98.6% (95% CI, 97.2 to 100%). The two methods agreed on their detectability of HIV-1 RNA (>40 copies/ml) at 97.1% (95% CI, 95.5 to 98.7%), with a sensitivity of 99.6% (95% CI, 97.2 to 100%). The POC Cepheid Xpert HIV-1 VL assay showed high agreement and accuracy with a laboratory-based method of HIV-1 RNA testing. The POC Xpert HIV-1 VL assay tended to overestimate HIV-1 VL, although the difference was below a clinically relevant threshold of 0.5 log 10 copies/ml. The POC Cepheid Xpert HIV-1 VL assay is a promising tool for monitoring patients on ART in southern Africa.
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- 2016
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21. Improving access to liposomal amphotericin B worldwide - Authors' reply.
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Lee JSF, Sued O, Ribeiro I, Jarvis JN, and Burry J
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Competing Interests: JNJ reports funding from the National Institute for Health and Care Research and the US Centers for Disease Control and Prevention. All other authors declare no competing interests.
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- 2025
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22. Disparities in adult women's access to contraception during COVID-19: a multi-country cross-sectional survey.
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Cavagnis S, Ryan R, Mussa A, Hargreaves JR, Tucker JD, and Morroni C
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During the COVID-19 pandemic, family planning services over the world have been disrupted. There are still uncertainties about the impact on access to contraception, particularly among marginalised populations. This study aimed to assess the effect of COVID-19 on women's access to contraception, focusing on those experiencing loss of income and self-isolation. The International Sexual Health and Reproductive Health (I-SHARE) survey collected data from 5,216 women in 30 countries. Multivariable logistic regression was conducted to assess the association between loss of income during the pandemic, self-isolation and reduced access to contraception. Women experiencing loss of income and those who had self-isolated had reduced access to contraception (respectively aOR 2.3 and 1.7, for both p < 0.001). Most women reported inaccessibility of health centres, fear of COVID-19, and stockouts as reasons for reduced access. This study highlights how socio-demographic differences may have impacted access to contraception during the pandemic. People experiencing income loss and self-isolation might have faced increased barriers to family planning during the pandemic. Contraception should be prioritised in times of crisis: when planning services, financial support, telehealth and other measures should be implemented in order to increase access and reduce inequalities., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (© 2024 Cavagnis, Ryan, Mussa, Hargreaves, Tucker and Morroni.)
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- 2024
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23. A qualitative assessment of barriers to iron and folic acid supplementation among pregnant women in Botswana.
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Kebaabetswe P, Diseko M, Zash R, Mayondi G, Mabuta J, Mmalane M, Makhema J, Lockman S, Moeng L, Lowenthal E, Shapiro R, and Caniglia EC
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- Humans, Female, Pregnancy, Botswana, Adult, Young Adult, Pregnant Women psychology, Health Services Accessibility, Interviews as Topic, Adolescent, Folic Acid administration & dosage, Dietary Supplements, Qualitative Research, Iron administration & dosage, Prenatal Care statistics & numerical data, Health Knowledge, Attitudes, Practice
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Background: Antenatal iron and folic acid (IFA) supplementation remains an effective strategy in the prevention of maternal anemia and low birthweight and is universally recommended by WHO. However, uptake of IFA has varied globally due to challenges with acceptability, supply and distribution, counselling and knowledge, and access to health services. In Botswana, nearly one-third of pregnant women engaged in antenatal care do not receive IFA, despite it being standard of care. The objectives of this study were to assess knowledge of and barriers and facilitators to IFA supplementation before and during pregnancy., Methods: We conducted qualitative interviews with two key stakeholder groups at two different levels-the individual level (pregnant women) and the service delivery level (health care providers). Here, we present results from interviews with pregnant women at two representative antenatal clinic sites in Botswana in 2022., Results: Pregnant women were motivated to be healthy and were knowledgeable about the benefits of supplementation during pregnancy to mothers and their infants; however, women knew more about the benefits of iron than folic acid. Most women were in favor of receiving IFA supplementation prior to pregnancy and receiving fortified foods. Several key barriers were identified: lack of supplement availability in the clinics, poverty, side effects, number of tablets, and adherence. Approaches to overcome these barriers included improving supplement availability, improving health education, increasing supply of nutritious and fortified foods, backyard gardens, and increasing family and monetary support., Conclusions: Our study identified a need to 1) increase the availability of supplementation at antenatal clinics and 2) improve education regarding supplementation to include information about the benefits of folic acid and other micronutrients. Implementation research is needed to ascertain whether increasing supply and improving education could increase utilization of supplementation during pregnancy, with the ultimate goal of improving maternal and infant outcomes., Competing Interests: Declarations. Ethics approval and consent to participate: The study was approved by the Institutional Review Board at the University of Pennsylvania Perelman School of Medicine and by the Human Research Development Council (HRDC) in Botswana. All personnel involved in the conduct of this study had completed Human Subjects Protection Training. The study coordinator made sure that, throughout the study, all relevant ethical principles for conducting interviews with the relevant stakeholders were observed. Key ethical principles observed by the research team included being sensitive to beliefs, manners, and customs of participants, acting with integrity and honesty with participants, ensuring a respectful communication and contact with participants, protecting the anonymity and confidentiality of individual information, and obtaining informed consent from everyone interviewed. Participants were given the liberty to not answer questions they did not feel comfortable answering and could withdraw their participation at any point during the interview. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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24. HepB-CpG vs HepB-Alum Vaccine in People With HIV and Prior Vaccine Nonresponse: The BEe-HIVe Randomized Clinical Trial.
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Marks KM, Kang M, Umbleja T, Cox A, Vigil KJ, Ta NT, Omoz-Oarhe A, Perazzo H, Kosgei J, Hatlen T, Price J, Katsidzira L, Supparatpinyo K, Knowles K, Alston-Smith BL, Rathod P, and Sherman KE
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Importance: Nonresponse to hepatitis B vaccine is common among people with HIV, resulting in vulnerability to infection with hepatitis B virus (HBV)., Objective: To compare the seroprotection response achieved with a 2-dose (noninferiority, 10% margin) and a 3-dose hepatitis B vaccine with a cytosine phosphoguanine adjuvant (HepB-CpG vaccine) vs a conventional 3-dose hepatitis B vaccine with an aluminum hydroxide adjuvant (HepB-alum vaccine) in people with HIV and prior nonresponse to HepB-alum vaccine., Design, Setting, and Participants: This phase 3, open-label, randomized clinical trial included people with HIV receiving antiretroviral therapy (CD4 cell count ≥100 cells/μL and HIV RNA <1000 copies/mL) without past or present serological evidence of having HBV or a response to hepatitis B vaccine. From December 2020 to February 2023, 561 adults were enrolled in the study at 41 sites in 10 countries in Africa, Asia, North America, and South America with follow-up for the primary outcome analysis through September 4, 2023., Interventions: Participants were randomly assigned to receive 2 doses of HepB-CpG vaccine administered intramuscularly at weeks 0 and 4; 3 doses of HepB-CpG vaccine administered intramuscularly at weeks 0, 4, and 24; or 3 doses of HepB-alum vaccine administered intramuscularly at weeks 0, 4, and 24., Main Outcomes and Measures: The primary outcome was a seroprotection response to hepatitis B vaccine (defined as level of antibody titer against hepatitis B surface antigen [HBsAg] ≥10 mIU/mL) at week 12 for the 2-dose regimen (8 weeks after dose 2) and at week 28 for 3-dose regimens (4 weeks after dose 3). Key secondary outcomes included seroprotection response at additional time points, antibody titer against HBsAg, and adverse events within 4 weeks of hepatitis B vaccination., Results: Of 561 participants included in the analysis (median age, 46 years [IQR, 31-56 years]); 64% were male; 17% of participants were Asian, 42% were Black, and 35% were White), a seroprotection response was achieved in 93.1% who received 2 doses of HepB-CpG vaccine (n = 174), in 99.4% who received 3 doses of HepB-CpG vaccine (n = 169), and in 80.6% who received 3 doses of HepB-alum vaccine (n = 165). The stratified difference in seroprotection response between the 2-dose HepB-CpG vaccine group and the 3-dose HepB-alum vaccine group was 12.5% (97.5% CI, 4.1%-20.9%), achieving noninferiority and indicating superiority. The 3-dose HepB-CpG vaccine regimen was superior to the 3-dose HepB-alum vaccine regimen (stratified difference in seroprotection response, 18.4% [repeated 97.5% CI, 10.4%-26.2%]). By week 12, more than 90% of participants who received HepB-CpG vaccine achieved a seroprotection response. The 3-dose regimen of HepB-CpG vaccine achieved a higher proportion of participants with antibody titer against HBsAg greater than 1000 mIU/mL (78.1%) vs the other 2 regimen groups (26.4% for 2 doses of HepB-CpG vaccine and 35.2% for 3 doses of HepB-alum vaccine). No unexpected safety issues were observed., Conclusions and Relevance: Among people with HIV and nonresponse to prior hepatitis B vaccination, both the 2-dose and 3-dose regimens of HepB-CpG vaccine achieved a superior seroprotection response compared with 3 doses of HepB-alum vaccine., Trial Registration: ClinicalTrials.gov Identifier: NCT04193189.
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- 2024
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25. Prevalence of sexually transmitted infection in pregnancy and their association with adverse birth outcomes: a case-control study at Queen Elizabeth Central Hospital, Blantyre, Malawi.
