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Ever since the 1990s, implementation research in Ghana has guided the development of policies and practices that are essential to establishing community-based primary health care. In response to evidence emerging from this research, the Community-based Health Planning and Services (CHPS) policy was promulgated in 1999 to scale-up results. However, during the first decade of CHPS operation, national monitoring showed that its pace of coverage expansion was unacceptably slow. In 2010, the Ghana Health Service launched a 5-year plausibility trial of CHPS reform for testing ways to accelerate scale-up. This initiative, known as the Ghana Essential Health Intervention Program (GEHIP), included a knowledge management component for establishing congruence of knowledge generation and flow with the operational system that GEHIP evidence was intended to reform. Four Upper East Region districts served as trial areas, while seven districts were comparison areas. Interventions tested means of developing the upward flow of information based on perspectives of district managers, sub-district supervisors and community-level workers. GEHIP also endeavoured to improve procedures for the downward flow and utilization of policy guidelines. Field exchanges were convened for providing national, regional and district leaders with opportunities for participatory learning about GEHIP implementation innovations. This systems approach facilitated the process of augmenting the communication of evidence with practical field experience. Scientific rigor associated with the production of evidence was thereby integrated into management decision-making processes in ways that institutionalized learning at all levels. The GEHIP knowledge management system functioned as a prototype for guiding the planning of a national knowledge management strategy. A follow-up project transferred its mechanisms from the Upper East Regional Health Administration to the Policy Planning Monitoring and Evaluation Division of the Ghana Health Service in Accra. [ABSTRACT FROM AUTHOR]

Background Global gains toward malaria elimination have been heterogeneous and have recently stalled. Interventions targeting afebrile malaria infections may be needed to address residual transmission. We studied the efficacy of repeated rounds of community-based mass testing and treatment (MTaT) on malaria infection prevalence in western Kenya. Methods Twenty clusters were randomly assigned to 3 rounds of MTaT per year for 2 years or control (standard of care for testing and treatment at public health facilities along with government-sponsored mass long-lasting insecticidal net [LLIN] distributions). During rounds, community health volunteers visited all households in intervention clusters and tested all consenting individuals with a rapid diagnostic test. Those positive were treated with dihydroartemisinin-piperaquine. Cross-sectional community infection prevalence surveys were performed in both study arms at baseline and each year after 3 rounds of MTaT. The primary outcome was the effect size of MTaT on parasite prevalence by microscopy between arms by year, adjusted for age, reported LLIN use, enhanced vegetative index, and socioeconomic status. Results Demographic and behavioral characteristics, including LLIN usage, were similar between arms at each survey. MTaT coverage across the 3 annual rounds ranged between 75.0% and 77.5% in year 1, and between 81.9% and 94.3% in year 2. The adjusted effect size of MTaT on the prevalence of parasitemia between arms was 0.93 (95% confidence interval [CI],.79–1.08) and 0.92 (95% CI,.76–1.10) after year 1 and year 2, respectively. Conclusions MTaT performed 3 times per year over 2 years did not reduce malaria parasite prevalence in this high-transmission area. Clinical Trials Registration NCT02987270. [ABSTRACT FROM AUTHOR]

Background: The response to antimalarial treatment is assessed using serial microscopy. New techniques for accurate measurement of the Plasmodium falciparum histidine-rich protein 2 (HRP2) antigen have allowed for monitoring of the antigen concentration over time, offering a potential alternative for assessing treatment response.Methods: Posttreatment HRP2 concentrations were measured in samples obtained longitudinally from 537 individuals with P. falciparum malaria who were participating in efficacy trials in Angola, Tanzania, and Senegal. The HRP2 half-life was estimated using a first-order kinetics clearance model. The association between the HRP2 concentration 3 days after treatment and recrudescence of infection was assessed.Results: Despite substantial variation in HRP2 concentrations among participants at baseline, concentrations consistently showed a first-order exponential decline. The median half-life of HRP2 was estimated to be 4.5 days (interquartile range [IQR], 3.3-6.6 days) in Angola, 4.7 days (IQR, 4.0-5.9 days) in Tanzania, and 3.0 days (IQR, 2.1-4.5 days) in Senegal. The day 3 HRP2 concentration was predictive of eventual recrudescence, with an area under the receiver operating characteristic curve of 0.86 (95% confidence interval, .73-.99).Conclusions: Consistent HRP2 clearance dynamics following successful antimalarial treatment imply a common underlying mechanism of biological clearance. Patients who ultimately did not respond to treatment did not exhibit this same pattern of clearance, even in the absence of other indications of inadequate response to treatment. [ABSTRACT FROM AUTHOR]

