Ontology highlight
ABSTRACT: Background
The success of longitudinal trials depends greatly on using effective strategies to retain participants and ensure internal validity, maintain sufficient statistical power, and provide for the generalizability of study results.Objective
This paper describes the challenges and specific strategies used to retain participants in a Phase 2B safety and effectiveness study of daily oral and vaginal tenofovir formulations for the prevention of HIV-1 infection in the MTN-003 (VOICE) trial in Kampala, Uganda.Methods
Once enrolled, participants were seen every 28 days at the research site and their study product was re-filled. Challenges to retention included a mobile population, non-disclosure of study participation to spouse/family, and economic constraints. Stra
SUBMITTER: Wynne J
PROVIDER: S-EPMC6614555 | biostudies-literature | 2018 Oct
REPOSITORIES: biostudies-literature