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10 results on '"Laffan, Michael"'

1. The effect of TRV027 on coagulation in COVID-19: A pilot randomized, placebo-controlled trial.

Author

Robbins AJ, Che Bakri NA, Toke-Bjolgerud E, Edwards A, Vikraman A, Michalsky C, Fossler M, Lemm NM, Medhipour S, Budd W, Gravani A, Hurley L, Kapil V, Jackson A, Lonsdale D, Latham V, Laffan M, Chapman N, Cooper N, Szydlo R, Boyle J, Pollock KM, and Owen D

Subjects
Humans, Bayes Theorem, Pilot Projects, Angiotensins, Double-Blind Method, Treatment Outcome, COVID-19, Blood Coagulation Disorders
Abstract

COVID-19 causes significant thrombosis and coagulopathy, with elevated D-dimer a predictor of adverse outcome. The precise mechanism of this coagulopathy remains unclear; one hypothesis is that loss of angiotensin-converting enzyme 2 activity during viral endocytosis leads to pro-inflammatory angiotensin-II accumulation, loss of angiotensin-1-7 and subsequent vascular endothelial activation. We undertook a double-blind randomized, placebo-controlled experimental medicine study to assess the effect of TRV027, a synthetic angiotensin-1-7 analogue on D-dimer in 30 patients admitted to hospital with COVID-19. The study showed a similar rate of adverse events in TRV027 and control groups. There was a numerical decrease in D-dimer in the TRV027 group and increase in D-dimer in the placebo group; however, this did not reach statistical significance (P = .15). A Bayesian analysis demonstrated that there was a 92% probability that this change represented a true drug effect., (© 2022 The Authors. British Journal of Clinical Pharmacology published by John Wiley & Sons Ltd on behalf of British Pharmacological Society.)

Published
2023
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2. Thrombosis with thrombocytopenia after AZD1222 (ChAdOx1 nCov-19) vaccination: Case characteristics and associations.

Author

Laffan MA, Rees S, Yadavalli M, Ferstenberg LB, Kumar Shankar N, Medin J, Foskett N, Arnold M, Gomes da Silva H, Bhuyan P, and Nord M

Subjects
ChAdOx1 nCoV-19, Female, Humans, Male, Middle Aged, Vaccination adverse effects, COVID-19 epidemiology, COVID-19 prevention & control, COVID-19 Vaccines adverse effects, Thrombocytopenia chemically induced, Thrombocytopenia epidemiology, Thrombosis chemically induced, Thrombosis epidemiology
Abstract

Background: Post-marketing surveillance for COVID-19 vaccines during the pandemic identified an extremely rare thrombosis with thrombocytopenia syndrome (TTS) reported post-vaccination, requiring further characterisation to improve diagnosis and management., Methods: We searched the AstraZeneca Global Safety Database (through April 26, 2021) for cases with co-reported thrombocytopenia and thrombosis (using standardised MedDRA queries/high-level terms) following AZD1222 (ChAdOx1 nCoV-19). Cases were adjudicated by experts as 'typical','possible', 'no' or 'unknown' according to available TTS criteria. Additional confirmatory datasets (May 20-June 20, October 1-December 28) were evaluated., Findings: We identified 573 reports, including 273 (47.6 %) 'typical' and 171 (29.8 %) 'possible' TTS cases. Of these 444 cases, 275 (61.9 %) were female, median age was 50.0 years (IQR: 38.0-60.0). Cerebral venous sinus thrombosis was reported in 196 (44.1 %) cases, splanchnic venous thrombosis in 65 (14.6 %) and thromboses at multiple sites in 119 (26.8 %). Median time to onset was 12.0 days (IQR: 9.0-15.0). Comparison with a pre-pandemic reference population indicated higher rates of autoimmune disorders (13.8 %, 4.4 %), previous heparin therapy (7.4 %, 1.2 %), history of thrombosis (5.5 %, 1.4 %), and immune thrombocytopenia (6.1 %, 0.2 %). Fatality rate was 22.2 % (127/573) overall and 23.6 % (105/444) in 'typical'/'possible' TTS, which decreased from 39.0 % (60/154) in February/March to 15.5 % (45/290) in April. Overall patterns were similar in confirmatory datasets., Conclusions: The reporting rate of 'typical'/'possible' TTS post first-dose vaccination in this dataset is 7.5 per million vaccinated persons; few cases were reported after subsequent doses, including booster doses. Peak reporting coincided with media-driven attention. Medical history differences versus a reference population indicate potentially unidentified risk factors. The decreasing fatality rate correlates with increasing awareness and publication of diagnostic/treatment guidelines. Adjudication was hindered by unreported parameters, and an algorithm was developed to classify potential TTS cases; comprehensive reporting could help further improve definition and management of this extremely rare syndrome., Competing Interests: Declaration of Competing Interest MAL declares consultancy work for AstraZeneca in relation to AZD1222, including for the present analyses. SR is a previous employee of AstraZeneca (2006–2010) and declares consultancy work for AstraZeneca in relation to the present analyses. MY, LBF, NKS, JM, NF, MA, HGdS, PB and MN are employees of AstraZeneca and may hold stock and/or stock options. MN participates on a Data Safety Monitoring Board or Advisory Board at the Karolinska Institute., (Copyright © 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Published
2022
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3. Clinical outcomes and the impact of prior oral anticoagulant use in patients with coronavirus disease 2019 admitted to hospitals in the UK - a multicentre observational study.

Author

Arachchillage DJ, Rajakaruna I, Odho Z, Crossette-Thambiah C, Nicolson PLR, Roberts LN, Allan C, Lewis S, Riat R, Mounter P, Lynch C, Langridge A, Oakes R, Aung N, Drebes A, Dutt T, Raheja P, Delaney A, Essex S, Lowe G, Sutton D, Lentaigne C, Sayar Z, Kilner M, Everington T, Shapiro S, Alikhan R, Szydlo R, Makris M, and Laffan M

Subjects
Administration, Oral, Adult, Aged, Aged, 80 and over, Anticoagulants adverse effects, COVID-19 diagnosis, COVID-19 epidemiology, COVID-19 therapy, Female, Hemorrhage chemically induced, Hospitalization, Humans, Intensive Care Units, Male, Middle Aged, SARS-CoV-2 isolation & purification, Severity of Illness Index, Thrombosis epidemiology, United Kingdom epidemiology, Anticoagulants therapeutic use, COVID-19 complications, Thrombosis complications, Thrombosis drug therapy
Abstract

Coagulation dysfunction and thrombosis are major complications in patients with coronavirus disease 2019 (COVID-19). Patients on oral anticoagulants (OAC) prior to diagnosis of COVID-19 may therefore have better outcomes. In this multicentre observational study of 5 883 patients (≥18 years) admitted to 26 UK hospitals between 1 April 2020 and 31 July 2020, overall mortality was 29·2%. Incidences of thrombosis, major bleeding (MB) and multiorgan failure (MOF) were 5·4%, 1·7% and 3·3% respectively. The presence of thrombosis, MB, or MOF was associated with a 1·8, 4·5 or 5·9-fold increased risk of dying, respectively. Of the 5 883 patients studied, 83·6% (n = 4 920) were not on OAC and 16·4% (n = 963) were taking OAC at the time of admission. There was no difference in mortality between patients on OAC vs no OAC prior to admission when compared in an adjusted multivariate analysis [hazard ratio (HR) 1·05, 95% confidence interval (CI) 0·93-1·19; P = 0·15] or in an adjusted propensity score analysis (HR 0·92 95% CI 0·58-1·450; P = 0·18). In multivariate and adjusted propensity score analyses, the only significant association of no anticoagulation prior to diagnosis of COVID-19 was admission to the Intensive-Care Unit (ICU) (HR 1·98, 95% CI 1·37-2·85). Thrombosis, MB, and MOF were associated with higher mortality. Our results indicate that patients may have benefit from prior OAC use, especially reduced admission to ICU, without any increase in bleeding., (© 2021 British Society for Haematology and John Wiley & Sons Ltd.)