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van der Veer C, Kondoni C, Kuyere A, Mtonga F, Nyasulu V, Shaba G, Morroni C, Gadama G, Gadama L, Kawaza K, Dube Q, French N, Lissauer D, and Freyne B
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- Humans, Female, Case-Control Studies, Pregnancy, Malawi epidemiology, Prevalence, Adult, Infant, Newborn, Young Adult, Syphilis epidemiology, Pregnancy Outcome epidemiology, Gonorrhea epidemiology, HIV Infections epidemiology, Chlamydia Infections epidemiology, Infant, Low Birth Weight, Pregnancy Complications, Infectious epidemiology, Pregnancy Complications, Infectious microbiology, Sexually Transmitted Diseases epidemiology
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Background: There are limited data on the epidemiology of sexually transmitted infections (STI) and their contribution to adverse birth outcomes (ABO) in sub-Saharan Africa (SSA). We performed a case-control study to assess the prevalence of STI and their association with ABO among women attending Queen Elizabeth Central Hospital, Blantyre, Malawi., Methods: A composite case definition for ABO included stillborn, preterm and low birthweight infants and infants admitted to neonatal intensive care unit within 24 hours of birth. Following recruitment of an infant with an ABO, the next born healthy infant was recruited as a control. Multiplex PCR for Neisseria gonorrhoeae (NG), Chlamydia trachomatis (CT) and Trichomonas vaginalis (TV) was performed on maternal vaginal swabs. HIV and syphilis status was determined on maternal and infant serum. For syphilis, we used combined treponemal/non-treponemal rapid point-of-care tests in parallel with rapid plasma reagin tests, PCR for Treponema pallidum and clinical parameters to diagnose and stage the infection. We compared STI positivity between cases and controls., Results: We included 259 cases and 251 controls. Maternal prevalence of STI was 3.1%, 2.7% and 17.1% for NG, CT and TV, respectively. Maternal prevalence of untreated syphilis was 2.0% and 6.1% for early stage and late/unknown stage, respectively; prevalence of treated syphilis was 2.7%. The HIV prevalence was 16.5%. HIV infection significantly increased the odds for ABO (OR=3.31; 95% CI 1.10 to 9.91) as did NG positivity (OR=4.30; 95% CI 1.16 to 15.99). We observed higher rates of ABO among women with untreated maternal syphilis (early: OR=7.13; 95% CI 0.87 to 58.39, late/unknown stage: OR=1.43; 95% CI 0.65 to 3.15). Maternal TV and CT infections were not associated with ABO., Conclusion: STI prevalence among pregnant women in Malawi is comparable to other SSA countries. HIV, NG and untreated syphilis prevalence was higher among women with ABO compared with women with healthy infants., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY. Published by BMJ.)
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- 2024
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26. Dolutegravir- Versus Efavirenz-Based Treatment in Pregnancy: Impact on Red Blood Cell Folate Concentrations in Pregnant Women and Their Infants.
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Jacobson DL, Crider KS, DeMarrais P, Brummel S, Zhang M, Pfeiffer CM, Moore CA, McCarthy K, Johnston B, Mohammed T, Vhembo T, Kabugho E, Muzorah GA, Cassim H, Fairlie L, Machado ES, Ngocho JS, Shapiro RL, Serghides L, Chakhtoura N, Chinula L, and Lockman S
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- Humans, Female, Pregnancy, Adult, Infant, Newborn, Young Adult, Emtricitabine therapeutic use, Emtricitabine administration & dosage, Tenofovir therapeutic use, Adolescent, Infant, Alkynes, Cyclopropanes, Heterocyclic Compounds, 3-Ring therapeutic use, Heterocyclic Compounds, 3-Ring administration & dosage, Piperazines therapeutic use, HIV Infections drug therapy, HIV Infections blood, Benzoxazines therapeutic use, Benzoxazines administration & dosage, Oxazines therapeutic use, Anti-HIV Agents therapeutic use, Anti-HIV Agents administration & dosage, Folic Acid blood, Folic Acid administration & dosage, Pyridones therapeutic use, Pregnancy Complications, Infectious drug therapy, Pregnancy Complications, Infectious virology, Pregnancy Complications, Infectious blood, Erythrocytes chemistry
- Abstract
Background: In the International Maternal Pediatric Adolescent AIDS Clinical Trials (IMPAACT) 2010/VESTED study, pregnant women were randomized to initiate dolutegravir (DTG) + emtricitabine (FTC)/tenofovir alafenamide (TAF), DTG + FTC/tenofovir disoproxil fumarate (TDF), or efavirenz (EFV)/FTC/TDF., Methods: We assessed red blood cell (RBC) folate concentrations at maternal study entry and delivery, and infant birth. RBC folate outcomes were (1) maternal change entry to delivery (trajectory), (2) infant, and (3) ratio of infant-to-maternal delivery. Generalized estimating equation models for each log(folate) outcome were fit to estimate adjusted geometric mean ratio (Adj-GMR)/GMR trajectories (Adj-GMRTs) of each arm comparison in 340 mothers and 310 infants., Results: Overall, 90% of mothers received folic acid supplements and 78% lived in Africa. At entry, median maternal age was 25 years, gestational age was 22 weeks, CD4 count was 482 cells/μL, and log10 HIV RNA was 3 copies/mL. Entry RBC folate was similar across arms. Adj-GMRT of maternal folate was 3% higher in the DTG + FTC/TAF versus EFV/FTC/TDF arm (1.03 [95% confidence interval {CI}, 1.00-1.06]). The DTG + FTC/TAF arm had an 8% lower infant-maternal folate ratio (0.92 [95% CI, .78-1.09]) versus EFV/FTC/TDF., Conclusions: Results are consistent, with no clinically meaningful differences between arms for all RBC folate outcomes, and they suggest that cellular uptake of folate and folate transport to the infant do not differ in pregnant women starting DTG- versus EFV-based antiretroviral therapy., Clinical Trials Registration: NCT03048422., Competing Interests: Potential conflicts of interest. P. D. and S. B. have received funds from ViiV/GSK that were paid to Harvard. All other authors report no potential conflicts of interest. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed., (© The Author(s) 2024. Published by Oxford University Press on behalf of Infectious Diseases Society of America. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
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- 2024
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27. Use of an Ethinyl Estradiol/Etonogestrel Vaginal Ring Alters Vaginal Microbial Communities in Women with HIV.
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Tobin NH, Brooker SL, Li F, Coombs RW, Cohn SE, Moran L, Leon M, Chotirosniramit N, Jalil E, Chakalisa UA, Scarsi KK, Zorrilla CD, Godfrey C, and Aldrovandi GM
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Background: HIV-1 antiretroviral therapy (ART) alters hormonal contraceptive levels delivered via intravaginal ring (IVR) in a regimen specific manner. We explored the role of the IVR on vaginal microbial communities, vaginal short chain fatty acids (SCFAs), vaginal HIV shedding, and the effect of vaginal microbes on hormone concentrations in cisgender women with HIV (WWH)., Methods: Vaginal microbes were assessed by 16S RNA sequencing of weekly vaginal swabs, vaginal SCFA by mass spectrometry, HIV-1 shedding by nucleic acid amplification on vaginal aspirates, and bacterial vaginosis by Nugent scoring from 74 participants receiving an etonorgestrel/ethinyl estradiol (ENG/EE) intravaginal ring while on no ART (N=25), efavirenz-based ART (N=25), or atazanavir-based ART (N=24)., Results: At baseline, microbial communities of the 64 substudy eligible participants robustly classified as Lactobacillus crispatus--dominant (n=8), L. gasseri-dominant (n=2), L. iners-dominant (n=17), or mixed anaerobic communities (n=37). During IVR therapy, there was an increased probability of Lactobacillus-dominant community state types (CSTs) (odds-ratio=1.61, p=0.04). Vaginal CSTs were associated with Nugent scores. Bacterial vaginosis-associated bacteria were associated with significantly higher and L. iners with lower Nugent Scores (all p adj <0.1). Lactic acid levels were correlated with the relative abundance of Lactobacillus species (r2=0.574; p<0.001). Vaginal shedding of HIV-1 was less common in women with L. crispatus-dominant microbiomes (p=0.04). Mixed anaerobic vaginal communities modulated EE concentrations in a regimen-specific manner., Conclusions: Combined ENG/EE IVR therapy was associated with an increase in Lactobacillus-dominant vaginal microbial communities in WWH and may benefit those with bacterial vaginosis. EE levels were altered by the vaginal microbiota., (Published by Oxford University Press on behalf of Infectious Diseases Society of America 2024.)
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- 2024
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28. Subsequent pregnancies in the IMPAACT 2010/VESTED Trial: high rate of adverse outcomes in women living with HIV.
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Fairlie L, Brummel S, Ziemba L, Coletti A, Chinula L, Shapiro R, Stringer J, Malonga G, Browning R, Chakhtoura N, Mmbaga BT, Mhembere TP, Omoz-Oarhe A, Nagaddya B, Naidoo M, Hoffman RM, and Lockman S
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- Adult, Female, Humans, Infant, Newborn, Pregnancy, Young Adult, Abortion, Spontaneous epidemiology, Alkynes, Benzoxazines adverse effects, Benzoxazines therapeutic use, Cyclopropanes therapeutic use, Emtricitabine therapeutic use, Emtricitabine adverse effects, Heterocyclic Compounds, 3-Ring adverse effects, Heterocyclic Compounds, 3-Ring therapeutic use, Oxazines therapeutic use, Oxazines adverse effects, Piperazines adverse effects, Piperazines therapeutic use, Premature Birth epidemiology, Pyridones therapeutic use, Pyridones adverse effects, Stillbirth epidemiology, Tenofovir therapeutic use, Tenofovir adverse effects, Anti-HIV Agents therapeutic use, Anti-HIV Agents adverse effects, HIV Infections drug therapy, HIV Infections complications, Pregnancy Complications, Infectious drug therapy, Pregnancy Outcome
- Abstract
Introduction: Women with HIV (WHIV) have higher risks of adverse pregnancy outcomes, particularly in the absence of antiretroviral treatment(ART), and timing of ART may impact risk., Methods: In IMPAACT 2010 (VESTED), 643 pregnant WHIV in 9 countries were randomized 1:1:1 to initiate ART: dolutegravir (DTG)+emtricitabine(FTC)/tenofovir alafenamide(TAF); DTG+FTC/tenofovir disoproxil fumarate (TDF) or efavirenz (EFV)/FTC/TDF. We describe adverse pregnancy outcomes in women with a subsequent pregnancy during 50 weeks of postpartum follow-up: spontaneous abortion (<20 weeks), stillbirth (≥20 weeks), preterm delivery (<37 weeks) and small-for-gestational-age (SGA)., Results: Of 643 women, 19 (3%) had 20 subsequent pregnancies while receiving ART at conception: DTG/FTC/TAF(3), DTG/FTC/TDF(2), EFV/FTC or lamivudine(3TC)/TDF(12), EFV/abacavir/3TC (1) and no ART(1). Four spontaneous abortions, 3 stillbirths, and 1 induced abortion occurred. Three (25%) of 12 liveborn infants were preterm (24-, 26- and 36-weeks' gestation). Only 12 (60%) subsequent pregnancies resulted in live birth, and at least 1 adverse pregnancy outcome occurred in 11/19 (58%) (induced abortion excluded). Of 7 women who experienced spontaneous abortion/stillbirth in the subsequent pregnancy, 4 experienced a stillbirth and 1 a neonatal death as outcomes of their earlier index pregnancy. No congenital anomalies were reported., Conclusions: Adverse pregnancy outcomes were common in this cohort of WHIV who conceived on ART shortly after an index pregnancy, 35% ended in stillbirth or spontaneous abortion. The majority of fetal losses occurred in women with recent prior pregnancy loss. Data from larger cohorts of WHIV conceiving on ART and surveillance are needed to elucidate rates and predictors of adverse pregnancy outcome. (249 words)., Competing Interests: Competing interests SB and LZ received NIH funding and ViiV Healthcare funding, both paid to their institution. RH serves on the editorial board for Elsevier’s Clinical Key, a clinical resource for clinicians.
