U.S. CLINICAL TRIALS BEGIN FOR TWICE-YEARLY HIV PREVENTION INJECTION

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U.S. Department of Health and Human Services

NATIONAL INSTITUTES OF HEALTH NIH News

National Institute of Allergy and Infectious Diseases (NIAID) <https://www.niaid.nih.gov/>

For Immediate Release: Tuesday, June 4, 2024

CONTACT: NIAID News & Science Writing Branch,(301) 402-1663, <email:niaidnews@xxxxxxxxxxxxx>

 

MEDIA AVAILABILITY

 

U.S. CLINICAL TRIALS BEGIN FOR TWICE-YEARLY HIV PREVENTION INJECTION

Studies will focus on priority populations underrepresented in HIV clinical research

 

WHAT:

 

Two clinical trials have launched to examine a novel long-acting form of HIV pre-exposure prophylaxis (PrEP) in cisgender women and people who inject drugs. The mid-stage studies will assess the safety, acceptability, and pharmacokinetic (how a drug moves through the body) of lenacapavir, an antiretroviral drug administered by injection every six months. The studies are sponsored and funded by Gilead Sciences, Inc., and implemented through the HIV Prevention Trails Network (HPTN). The HPTN is supported by grants from the National Institutes of Health’s (NIH) National Institute of Allergy and Infectious Diseases (NIAID), with scientific collaboration on this study and others from the National Institute on Drug Abuse (NIDA) as well as co-funding from NIDA and other NIH institutes.

 

Lenacapavir is already approved by the Food and Drug Administration for HIV treatment, in combination with other antiretroviral therapy, of heavily treatment-experienced individuals, whose HIV infections cannot be successfully treated with other available treatments due to resistance, intolerance, or safety considerations with other drugs and developed multidrug resistance. Lenacapavir is the first of a class of drugs called capsid inhibitors to be FDA-approved for treating HIV infection. It is the first long-acting injectable to be offered with administration just once every six months. Cisgender women—people who self-identify as female and were assigned female sex at birth—and people who inject drugs accounted for 18% and 7% of new HIV diagnoses in the United States in 2021, respectively. Both population groups have been underrepresented in HIV clinical studies, as have transgender people, pregnant people and U.S. communities of color. Both trials complement ongoing large efficacy studies and are intended to provide insights on how these two priority populations experience lenacapavir-based HIV PrEP. 

 

The studies will take place at HPTN sites in the United States and enroll people who might benefit from taking PrEP. The first trial will enroll cisgender women, with a focus on making enrollment accessible to women who self-identify as Black and/or Latina. The second trial will enroll a diverse group of people who inject drugs. In both studies, participants will be randomly assigned to receive either injectable lenacapavir or an FDA-approved PrEP formulation consisting of oral tenofovir disoproxil fumarate and emtricitabine. Participants’ health will be monitored closely throughout the study. Participants will provide laboratory samples and give qualitative feedback on their experience taking each form of PrEP.

 

The studies will add important clinical data to a global manufacturer-led clinical development program for lenacapavir as HIV PrEP. NIH is supporting the implementation of these two studies through its clinical trials networks to help ensure the meaningful inclusion of diverse and representative populations in clinical research, so that everyone can contribute to scientific progress and benefit from its applications.

 

For more information about these trials, please visit ClinicalTrials.gov study identifiers NCT06101329 and NCT06101342.

 

WHO:

 

Sheryl Zwerski, D.N.P., director of the Prevention Sciences Program in NIAID’s Division of AIDS, is available to discuss these studies.

 

NIAID conducts and supports research—at NIH, throughout the United States, and worldwide—to study the causes of infectious and immune-mediated diseases, and to develop better means of preventing, diagnosing and treating these illnesses. News releases, fact sheets and other NIAID-related materials are available on the NIAID website.

 

About the National Institutes of Health (NIH): NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit www.nih.gov.

 

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