Published
2022
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4. Recombinant ADAMTS13 reduces abnormally up-regulated von Willebrand factor in plasma from patients with severe COVID-19.

Author

Turecek PL, Peck RC, Rangarajan S, Reilly-Stitt C, Laffan MA, Kazmi R, James I, Dushianthan A, Schrenk G, Gritsch H, Ewenstein BM, Mellgard B, Erdlenbruch W, Jain N, Binder NB, and Mumford AD

Subjects
ADAMTS13 Protein, Cross-Sectional Studies, Humans, SARS-CoV-2, von Willebrand Factor, COVID-19, Recombinant Proteins therapeutic use, Thrombosis
Abstract

Thrombosis affecting the pulmonary and systemic vasculature is common during severe COVID-19 and causes adverse outcomes. Although thrombosis likely results from inflammatory activation of vascular cells, the mediators of thrombosis remain unconfirmed. In a cross-sectional cohort of 36 severe COVID-19 patients, we show that markedly increased plasma von Willebrand factor (VWF) levels were accompanied by a partial reduction in the VWF regulatory protease ADAMTS13. In all patients we find this VWF/ADAMTS13 imbalance to be associated with persistence of ultra-high-molecular-weight (UHMW) VWF multimers that are highly thrombogenic in some disease settings. Incubation of plasma samples from patients with severe COVID-19 with recombinant ADAMTS13 (rADAMTS13) substantially reduced the abnormally high VWF activity, reduced overall multimer size and depleted UHMW VWF multimers in a time and concentration dependent manner. Our data implicate disruption of normal VWF/ADAMTS13 homeostasis in the pathogenesis of severe COVID-19 and indicate that this can be reversed ex vivo by correction of low plasma ADAMTS13 levels. These findings suggest a potential therapeutic role for rADAMTS13 in helping restore haemostatic balance in COVID-19 patients., (Copyright © 2021 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Published
2021
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5. COVID-19 related concerns of people with long-term respiratory conditions: a qualitative study.

Author

Philip KEJ, Lonergan B, Cumella A, Farrington-Douglas J, Laffan M, and Hopkinson NS

Subjects
Attitude to Health, Communicable Disease Control methods, Comorbidity, Female, Humans, Male, Mental Health, Middle Aged, Qualitative Research, SARS-CoV-2, United Kingdom epidemiology, COVID-19 epidemiology, COVID-19 prevention & control, COVID-19 psychology, Disease Transmission, Infectious prevention & control, Psychological Distress, Respiratory Tract Diseases classification, Respiratory Tract Diseases epidemiology, Respiratory Tract Diseases psychology, Social Perception, Uncertainty, Vulnerable Populations psychology, Vulnerable Populations statistics & numerical data
Abstract

Background: The COVID-19 pandemic is having profound psychological impacts on populations globally, with increasing levels of stress, anxiety, and depression being reported, especially in people with pre-existing medical conditions who appear to be particularly vulnerable. There are limited data on the specific concerns people have about COVID-19 and what these are based on., Methods: The aim of this study was to identify and explore the concerns of people with long-term respiratory conditions in the UK regarding the impact of the COVID-19 pandemic and how these concerns were affecting them. We conducted a thematic analysis of free text responses to the question "What are your main concerns about getting coronavirus?", which was included in the British Lung Foundation/Asthma UK (BLF-AUK) partnership COVID-19 survey, conducted between the 1st and 8th of April 2020. This was during the 3rd week of the UK's initial 'social distancing measures' which included advice to stay at home and only go outside for specific limited reasons., Results: 7039 responses were analysed, with respondents from a wide range of age groups (under 17 to over 80), gender, and all UK nations. Respondents reported having asthma (85%), COPD (9%), bronchiectasis (4%), interstitial lung disease (2%), or 'other' lung diseases (e.g. lung cancer) (1%). Four main themes were identified: (1) vulnerability to COVID-19; (2) anticipated experience of contracting COVID-19; (3) pervasive uncertainty; and (4) inadequate national response., Conclusions: The COVID-19 pandemic is having profound psychological impacts. The concerns we identified largely reflect contextual factors, as well as their subjective experience of the current situation. Hence, key approaches to reducing these concerns require changes to the reality of their situation, and are likely to include (1) helping people optimise their health, limit risk of infection, and access necessities; (2) minimising the negative experience of disease where possible, (3) providing up-to-date, accurate and consistent information, (4) improving the government and healthcare response.

Published
2020
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6. Therapeutic Anticoagulation with Heparin in Critically Ill Patients with Covid-19

Author

Goligher, Ewan C, Bradbury, Charlotte A, McVerry, Bryan J, Lawler, Patrick R, Berger, Jeffrey S, Gong, Michelle N, Carrier, Marc, Reynolds, Harmony R, Kumar, Anand, Turgeon, Alexis F, Kornblith, Lucy Z, Kahn, Susan R, Marshall, John C, Kim, Keri S, Houston, Brett L, Derde, Lennie PG, Cushman, Mary, Tritschler, Tobias, Angus, Derek C, Godoy, Lucas C, McQuilten, Zoe, Kirwan, Bridget-Anne, Farkouh, Michael E, Brooks, Maria M, Lewis, Roger J, Berry, Lindsay R, Lorenzi, Elizabeth, Gordon, Anthony C, Ahuja, Tania, Al-Beidh, Farah, Annane, Djillali, Arabi, Yaseen M, Aryal, Diptesh, Baumann Kreuziger, Lisa, Beane, Abi, Bhimani, Zahra, Bihari, Shailesh, Billett, Henny H, Bond, Lindsay, Bonten, Marc, Brunkhorst, Frank, Buxton, Meredith, Buzgau, Adrian, Castellucci, Lana A, Chekuri, Sweta, Chen, Jen-Ting, Cheng, Allen C, Chkhikvadze, Tamta, Coiffard, Benjamin, Contreras, Aira, Costantini, Todd W, de Brouwer, Sophie, Detry, Michelle A, Duggal, Abhijit, Džavík, Vladimír, Effron, Mark B, Eng, Heather F, Escobedo, Jorge, Estcourt, Lise J, Everett, Brendan M, Fergusson, Dean A, Fitzgerald, Mark, Fowler, Robert A, Froess, Joshua D, Fu, Zhuxuan, Galanaud, Jean P, Galen, Benjamin T, Gandotra, Sheetal, Girard, Timothy D, Goodman, Andrew L, Goossens, Herman, Green, Cameron, Greenstein, Yonatan Y, Gross, Peter L, Haniffa, Rashan, Hegde, Sheila M, Hendrickson, Carolyn M, Higgins, Alisa M, Hindenburg, Alexander A, Hope, Aluko A, Horowitz, James M, Horvat, Christopher M, Huang, David T, Hudock, Kristin, Hunt, Beverley J, Husain, Mansoor, Hyzy, Robert C, Jacobson, Jeffrey R, Jayakumar, Devachandran, Keller, Norma M, Khan, Akram, Kim, Yuri, Kindzelski, Andrei, King, Andrew J, Knudson, M Margaret, Kornblith, Aaron E, Kutcher, Matthew E, Laffan, Michael A, Lamontagne, Francois, and Le Gal, Grégoire

