ATN 159: EPREP Number: NCT03729570

Study Summary:

ePrEP is a home-care system for PrEP that will allow rural MSM to initiate and maintain PrEP clinical care without requiring travel to a clinician office or to a laboratory for testing. ePrEP combines a home care system for behavioral surveillance and home specimen collection/shipping for laboratory tests with app-based telemedicine and patient management.

Study Details:

Study Duration:

Participants will remain in the study for 12 months after randomization

Sample Size:

240 (120 intervention, 120 control).


  • Assigned male at birth
  • Age 18-29 (inclusive)
  • Live in a rural or small town ZIP code based on CDC urbanicity classifications
  • Laboratory confirmed HIV negative
  • Owns an iOS or Android smartphone capable of running the study app
  • Behaviorally indicated for PrEP
  • Willing to take daily oral emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) as PrEP
  • Willing to use study-provided PrEP navigation services
  • Willing to self-collect specimens
  • More information on eligibility and exclusion criteria available on

Primarily Objective :

The primary outcome is protective levels of PrEP, as indicated by TFV-DP levels. The cutpoint used for the primary outcome measure will be TFV-DP levels considered to be a surrogate for substantial protection: >700 fmol/punch, a level indicating > 4 doses/week. Secondary outcomes will include retention in PrEP care and a number of ATN harmonized measures. We will employ standard methods of cost analyses to estimate the cost, cost-effectiveness, and cost-utility of the intervention relative to standard of care.

Protocol Chairs:

Aaron Siegler, PhD