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- 2024
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29. Lamivudine dosing for preterm infants exposed to HIV: a population pharmacokinetic modelling and simulation study.
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Bekker A, Capparelli EV, Mirochnick M, Clarke DF, Cotton MF, Shapiro R, McCarthy K, Moye J, Violari A, Chokephaibulkit K, Abrams E, Penazzato M, Ruel TD, and Cressey TR
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- Humans, Female, Infant, Newborn, Male, Infant, Gestational Age, Computer Simulation, Lamivudine pharmacokinetics, Lamivudine administration & dosage, HIV Infections drug therapy, Infant, Premature, Anti-HIV Agents pharmacokinetics, Anti-HIV Agents administration & dosage, Anti-HIV Agents therapeutic use
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Objectives: To develop a pragmatic twice daily lamivudine dosing strategy for preterm infants from 24 to 37 completed weeks of gestation., Methods: Data were combined from eight pharmacokinetic studies in neonates and infants receiving lamivudine oral solution. A population pharmacokinetic model was developed using non-linear mixed effects regression. Different lamivudine dosing strategies, stratified by gestational age at birth (GA) bands, were simulated in a virtual population of preterm infants, aimed at maintaining lamivudine drug exposures (AUC0-12) within a reference target range of 2.95 to 13.25 µg·h/mL, prior to switching to WHO-weight band doses when ≥4 weeks of age and weighing ≥3 kg., Results: A total of 154 infants (59% female) contributed 858 lamivudine plasma concentrations. Median (range) GA at birth was 38 (27-41) weeks. At the time of first pharmacokinetic sampling infants were older with median postnatal age (PNA) of 6.3 (0.52-26.6) weeks. Lamivudine concentrations were described by a one-compartment model, with CL/F and V/F allometrically scaled to weight. Maturation of CL/F was described using an Emax model based on PNA. CL/F was also adjusted on GA to allow extrapolation for extreme prematurity. Simulations predicted an optimal lamivudine dosing for infants GA ≥24 to <30 weeks of 2 mg/kg twice daily from birth until weighing 3 kg; and for GA ≥30 to <37 weeks, 2 mg/kg twice daily for the first 4 weeks of life, followed by 4 mg/kg twice daily until weighing 3 kg., Conclusions: Model-based predictions support twice daily pragmatic GA band dosing of lamivudine for preterm infants, but clinical validation is warranted., (© The Author(s) 2024. Published by Oxford University Press on behalf of British Society for Antimicrobial Chemotherapy. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
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- 2024
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30. Pilot Test of Mopati, a Multi-Level Adherence Intervention for People Living with HIV and Their Treatment Partners in Botswana.
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Bogart LM, Phaladze N, Kgotlaetsile K, Klein DJ, Goggin K, and Mosepele M
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- Adult, Female, Humans, Male, Middle Aged, Anti-HIV Agents therapeutic use, Botswana, Motivation, Pilot Projects, Self Efficacy, Caregivers psychology, HIV Infections psychology, HIV Infections drug therapy, Medication Adherence statistics & numerical data
- Abstract
Background: Low-cost, scalable strategies are necessary to reach the UNAIDS 2030 target of ending HIV as a public health threat. Use of treatment partners, informal caregivers selected by people living with HIV to support antiretroviral therapy adherence, is one such strategy that is included in many countries' HIV guidelines, including Botswana, a country with high HIV prevalence., Method: From June 2021 to June 2022, we pilot tested a clinic-based treatment partner intervention ("Mopati"), including standardized language for providers to guide patients on treatment partner selection and workshops to train treatment partners on providing non-directive support to patients using a non-confrontational, non-judgmental approach. Sixty unsuppressed patients (30 per clinic) and 45 treatment partners (17 intervention, 28 control) were recruited from an intervention-control clinic matched-pair in Gaborone, Botswana., Results: Mopati had medium-to-large effects on increasing patients' adherence, adherence self-efficacy, intrinsic adherence motivation, and perceived non-directive support from treatment partners, and decreasing treatment partner caregiver burden. Aggregate viral suppression rates significantly increased in the intervention (vs. control) clinic. Qualitative data from 14 clinic staff, 21 patients, and 16 treatment partners indicated that Mopati was viewed as effective. Providers said the guidance empowered them to be proactive in communicating about adherence; most reported using the guidance., Conclusion: This study shows preliminary support for the use of treatment partners in HIV care, and further evidence for interventions that leverage patients' existing support. This research can inform ways to improve adherence to HIV treatment as well as the treatment of HIV-related comorbid conditions in lower-resource settings., Trial Registration: ClinicalTrials.gov Identifier: NCT04796610., (© 2024. The Author(s).)
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- 2024
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31. Paving the way for affordable and equitable liposomal amphotericin B access worldwide.
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Lee JSF, Cohen RM, Khan RA, Burry J, Casas EC, Chung HY, Costa LH, Ford N, Galvao DLN, Giron N, Jarvis JN, Mondal M, Odionyi JJ, Casas CP, Rangaraj A, Rode J, Ruffell C, Sued O, and Ribeiro I
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- Humans, Health Services Accessibility, Global Health, Developing Countries, Drugs, Generic economics, Drugs, Generic supply & distribution, Amphotericin B economics, Antifungal Agents economics, Antifungal Agents supply & distribution, Antifungal Agents therapeutic use
- Abstract
Amphotericin B has long been crucial for treating many serious infectious diseases, such as invasive fungal infections and visceral leishmaniasis, particularly for patients who are immunocompromised, including those with advanced HIV infection. The conventional amphotericin B deoxycholate formulation has largely been replaced in high-income countries with liposomal amphotericin B (LAmB), which has many advantages, including lower rates of adverse events, such as nephrotoxicity and anaemia. Despite an evident need for LAmB in low-income and middle-income countries, where mortality from invasive fungal infections is still substantial, many low-income and middle-income countries still often use the amphotericin B deoxycholate formulation because of a small number of generic formulations and the high price of the originator LAmB. The pricing of LAmB is also highly variable between countries. Overcoming supply barriers through the availability of additional quality-assured, generic formulations of LAmB at accessible prices would substantially facilitate equitable access and have a substantial effect on mortality attributable to deadly fungal infections., Competing Interests: Declaration of interests JNJ reports funding from National Institute for Health and Care Research and US Centers for Disease Control and Prevention. All other authors declare no competing interests., (Copyright © 2024 World Health Organization; licensee Elsevier. This is an Open Access article published under the CC BY NC ND 3.0 IGO license which permits users to download and share the article for non-commercial purposes, so long as the article is reproduced in the whole without changes, and provided the original source is properly cited. This article shall not be used or reproduced in association with the promotion of commercial products, services or any entity. There should be no suggestion that WHO endorses any specific organisation, products or services. The use of the WHO logo is not permitted. This notice should be preserved along with the article's original URL.)
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- 2024
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32. Evaluating Chlamydia trachomatis and Neisseria gonorrhoeae screening and treatment among asymptomatic pregnant women to prevent preterm birth and low birthweight in Gaborone, Botswana: A secondary analysis from a non-randomised, cluster-controlled trial.
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Wynn A, Mussa A, Ryan R, Babalola CM, Hansman E, Ramontshonyana K, Tamuthiba L, Ndlovu N, Wilson ML, Ramogola-Masire D, Klausner JD, and Morroni C
- Subjects
- Humans, Female, Pregnancy, Adult, Botswana epidemiology, Infant, Newborn, Young Adult, Prenatal Care methods, Mass Screening methods, Anti-Bacterial Agents therapeutic use, Adolescent, Premature Birth prevention & control, Premature Birth epidemiology, Chlamydia Infections diagnosis, Chlamydia Infections epidemiology, Chlamydia Infections prevention & control, Gonorrhea epidemiology, Gonorrhea diagnosis, Gonorrhea prevention & control, Infant, Low Birth Weight, Pregnancy Complications, Infectious epidemiology, Pregnancy Complications, Infectious prevention & control, Pregnancy Complications, Infectious diagnosis, Chlamydia trachomatis isolation & purification, Neisseria gonorrhoeae isolation & purification
- Abstract
Objective: To evaluate the impact of screening and treating asymptomatic pregnant women for Chlamydia (C.) trachomatis and Neisseria (N.) gonorrhoeae infections on the frequency of preterm birth or low birthweight infants in Botswana., Design: Non-randomised, cluster-controlled trial., Setting: Four antenatal care clinics in Gaborone, Botswana., Population: Pregnant women aged ≥15 years, attending a first antenatal care visit, ≤27 weeks of gestation and without urogenital symptoms were eligible., Methods: Participants in the intervention clinics received screening (GeneXpert®, Cepheid) during pregnancy and at the postnatal visit. Participants in the standard-of-care clinics received screening at the postnatal visit only. We used multivariable logistic regression and post-estimation predictive margins analysis. Post-hoc analysis was conducted among sub-samples stratified by parity., Main Outcome Measures: Preterm birth (<37 weeks of gestation) and low birthweight (<2500 g)., Results: After controlling for parity, hypertension, antenatal care visits and clinic site, the predicted prevalence of preterm birth or low birthweight was lower in the intervention arm (11%) compared with the standard-of-care arm (16%) (adjusted odds ratio [aOR] 0.59; 95% confidence interval [CI] 0.28-1.24). In post-hoc analysis, the intervention was more effective than the standard-of-care (aOR 0.20; 95% CI 0.07-0.64) among nulliparous participants., Conclusion: A C. trachomatis and N. gonorrhoeae infection screening and treatment intervention among asymptomatic pregnant women may have reduced preterm birth or low birthweight outcomes, but results were not statistically significant. Post-hoc analysis found that the intervention reduced adverse outcomes among nulliparous participants., (© 2024 The Authors. BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.)
