- 2 free apps, LYNX Study and P3, are available for young men who have sex with men (YMSM).
- Apps track sexual behaviors and use of preexposure prophylaxis (PrEP) adherence.
Why this matters
- YMSM represent the principal US population at risk for HIV because of low uptake of HIV testing and PrEP.
- 96% of 18-29-year-olds have smartphones.
- LYNX tracks sexual behaviors to increase perception of real risk, sends testing reminders, provides access to diagnosis, PrEP.
- Iterative focus groups used to refine the app (n=30; mean age 20 years; 43% black, 43% Hispanic; Chicago, Tampa).
- 2-month open pilot (n=16, mean age 22 years, 19% black, 44% Hispanic) tested usability, feasibility, acceptability.
- 85% very satisfied; and
- 86% would recommend the app.
- P3 addresses barriers to PrEP adherence in YMSM and transwomen.
- In 1-month field trial, 16 newly starting or reporting PrEP adherence completed computer-assisted survey; dried blood spots collected for PrEP adherence measurement.
- Mean age, 21.3 years; 25% black, 69% Hispanic; Houston, Philadelphia, the Bronx.
- Baseline: 50% reported prior PrEP usage and discontinuation, 50% sexually transmitted infection diagnosis, 43.8% condomless anal sex.
- Retention 94%; self-reported adherence improved from 72.5% to 89.3%.
- Apps use game-based and chat features.
- In development, small samples, conference presentation without peer review.