Asociación Civil Impacta Salud y Educación

The overall objective is to determine the influence of timing of ART initiation and alcohol consumption on HIV disease course. ART initiation immediately after HIV infection largely results in smaller HIV reservoir and lower HIV-associated systemic inflammation, which has been linked to non-AIDS morbidity and mortality. Immediate ART also reduces HIV-associated bacterial translocation and may prevent intestinal microbiome dysbiosis, that has been linked to increased systemic inflammation. Immediate intervention is not, however, generally feasible and more information is required about the consequences of starting ART at later time-points, but still early after acquisition. The study will be conducted in Lima, Peru, in a cohort of 180 MSM and transgender women (TW) with acute (Ab-, HIV RNA+) or recent (≤ 3 months) HIV infection. Alcohol use disorder (AUDIT score ≥8) is present in
50% of HIV + participants in our cohort, four times higher than that seen among males in the general Peruvian population. Although the role of alcohol use in HIV pathogenesis and disease course remains unclear, some studies show a correlation with accelerated disease progression. The effects of alcohol resemble early post-infection changes in bacterial translocation and pro-inflammatory cytokines induced by HIV and their impact on HIV disease course before and after ART initiation remain unexplored.
Specific Aim 1: To determine the relative long-term benefits of immediate vs. early vs. delayed ART initiation at 24 weeks after diagnosis. The investigators will study outcomes after 2 and 4 years in MSM and TW diagnosed with acute or recent HIV infection.
Specific Aim 2: To determine the impact of alcohol use on the relative long-term benefits of immediate vs. early vs. delayed initiation of ART.

The investigators propose a social network-based PrEP adherence intervention as part of a comprehensive, context-specific approach to HIV prevention for TW in Lima, Peru. In order to be effective, PrEP-based prevention strategies need to address not only biological efficacy, but also individual behavioral decision-making processes, interpersonal partnership contexts of risk, peer norms of sexual behavior and PrEP adherence, and structural access to prevention technologies. Using a health promotion behavioral model that combines Social Action Theory with social network theories of information dissemination and collective behavior change, the investigators propose to develop and refine a network-based intervention that promotes PrEP adherence in the existing social networks of TW. Formative research will outline individual, partner-level, and network-based contexts of sexual risk behavior, patterns of social network interactions, anticipated adoption and use of new prevention technologies, and optimal content for a PrEP adherence intervention. Findings will be used to define the elements of a prevention intervention using social networks of TW and social media technologies to generate, implement, and reinforce social norms of PrEP adherence and risk behavior reduction for TW.

The purpose of the study is to evaluating the acceptability, use and adherence of a pre-exposure prophylaxis (PrEP) program using the co-formulation tenofovir disoproxil fumarate 300 mg/emtricitabine 200 mg (TDF/FTC) administered daily by mouth, at four health facilities and one community-based organization providing health care services for MSM and transgender women.
This is an Observational, longitudinal, multicenter, open-label study to evaluate the acceptability, use and adherence to TDF/FTC-based PrEP in volunteer men who have sex with men and transgender women at substantial high risk of acquiring HIV, who were prescribed for PrEP , following the clinical guidelines to prevent HIV infection of the U.S. Centers for Disease Control and Prevention (2014) and the World Health Organization (2015).
Follow-up: Participants will be followed for 96 weeks (approximately two years) after the start of prophylactic treatment.
Implementation Target Population: Adults (≥18 years of age), without HIV infection diagnosis, and who were prescribed with PrEP and have a substantial risk of acquiring HIV infection according to the international guidelines for HIV prevention.
Sample Size: 1,000 participants
Implementation Sites:
Asociación Civil Impacta Salud y Educación, Barranco study site
Asociación Civil Impacta Salud y Educación, San Miguel study site
Asociación Civil Selva Amazónica, ACSA study site
Asociación Vía Libre, Vía Libre study site
Espacio Común, Epicentro study site
Primary Objectives:
Describing the acceptability and its socio-demographic and sexual behavior correlates for the use of PrEP.
Evaluate the persistence of the use of PrEP and its correlates with risk behaviors
Evaluating the adherence to the PrEP using self-reporting and pill counts
Secondary Objectives:
Describing the changes over time in risky sexual behavior among study participants.
Describing the number of participants who acquire HIV infection.
Evaluate the deviation of the indication of use of PrEP through self- reporting of its sale or sharing with third parties.