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- 2024
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33. Characterizing HIV drug resistance in cases of vertical transmission in the VESTED randomized antiretroviral treatment trial.
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Bishop MD, Korutaro V, Boyce CL, Beck IA, Styrchak SM, Knowles K, Ziemba L, Brummel SS, Coletti A, Jean-Philippe P, Chakhtoura N, Vhembo T, Cassim H, Owor M, Fairlie L, Moyo S, Chinula L, Lockman S, and Frenkel LM
- Subjects
- Humans, Female, Pregnancy, Adult, Infant, Newborn, Piperazines therapeutic use, Cyclopropanes, HIV-1 genetics, HIV-1 drug effects, Tenofovir therapeutic use, Heterocyclic Compounds, 3-Ring therapeutic use, Alkynes, Pyridones therapeutic use, Emtricitabine therapeutic use, Pregnancy Complications, Infectious drug therapy, Pregnancy Complications, Infectious virology, Benzoxazines therapeutic use, Oxazines therapeutic use, HIV Infections drug therapy, HIV Infections transmission, HIV Infections virology, Infectious Disease Transmission, Vertical prevention & control, Drug Resistance, Viral genetics, Anti-HIV Agents therapeutic use
- Abstract
Introduction: VESTED (NCT03048422) compared the safety and efficacy of three antiretroviral treatment ( ART ) regimens in pregnant and postpartum women: dolutegravir+emtricitabine/tenofovir alafenamide fumarate; dolutegravir+emtricitabine/tenofovir disoproxil fumarate ( TDF ); efavirenz/emtricitabine/TDF. Vertical HIV transmission ( VT ) occurred to 4/617 (0.60%) live-born infants, who were evaluated for HIV drug resistance ( HIVDR ) and other risk factors., Setting: In 2018-2020, pregnant (weeks-14-28) women living with HIV and ≤14 days of ART were enrolled at 22 international sites and followed with their infants through 50 weeks postpartum., Methods: HIV sequences derived by single genome amplification ( SGA ) from longitudinally collected specimens were assessed from VT Cases for HIVDR in protease, reverse transcriptase, integrase, and the nef 3'polypurine tract ( 3'PPT )., Results: The four Case mothers were prescribed efavirenz-based-ART for 1-7 days prior to randomization to study ART. Their infants received postnatal nevirapine+/-zidovudine prophylaxis and were breastfed. A total of 833 SGA sequences were derived. The "major" (Stanford HIVDR Score ≥60) non-nucleoside reverse transcriptase inhibitor ( NNRTI ) mutation (K103N) was detected persistently in one viremic mother, and likely contributed to VT of HIVDR. Major NNRTI HIVDR mutations were detected in all three surviving infants. No integrase, nor high frequencies of 3'PPT mutations conferring dolutegravir HIVDR were detected. The timing of HIV infant diagnosis, plasma HIV RNA levels and HIVDR suggests one in utero , one peripartum, one early, and one late breastfeeding transmission., Conclusions: VT was rare. New-onset NNRTI HIVDR in Case mothers was likely from efavirenz-ART prescribed prior to study dolutegravir-ART, and in one case appeared transmitted to the infant despite nevirapine prophylaxis., Competing Interests: Conflicts of Interest: All authors declare no conflicts of interest.
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- 2024
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34. Global guideline for the diagnosis and management of cryptococcosis: an initiative of the ECMM and ISHAM in cooperation with the ASM.
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Chang CC, Harrison TS, Bicanic TA, Chayakulkeeree M, Sorrell TC, Warris A, Hagen F, Spec A, Oladele R, Govender NP, Chen SC, Mody CH, Groll AH, Chen YC, Lionakis MS, Alanio A, Castañeda E, Lizarazo J, Vidal JE, Takazono T, Hoenigl M, Alffenaar JW, Gangneux JP, Soman R, Zhu LP, Bonifaz A, Jarvis JN, Day JN, Klimko N, Salmanton-García J, Jouvion G, Meya DB, Lawrence D, Rahn S, Bongomin F, McMullan BJ, Sprute R, Nyazika TK, Beardsley J, Carlesse F, Heath CH, Ayanlowo OO, Mashedi OM, Queiroz-Telles Filho F, Hosseinipour MC, Patel AK, Temfack E, Singh N, Cornely OA, Boulware DR, Lortholary O, Pappas PG, and Perfect JR
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- Humans, Practice Guidelines as Topic, Global Health, Meningitis, Cryptococcal diagnosis, Meningitis, Cryptococcal drug therapy, Cryptococcosis diagnosis, Cryptococcosis drug therapy, Antifungal Agents therapeutic use
- Abstract
Cryptococcosis is a major worldwide disseminated invasive fungal infection. Cryptococcosis, particularly in its most lethal manifestation of cryptococcal meningitis, accounts for substantial mortality and morbidity. The breadth of the clinical cryptococcosis syndromes, the different patient types at-risk and affected, and the vastly disparate resource settings where clinicians practice pose a complex array of challenges. Expert contributors from diverse regions of the world have collated data, reviewed the evidence, and provided insightful guideline recommendations for health practitioners across the globe. This guideline offers updated practical guidance and implementable recommendations on the clinical approaches, screening, diagnosis, management, and follow-up care of a patient with cryptococcosis and serves as a comprehensive synthesis of current evidence on cryptococcosis. This Review seeks to facilitate optimal clinical decision making on cryptococcosis and addresses the myriad of clinical complications by incorporating data from historical and contemporary clinical trials. This guideline is grounded on a set of core management principles, while acknowledging the practical challenges of antifungal access and resource limitations faced by many clinicians and patients. More than 70 societies internationally have endorsed the content, structure, evidence, recommendation, and pragmatic wisdom of this global cryptococcosis guideline to inform clinicians about the past, present, and future of care for a patient with cryptococcosis., Competing Interests: Declaration of interests AA reports grants from the Agence Nationale de la Recherche; serving as a consultant to Gilead Sciences; receiving speaking honoraria from Gilead Sciences and PR Edition; travel support from Gilead sciences and Pfizer; and patents with the Institut Pasteur. J-WA reports grants or contracts from WHO (fungal priority pathogens list) and receipt of equipment and materials from the Westmead Hospital Foundation. JB reports support from the Australian National Health and Medical Research Council and receipt of honoraria from Gilead. TAB reports a personal research fellowship from Gilead Sciences; investigator-led research grant from Pfizer; lecture honoraria and participation in advisory boards for Gilead Sciences, Mundipharma, and Pfizer; and participation in the Trial Steering Committee for a phase 2 trial of inhaled opelconazole (Pulmocide). FC reports speaker honoraria from, and being part of, an advisory board for Pfizer and United Medical. CCC reports receipt of an Early Career Fellowship from the Australian National Health and Medical Research Foundation, receipt of a speaker travel support for IDweek 2024, being a principal investigator in an early phase clinical trial unit, and was a recipient of the Australian National Health and Medical Research Council Early Career Fellowship (APP 1092160). MC reports grants from Cidara, F2G, Pfizer, and Janssen; receipt of honoraria from Pfizerm MSD and Gilead; and travel support from Pfizer. SCC reports untied educational grants from MSD Australia and F2G and is on the antifungal advisory boards of MSD Australia, Gilead Sciences, and F2G. OAC reports grants or contracts from BMBF, Cidara, EU-DG RTD (101037867), F2G, Gilead, MedPace, MSD, Mundipharma, Octapharma, Pfizer, and Scynexis; consulting fees from AbbVie, AiCuris, Biocon, Cidara, Gilead, IQVIA, Janssen, Matinas, MedPace, Menarini, Moderna, Molecular Partners, MSG-ERC, Noxxon, Octapharma, Pfizer, PSI, Scynexis, and Seres; honoraria for lectures from Abbott, AbbVie, Al-Jazeera Pharmaceuticals, Hikma, Gilead, Grupo Biotoscana/United Medical/Knight, MedScape, MedUpdate, Merck/MSD, Noscendo, Pfizer, Shionogi, and streamedup!; payment for expert testimony from Cidara; participation on a data safety monitoring board or advisory board from Boston Strategic Partners, Cidara, IQVIA, Janssen, MedPace, PSI, Pulmocide, Shionogi, and The Prime Meridian Group; a patent at the German Patent and Trade Mark Office (DE 10 2021 113 007·7); stocks from CoRe Consulting and EasyRadiology; other interests from Wiley; support from the German Federal Ministry of Research and Education; and funding by the Deutsche Forschungsgemeinschaft under Germany's Excellence Strategy (Cologne Cluster of Excellence on Cellular Stress Responses in Aging-associated Diseases, EXC 2030—390661388). J-PG reports speaker honoraria from Gilead, MundiPharma, and Pfizer. NPG reports grants from National Institutes of Health (USA), National Institute of Health and Care Research (UK), Medical Research Council (MRC; UK), Centers for Disease Control and Prevention (CDC; USA), and National Health Laboratory Service Research Trust (South Africa); participation in the ACACIA trial as part of the data safety monitoring board, project committee of DREAMM, project advisory committee for 5FC Crypto, and leadership roles in the Federation of Infectious Diseases Societies of Southern Africa. AHG reports grants from Gilead Sciences; personal fees from Amplyx, Astellas, Basilea, F2G, Gilead Sciences, Merck Sharp & Dohme, Mundipharma, Pfizer, and Scynexis; speaker honoraria from Gilead Sciences and MSD; and participation in an advisory board for Astellas, Mundipharma, Partner Therapeutics, and Pfizer. FH reports grants from Health Holland and European Society for Clinical Microbiology and Infectious Diseases; leadership roles as treasurer of the Netherlands Society for Medical Mycology, Chair of the Division Microbial Genomics of the Royal Netherlands Society for Microbiology, Vice-President International Society for Human and Animal Mycology (ISHAM); and receipt of evaluation kits from Bruker and Pathonostics. TSH reports receipt of an investigator award from Gilead Sciences, honoraria from Pfizer and Gilead Sciences, and participation in a data safety monitoring board or advisory board for Viamet and F2G. MH reports receipt of an European and Developing Countries Clinical Trials Partnership. JNJ reports support from the National Institute for Health Research; grants from European and Developing Countries Clinical Trials Partnership, joint global health trials (Wellcome Trust, MRC, and UK aid) and CDC; speaker fees from Gilead Sciences; participation on a data safety and monitoring board for the HARVEST, ARTIST, CASTLE, and ACACIA trials. GJ reports travel support to attend a meeting at ISHAM. NK was a speaker and advisor for Gilead Sciences, Merck/MSD, and Pfizer and a speaker for Astellas. MSL reports support from the Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), and National Institutes of Health (NIH). OL reports receipt of consulting fees and honoraria from Gilead Science and patents with INSERM APHP. OMM reports travel support for ISHAM meeting in India and being the country ambassador for Kenya for ISHAM. BJM reports being chair of the Australia and New Zealand Paediatric Infectious Diseases Group. DBM reports leadership role in the Crypto Meningitis advocacy group. RO reports receiving research and educational grant funding from Gilead Sciences, CDC Atlanta, and Pfizer Specialties and travel support from the CDC foundation. PGP reports grants from Mayne, Astellas, Scynexis, and Cidara and receipt of consulting fees from F2G and Cidara. AKP reports speaker honoraria for Gilead Science, Pfizer India, and Intas pharmaceutical. JRP reports grants from NIH, Appili, and Sfunga; royalties from Up-To-Date; and participation on a data safety monitoring board or advisory board from Pulmocide, EFFECT trial, and IMPRINT trial. FQ-TF reports receipt of speaker honoraria from Pfizer and United Medical, travel support and laboratory diagnostic kits from IMMY, and leadership roles in Infocus Latin America. JS-G reports speaker honoraria from Gilead and Pfizer and is on an advisory committee for Pfizer. AS reports grants from Astellas and receiving consulting fees from Scynexis. RSp has received speaker honoraria from Pfizer and reports being chair of Young European Confederation of Medical Mycology. TT reports receipt of honoraria from Pfizer, MSD, Asahikasei pharma, and Sumitomo pharma. AW reports a grant from UK Research and Innovation; receipt of consultant fees from Gilead and MundiPharma; speaker fees from F2G and Gilead; and participation as a data safety monitoring board member for the RECOVERY trial. All declarations are outside the submitted work. All other authors declare no competing interests., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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35. Diagnostic Prediction Model for Tuberculous Meningitis: An Individual Participant Data Meta-Analysis.