Subjects
Clinical Trials and Supportive Activities, Clinical Research, Comparative Effectiveness Research, Cardiovascular, Good Health and Well Being, Aged, Anticoagulants, COVID-19, Critical Illness, Female, Hemorrhage, Heparin, Hospital Mortality, Humans, Logistic Models, Male, Middle Aged, Odds Ratio, Respiration, Artificial, Thrombosis, Treatment Failure, COVID-19 Drug Treatment, REMAP-CAP Investigators, ACTIV-4a Investigators, ATTACC Investigators, Medical and Health Sciences, General & Internal Medicine
Abstract

BackgroundThrombosis and inflammation may contribute to morbidity and mortality among patients with coronavirus disease 2019 (Covid-19). We hypothesized that therapeutic-dose anticoagulation would improve outcomes in critically ill patients with Covid-19.MethodsIn an open-label, adaptive, multiplatform, randomized clinical trial, critically ill patients with severe Covid-19 were randomly assigned to a pragmatically defined regimen of either therapeutic-dose anticoagulation with heparin or pharmacologic thromboprophylaxis in accordance with local usual care. The primary outcome was organ support-free days, evaluated on an ordinal scale that combined in-hospital death (assigned a value of -1) and the number of days free of cardiovascular or respiratory organ support up to day 21 among patients who survived to hospital discharge.ResultsThe trial was stopped when the prespecified criterion for futility was met for therapeutic-dose anticoagulation. Data on the primary outcome were available for 1098 patients (534 assigned to therapeutic-dose anticoagulation and 564 assigned to usual-care thromboprophylaxis). The median value for organ support-free days was 1 (interquartile range, -1 to 16) among the patients assigned to therapeutic-dose anticoagulation and was 4 (interquartile range, -1 to 16) among the patients assigned to usual-care thromboprophylaxis (adjusted proportional odds ratio, 0.83; 95% credible interval, 0.67 to 1.03; posterior probability of futility [defined as an odds ratio

Published
2021

7. Therapeutic Anticoagulation with Heparin in Critically Ill Patients with Covid-19

Author

REMAP-CAP Investigators, ACTIV-4a Investigators, ATTACC Investigators, Goligher, Ewan C, Bradbury, Charlotte A, McVerry, Bryan J, Lawler, Patrick R, Berger, Jeffrey S, Gong, Michelle N, Carrier, Marc, Reynolds, Harmony R, Kumar, Anand, Turgeon, Alexis F, Kornblith, Lucy Z, Kahn, Susan R, Marshall, John C, Kim, Keri S, Houston, Brett L, Derde, Lennie PG, Cushman, Mary, Tritschler, Tobias, Angus, Derek C, Godoy, Lucas C, McQuilten, Zoe, Kirwan, Bridget-Anne, Farkouh, Michael E, Brooks, Maria M, Lewis, Roger J, Berry, Lindsay R, Lorenzi, Elizabeth, Gordon, Anthony C, Ahuja, Tania, Al-Beidh, Farah, Annane, Djillali, Arabi, Yaseen M, Aryal, Diptesh, Baumann Kreuziger, Lisa, Beane, Abi, Bhimani, Zahra, Bihari, Shailesh, Billett, Henny H, Bond, Lindsay, Bonten, Marc, Brunkhorst, Frank, Buxton, Meredith, Buzgau, Adrian, Castellucci, Lana A, Chekuri, Sweta, Chen, Jen-Ting, Cheng, Allen C, Chkhikvadze, Tamta, Coiffard, Benjamin, Contreras, Aira, Costantini, Todd W, de Brouwer, Sophie, Detry, Michelle A, Duggal, Abhijit, Džavík, Vladimír, Effron, Mark B, Eng, Heather F, Escobedo, Jorge, Estcourt, Lise J, Everett, Brendan M, Fergusson, Dean A, Fitzgerald, Mark, Fowler, Robert A, Froess, Joshua D, Fu, Zhuxuan, Galanaud, Jean P, Galen, Benjamin T, Gandotra, Sheetal, Girard, Timothy D, Goodman, Andrew L, Goossens, Herman, Green, Cameron, Greenstein, Yonatan Y, Gross, Peter L, Haniffa, Rashan, Hegde, Sheila M, Hendrickson, Carolyn M, Higgins, Alisa M, Hindenburg, Alexander A, Hope, Aluko A, Horowitz, James M, Horvat, Christopher M, Huang, David T, Hudock, Kristin, Hunt, Beverley J, Husain, Mansoor, Hyzy, Robert C, Jacobson, Jeffrey R, Jayakumar, Devachandran, Keller, Norma M, Khan, Akram, Kim, Yuri, Kindzelski, Andrei, King, Andrew J, Knudson, M Margaret, Kornblith, Aaron E, Kutcher, Matthew E, Laffan, Michael A, Lamontagne, Francois, Le Gal, Grégoire, Leeper, Christine M, Leifer, Eric S, Lim, George, Gallego Lima, Felipe, Linstrum, Kelsey, Litton, Edward, Lopez-Sendon, Jose, Lother, Sylvain A, Marten, Nicole, Saud Marinez, Andréa, Martinez, Mary, Mateos Garcia, Eduardo, Mavromichalis, Stavroula, McAuley, Daniel F, McDonald, Emily G, McGlothlin, Anna, McGuinness, Shay P, Middeldorp, Saskia, Montgomery, Stephanie K, Mouncey, Paul R, Murthy, Srinivas, Nair, Girish B, Nair, Rahul, Nichol, Alistair D, Nicolau, Jose C, Nunez-Garcia, Brenda, Park, John J, Park, Pauline K, Parke, Rachael L, Parker, Jane C, Parnia, Sam, Paul, Jonathan D, Pompilio, Mauricio, Quigley, John G, Rosenson, Robert S, Rost, Natalia S, Rowan, Kathryn, Santos, Fernanda O, Santos, Marlene, Santos, Mayler O, Satterwhite, Lewis, Saunders, Christina T, Schreiber, Jake, Schutgens, Roger EG, Seymour, Christopher W, Siegal, Deborah M, Silva, Delcio G, Singhal, Aneesh B, Slutsky, Arthur S, Solvason, Dayna, Stanworth, Simon J, Turner, Anne M, van Bentum-Puijk, Wilma, van de Veerdonk, Frank L, van Diepen, Sean, Vazquez-Grande, Gloria, Wahid, Lana, Wareham, Vanessa, Widmer, R Jay, Wilson, Jennifer G, Yuriditsky, Eugene, Zhong, Yongqi, Berry, Scott M, McArthur, Colin J, Neal, Matthew D, Hochman, Judith S, Webb, Steven A, Zarychanski, Ryan, Bradbury, Charlotte A [0000-0001-5248-8165], McVerry, Bryan J [0000-0002-1175-4874], Lawler, Patrick R [0000-0001-5155-5071], Carrier, Marc [0000-0001-8296-2972], Kim, Keri S [0000-0002-8480-4801], Houston, Brett L [0000-0002-8776-4083], Cushman, Mary [0000-0002-7871-6143], Tritschler, Tobias [0000-0002-8775-0511], Godoy, Lucas C [0000-0001-6171-1269], Gordon, Anthony C [0000-0002-0419-547X], Ahuja, Tania [0000-0003-1833-4124], Aryal, Diptesh [0000-0002-1431-8293], Baumann Kreuziger, Lisa [0000-0002-1171-0548], Beane, Abi [0000-0001-7046-1580], Coiffard, Benjamin [0000-0002-8896-5346], Detry, Michelle A [0000-0002-2794-1439], Escobedo, Jorge [0000-0003-1942-7402], Estcourt, Lise J [0000-0003-4309-9162], Everett, Brendan M [0000-0002-6331-5224], Fu, Zhuxuan [0000-0002-9190-195X], Galen, Benjamin T [0000-0001-8172-258X], Girard, Timothy D [0000-0002-9833-4871], Greenstein, Yonatan Y [0000-0002-5718-4408], Haniffa, Rashan [0000-0002-8288-449X], Hegde, Sheila M [0000-0001-8157-8899], Hendrickson, Carolyn M [0000-0003-4662-2385], Higgins, Alisa M [0000-0001-8295-7559], Hindenburg, Alexander A [0000-0002-1232-2168], Horvat, Christopher M [0000-0002-1593-2252], Huang, David T [0000-0001-7649-1633], Jacobson, Jeffrey R [0000-0001-8929-994X], Kim, Yuri [0000-0001-5978-5779], King, Andrew J [0000-0002-9809-0563], Kutcher, Matthew E [0000-0003-4566-5359], Leifer, Eric S [0000-0001-6888-8307], Litton, Edward [0000-0002-5125-6829], Mateos Garcia, Eduardo [0000-0002-0904-4056], Mouncey, Paul R [0000-0002-8510-8517], Nunez-Garcia, Brenda [0000-0002-0355-4557], Parnia, Sam [0000-0002-6158-4404], Quigley, John G [0000-0003-3116-4545], Saunders, Christina T [0000-0003-4325-9568], Yuriditsky, Eugene [0000-0003-2263-9297], Zhong, Yongqi [0000-0002-4042-7450], Neal, Matthew D [0000-0001-8931-6236], and Apollo - University of Cambridge Repository

