Browsing by Author "Ehrenkranz P"

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Differentiated Care Preferences of Stable Patients on Antiretroviral Therapy in Zambia: A Discrete Choice Experiment.
(2019-Aug-15) Eshun-Wilson I; Mukumbwa-Mwenechanya M; Kim HY; Zannolini A; Mwamba CP; Dowdy D; Kalunkumya E; Lumpa M; Beres LK; Roy M; Sharma A; Topp SM; Glidden DV; Padian N; Ehrenkranz P; Sikazwe I; Holmes CB; Bolton-Moore C; Geng EH; United Kingdom Department for International Development, Dar Es Salaam office, Tanzania.; University of California, San Francisco, San Francisco, CA.; University of California, Berkeley, Berkeley, CA.; Bill and Melinda Gates Foundation, Seattle, WA.; Georgetown University, Washington, DC.; Johns Hopkins University, Baltimore, MD.; James Cook University, Townsville, Australia.; Africa Health Research Institute, Durban, South Africa.; Centre for Infectious Disease Research in Zambia, Lusaka, Zambia.; University of Alabama at Birmingham, Birmingham, AL.; CIDRZ; Centre for Infectious Disease Research in Zambia (CIDRZ)
BACKGROUND: Although differentiated service delivery (DSD) models for stable patients on antiretroviral therapy (ART) offer a range of health systems innovations, their comparative desirability to patients remains unknown. We conducted a discrete choice experiment to quantify service attributes most desired by patients to inform model prioritization. METHODS: Between July and December 2016, a sample of HIV-positive adults on ART at 12 clinics in Zambia were asked to choose between 2 hypothetical facilities that differed across 6 DSD attributes. We used mixed logit models to explore preferences, heterogeneity, and trade-offs. RESULTS: Of 486 respondents, 59% were female and 85% resided in urban locations. Patients strongly preferred infrequent clinic visits [3- vs. 1-month visits: β (ie, relative utility) = 2.84; P < 0.001]. Milder preferences were observed for waiting time for ART pick-up (1 vs. 6 hours.; β = -0.67; P < 0.001) or provider (1 vs. 3 hours.; β = -0.41; P = 0.002); "buddy" ART collection (β = 0.84; P < 0.001); and ART pick-up location (clinic vs. community: β = 0.35; P = 0.028). Urban patients demonstrated a preference for collecting ART at a clinic (β = 1.32, P < 0.001), and although most rural patients preferred community ART pick-up (β = -0.74, P = 0.049), 40% of rural patients still preferred facility ART collection. CONCLUSIONS: Stable patients on ART primarily want to attend clinic infrequently, supporting a focus in Zambia on optimizing multimonth prescribing over other DSD features-particularly in urban areas. Substantial preference heterogeneity highlights the need for DSD models to be flexible, and accommodate both setting features and patient choice in their design.
Emerging priorities for HIV service delivery.
(2020-Feb) Ford N; Geng E; Ellman T; Orrell C; Ehrenkranz P; Sikazwe I; Jahn A; Rabkin M; Ayisi Addo S; Grimsrud A; Rosen S; Zulu I; Reidy W; Lejone T; Apollo T; Holmes C; Kolling AF; Phate Lesihla R; Nguyen HH; Bakashaba B; Chitembo L; Tiriste G; Doherty M; Bygrave H; National AIDS Control Programme, Ministry of Health, Accra, Ghana.; Department HIV, World Health Organization, Addis Ababa, Ethiopia.; ICAP, Columbia University Mailman School of Public Health, New York, New York, United States of America.; Bill and Melinda Gates Foundation, Seattle, Washington, United States of America.; National AIDS Control Programme, Ministry of Health, Maseru, Lesotho.; Southern African Medical Unit, Médecins Sans Frontières, Cape Town, South Africa.; Department of Surveillance, Prevention and Control of STIs, HIV/AIDS and Viral Hepatitis, Ministry of Health, Brasilia, Brazil.; SolidarMed, Swiss Organization for Health in Africa, Butha-Buthe, Lesotho.; The AIDS Support Organization (TASO), Kampala, Uganda.; International AIDS Society, Cape Town, South Africa.; Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.; Division of Global HIV & TB, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America.; Georgetown University, Washington, DC, United States of America.; Treatment and Care Department, Viet Nam Authority of HIV/AIDS Control, Ministry of Health, Hanoi, Vietnam.; Ministry of Health and Child Care Zimbabwe, Harare, Zimbabwe.; Ministry of Health, Lilongwe, Malawi.; Department of Medicine, Faculty of Health Sciences, Cape Town, South Africa.; Department of Global Health, Boston University School of Public Health, Boston, Massachusetts, United States of America.; Department HIV, World Health Organization Lusaka, Zambia.; Centre for Infectious Disease Research in Zambia, Lusaka, Zambia.; Department HIV & Global Hepatitis Programme, World Health Organization, Geneva, Switzerland.; Center for Dissemination and Implementation, Institute for Public Health, Washington University, St. Louis, Missouri, United States of America.; CIDRZ; Centre for Infectious Disease Research in Zambia (CIDRZ)
Nathan Ford and co-authors discuss global priorities in the provision of HIV prevention and treatment services.