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Stadelman-Behar AM, Tiffin N, Ellis J, Creswell FV, Ssebambulidde K, Nuwagira E, Richards L, Lutje V, Hristea A, Jipa RE, Vidal JE, Azevedo RGS, Monteiro de Almeida S, Kussen GB, Nogueira K, Gualberto FAS, Metcalf T, Heemskerk AD, Dendane T, Khalid A, Ali Zeggwagh A, Bateman K, Siebert U, Rochau U, van Laarhoven A, van Crevel R, Ganiem AR, Dian S, Jarvis J, Donovan J, Nguyen Thuy Thuong T, Thwaites GE, Bahr NC, Meya DB, Boulware DR, and Boyles TH
- Subjects
- Humans, Logistic Models, Tuberculosis, Meningeal diagnosis, Tuberculosis, Meningeal cerebrospinal fluid, Tuberculosis, Meningeal microbiology
- Abstract
No accurate and rapid diagnostic test exists for tuberculous meningitis (TBM), leading to delayed diagnosis. We leveraged data from multiple studies to improve the predictive performance of diagnostic models across different populations, settings, and subgroups to develop a new predictive tool for TBM diagnosis. We conducted a systematic review to analyze eligible datasets with individual-level participant data (IPD). We imputed missing data and explored three approaches: stepwise logistic regression, classification and regression tree (CART), and random forest regression. We evaluated performance using calibration plots and C-statistics via internal-external cross-validation. We included 3,761 individual participants from 14 studies and nine countries. A total of 1,240 (33%) participants had "definite" (30%) or "probable" (3%) TBM by case definition. Important predictive variables included cerebrospinal fluid (CSF) glucose, blood glucose, CSF white cell count, CSF differential, cryptococcal antigen, HIV status, and fever presence. Internal validation showed that performance varied considerably between IPD datasets with C-statistic values between 0.60 and 0.89. In external validation, CART performed the worst (C = 0.82), and logistic regression and random forest had the same accuracy (C = 0.91). We developed a mobile app for TBM clinical prediction that accounted for heterogeneity and improved diagnostic performance (https://tbmcalc.github.io/tbmcalc). Further external validation is needed.
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- 2024
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36. Impact of efavirenz on hormone-positive breast cancer survival in women living with HIV.
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Johnson AT, Ntloedibe T, Mendez Reyes JE, Matshaba MS, Dryden-Peterson SL, and Chiao EY
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- Humans, Female, Middle Aged, Adult, Survival Analysis, Aged, Benzoxazines therapeutic use, Cyclopropanes therapeutic use, Alkynes, Breast Neoplasms mortality, Breast Neoplasms drug therapy, HIV Infections drug therapy, HIV Infections mortality, HIV Infections complications, Anti-HIV Agents therapeutic use
- Abstract
Women living with HIV and breast cancer have poorer survival than HIV-negative women. Efavirenz-estrogen interactions are documented; however, the survival impact is unknown. Survival between women with estrogen-receptor positive breast cancer taking efavirenz (n = 38) and nonefavirenz regimens (n = 51) were compared. The 5-year overall-survival was 48.9% [95% confidence interval (CI) 33.0-72.2 and 51.1% (95% CI 34.0-76.8)] in the efavirenz and nonefavirenz groups, respectively suggesting efavirenz is unlikely driving poorer survival in women living with HIV and estrogen-receptor positive breast cancer., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)
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- 2024
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37. Novel use of local analgesia prior to intramuscular magnesium sulphate injection compared to mixed local analgesia with magnesium sulphate to reduce pain: a randomised crossover study in patients being managed for eclampsia and preeclampsia.
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Jamieson M, Luckett R, and Hofmeyr GJ
- Abstract
Objective: The World Health Organization (WHO) recommended addition of local anesthetic to reduce the intense pain of intramuscular injection of 50% Magnesium Sulphate (MgSO
4 ) salt solution has been found to be ineffective. We tested whether giving the local anesthetic 5 min before the MgSO4 injection would reduce pain., Methods: We conducted a prospective cross-over trial where each participant with pre-eclampsia or eclampsia received sequential and mixed injection methods in random sequence during sequential MgSO4 administrations. Pain and preference were assessed using descriptive words, a numeric pain scale and direct comparison between the two injection methods. Differences were measured using the Wilcoxon signed rank test, risk ratios with 95% confidence intervals and the Chi squared or Fisher's test. The administration techniques were refined based on an initial pilot of 8 participants., Results: We enrolled 49 consented participants and analysed data from 41 post-pilot participants The sequential injection method had a non-significantly lower mean pain score than the mixed injection method (3.1 vs. 3.3, p = 0.44). Severe pain was reported for 3/41 vs. 9/41, p = 0.12. The sequential injection method was perceived to be more painful by 13 (37%) vs. 22 (63%) participants ( p = 0.03). The sequential injection was preferred by 21(60%) vs. 14 participants (40%) ( p = 0.1)., Conclusion: Our results consistently favoured the novel sequential injection method. The lack of statistical significance for most results is not surprising given the small sample size. Given the potential for clinically important benefits to women, a larger study to confirm these results is justified., Clinical Trial Registration: https://pactr.samrc.ac.za/, Identifier (PACTR202201521544765)., Competing Interests: GJH has a conflict of interest with respect to the MaternaWell Tray for blood loss monitoring after birth and receives royalties from UpToDate. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (© 2024 Jamieson, Luckett and Hofmeyr.)- Published
- 2024
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38. A mixed methods approach identifying facilitators and barriers to guide adaptations to InterCARE strategies: an integrated HIV and hypertension care model in Botswana.
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Gala P, Ponatshego P, Bogart LM, Youssouf N, Ramotsababa M, Van Pelt AE, Moshomo T, Dintwa E, Seipone K, Ilias M, Tonwe V, Gaolathe T, Hirschhorn LR, and Mosepele M
- Abstract
Background: Botswana serves as a model of success for HIV with 95% of people living with HIV (PLWH) virally suppressed. Yet, only 19% of PLWH and hypertension have controlled blood pressure. To address this gap, InterCARE, a care model that integrates HIV and hypertension care through a) provider training; b) adapted electronic health record; and c) treatment partners (peer support), was designed. This study presents results from our baseline assessment of the determinants and factors used to guide adaptations to InterCARE implementation strategies prior to a hybrid type 2 effectiveness-implementation study., Methods: This study employed a convergent mixed methods design across two clinics (one rural, one urban) to collect quantitative and qualitative data through facility assessments, 100 stakeholder surveys (20 each PLWH and hypertension, existing HIV treatment partners, clinical healthcare providers (HCPs), and 40 community leaders) and ten stakeholder key informative interviews (KIIs). Data were analyzed using descriptive statistics and deductive qualitative analysis organized by the Consolidated Framework for Implementation Research (CFIR) and compared to identify areas of convergence and divergence., Results: Although 90.3% of 290 PLWH and hypertension at the clinics were taking antihypertensive medications, 52.8% had uncontrolled blood pressure. Results from facility assessments, surveys, and KIIs identified key determinants in the CFIR innovation and inner setting domains. Most stakeholders (> 85%) agreed that InterCARE was adaptable, compatible and would be successful at improving blood pressure control in PLWH and hypertension. HCPs agreed that there were insufficient resources (40%), consistent with facility assessments and KIIs which identified limited staffing, inconsistent electricity, and a lack of supplies as key barriers. Adaptations to InterCARE included a task-sharing strategy and expanded treatment partner training and support., Conclusions: Integrating hypertension services into HIV clinics was perceived as more advantageous for PLWH than the current model of hypertension care delivered outside of HIV clinics. Identified barriers were used to adapt InterCARE implementation strategies for more effective intervention delivery., Trial Registration: ClinicalTrials.gov, ClinicalTrials.gov Identifier: NCT05414526 . Registered 18 May 2022 - Retrospectively registered., (© 2024. The Author(s).)