Subjects
Male, Heparin, Critical Illness, Anticoagulants, COVID-19, Hemorrhage, Thrombosis, Middle Aged, Respiration, Artificial, COVID-19 Drug Treatment, Logistic Models, Odds Ratio, Humans, Female, Hospital Mortality, Treatment Failure, Aged
Abstract

BACKGROUND: Thrombosis and inflammation may contribute to morbidity and mortality among patients with coronavirus disease 2019 (Covid-19). We hypothesized that therapeutic-dose anticoagulation would improve outcomes in critically ill patients with Covid-19. METHODS: In an open-label, adaptive, multiplatform, randomized clinical trial, critically ill patients with severe Covid-19 were randomly assigned to a pragmatically defined regimen of either therapeutic-dose anticoagulation with heparin or pharmacologic thromboprophylaxis in accordance with local usual care. The primary outcome was organ support-free days, evaluated on an ordinal scale that combined in-hospital death (assigned a value of -1) and the number of days free of cardiovascular or respiratory organ support up to day 21 among patients who survived to hospital discharge. RESULTS: The trial was stopped when the prespecified criterion for futility was met for therapeutic-dose anticoagulation. Data on the primary outcome were available for 1098 patients (534 assigned to therapeutic-dose anticoagulation and 564 assigned to usual-care thromboprophylaxis). The median value for organ support-free days was 1 (interquartile range, -1 to 16) among the patients assigned to therapeutic-dose anticoagulation and was 4 (interquartile range, -1 to 16) among the patients assigned to usual-care thromboprophylaxis (adjusted proportional odds ratio, 0.83; 95% credible interval, 0.67 to 1.03; posterior probability of futility [defined as an odds ratio

