Evaluating Lenacapavir and Emtricitabine/Tenofovir for HIV Prevention in Women

A Phase 2, Open-label, Multicenter, Randomized Study to Evaluate the Pharmacokinetics, Safety, and Acceptability of Twice Yearly Long-acting Subcutaneous Lenacapavir for Pre-Exposure Prophylaxis in Cisgender Women in the United States

Phase 2 Interventional Gilead Sciences · NCT06101329

This study is testing if a new HIV prevention method using lenacapavir injections and a pill called emtricitabine/tenofovir is safe and acceptable for women in the U.S.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment250 (estimated)
Ages18 Years and up
SexFemale
SponsorGilead Sciences Industry-sponsored
Locations11 sites (Birmingham, Alabama and 10 other locations)
Trial IDNCT06101329 on ClinicalTrials.gov

What this trial studies

This clinical study aims to investigate how lenacapavir (LEN) is processed in the body and assess the safety of LEN combined with emtricitabine/tenofovir disoproxil fumarate (F/TDF) for preventing HIV in cisgender women in the United States. The study will characterize the pharmacokinetics of LEN, evaluate the safety of both LEN and F/TDF as pre-exposure prophylaxis (PrEP), and assess the acceptability of LEN injections and oral F/TDF among participants. The study is interventional and is conducted in various locations across the U.S.

Who should consider this trial

Good fit: Ideal candidates for this study are cisgender women who have engaged in condomless vaginal or anal sex with cisgender men in the past year.

Not a fit: Patients who are not at risk for HIV or those who do not meet the inclusion criteria, such as being HBsAg positive, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a new effective option for HIV prevention in cisgender women.

How similar studies have performed: Other studies have shown success with similar approaches in HIV prevention, indicating a promising avenue for further exploration.

Eligibility criteria

Show full inclusion / exclusion criteria
Key Inclusion Criteria:

* Report at least 1 episode of condomless vaginal or anal sex with a cisgender man in the 12 months before enrollment.
* Hepatitis B virus (HBV) surface antigen (HBsAg) negative.
* Self-report one or more of the following in the past 12 months (except for incarceration, which could have occurred in the past 5 years):

  1) Noninjection recreational drug use (ecstasy, cocaine, crack cocaine, methamphetamine, ketamine, 3,4-methylenedioxy-methamphetamine, or prescription drugs apart from those prescribed by a licensed provider); 2) Alcohol dependence (defined as Cut Down, Annoyed, Guilty, and Eye Opener score of 2); binge-drinking, defined as 4 or more drinks at a time; 3) History of STIs, such as gonorrhea, chlamydia, or syphilis; 4) Exchange of sex for commodities, such as drugs, money, or shelter; 5) Incarceration (jail or prison \> 24 hours within the past 5 years); 6) Two or more sexual partners who were assigned male at birth; 7) Sexual partner assigned male at birth with history of either injection or noninjection recreational drug use, sexually transmitted infections (STIs), human immunodeficiency virus (HIV) diagnosis or unknown HIV status, additional sex partners during the course of his sexual relationship with the individual, or incarceration (jail or prison \> 24 hours within the past 5 years)
* Negative local rapid HIV-1/2 antibody (Ab)/antigen (Ag) test, central HIV-1/2 Ab/Ag, and HIV-1 RNA quantitative nucleic acid amplification testing (NAAT).
* Estimated glomerular filtration rate (GFR) at least 60 mL/min at screening according to the Cockcroft-Gault formula for creatinine clearance (CLcr).

Key Exclusion Criteria:

* Self-reported history of previous positive results on an HIV test.
* One or more reactive or positive HIV test result at screening or enrollment, even if HIV infection is not confirmed.
* Past or current participation in HIV vaccine or HIV broadly neutralizing antibody study unless individual provides documentation of receipt of placebo (ie, not active product).
* Prior use of long-acting systemic pre-exposure prophylaxis (PrEP) (including cabotegravir (CAB) or islatravir studies).
* Acute viral hepatitis A or acute or chronic hepatitis B or C infection.
* Severe hepatic impairment or a history of or current clinical decompensated liver cirrhosis (eg, ascites, encephalopathy, variceal bleeding, etc).

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Where this trial is running

Birmingham, Alabama and 10 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Pre-Exposure Prophylaxis of HIV Infection
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.