Operations Research of the 'Real World' Effectiveness of Multi-Month Dispensing of ART for Stable Patients in CARGs in Zimbabwe

This study aims to evaluate the effectiveness of two strategies for multi-month dispensing (MMD) of ART in Community ART Refill Groups (CARGs) on retention, virologic suppression, and cost compared to standard of care. This study is a three-arm cluster-randomized controlled trial conducted among 5,760 stable HIV-positive patients) in Zimbabwe to compare outcomes of three antiretroviral therapy (ART) dispensing models. Outcomes of retention in care, virologic suppression, and cost effectiveness will be investigated in 30 purposively selected clusters (facilities) which are randomized into three arms; standard of care (3 months dispensing at facilities), three-month dispensing in CARGs, and six-month dispensing in CARGs. Each study arm will have 10 clusters stratified into 2 urban and 8 rural. Study participants will be followed, and outcomes will be measured at 12 months and 24 months. Qualitative research will be conducted at baseline, 12 months, and 24 months (20 participant Focus Group Discussion (FGDs) and 20 provider Key Informant Interview (KII) at each interval) to understand patient and health provider acceptability of multi-month dispensing of ART within CARGs. Other outcomes of interest include measuring gains of facility decongestion and feasibility of multi-month dispensing of ART within CARGs. Cost analysis will include comparisons of patient level costs, cost per patient outcomes and cost effectiveness across the three study arms.