Published
2021

8. Therapeutic Anticoagulation with Heparin in Noncritically Ill Patients with Covid-19

Author

Lawler, Patrick R, Golighe, Ewan C, Berge, Jeffrey S, Neal, Matthew D, McVerry, Bryan J, Nicolau, Jose C, Gong, Michelle N, Carrier, Marc, Rosenson, Robert S, Reynolds, Harmony R, Turgeon, Alexis F, Escobedo, Jorge, Huang, David T, Bradbury, Charlotte A, Houston, Brett L, Kornblith, Lucy Z, Kumar, Anand, Kah, Susan RN, Cushman, Mary, McQuilten, Zoe, Slutsky, Arthur S, Kim, Keri S, Gordon, Anthony C, Kirwan, Bridget-Anne, Brooks, Maria M, Higgins, Alisa M, Lewis, Roger J, Lorenzi, Elizabeth, Berry, Scott M, Berry, Lindsay R, Angus, Derek C, McArthur, Colin J, Webb, Steven A, Farkouh, Michael E, Hochman, Judith S, Zarychanski, Ryan, Aday, Aaron W, Al-Beidh, Farah, Annane, Djillali, Arabi, Yaseen M, Aryal, Diptesh, Kreuziger, Lisa Baumann, Beane, Abi, Bhimani, Zahra, Bihari, Shailesh, Billett, Henny H, Bond, Lindsay, Bonten, Marc, Brunkhorst, Frank, Buxton, Meredith, Buzgau, Adrian, Castellucci, Lana A, Chekuri, Sweta, Chen, Jen-Ting, Cheng, Allen C, Chkhikvadzw, Tamta, Coiffard, Benjamin, Costantini, Todd W, de Brouwer, Sophie, Derde, Lennie PG, Detry, Michelle A, Duggal, Abhijit, Dzavik, Vladimir, Effron, Mark B, Estcourt, Lise J, Everett, Brendan M, Fergusson, Dean A, Fitzgerald, Mark, Fowler, Robert A, Galanaud, Jean P, Galen, Benjamin T, Gandotra, Sheetal, Garcia-Madrona, Sebastian, Girard, Timothy D, Godoy, Lucas C, Goodman, Andrew L, Goossens, Herman, Green, Cameron, Greenstein, Yonatan Y, Gross, Peter L, Hamburg, Naomi M, Haniffa, Rashan, Hanna, George, Hanna, Nicholas, Hegde, Sheila M, Hendrickson, Carolyn M, Hite, R Duncan, Hindenburg, Alexander A, Hope, Aluko A, Horowitz, James M, Horvat, Christopher M, Hudock, Kristin, Hunt, Beverley J, Husain, Mansoor, Hyzy, Robert C, Iyer, Vivek N, Jacobson, Jeffrey R, Jayakumar, Devachandran, Keller, Norma M, Khan, Akram, Kim, Yuri, Kindzelski, Andrei L, Kin, Andrew J, Knudson, M Margaret, Kornblith, Aaron E, Krishnan, Vidya, Kutcher, Matthew E, Laffan, Michael A, Lamontagne, Francois, Le Gal, Gregoire, Leeper, Christine M, Leifer, Eric S, Lim, George, Lima, Felipe Gallego, Linstrum, Kelsey, Litton, Edward, Lopez-Sendon, Jose, Moreno, Jose L Lopez-Sendon, Lother, Sylvain A, Malhotra, Saurabh, Marcos, Miguel, Marinez, Andrea Saud, Marshall, John C, Marten, Nicole, Matthay, Michael A, McAuley, Daniel F, McDonald, Emily G, McGlothlin, Anna, McGuinness, Shay P, Middeldorp, Saskia, Montgomery, Stephanie K, Moore, Steven C, Guerreor, Raquel Morillo, Mouncey, Paul R, Murthy, Srinivas, Nair, Girish B, Nair, Rahul, Nichol, Alistair D, Nunez-Garcia, Brenda, Pandey, Ambarish, Park, Pauline K, Parke, Rachael L, Parker, Jane C, Parnia, Sam, Paul, Jonathan D, Gonzalez, Yessica S Perez, Pompilio, Mauricio, Prekker, Matthew E, Quigley, John G, Rost, Natalia S, Rowan, Kathryn, Santos, Fernanda O, Santos, Marlene, Santos, Mayler Olombrada, Satterwhite, Lewis, Saunders, Christina T, Schutgens, Roger EG, Seymour, Christopher W, Siegal, Deborah M, Jr, Silva Delcio G, Shankar-Hari, Manu, Sheehan, John P, Singhal, Aneesh B, Solvaso, Dayna, Stanworth, Simon J, Tritschler, Tobias, Turner, Anne M, Van Bentum-Puijk, Wilma, van de Veerdonk, Frank L, van Diepen, Sean, Vazquez-Grande, Gloria, Wahid, Lana, Wareham, Vanessa, Wells, Bryan J, Widmer, R Jay, Wilson, Jennifer G, Yuriditsky, Eugene, Zampieri, Fernando G, Investigators, ATTACC, Investigators, ACTIV-4a, Investigators, REMAP-CAP, Investigators, ATTACC, Investigators, ACTIV-4a, Investigators, REMAP-CAP, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), 215522, AR7-162822, CS-2016-16-011, RP-2015-06-18, National Institutes of Health, NIH: 1OT2HL156812-01, OTA-20-011, UL1TR001445, National Heart, Lung, and Blood Institute, NHLBI, Breast Cancer Research Foundation, BCRF, National Center for Advancing Translational Sciences, NCATS, New York University, NYU, Medical Center, University of Pittsburgh, CancerCare Manitoba Foundation, CCMF, University of Manitoba, UM, Health Research Board, HRB: CTN 2014-012, Canadian Institutes of Health Research, CIHR, National Institute for Health Research, NIHR, European Commission, EC: 602525, FP7-HEALTH-2013-INNOVATION, National Health and Medical Research Council, NHMRC: APP1101719, APP1116530, Health Research Council of New Zealand, HRC: 158584, 16/631, 447335, Canada Research Chairs, Eisai, Ministère des Affaires Sociales et de la Santé: PHRC-20-0147, Horizon 2020: 101003589, NIHR Imperial Biomedical Research Centre, BRC, Minderoo Foundation, The ATTACC platform was supported by grants from the Canadian Institutes of Health Research, LifeArc Foundation, Thistledown Foundation, Research Manitoba, Ontario Ministry of Health, Peter Munk Cardiac Centre, CancerCare Manitoba Foundation, and Victoria General Hospital Foundation. The ACTIV-4a platform was sponsored by the National Heart, Lung, and Blood Institute, National Institutes of Health (NIH) (grant numbers, OTA-20-011 and 1OT2HL156812-01). The pilot program (PROTECT) was funded in part by a grant (UL1TR001445) from the New York University Clinical and Translational Science Award program, supported by the National Center for Advancing Translational Sciences of the NIH. The REMAP-CAP platform was supported by the European Union through FP7-HEALTH-2013-INNOVATION: the Platform for European Preparedness Against (Re-)emerging Epidemics (PREPARE) consortium (602525) and the Horizon 2020 research and innovation program: the Rapid European Covid-19 Emergency Research response (RECOVER) consortium (101003589), by the Australian National Health and Medical Research Council (APP1101719 and APP1116530), the Health Research Council of New Zealand (16/631), the Canadian Institutes of Health Research (Strategy for Patient-Oriented Research Innovative Clinical Trials Program Grant [158584] and Covid-19 Rapid Research Operating Grant [447335]), the U.K. National Institute for Health Research (NIHR) and the NIHR Imperial Biomedical Research Centre, the Health Research Board of Ireland (CTN 2014-012), the Learning While Doing Program at the University of Pittsburgh Medical Center, the Breast Cancer Research Foundation, the French Ministry of Health (PHRC-20-0147), the Minderoo Foundation, Am-gen, Eisai, the Global Coalition for Adaptive Research, and the Wellcome Trust Innovations Project (215522). Dr. Goligher is the recipient of an Early Career Investigator award from the Canadian Institutes of Health Research (grant AR7-162822). Dr. Gordon is supported by an NIHR Research Professorship (RP-2015-06-18), Dr. Shankar-Hari by an NIHR Clinician Scientist Fellowship (CS-2016-16-011), and Dr. Turgeon by a Canada Research Chair (Tier 2). Dr. Zarychanski is the recipient of the Lyonel G. Israels Research Chair in Hematology (University of Manitoba)., Listed are data that were included in the analysis involving patients with moderate severity of coronavirus disease 2019 (Covid-19). The denominators of patients in the anticoagulation group and the thrombophylaxis group are un-equal owing to response-adaptive randomization. The baseline characteristics of the patients according to d-dimer level are provided in Table S2 in the Supplementary Appendix. To convert the values for creatinine to micromoles per liter, multiply by 88.4. ULN denotes upper limit of the normal range. † Race or ethnic group was reported by the patients. ‡ The body-mass index is the weight in kilograms divided by the square of the height in meters. § Severe cardiovascular disease was defined as a baseline history of heart failure, myocardial infarction, coronary artery disease, peripheral arterial disease, or cerebrovascular disease (stroke or transient ischemic attack) in the ATTACC (Antithrombotic Therapy to Ameliorate Complications of Covid-19) and ACTIV-4a (A Multicenter, Adaptive, Ran-domized Controlled Platform Trial of the Safety and Efficacy of Antithrombotic Strategies in Hospitalized Adults with COVID-19) platforms and as a baseline history of New York Heart Association class IV symptoms in the REMAP-CAP platform (Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community-Acquired Pneumonia). ¶ Chronic respiratory disease was defined as a baseline history of asthma, chronic obstructive pulmonary disease, bron-chiectasis, interstitial lung disease, primary lung cancer, pulmonary hypertension, active tuberculosis, or the receipt of home oxygen therapy. ‖ Not listed are 74 patients who were coenrolled in the REMAP-CAP Antiplatelet Domain (39 in the anticoagulation group and 35 in the thromboprophylaxis group). ** In REMAP-CAP, levels of oxygen support (including no support) below the level of high-flow nasal cannula were not reported. †† The relative proportion of patients who were randomly assigned in each platform was imbalanced owing to imple-mentation of response-adaptive randomization in ATTACC on December 15, 2020. ‡‡ A total of 215 patients who were enrolled in the ATTACC platform were funded by the ACTIV4a platform by the National Heart, Lung, and Blood Institute. §§ Other participating countries were Mexico, Nepal, Australia, the Netherlands, and Spain., ATTACC Investigators, ACTIV-4a Investigators, REMAP-CAP Investigators, Vascular Medicine, ACS - Pulmonary hypertension & thrombosis, Lawler, Patrick R [0000-0001-5155-5071], Neal, Matthew D [0000-0001-8931-6236], McVerry, Bryan J [0000-0002-1175-4874], Carrier, Marc [0000-0001-8296-2972], Escobedo, Jorge [0000-0003-1942-7402], Huang, David T [0000-0001-7649-1633], Bradbury, Charlotte A [0000-0001-5248-8165], Houston, Brett L [0000-0002-8776-4083], Kornblith, Lucy Z [0000-0002-1861-9691], Kim, Keri S [0000-0002-8480-4801], Gordon, Anthony C [0000-0002-0419-547X], Higgins, Alisa M [0000-0001-8295-7559], Aday, Aaron W [0000-0001-6243-3432], Aryal, Diptesh [0000-0002-1431-8293], Baumann Kreuziger, Lisa [0000-0002-1171-0548], Beane, Abi [0000-0001-7046-1580], Coiffard, Benjamin [0000-0002-8896-5346], Derde, Lennie PG [0000-0002-3577-5629], Detry, Michelle A [0000-0002-2794-1439], Estcourt, Lise J [0000-0003-4309-9162], Everett, Brendan M [0000-0002-6331-5224], Galen, Benjamin T [0000-0001-8172-258X], Girard, Timothy D [0000-0002-9833-4871], Godoy, Lucas C [0000-0001-6171-1269], Greenstein, Yonatan Y [0000-0002-5718-4408], Haniffa, Rashan [0000-0002-8288-449X], Hanna, George [0000-0001-8737-3843], Hegde, Sheila M [0000-0001-8157-8899], Hendrickson, Carolyn M [0000-0003-4662-2385], Hite, R Duncan [0000-0002-2625-8750], Hindenburg, Alexander A [0000-0002-1232-2168], Horvat, Christopher M [0000-0002-1593-2252], Jacobson, Jeffrey R [0000-0001-8929-994X], Kim, Yuri [0000-0001-5978-5779], King, Andrew J [0000-0002-9809-0563], Kutcher, Matthew E [0000-0003-4566-5359], Lima, Felipe Gallego [0000-0003-1204-5743], Lopez-Sendon Moreno, Jose L [0000-0001-9414-3990], Marcos, Miguel [0000-0003-1269-4487], McGlothlin, Anna [0000-0002-9079-6166], Mouncey, Paul R [0000-0002-8510-8517], Nunez-Garcia, Brenda [0000-0002-0355-4557], Parnia, Sam [0000-0002-6158-4404], Quigley, John G [0000-0003-3116-4545], Saunders, Christina T [0000-0003-4325-9568], Shankar-Hari, Manu [0000-0002-5338-2538], Sheehan, John P [0000-0002-4328-2613], Tritschler, Tobias [0000-0002-8775-0511], Yuriditsky, Eugene [0000-0003-2263-9297], Zampieri, Fernando G [0000-0001-9315-6386], Angus, Derek C [0000-0002-7026-5181], Apollo - University of Cambridge Repository, NIHR, and National Institute for Health Research