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- 2024
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39. Integrated management of cryptococcal meningitis and concurrent opportunistic infections to improve outcomes in advanced HIV disease: a randomised strategy trial.
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Ellis J, Nsangi L, Bangdiwala A, Hale G, Gakuru J, Kagimu E, Mugabi T, Kigozi E, Tukundane A, Okirwoth M, Kandole TK, Cresswel F, Harrison TS, Moore D, Fielding K, Meya D, Boulware D, and Jarvis JN
- Abstract
Background: Mortality associated with HIV-associated cryptococcal meningitis remains high even in the context of clinical trials (24-45% at 10 weeks); mortality at 12-months is up to 78% in resource limited settings. Co-prevalent tuberculosis (TB) is common and preventable, and likely contributes to poor patient outcomes. Innovative strategies to increase TB preventative therapy (TPT) provision and uptake within this high-risk group are needed., Protocol: The IMPROVE trial (Integrated management of cryptococcal meningitis and concurrent opportunistic infections to improve outcomes in advanced HIV disease) is a nested open label, two arm, randomised controlled strategy trial to evaluate the safety (adverse events) and feasibility (adherence and tolerability) of two ultra-short course TPT strategies, in the context of recent diagnosis and treatment for cryptococcal meningitis. We will enrol 205 adults with HIV-associated cryptococcal meningitis from three hospitals in Uganda. Participants will be randomised to either inpatient initiation (early) or outpatient initiation (standard, week 6) of 1HP (one month of isoniazid and rifapentine). Participant follow-up is to include TB screening, 1HP pill counts and tolerability reviews on alternate weeks until week-18. The trial primary endpoint is TB-disease free 1HP treatment completion at 18-weeks, secondary endpoints: 1HP treatment completion, 1HP discontinuation, grade ≥3 adverse events and serious adverse events, drug-induced liver injury, incident active TB, 18-week survival; rifapentine, fluconazole and dolutegravir concentrations will be measured with intensive sampling in a pharmacokinetic sub-study of 15 eligible participants., Discussion: The IMPROVE trial will provide preliminary safety and feasibility data to inform 1HP TPT strategies for adults with advanced HIV disease and cryptococcal meningitis. The potential impact of demonstrating that inpatient initiation of 1HP TPT is safe and feasible amongst this high-risk subpopulation with advanced HIV disease, would be to expand the range of clinical encounters in which clinicians can feasibly provide 1HP, and therefore increase the reach of TPT as a preventative intervention., Isrctn Registration: ISRCTN18437550 (05/11/2021)., Competing Interests: No competing interests were disclosed., (Copyright: © 2024 Ellis J et al.)
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- 2024
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40. Use of Expedited Partner Therapy for Pregnant Women Treated for Sexually Transmitted Infections in Gaborone, Botswana.
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Hansman E, Mussa A, Ryan R, Babalola CM, Ramontshonyana K, Tamuthiba L, Ndlovu N, Bame B, Klausner JD, Morroni C, and Wynn A
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- Female, Humans, Pregnancy, Botswana epidemiology, Chlamydia trachomatis, Contact Tracing, Pregnant Women, Sexual Partners, Chlamydia Infections diagnosis, Chlamydia Infections drug therapy, Chlamydia Infections epidemiology, Gonorrhea diagnosis, Gonorrhea drug therapy, Gonorrhea epidemiology, Sexually Transmitted Diseases diagnosis, Sexually Transmitted Diseases drug therapy, Sexually Transmitted Diseases epidemiology
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Background: Partner notification and treatment for sexually transmitted infections are critical to prevent reinfection and reduce transmission. However, partner treatment rates are low globally. Expedited partner therapy (EPT), in which the patient delivers treatment directly to their partner, may result in more partners treated. We assessed partner notification and treatment outcomes among pregnant women in Gaborone, Botswana, including EPT intent, uptake, and effectiveness., Methods: The Maduo study was a cluster-controlled trial evaluating the effect of antenatal Chlamydia trachomatis and Neisseria gonorrhoeae infection screening in pregnant women. The intervention arm received screening at first antenatal care (ANC), third-trimester, and postnatal care visits. The standard-of-care arm received screening postnatally. Participants screening positive were given options for partner treatment: contact slips, in-clinic treatment, or EPT. Self-reported partner notification and treatment outcomes were assessed at test-of-cure visit., Results: Of 51 women who screened positive for C. trachomatis / N. gonorrhoeae at first ANC and returned for test of cure, 100% reported notifying their partner and 48 (94.1%) reported their partner received treatment. At third trimester 100% (n = 5), reported partners were treated. Before testing, EPT intent was lower than EPT uptake at all time points (first ANC: 17.9% vs. 80.4%; third-trimester: 57.1% vs. 71.4%; postnatal care: 0% vs. 80.0%). Partner treatment success was 100% among EPT users compared with 70% among nonusers ( P = 0.006)., Conclusions: Partner notification and treatment success was high in this population. Despite low pretest intent to use EPT, uptake was high and associated with greater partner treatment success. Our findings suggest that EPT may be a successful partner treatment strategy to pursue in low- and middle-income countries., Competing Interests: Conflict of Interest and Sources of Funding: The authors have no competing interests to disclose., (Copyright © 2024 American Sexually Transmitted Diseases Association. All rights reserved.)
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- 2024
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41. Experiences, Lessons, and Challenges With Adapting REDCap for COVID-19 Laboratory Data Management in a Resource-Limited Country: Descriptive Study.
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Ndlovu K, Mauco KL, Makhura O, Hu R, Motlogelwa NP, Masizana A, Lo E, Mphoyakgosi T, and Moyo S
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Background: The COVID-19 pandemic brought challenges requiring timely health data sharing to inform accurate decision-making at national levels. In Botswana, we adapted and integrated the Research Electronic Data Capture (REDCap) and the District Health Information System version 2 (DHIS2) platforms to support timely collection and reporting of COVID-19 cases. We focused on establishing an effective COVID-19 data flow at the national public health laboratory, being guided by the needs of health care professionals at the National Health Laboratory (NHL). This integration contributed to automated centralized reporting of COVID-19 results at the Ministry of Health (MOH)., Objective: This paper reports the experiences, challenges, and lessons learned while designing, adapting, and implementing the REDCap and DHIS2 platforms to support COVID-19 data management at the NHL in Botswana., Methods: A participatory design approach was adopted to guide the design, customization, and implementation of the REDCap platform in support of COVID-19 data management at the NHL. Study participants included 29 NHL and 4 MOH personnel, and the study was conducted from March 2, 2020, to June 30, 2020. Participants' requirements for an ideal COVID-19 data management system were established. NVivo 11 software supported thematic analysis of the challenges and resolutions identified during this study. These were categorized according to the 4 themes of infrastructure, capacity development, platform constraints, and interoperability., Results: Overall, REDCap supported the majority of perceived technical and nontechnical requirements for an ideal COVID-19 data management system at the NHL. Although some implementation challenges were identified, each had mitigation strategies such as procurement of mobile Internet routers, engagement of senior management to resolve conflicting policies, continuous REDCap training, and the development of a third-party web application to enhance REDCap's capabilities. Lessons learned informed next steps and further refinement of the REDCap platform., Conclusions: Implementation of REDCap at the NHL to streamline COVID-19 data collection and integration with the DHIS2 platform was feasible despite the urgency of implementation during the pandemic. By implementing the REDCap platform at the NHL, we demonstrated the possibility of achieving a centralized reporting system of COVID-19 cases, hence enabling timely and informed decision-making at a national level. Challenges faced presented lessons learned to inform sustainable implementation of digital health innovations in Botswana and similar resource-limited countries., (©Kagiso Ndlovu, Kabelo Leonard Mauco, Onalenna Makhura, Robin Hu, Nkwebi Peace Motlogelwa, Audrey Masizana, Emily Lo, Thongbotho Mphoyakgosi, Sikhulile Moyo. Originally published in JMIR Formative Research (https://formative.jmir.org), 16.04.2024.)
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- 2024
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42. Under-representation of the WHO African region in clinical trials of interventions against hepatitis B virus infection.
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Delphin M, Mohammed KS, Downs LO, Lumley SF, Waddilove E, Okanda D, Aliyan N, Van Schalkwyk M, Anderson M, Ocama P, Maponga T, Torimiro J, Iwuji C, Ndung'u T, Matthews PC, and Taljaard J
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- Humans, Hepatitis B virus, World Health Organization, Hepatitis B, Chronic drug therapy, Hepatitis B, Chronic epidemiology, Hepatitis B drug therapy, Hepatitis B epidemiology, Hepatitis B prevention & control
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The WHO African region bears a disproportionate burden of morbidity and mortality related to chronic hepatitis B virus (HBV) infection and accounts for an estimated 70% of new HBV infections worldwide. We investigated the extent to which HBV clinical trials represented populations in this region by searching the WHO International Clinical Trials Registry Platform and ClinicalTrials.gov for interventional clinical trials published in English between database inception and May 29, 2023, using the search term "Hepatitis B". We identified 1804 unique clinical trials, of which 18 (1·0%) recorded involvement of the WHO African region. There is no evidence that the number of HBV clinical trials in this region has improved over time. The diversity of new interventions and industry sponsorship in the WHO African region were low, with trials of HBV comparing poorly with those of other endemic infectious diseases (eg, malaria, HIV, and SARS-CoV-2). HBV research and clinical trial investigations have neglected the WHO African region, leading to profound health inequities. HBV clinical trials are urgently needed to evaluate the efficacy of newly discovered therapeutics and to ensure that interventions can be equitably distributed and deployed as they become available., Competing Interests: Declaration of interests MD, EW, and PCM receive funding from The Francis Crick Institute. PCM is funded by a Wellcome fellowship (ref 110110/Z/15/Z) and the University College London National Institute for Health and Care Research Biomedical Research Centre and receives funding from GlaxoSmithKline to support a doctoral student in her team. LOD and SFL receive doctoral funding from the Wellcome Trust. CI has received research grant funding from Gilead Sciences. All other authors declare no competing interests. Editorial note: The Lancet Group takes a neutral position with respect to territorial claims in published maps, text, and institutional affiliations., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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43. Caregivers of children with HIV in Botswana prefer monthly IV Broadly Neutralizing Antibodies (bNAbs) to daily oral ART.
