Prevention Clinical Trial
Official title:
Impact of Long-acting Injectable Cabotegravir for HIV Pre-exposure Prophylaxis Persistence and Coverage in Men Who Have Sex With Men in France: a Randomized Controlled Clinical Trial.
The purpose of this study is to evaluate if offering long-acting injectable cabotegravir (CAB-LA) as an additional HIV prevention choice among oral PrEP-experienced men who have sex with men (MSM) in France can significantly increase the sustained PrEP use over time and the PrEP coverage of at-risk sexual risk behaviors.
Long-acting injectable cabotegravir (CAB-LA) is a promising agent to address the issue of uptake, adherence, and persistence among oral PrEP users who faced adherence challenges. However, the potential benefits of offering CAB-LA as an additional prevention option for MSM adherent to oral PrEP has yet to be demonstrated. We hypothesize that offering CAB-LA as an additional prevention option for MSM already using oral PrEP can mitigate PrEP fatigue over time, resulting in enhanced PrEP use and increased coverage of at-risk sexual intercourses. This study is designed as a pragmatic, open-label, multicenter, parallel-group, randomized controlled clinical trial aiming to enroll MSM using PrEP for at least 6 months. Participants will be randomly assigned in a 1:1 ratio to remain on their current oral PrEP regimen with daily and/or on-demand TDF/FTC (Control arm) or to switch to a CAB-LA based PrEP (Intervention arm). Participants will be enrolled over 6 months and followed for two years. The trial will be conducted at 9 clinical sites in the Paris region. The primary objective of the study will be to compare the sustained PrEP use over time among participants randomized to CAB-LA vs. oral TDF/FTC based PrEP at Months 12 and 24. The main secondary objectives will aim to evaluate the PrEP coverage of at-risk sexual intercourses, the change from baseline in sexual risk behaviors, the safety of the drugs, and the HIV incidence. The study protocol includes three ancillary studies: - Social science: Focus groups will be conducted among study participants to investigate their perceptions of CAB-LA, motivations for using it, adherence and persistence, changes in HIV risk perception, and impact on sexual satisfaction. Additionally, this study will assess healthcare providers' perceptions, barriers, and facilitators regarding CAB-LA implementation for PrEP. - Rectal tissue HIV-1 permissibility: This study aims to evaluate the protection from HIV-1 at different time points after oral and injectable CAB initiation using a model of Ex-vivo rectal tissue and PBMCs infection with HIV-1. - Medico-economics analysis: The main objective of this study is to establish cost-effectiveness performance benchmarks for CAB-LA in HIV PrEP. ;
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