Subjects
Male, covid-19, anticoagulation, [SDV]Life Sciences [q-bio], lnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4], 030204 cardiovascular system & hematology, heparin, law.invention, 0302 clinical medicine, Randomized controlled trial, law, Hemorrhage/chemically induced, 030212 general & internal medicine, Hospital Mortality, Heparin/administration & dosage, anticoagulation, 11 Medical and Health Sciences, Anticoagulants/administration & dosage, Thrombosis/prevention & control, low molecular weight heparin, General Medicine, Heparin, Middle Aged, Thrombosis, Patient Discharge, 3. Good health, Coagulation, Original Article, Female, ATTACC Investigators, medicine.symptom, Covid-19, Life Sciences & Biomedicine, medicine.drug, Adult, medicine.medical_specialty, medicine.drug_class, adaptive platform trial, Low molecular weight heparin, Inflammation, Hemorrhage, COVID-19/drug therapy, 03 medical and health sciences, Medicine, General & Internal, General & Internal Medicine, medicine, Humans, Intensive care medicine, Survival analysis, Aged, Science & Technology, business.industry, SARS-CoV-2, Anticoagulants, COVID-19, Odds ratio, Heparin, Low-Molecular-Weight, medicine.disease, Survival Analysis, COVID-19 Drug Treatment, lnfectious Diseases and Global Health Radboud Institute for Health Sciences [Radboudumc 4], Heparin, Low-Molecular-Weight/therapeutic use, ACTIV-4a Investigators, Human medicine, REMAP-CAP Investigators, business
Abstract

BACKGROUNDThrombosis and inflammation may contribute to the risk of death and complications among patients with coronavirus disease 2019 (Covid-19). We hypothesized that therapeutic-dose anticoagulation may improve outcomes in noncritically ill patients who are hospitalized with Covid-19.METHODSIn this open-label, adaptive, multiplatform, controlled trial, we randomly assigned patients who were hospitalized with Covid-19 and who were not critically ill (which was defined as an absence of critical care–level organ support at enrollment) to receive pragmatically defined regimens of either therapeutic-dose anticoagulation with heparin or usual-care pharmacologic thromboprophylaxis. The primary outcome was organ support–free days, evaluated on an ordinal scale that combined in-hospital death (assigned a value of −1) and the number of days free of cardiovascular or respiratory organ support up to day 21 among patients who survived to hospital discharge. This outcome was evaluated with the use of a Bayesian statistical model for all patients and according to the baseline d-dimer level.RESULTSThe trial was stopped when prespecified criteria for the superiority of therapeutic-dose anticoagulation were met. Among 2219 patients in the final analysis, the probability that therapeutic-dose anticoagulation increased organ support–free days as compared with usual-care thromboprophylaxis was 98.6% (adjusted odds ratio, 1.27; 95% credible interval, 1.03 to 1.58). The adjusted absolute between-group difference in survival until hospital discharge without organ support favoring therapeutic-dose anticoagulation was 4.0 percentage points (95% credible interval, 0.5 to 7.2). The final probability of the superiority of therapeutic-dose anticoagulation over usual-care thromboprophylaxis was 97.3% in the high d-dimer cohort, 92.9% in the low d-dimer cohort, and 97.3% in the unknown d-dimer cohort. Major bleeding occurred in 1.9% of the patients receiving therapeutic-dose anticoagulation and in 0.9% of those receiving thromboprophylaxis.CONCLUSIONSIn noncritically ill patients with Covid-19, an initial strategy of therapeutic-dose anticoagulation with heparin increased the probability of survival to hospital discharge with reduced use of cardiovascular or respiratory organ support as compared with usual-care thromboprophylaxis. (ATTACC, ACTIV-4a, and REMAP-CAP ClinicalTrials.gov numbers, NCT04372589. opens in new tab, NCT04505774. opens in new tab, NCT02735707. opens in new tab, and NCT04359277. opens in new tab.)