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Sakoi-Mosetlhi M, Ajibola G, Haghighat R, Batlang O, Maswabi K, Pretorius-Holme M, Powis KM, Lockman S, Makhema J, Litcherfeld M, Kuritzkes DR, and Shapiro R
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- Child, Female, Humans, Antibodies, Neutralizing, Botswana, Broadly Neutralizing Antibodies therapeutic use, Caregivers, HIV Antibodies therapeutic use, Mothers, HIV Infections, HIV-1
- Abstract
Introduction: Monthly intravenous infusion of broadly neutralizing monoclonal antibodies may be an attractive alternative to daily oral antiretroviral treatment for children living with HIV. However, acceptability among caregivers remains unknown., Methods: We evaluated monthly infusion of dual bNAbs (VRCO1LS and 10-1074) as a treatment alternative to ART among children participating in the Tatelo Study in Botswana. Eligible children aged 2-5 years received 8-32 weeks of bNAbs overlapping with ART, and up to 24 weeks of bNAbs alone as monthly intravenous infusion. Using closed-ended questionnaires, we evaluated caregiver acceptability of each treatment strategy prior to the first bNAb administration visit (pre-intervention) and after the completion of the final bNAb administration visit (post-intervention)., Results: Twenty-five children completed the intervention phase of the study, and acceptability data were available from 24 caregivers at both time points. Responses were provided by the child's mother at both visits (60%), an extended family member at both visits (28%), or a combination of mother and an extended family member (12%). Caregiver acceptance of monthly bNAb infusions was extremely high both pre-and post-intervention, with 21/24 (87.5%) preferring bNAbs to ART pre-intervention, and 21/25 (84%) preferring bNAbs post-intervention. While no caregiver preferred ART pre-intervention, 2/25 preferred it post-intervention. Pre-intervention, 3 (13%) caregivers had no preference between monthly bNAbs or daily ART, and 2 (8%) had no preference post-intervention. Pre-intervention, the most common reasons for preferring bNAbs over ART were the perception that bNAbs were better at suppressing the virus than ART (n = 10) and the fact that infusions were dosed once monthly compared to daily ART (n = 9). Post-intervention, no dominant reason for preferring bNAbs over ART emerged from caregivers., Conclusions: Monthly intravenous bNAb infusions were highly acceptable to caregivers of children with HIV in Botswana and preferred over standard ART by the majority of caregivers., Clinical Trial Number: NCT03707977., Competing Interests: The authors have declared that no competing interest exist., (Copyright: This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication.)
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- 2024
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44. Adverse Pregnancy Outcomes Among Women with Human Immunodeficiency Virus Taking Isoniazid Preventive Therapy During the First Trimester.
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Gupta A, Hughes MD, Cruz JL, Avihingsanon A, Mwelase N, Severe P, Omoz-Oarhe A, Masheto G, Moran L, Benson CA, Chaisson RE, and Swindells S
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- Infant, Newborn, Infant, Pregnancy, Female, Humans, Isoniazid adverse effects, Pregnancy Outcome, HIV, Pregnancy Trimester, First, Antitubercular Agents adverse effects, Tuberculosis drug therapy, Premature Birth epidemiology, HIV Infections drug therapy, HIV Infections prevention & control, HIV Infections complications, Abortion, Spontaneous epidemiology, Abortion, Spontaneous chemically induced
- Abstract
Background: Isoniazid preventive therapy (IPT) is recommended for tuberculosis prevention yet data on the safety of first-trimester pregnancy exposure are limited., Methods: Planned secondary analysis in a TB prevention trial of adverse pregnancy outcomes among participants assigned to 9-month IPT who became pregnant during (IPT-exposed) or after (unexposed) IPT. Regression models compared binary outcomes of a composite adverse outcome (any non-live birth, excluding induced abortion); preterm delivery <37 weeks; and low birth weight <2500 g) among exposure groups. Models were adjusted for latent TB infection, maternal age, CD4 count, and antiretroviral therapy (ART)., Results: In total, 128 participants had a known pregnancy outcome; 39 IPT-exposed and 89 unexposed. At pregnancy outcome, ART use was lower in IPT-exposed (79%) than unexposed women (98%). Overall, 29 pregnancies ended in a composite adverse outcome (25 spontaneous abortions, 2 stillbirths and 2 ectopic pregnancies), 15 preterm deliveries, and 10 infants with low birth weight. IPT was associated with the composite adverse outcome adjusting for covariates at enrollment (adjusted relative risk [aRR] 1.98; 95% confidence interval [CI] 1.15, 3.41), but the effect was attenuated when adjusted for covariates at pregnancy outcome (aRR 1.47; 95% CI .84, 2.55); IPT was not associated with preterm delivery (relative risk [RR] 0.87; 95% CI .32-2.42) or low birth weight (RR 1.01; 95% CI .29, 3.56)., Conclusions: First-trimester IPT exposure was associated with nearly two-fold increased risk of fetal demise, mostly spontaneous abortion, though the association was attenuated when adjusted for covariates proximal to pregnancy outcome including ART use. Further study is needed to inform TB prevention guidelines., Competing Interests: Potential conflicts of interest. A. G. reports Advisory Board roles from NIAID and Indo-US Science and Technology Forum (IUSSTF). M. H. reports institutional research and training grants related to infectious diseases from US NIH; board membership of Botswana-Harvard Partnership through employer; spouse's research grants from NIH related to infectious diseases research. C. A. B. reports institutional grant support for clinical trials from Gilead and DNAe; consulting fees (paid to author) from National Data and Analytics Platform (NDAP), Inc.; honoraria for medical education lectures and travel support (paid to author) from International Antiviral Society–United States (IAS-USA), a non-profit medical education entity; and unpaid positions as Present of the non-profit Conference on Retroviruses and Opportunistic Infections (CROI) Foundation Board, and Secretary/Treasurer of the IAS-USA Board of Directors. R. E. C. reports spouse's stock in Merck. S. S. reports institutional research support from ViiV Healthcare and participation on a Data Safety Monitoring or Advisory board for now completed NIH coronavirus disease (COVID)-related trials. All other authors report no potential conflicts. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed., (© The Author(s) 2023. Published by Oxford University Press on behalf of Infectious Diseases Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2024
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45. Effects of depot medroxyprogesterone acetate, the copper IUD and the levonorgestrel implant on testosterone, sex hormone binding globulin and free testosterone levels: ancillary study of the ECHO randomized clinical trial.
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Hofmeyr GJ, Singata-Madliki M, Batting J, Balakrishna Y, and Morroni C
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- Female, Humans, Androgens, Levonorgestrel adverse effects, Medroxyprogesterone Acetate adverse effects, Progestins, Sex Hormone-Binding Globulin, Testosterone, Adolescent, Young Adult, Adult, Acne Vulgaris chemically induced, Contraceptive Agents, Female adverse effects, Intrauterine Devices, Copper adverse effects
- Abstract
Background: Robust information on relative effects of hormonal contraceptives on endogenous androgens is important for understanding beneficial and adverse effects, method choice and development of new methods., Methods: In this ancillary study at the East London, South Africa site of the ECHO multicentre randomized trial, we compared effects of three contraceptive methods on serum androgen levels among contraceptive users aged 18 to 35 years. Participants were allocated by centrally-managed randomization to open label depot medroxyprogesterone acetate (DMPA-IM), copper intrauterine device (IUD) or levonorgestrel implant. The primary outcome was free testosterone at 6 months., Results: We analysed stored baseline and 6-month serum samples in 398/615 participants (DMPA-IM 131/205, IUD 135/205 and implant 132/205). Median testosterone levels at baseline were DMPA-IM 0.82, IUD 0.9 and implant 0.87 nmol/L; at 6 months, DMPA 0.68 (lower than IUD, mean percentage difference 28.35, (p < 0.001), IUD 0.86 (unchanged) and implant 0.66, lower than IUD, mean percentage difference - 22.98, p < 0.001). Median SHBG levels at baseline were DMPA 52.4, IUD 50.5 and implant 55.75 nmol/L; at 6 months, DMPA 40.65, lower than IUD (mean percentage difference 21.19, p = 0.005), IUD 49.1 (unchanged), and implant 23.35 nmol/L, lower than IUD (mean percentage difference - 50.04, p < 0.001 and than DMPA (mean percentage difference - 39.45, p < 0.001). Free testosterone levels at baseline were DMPA 10, IUD 12 and implant 11 pmol/L; at 6 months, DMPA 11, less than IUD (mean percentage difference 13.53, p = 0.047), IUD 12 and implant 14, higher than IUD (mean percentage difference 14.15, p = 0.038) and than DMPA, (mean percentage difference 29.60, p < 0.001)., Conclusions: This is the first randomized trial to show lower SHBG and higher free testosterone with the levonorgestrel implant than with DMPA, and contrasts with reports of increased SHBG with combined oral ethinyl estradiol/levonorgestrel use, and reduced androgens (and impaired sexual function) reported with the etonorgestrel implant. The higher free testosterone with the LNG implant might improve sexual function, mood and bone health as well as increasing side-effects such as acne and hirsutism, and is consistent with the greater sexual activity (with respect to multiple sex partners, new sex partner and unprotected sex) with the implant compared with DMPA documented in the ECHO study., Echo Trial Registration: ClinicalTrials.gov , number NCT02550067 15/09/2015. Contraception, or family planning, is central to the role of women in societies. It is most important to have accurate information on the relative side-effects of various contraceptive options in order to empower women to make informed choices regarding their preferred method. Hormonal contraceptives contain various forms of the female sex hormones, estrogens and/or progestogens. These hormones have direct effects on the users, as well as modifying the levels of the users' own circulating sex hormones, both the 'female' and the 'male' sex hormones (androgens). In this study, consenting participants requesting contraception, were allocated randomly to receive either depot medroxyprogesterone acetate (DMPA-IM) a 3-monthly progestogen injection, the copper intrauterine device (IUD), a non-hormonal contraceptive inserted within the womb, or the levonorgestrel implant, a device placed under the skin which releases a progestogen for 5 years. We measured the participants' androgen levels after 6 months, and found for the first time that the active form of testosterone (free testosterone) was 29% higher with the implant than with DMPA-IM. The level with the IUD was intermediate, and significantly different from the other two methods. This finding is relevant to the effects experienced by users of these methods, because free testosterone has effects on sexual function, bone health and mood, as well as on conditions such as acne and hair distribution patterns., (© 2024. The Author(s).)