Background. In 2007, Malawi replaced the first-line medication for uncomplicated malaria, sulfadoxinepyrimethamine- a single-dose regimen-with artemether-lumefantrine (AL)-a 6-dose, 3-day regimen. Because of concerns about the complex dosing schedule, we assessed patient adherence to AL 2 years after routine implementation. Methods. Adults and children with uncomplicated malaria were recruited at 3 health centers. We conducted both pill counts and in-home interviews on medication consumption 72 hours after patients received AL. Complete adherence was defined as correctly taking all 6 AL doses, as assessed by pill count and dose recall. We used logistic regression to identify factors associated with complete adherence. Results. Of 386 patients, 65% were completely adherent. Patients were significantly more likely to be completely adherent if they received their first dose of AL as directly observed therapy at the health center (odds ratio [OR], 2.4; P < .01), received instructions using the medication package as a visual aid (OR, 2.5; P = .02), and preferred AL over other antimalarials (OR, 2.7; P < .001). In contrast, children <5 years of age were significantly less likely to be adherent (OR, 0.5; P = .05). Conclusions. Adherence to AL treatment for uncomplicated malaria was moderate, and children, who are the most likely to die of malaria, were less adherent than adults. Efforts to improve adherence should be focused on this vulnerable group. Interventions including the introduction of child-friendly antimalarial formulations, direct observation of the first dose, use of the AL package as a visual aid for instructions, and enhancing patient preference for AL could potentially increase AL adherence and overall effectiveness. [ABSTRACT FROM AUTHOR]

Regulatory infringements are extremely common in low-income countries, especially with respect to retail pharmaceutical sales. There have been few practical suggestions on public policy responses other than stricter regulatory enforcement, which governments are often unable, or unwilling, to do. This paper explores the challenges of regulating retail drug sellers, and potential solutions, through a case study of malaria treatment in rural Tanzania where small drug shops are a common source of medicine. Infringement of health-related regulation was extremely common. Most stores lacked valid permits, and illegal stocking of prescription-only medicines and unpackaged tablets was the norm. Most stocked unregistered drugs, and no serving staff met the qualification requirements. Infringements are likely to have reflected infrequent regulatory inspections, a failure of regulatory authorities to implement sanctions, successful concealment of regulatory violations, and the tacit permission of local regulatory staff. Eliminating regulatory infringements is unlikely to be feasible, and could be undesirable if access to essential medicines is reduced. Alternatives include bringing official drug regulation closer into line with locally legitimate practices; greater use of positive incentives for providers; and consumer involvement. Such a change in approach has the potential to provide a firmer platform for public-private collaboration to improve shop-based treatment. [ABSTRACT FROM AUTHOR]

Abstract: Malaria is a leading cause of death in children aged &#60; 5 years in Malawi. As part of the Roll Back Malariainitiative, African heads of state have pledged that by 2005, 60% of children will receive an effective antimalarial drug within 24 h of developing fever. In 1993, Malawi switched from chloroquine to sulfadoxine-pyrimethamine (SP) in its recommendations of home treatment of febrile illness in children. To study care seeking behaviour and home treatment in Blantyre District, and provide valuable follow-up to the chloroquine to SP transition, we performed a 2-stage cluster-sample survey in February 2000. Our sample of 1080 households included 672 households with children aged &#60; 5 years; 292 (32.2%, 95% CI 28.7–35.8%) of the 912 children in these households had completed a febrile episode within the past 14 d. Among recently febrile children, 210 (72.0%, 95% CI 67.0–77.1%) received medication at home during their illness, but only 36 (12.2%, 95% CI 8.4–16.0%) received an appropriate antimalarial drug. Overall, 111 (37.4%, 95% CI 30.9–43.9%) received prompt, appropriate treatment. Only rural location was statistically associated with failure to receive prompt appropriate treatment (risk ratio estimate 1.2, 95% CI 1.01–1.5). A greater effort to improve the quality of malaria home treatment or to expand health facility utilization will be necessary to achieve Roll Back Malaria goals before 2005 in Blantyre District. Current care seeking practices suggest interventions should stress promptness of health facility visits, improved access to appropriate drugs, and accurate dosing for home-based treatments. [Copyright &y& Elsevier]