Published
2021

9. Therapeutic Anticoagulation with Heparin in Noncritically Ill Patients with Covid-19

Author

ATTACC Investigators, ACTIV-4a Investigators, REMAP-CAP Investigators, Lawler, Patrick R, Goligher, Ewan C, Berger, Jeffrey S, Neal, Matthew D, McVerry, Bryan J, Nicolau, Jose C, Gong, Michelle N, Carrier, Marc, Rosenson, Robert S, Reynolds, Harmony R, Turgeon, Alexis F, Escobedo, Jorge, Huang, David T, Bradbury, Charlotte A, Houston, Brett L, Kornblith, Lucy Z, Kumar, Anand, Kahn, Susan R, Cushman, Mary, McQuilten, Zoe, Slutsky, Arthur S, Kim, Keri S, Gordon, Anthony C, Kirwan, Bridget-Anne, Brooks, Maria M, Higgins, Alisa M, Lewis, Roger J, Lorenzi, Elizabeth, Berry, Scott M, Berry, Lindsay R, Aday, Aaron W, Al-Beidh, Farah, Annane, Djillali, Arabi, Yaseen M, Aryal, Diptesh, Baumann Kreuziger, Lisa, Beane, Abi, Bhimani, Zahra, Bihari, Shailesh, Billett, Henny H, Bond, Lindsay, Bonten, Marc, Brunkhorst, Frank, Buxton, Meredith, Buzgau, Adrian, Castellucci, Lana A, Chekuri, Sweta, Chen, Jen-Ting, Cheng, Allen C, Chkhikvadze, Tamta, Coiffard, Benjamin, Costantini, Todd W, De Brouwer, Sophie, Derde, Lennie PG, Detry, Michelle A, Duggal, Abhijit, Džavík, Vladimír, Effron, Mark B, Estcourt, Lise J, Everett, Brendan M, Fergusson, Dean A, Fitzgerald, Mark, Fowler, Robert A, Galanaud, Jean P, Galen, Benjamin T, Gandotra, Sheetal, García-Madrona, Sebastian, Girard, Timothy D, Godoy, Lucas C, Goodman, Andrew L, Goossens, Herman, Green, Cameron, Greenstein, Yonatan Y, Gross, Peter L, Hamburg, Naomi M, Haniffa, Rashan, Hanna, George, Hanna, Nicholas, Hegde, Sheila M, Hendrickson, Carolyn M, Hite, R Duncan, Hindenburg, Alexander A, Hope, Aluko A, Horowitz, James M, Horvat, Christopher M, Hudock, Kristin, Hunt, Beverley J, Husain, Mansoor, Hyzy, Robert C, Iyer, Vivek N, Jacobson, Jeffrey R, Jayakumar, Devachandran, Keller, Norma M, Khan, Akram, Kim, Yuri, Kindzelski, Andrei L, King, Andrew J, Knudson, M Margaret, Kornblith, Aaron E, Krishnan, Vidya, Kutcher, Matthew E, Laffan, Michael A, Lamontagne, Francois, Le Gal, Grégoire, Leeper, Christine M, Leifer, Eric S, Lim, George, Lima, Felipe Gallego, Linstrum, Kelsey, Litton, Edward, Lopez-Sendon, Jose, Lopez-Sendon Moreno, Jose L, Lother, Sylvain A, Malhotra, Saurabh, Marcos, Miguel, Saud Marinez, Andréa, Marshall, John C, Marten, Nicole, Matthay, Michael A, McAuley, Daniel F, McDonald, Emily G, McGlothlin, Anna, McGuinness, Shay P, Middeldorp, Saskia, Montgomery, Stephanie K, Moore, Steven C, Morillo Guerrero, Raquel, Mouncey, Paul R, Murthy, Srinivas, Nair, Girish B, Nair, Rahul, Nichol, Alistair D, Nunez-Garcia, Brenda, Pandey, Ambarish, Park, Pauline K, Parke, Rachael L, Parker, Jane C, Parnia, Sam, Paul, Jonathan D, Pérez González, Yessica S, Pompilio, Mauricio, Prekker, Matthew E, Quigley, John G, Rost, Natalia S, Rowan, Kathryn, Santos, Fernanda O, Santos, Marlene, Olombrada Santos, Mayler, Satterwhite, Lewis, Saunders, Christina T, Schutgens, Roger EG, Seymour, Christopher W, Siegal, Deborah M, Silva, Delcio G, Shankar-Hari, Manu, Sheehan, John P, Singhal, Aneesh B, Solvason, Dayna, Stanworth, Simon J, Tritschler, Tobias, Turner, Anne M, Van Bentum-Puijk, Wilma, Van De Veerdonk, Frank L, Van Diepen, Sean, Vazquez-Grande, Gloria, Wahid, Lana, Wareham, Vanessa, Wells, Bryan J, Widmer, R Jay, Wilson, Jennifer G, Yuriditsky, Eugene, Zampieri, Fernando G, Angus, Derek C, McArthur, Colin J, Webb, Steven A, Farkouh, Michael E, Hochman, Judith S, and Zarychanski, Ryan

Subjects
Adult, Male, Heparin, Anticoagulants, COVID-19, Hemorrhage, Thrombosis, Heparin, Low-Molecular-Weight, Middle Aged, Survival Analysis, 3. Good health, COVID-19 Drug Treatment, Humans, Female, Hospital Mortality, Aged
Abstract

BACKGROUND: Thrombosis and inflammation may contribute to the risk of death and complications among patients with coronavirus disease 2019 (Covid-19). We hypothesized that therapeutic-dose anticoagulation may improve outcomes in noncritically ill patients who are hospitalized with Covid-19. METHODS: In this open-label, adaptive, multiplatform, controlled trial, we randomly assigned patients who were hospitalized with Covid-19 and who were not critically ill (which was defined as an absence of critical care-level organ support at enrollment) to receive pragmatically defined regimens of either therapeutic-dose anticoagulation with heparin or usual-care pharmacologic thromboprophylaxis. The primary outcome was organ support-free days, evaluated on an ordinal scale that combined in-hospital death (assigned a value of -1) and the number of days free of cardiovascular or respiratory organ support up to day 21 among patients who survived to hospital discharge. This outcome was evaluated with the use of a Bayesian statistical model for all patients and according to the baseline d-dimer level. RESULTS: The trial was stopped when prespecified criteria for the superiority of therapeutic-dose anticoagulation were met. Among 2219 patients in the final analysis, the probability that therapeutic-dose anticoagulation increased organ support-free days as compared with usual-care thromboprophylaxis was 98.6% (adjusted odds ratio, 1.27; 95% credible interval, 1.03 to 1.58). The adjusted absolute between-group difference in survival until hospital discharge without organ support favoring therapeutic-dose anticoagulation was 4.0 percentage points (95% credible interval, 0.5 to 7.2). The final probability of the superiority of therapeutic-dose anticoagulation over usual-care thromboprophylaxis was 97.3% in the high d-dimer cohort, 92.9% in the low d-dimer cohort, and 97.3% in the unknown d-dimer cohort. Major bleeding occurred in 1.9% of the patients receiving therapeutic-dose anticoagulation and in 0.9% of those receiving thromboprophylaxis. CONCLUSIONS: In noncritically ill patients with Covid-19, an initial strategy of therapeutic-dose anticoagulation with heparin increased the probability of survival to hospital discharge with reduced use of cardiovascular or respiratory organ support as compared with usual-care thromboprophylaxis. (ATTACC, ACTIV-4a, and REMAP-CAP ClinicalTrials.gov numbers, NCT04372589, NCT04505774, NCT04359277, and NCT02735707.).