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- 2024
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46. The diagnosis of central nervous system infections in resource-limited settings and the use of novel and molecular diagnostic platforms to improve diagnosis.
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Milburn J, Suresh R, Doyle R, and Jarvis JN
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- Humans, Pathology, Molecular, Resource-Limited Settings, Sensitivity and Specificity, Multiplex Polymerase Chain Reaction, Mycobacterium tuberculosis genetics
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Introduction: Central nervous system infections (CNSI) disproportionately affect individuals in low-resource settings where diagnosis is challenging; large proportions of patients never receive a confirmed microbiological diagnosis resulting in inadequate management and high mortality. The epidemiology of CNSI varies globally and conventional diagnostics deployed in resource-limited settings have significant limitations, with an urgent need for improved diagnostic strategies., Areas Covered: This review describes molecular platforms and other novel diagnostics used in the diagnosis of CNSI that are applicable to resource-limited settings. An extensive literature search of Medline and PubMed was performed. The emphasis is on investigations targeting infections of relevance to resource-limited settings either due to variation in regional CNSI epidemiology or due to increased prevalence in patients with immunosuppression. This includes commercially available multiplex PCR platforms, mycobacterial PCR platforms, and rapid diagnostics tests. To offer a framework for the optimal implementation in clinical settings, existing evidence highlighting the advantages and limitations of available platforms is reviewed., Expert Opinion: The implementation of molecular platforms and other novel diagnostics has the potential to transform CNSI diagnosis in resource-limited settings, with several examples of successful rollout of novel diagnostics such as Xpert MTB/RIF Ultra and cryptococcal antigen testing.
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- 2024
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47. Syphilis Prevalence Among People Living With and Without HIV in Sub-Saharan Africa: A Systematic Review and Meta-Analysis.
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Mussa A, Jarolimova J, Ryan R, Wynn A, Ashour D, Bassett IV, Philpotts LL, Freyne B, Morroni C, and Dugdale CM
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- Humans, Africa South of the Sahara epidemiology, Prevalence, Female, Male, Adult, Syphilis epidemiology, HIV Infections epidemiology, HIV Infections complications
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Background: Syphilis is a curable sexually transmitted infection that, untreated, is associated with significant morbidity and mortality. In people living with HIV (PLWH), syphilis carries greater risks of disease progression. We estimated syphilis prevalence among PLWH in the general population in sub-Saharan Africa and compared the prevalence among PLWH and without HIV., Methods: We searched for studies published January 1, 2011, to March 28, 2022, reporting syphilis prevalence among PLWH in sub-Saharan Africa (PROSPERO No. CRD42020167328). We excluded studies in high-risk subpopulations. We estimated pooled syphilis prevalence among PLWH using random-effects modeling and compared the prevalence with people without HIV when included in the same study. We examined influences of region, study setting, and test type in subgroup analyses., Results: We identified 926 studies; 53 were included in the meta-analysis. Pooled syphilis prevalence among PLWH was 7.3% (95% confidence interval [CI], 6.3%-8.5%). Prevalence differed by region: 3.1% (95% CI, 2.2%-4.0%) in Southern, 5.5% (95% CI, 2.3%-9.3%) in West/Central, and 10.5% (95% CI, 8.0%-13.1%) in Eastern Africa. Prevalence also differed by study setting: 13.8% (95% CI, 5.7%-23.0%) in sexual and reproductive health/sexually transmitted infection care, 8.7% (95% CI, 5.0%-12.8%) in HIV care, 7.1% (95% CI, 5.8%-8.5%) in antenatal care, and 3.8% (95% CI, 2.0%-5.8%) in household/community-based settings. Syphilis prevalence was higher among PLWH than without HIV (relative risk, 3.5; 95% CI, 2.8-4.5)., Conclusions: Syphilis is highly prevalent among PLWH in sub-Saharan Africa and is more common among PLWH than without HIV. Integration of syphilis screening and management into HIV care may reduce complications of HIV-syphilis coinfection among PLWH in sub-Saharan Africa., Competing Interests: Conflict of Interest and Sources of Funding: J.J. has received in-kind research support from binx health. All other authors declare no competing interests., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Sexually Transmitted Diseases Association.)
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- 2024
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48. High prevalence of pre-treatment and acquired HIV-1 drug resistance mutations among non-citizens living with HIV in Botswana.
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Mokgethi PT, Choga WT, Maruapula D, Moraka NO, Seatla KK, Bareng OT, Ditshwanelo DD, Mulenga G, Mohammed T, Kaumba PM, Chihungwa M, Marukutira T, Moyo S, Koofhethile CK, Dickinson D, Mpoloka SW, and Gaseitsiwe S
- Abstract
Background: Approximately 30,000 non-citizens are living with HIV in Botswana, all of whom as of 2020 are eligible to receive free antiretroviral treatment (ART) within the country. We assessed the prevalence of HIV-1 mutational profiles [pre-treatment drug resistance (PDR) and acquired drug resistance (ADR)] among treatment-experienced (TE) and treatment-naïve (TN) non-citizens living with HIV in Botswana., Methods: A total of 152 non-citizens living with HIV were enrolled from a migrant HIV clinic at Independence Surgery, a private practice in Botswana from 2019-2021. Viral RNA isolated from plasma samples were genotyped for HIV drug resistance (HIVDR) using Sanger sequencing. Major known HIV drug resistance mutations (DRMs) in the pol region were determined using the Stanford HIV Drug Resistance Database. The proportions of HIV DRMs amongst TE and TN non-citizens were estimated with 95% confidence intervals (95% CI) and compared between the two groups., Results: A total of 60/152 (39.5%) participants had a detectable viral load (VL) >40 copies/mL and these were included in the subsequent analyses. The median age at enrollment was 43 years (Q1, Q3: 38-48). Among individuals with VL > 40 copies/mL, 60% (36/60) were treatment-experienced with 53% (19/36) of them on Atripla. Genotyping had a 62% (37/60) success rate - 24 were TE, and 13 were TN. A total of 29 participants (78.4, 95% CI: 0.12-0.35) had major HIV DRMs, including at least one non-nucleoside reverse transcriptase inhibitor (NNRTI) associated DRM. In TE individuals, ADR to any antiretroviral drug was 83.3% (20/24), while for PDR was 69.2% (9/13). The most frequent DRMs were nucleoside reverse transcriptase inhibitors (NRTIs) M184V (62.1%, 18/29), NNRTIs V106M (41.4%, 12/29), and K103N (34.4%, 10/29). No integrase strand transfer inhibitor-associated DRMs were reported., Conclusion: We report high rates of PDR and ADR in ART-experienced and ART-naïve non-citizens, respectively, in Botswana. Given the uncertainty of time of HIV acquisition and treatment adherence levels in this population, routine HIV-1C VL monitoring coupled with HIVDR genotyping is crucial for long-term ART success., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Mokgethi, Choga, Maruapula, Moraka, Seatla, Bareng, Ditshwanelo, Mulenga, Mohammed, Kaumba, Chihungwa, Marukutira, Moyo, Koofhethile, Dickinson, Mpoloka and Gaseitsiwe.)
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- 2024
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49. Advanced HIV as a Neglected Disease.
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Ford N, Ehrenkranz P, and Jarvis J
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- Humans, HIV Infections, Neglected Diseases
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- 2024
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50. Hepatitis B surface antigen loss in individuals with chronic hepatitis B virus and HIV-1 infections in Botswana.
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Mpebe GGA, Phinius BB, Mutenga S, Baruti K, Bhebhe L, Choga WT, Jongman M, Pretorius-Holme M, Gaolathe T, Mmalane M, Shapiro R, Makhema J, Lockman S, Moyo S, Anderson M, and Gaseitsiwe S
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- Humans, Hepatitis B Surface Antigens, Hepatitis B virus genetics, Hepatitis B e Antigens, Botswana, Lamivudine, Hepatitis B Antibodies, Immunoglobulin M, DNA, Viral, Hepatitis B, Chronic, HIV-1 genetics, HIV Infections drug therapy
- Abstract
Objectives: We sought to determine hepatitis B surface antigen (HBsAg) loss and its predictors among people with chronic hepatitis B (CHB) infections and HIV (PWH) in Botswana., Methods: Archived plasma samples from a cohort of PWH in Botswana (2013-2018) with 3 yearly time-points were used. Samples were screened for HBsAg, immunoglobulin M HBV core antibodies (anti-HBc IgM) and HBV e-antigen (HBeAg) at all time points. HBV deoxyribonucleic acid (DNA) quantification was done at baseline. The Wilcoxon rank-sum was used to compare continuous variables while the chi-squared test and Fishers exact test were used for categorical data wherever appropriate. Logistic regression was used to assess predictors of seroclearance., Results: Of 141 participants with HBsAg-positive serology (HBsAg+) at baseline, 92.2% (131/141) [95% confidence interval (CI) 87.4-96.1] were persistently HBsAg+ at year 1. We report a HBsAg loss of 7.1% (10/141) (95% CI 3.9-12.6) among participants with negative HBeAg and negative IgM serologies. HBsAg loss was 6.3% (7/111) among antiretroviral therapy (ART)-experienced participants and 10.7% (3/28) (95% CI 0.4-5.0) in ART-naive participants. Most participants who had positive anti-HBc IgM serology and did not lose HBsAg were on either lamivudine (3TC)-based therapy or non-tenofovir disoproxil fumarate (TDF)-based therapy, except for one participant. The participants also had varying HBeAg status. HBsAg loss was independent of HIV viral load, CD4 + cell count, age, and sex., Conclusion: We report a HBsAg loss of 6.3% over a 3-year period among ART-experienced CHB participants. Future studies that focus on HBsAg loss in mono-infected patients and the possible correlation between HBeAg status and HBsAg loss are warranted., (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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