The project draws on our strong findings from the preliminary work we conducted in Lima. The 3-year project will update and adapt an existing digital health couples-based HIV/STI prevention toolkit intervention that showed promise for reducing couples' HIV risk. The intervention is theoretically grounded in Couples Interdependence Theory for health behavior change. The project is a 6-month pilot randomized control trial with 60 at-risk male couples using a delayed, educational control condition of 3 months. Our Specific Aims are to: 1) Assess feasibility to retain 60 consented and eligible male couples in a 6-month pilot RCT through quantitative measurement of enrollment and retention/attrition rates, and by reason for attrition; 2) Describe acceptability of the adapted toolkit intervention using mixed methods23 from 3 data sources. At last follow-up, partners responses to the Health Information Usability Evaluation Scale24 and other survey items (e.g., 3 things liked best/least about the toolkit, features for improvement) will be captured, along with the additional details they will share about their experiences during the individual-level, qualitative exit interview; 3) Examine preliminary impact of the toolkit intervention on couples': a) formation and adherence to a tailored risk-reduction plan and agreement; b) relationship functioning (e.g., communication); c) use of/adherence to evidence-based HIV/STI prevention strategies; and d) HIV/STI incidence. Preliminary impact will be assessed via changes in couples' outcomes a-d over time between trial arms, and for all couples.
This digital couples-based HIV/STI prevention intervention project will determine preliminary efficacy to improve uptake of evidence-based strategies and a tailored prevention plan among cisgender male couples who are in a relationship (defined as greater than 3 months or more).