10. Therapeutic Anticoagulation with Heparin in Critically Ill Patients with Covid-19

Author

REMAP-CAP Investigators, ACTIV-4a Investigators, ATTACC Investigators, Goligher, Ewan C, Bradbury, Charlotte A, McVerry, Bryan J, Lawler, Patrick R, Berger, Jeffrey S, Gong, Michelle N, Carrier, Marc, Reynolds, Harmony R, Kumar, Anand, Turgeon, Alexis F, Kornblith, Lucy Z, Kahn, Susan R, Marshall, John C, Kim, Keri S, Houston, Brett L, Derde, Lennie PG, Cushman, Mary, Tritschler, Tobias, Angus, Derek C, Godoy, Lucas C, McQuilten, Zoe, Kirwan, Bridget-Anne, Farkouh, Michael E, Brooks, Maria M, Lewis, Roger J, Berry, Lindsay R, Lorenzi, Elizabeth, Gordon, Anthony C, Ahuja, Tania, Al-Beidh, Farah, Annane, Djillali, Arabi, Yaseen M, Aryal, Diptesh, Baumann Kreuziger, Lisa, Beane, Abi, Bhimani, Zahra, Bihari, Shailesh, Billett, Henny H, Bond, Lindsay, Bonten, Marc, Brunkhorst, Frank, Buxton, Meredith, Buzgau, Adrian, Castellucci, Lana A, Chekuri, Sweta, Chen, Jen-Ting, Cheng, Allen C, Chkhikvadze, Tamta, Coiffard, Benjamin, Contreras, Aira, Costantini, Todd W, De Brouwer, Sophie, Detry, Michelle A, Duggal, Abhijit, Džavík, Vladimír, Effron, Mark B, Eng, Heather F, Escobedo, Jorge, Estcourt, Lise J, Everett, Brendan M, Fergusson, Dean A, Fitzgerald, Mark, Fowler, Robert A, Froess, Joshua D, Fu, Zhuxuan, Galanaud, Jean P, Galen, Benjamin T, Gandotra, Sheetal, Girard, Timothy D, Goodman, Andrew L, Goossens, Herman, Green, Cameron, Greenstein, Yonatan Y, Gross, Peter L, Haniffa, Rashan, Hegde, Sheila M, Hendrickson, Carolyn M, Higgins, Alisa M, Hindenburg, Alexander A, Hope, Aluko A, Horowitz, James M, Horvat, Christopher M, Huang, David T, Hudock, Kristin, Hunt, Beverley J, Husain, Mansoor, Hyzy, Robert C, Jacobson, Jeffrey R, Jayakumar, Devachandran, Keller, Norma M, Khan, Akram, Kim, Yuri, Kindzelski, Andrei, King, Andrew J, Knudson, M Margaret, Kornblith, Aaron E, Kutcher, Matthew E, Laffan, Michael A, Lamontagne, Francois, Le Gal, Grégoire, Leeper, Christine M, Leifer, Eric S, Lim, George, Gallego Lima, Felipe, Linstrum, Kelsey, Litton, Edward, Lopez-Sendon, Jose, Lother, Sylvain A, Marten, Nicole, Saud Marinez, Andréa, Martinez, Mary, Mateos Garcia, Eduardo, Mavromichalis, Stavroula, McAuley, Daniel F, McDonald, Emily G, McGlothlin, Anna, McGuinness, Shay P, Middeldorp, Saskia, Montgomery, Stephanie K, Mouncey, Paul R, Murthy, Srinivas, Nair, Girish B, Nair, Rahul, Nichol, Alistair D, Nicolau, Jose C, Nunez-Garcia, Brenda, Park, John J, Park, Pauline K, Parke, Rachael L, Parker, Jane C, Parnia, Sam, Paul, Jonathan D, Pompilio, Mauricio, Quigley, John G, Rosenson, Robert S, Rost, Natalia S, Rowan, Kathryn, Santos, Fernanda O, Santos, Marlene, Santos, Mayler O, Satterwhite, Lewis, Saunders, Christina T, Schreiber, Jake, Schutgens, Roger EG, Seymour, Christopher W, Siegal, Deborah M, Silva, Delcio G, Singhal, Aneesh B, Slutsky, Arthur S, Solvason, Dayna, Stanworth, Simon J, Turner, Anne M, Van Bentum-Puijk, Wilma, Van De Veerdonk, Frank L, Van Diepen, Sean, Vazquez-Grande, Gloria, Wahid, Lana, Wareham, Vanessa, Widmer, R Jay, Wilson, Jennifer G, Yuriditsky, Eugene, Zhong, Yongqi, Berry, Scott M, McArthur, Colin J, Neal, Matthew D, Hochman, Judith S, Webb, Steven A, and Zarychanski, Ryan

Subjects
Male, Heparin, Critical Illness, Anticoagulants, COVID-19, Hemorrhage, Thrombosis, Middle Aged, Respiration, Artificial, 3. Good health, COVID-19 Drug Treatment, Logistic Models, Odds Ratio, Humans, Female, Hospital Mortality, Treatment Failure, Aged
Abstract

BACKGROUND: Thrombosis and inflammation may contribute to morbidity and mortality among patients with coronavirus disease 2019 (Covid-19). We hypothesized that therapeutic-dose anticoagulation would improve outcomes in critically ill patients with Covid-19. METHODS: In an open-label, adaptive, multiplatform, randomized clinical trial, critically ill patients with severe Covid-19 were randomly assigned to a pragmatically defined regimen of either therapeutic-dose anticoagulation with heparin or pharmacologic thromboprophylaxis in accordance with local usual care. The primary outcome was organ support-free days, evaluated on an ordinal scale that combined in-hospital death (assigned a value of -1) and the number of days free of cardiovascular or respiratory organ support up to day 21 among patients who survived to hospital discharge. RESULTS: The trial was stopped when the prespecified criterion for futility was met for therapeutic-dose anticoagulation. Data on the primary outcome were available for 1098 patients (534 assigned to therapeutic-dose anticoagulation and 564 assigned to usual-care thromboprophylaxis). The median value for organ support-free days was 1 (interquartile range, -1 to 16) among the patients assigned to therapeutic-dose anticoagulation and was 4 (interquartile range, -1 to 16) among the patients assigned to usual-care thromboprophylaxis (adjusted proportional odds ratio, 0.83; 95% credible interval, 0.67 to 1.03; posterior probability of futility [defined as an odds ratio

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