Participation in adherence clubs and on-time drug pickup among HIV-infected adults in Zambia: A matched-pair cluster randomized trial.
(2020-Jul) Roy M; Bolton-Moore C; Sikazwe I; Mukumbwa-Mwenechanya M; Efronson E; Mwamba C; Somwe P; Kalunkumya E; Lumpa M; Sharma A; Pry J; Mutale W; Ehrenkranz P; Glidden DV; Padian N; Topp S; Geng E; Holmes CB; University of California, Davis, Davis, California, United States of America.; University of California, Berkeley, Berkeley, California, United States of America.; University of Alabama, Tuscaloosa, Alabama, United States of America.; Bill and Melinda Gates Foundation, Seattle, Washington, United States of America.; James Cook University, Townsville, Queensland, Australia.; Centre for Infectious Disease Research in Zambia, Lusaka, Zambia.; University of California, San Francisco, San Fancisco, California, United States of America.; Johns Hopkins University, Baltimore, Maryland, United States of America.; Center for Global Health Practice and Impact, Georgetown University School of Medicine, Washington, District of Columbia, United States of America.; CIDRZ; Centre for Infectious Disease Research in Zambia (CIDRZ)
BACKGROUND: Current models of HIV service delivery, with frequent facility visits, have led to facility congestion, patient and healthcare provider dissatisfaction, and suboptimal quality of services and retention in care. The Zambian urban adherence club (AC) is a health service innovation designed to improve on-time drug pickup and retention in HIV care through off-hours facility access and pharmacist-led group drug distribution. Similar models of differentiated service delivery (DSD) have shown promise in South Africa, but observational analyses of these models are prone to bias and confounding. We sought to evaluate the effectiveness and implementation of ACs in Zambia using a more rigorous study design. METHODS AND FINDINGS: Using a matched-pair cluster randomized study design (ClinicalTrials.gov: NCT02776254), 10 clinics were randomized to intervention (5 clinics) or control (5 clinics). At each clinic, between May 19 and October 27, 2016, a systematic random sample was assessed for eligibility (HIV+, age ≥ 14 years, on ART >6 months, not acutely ill, CD4 count not <200 cells/mm3) and willingness to participate in an AC. Clinical and antiretroviral drug pickup data were obtained through the existing electronic medical record. AC meeting attendance data were collected at intervention facilities prospectively through October 28, 2017. The primary outcome was time to first late drug pickup (>7 days late). Intervention effect was estimated using unadjusted Kaplan-Meier survival curves and a Cox proportional hazards model to derive an adjusted hazard ratio (aHR). Medication possession ratio (MPR) and implementation outcomes (adoption, acceptability, appropriateness, feasibility, and fidelity) were additionally evaluated as secondary outcomes. Baseline characteristics were similar between 571 intervention and 489 control participants with respect to median age (42 versus 41 years), sex (62% versus 66% female), median time since ART initiation (4.8 versus 5.0 years), median CD4 count at study enrollment (506 versus 533 cells/mm3), and baseline retention (53% versus 55% with at least 1 late drug pickup in previous 12 months). The rate of late drug pickup was lower in intervention participants compared to control participants (aHR 0.26, 95% CI 0.15-0.45, p < 0.001). Median MPR was 100% in intervention participants compared to 96% in control participants (p < 0.001). Although 18% (683/3,734) of AC group meeting visits were missed, on-time drug pickup (within 7 days) still occurred in 51% (350/683) of these missed visits through alternate means (use of buddy pickup or early return to the facility). Qualitative evaluation suggests that the intervention was acceptable to both patients and providers. While patients embraced the convenience and patient-centeredness of the model, preference for traditional adherence counseling and need for greater human resources influenced intervention appropriateness and feasibility from the provider perspective. The main limitations of this study were the small number of clusters, lack of viral load data, and relatively short follow-up period. CONCLUSIONS: ACs were found to be an effective model of service delivery for reducing late ART drug pickup among HIV-infected adults in Zambia. Drug pickup outside of group meetings was relatively common and underscores the need for DSD models to be flexible and patient-centered if they are to be effective. TRIAL REGISTRATION: ClinicalTrials.gov NCT02776254.
