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Taking people in United StatesNo phase

Tests choice of follow-up location for people starting HIV prevention injections

Tests whether choosing follow-up location helps adults on lenacapavir HIV prevention stay on it.

Plain-language title generated from the registry record
Registry title: PrEP4U: Assessing the Effectiveness of Integrated Same-Day Lenacapavir Initiation and Follow-up Choice on PrEP Persistence

Key facts

Where
Boston, United StatesSee the 2 sites

Where in United States

  • Brigham and Women's HospitalBoston, United StatesTaking people
  • Massachusetts General Hospital Sexual Health ClinicBoston, United StatesTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
Massachusetts General Hospital
Trial code
NCT07335289
Record updated
23 September 2026
Original description
PrEP4U is designed as a pragmatic, randomized implementation trial to test strategies that could directly inform real-world roll-out of lenacapavir. By integrating:Read full original descriptionShow less

PrEP4U: Assessing the Effectiveness of Integrated Same-Day Lenacapavir Initiation and Follow-up Choice on PrEP Persistence

PrEP4U is designed as a pragmatic, randomized implementation trial to test strategies that could directly inform real-world roll-out of lenacapavir. By integrating:

* Same-day initiation based on rapid HIV testing, and * Choice of follow-up delivery location (home, community, or clinic) the study addresses two of the most pressing implementation questions for long-acting injectable PrEP.

The primary hypothesis is that giving participants choice in follow-up location will improve PrEP persistence compared to a clinic-only model. Secondary analyses will evaluate safety of rapid testing, acceptability, and participant costs. Exploratory analyses will assess HIV incidence and resistance.

Findings from PrEP4U will provide essential evidence to guide scalable, equitable, person-centered delivery models for lenacapavir PrEP in the U.S. and globally.

Inclusion: HIV negative; Eligible for HIV PrEP per CDC guidelines; Able and willing to provide informed consent; Willing to receive injectable lenacapavir and adhere to study procedures; Residing inMassachusetts with expected availability for 6-month follow-up.

Exclusion: Known HIV infection at baseline; Contraindication to lenacapavir injection (e.g., hypersensitivity, significant drug interactions); Participation in another interventional HIV prevention study; Any condition judged by the investigator to compromise safety or study integrity; Pregnancy at baseline (participants who become pregnant during the trial may remain enrolled if they choose).

ClinicalTrials.gov NCT07335289