Twice-Yearly HIV prevention shot shows promise in women
NCT ID NCT06101329
First seen Jun 26, 2026 · Last updated Aug 18, 2026 · Updated 2 times
Summary
This study tests a new long-acting injection called lenacapavir, given every 6 months, to prevent HIV in cisgender women in the US. About 253 women will receive either the injection or daily pills (Truvada) to compare how well the drug works in the body, its safety, and how acceptable it is. The goal is to see if a twice-yearly shot could be a convenient alternative to daily medication for HIV prevention.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- lenacapavir (injection and tablet) and emtricitabine/tenofovir disoproxil fumarate (Truvada)
- What this could lead to
- If successful, this could offer a convenient twice-yearly injection option for HIV prevention, reducing the need for daily pills.
- What could go wrong
- This is an early phase 2 study with only 253 women, so results may not apply to everyone. Side effects or low acceptability could limit its use.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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253 people
The number who actually took part.
- Started
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Nov 2023
- Expected to finish
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Jan 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Cornell Clinical Trials Unit, New York Presbyterian Hospital - Weill Cornell Medicine
New York, New York, 10010, United States
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Fenway Health
Boston, Massachusetts, 02215, United States
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George Washington University Medical Faculty Associates
Washington D.C., District of Columbia, 20037, United States
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Harlem Prevention Center CRS
New York, New York, 10027, United States
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ICAP at Columbia University - Bronx Prevention Center
The Bronx, New York, 10451, United States
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NC TraCS Institute - CTRC; University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, 27599, United States
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Penn Prevention Research Unit
Philadelphia, Pennsylvania, 19104, United States
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Ponce de Leon Center Clinical Research Site
Atlanta, Georgia, 30303, United States
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Rutgers New Jesey Medical School - Clinical Research Center
Newark, New Jersey, 07103, United States
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UAB, 1917 Research Clinic
Birmingham, Alabama, 35222, United States
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UCSD Antiviral Research Center (AVRC)
San Diego, California, 92103, United States
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