Patient-reported Reasons for Stopping Care or Switching Clinics in Zambia: A Multisite, Regionally Representative Estimate Using a Multistage Sampling-based Approach in Zambia.
(2021-Oct-05) Sikazwe I; Eshun-Wilson I; Sikombe K; Beres LK; Somwe P; Mody A; Simbeza S; Bukankala C; Glidden DV; Mulenga LB; Padian N; Ehrenkranz P; Bolton-Moore C; Holmes CB; Geng EH; Washington University in St Louis, St Louis, Missouri, USA.; University of California Berkeley, Berkeley, California, USA.; Centre for Infectious Disease Research in Zambia, Lusaka, Zambia.; London School of Hygiene and Tropical Medicine, London, United Kingdom.; University of Alabama at Birmingham, Birmingham, Alabama, USA.; Ministry of Health, Lusaka, Zambia.; Bill and Melinda Gates Foundation, Seattle, Washington, USA.; Johns Hopkins University, Baltimore, Maryland, USA.; Georgetown University, Washington, D.C., USA.; CIDRZ; Centre for Infectious Disease Research in Zambia (CIDRZ)
BACKGROUND: Understanding patient-reported reasons for lapses of retention in human immunodeficiency virus (HIV) treatment can drive improvements in the care cascade. A systematic assessment of outcomes among a random sample of patients lost to follow-up (LTFU) from 32 clinics in Zambia to understand the reasons for silent transfers and disengagement from care was undertaken. METHODS: We traced a simple random sample of LTFU patients (>90 days from last scheduled visit) as determined from clinic-based electronic medical records from a probability sample of facilities. Among patients found in person, we solicited reasons for either stopping or switching care and predictors for re-engagement. We coded reasons into structural, psychosocial, and clinic-based barriers. RESULTS: Among 1751 LTFU patients traced and found alive, 31% of patients starting antiretroviral therapy (ART) between 1 July 2013 and 31 July 2015 silently transferred or were disengaged (40% male; median age, 35 years; median CD4 level, 239 cells/μL); median time on ART at LTFU was 480 days (interquartile range, 110-1295). Among the 544 patients not in care, median prevalences for patient-reported structural, psychosocial, and clinic-level barriers were 27.3%, 13.9%, and 13.4%, respectively, and were highly variable across facilities. Structural reasons, including, "relocated to a new place" were mostly cited among 289 patients who silently transferred (35.5%). We found that men were less likely to re-engage in care than women (odds ratio, .39; 95% confidence interval, .22-.67; P = .001). CONCLUSIONS: Efforts to improve retention of patients on ART may need to be tailored at the facility level to address patient-reported barriers.
Silver linings: how COVID-19 expedited differentiated service delivery for HIV.
(2021-Oct) Grimsrud A; Ehrenkranz P; Sikazwe I; HIV Programmes and Advocacy, International AIDS Society, Cape Town, South Africa.; Global Health, Bill & Melinda Gates Foundation, Seattle, Washington.; Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia.
The revolving door of HIV care: Revising the service delivery cascade to achieve the UNAIDS 95-95-95 goals.
(2021-May) Ehrenkranz P; Rosen S; Boulle A; Eaton JW; Ford N; Fox MP; Grimsrud A; Rice BD; Sikazwe I; Holmes CB; Center for Innovation in Global Health, Georgetown University, Washington, DC, United States of America.; MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, United Kingdom.; Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States of America.; Health Economics and Epidemiology Research Office, Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.; HIV & Global Hepatitis Programme, World Health Organization, Geneva, Switzerland.; Department of Public Health, Environments and Society, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom.; School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa.; HIV Programmes & Advocacy Department, International AIDS Society, Cape Town, South Africa.; Centre for Infectious Disease Research in Zambia, Lusaka, Zambia.; Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.; Department of Global Health, Boston University School of Public Health, Boston, MA, United States of America.; Global Health, Bill & Melinda Gates Foundation, Seattle, WA, United States of America.; CIDRZ; Centre for Infectious Disease Research in Zambia (CIDRZ)
Peter Ehrenkranz and co-authors present a cyclical cascade of care for people with HIV infection, aiming to facilitate assessment of outcomes.