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Pre-Exposure Prophylaxis Study of Lenacapavir in Cisgender Men, Transgender Women, Transgender Men, and Gender Nonbinary People at Risk for HIV Infection (PURPOSE 2)

11 septembre 2026 mis à jour par: Gilead Sciences

Une étude de phase 3, à double insu, multicentrique et randomisée pour évaluer l'efficacité et l'innocuité du lénacapavir à action prolongée sous-cutané deux fois par an pour la prophylaxie pré-exposition au VIH chez les hommes cisgenres, les femmes transgenres, les hommes transgenres et les personnes de genre non binaire ≥ 16 ans Âge Qui ont des rapports sexuels avec des partenaires masculins et sont à risque d'infection par le VIH

The goal of this study is to evaluate the efficacy of the study drugs, lenacapavir (LEN) in preventing HIV infection, in participants ≥ 16 years of age who have condomless receptive anal sex with partners assigned male at birth and are at risk for HIV-1 infection.

The primary objective of this study is to evaluate the efficacy of LEN for HIV-1 pre-exposure prophylaxis (PrEP) in participants ≥ 16 years of age who have condomless receptive anal sex with partners assigned male at birth at risk of HIV-1 infection.

Aperçu de l'étude

Type d'étude

Interventionnel

Inscription (Réel)

3292

Phase

  • Phase 3

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

      • Cape Town, Afrique du Sud, 7925
        • Desmond Tutu Health Foundation
      • Johannesburg, Afrique du Sud, 2038
        • Wits Reproductive Health and HIV Institute (Wits RHI)
      • Pretoria, Afrique du Sud, 87
        • The Aurum Institute: Pretoria Clinical Research Centre
      • Soshanguvhe, Afrique du Sud, 0152
        • Setshaba Research Centre
      • Tembisa, Afrique du Sud, 1632
        • The Aurum Institute Tembisa CRC, Clinic 4
      • Vincent, Afrique du Sud, 5217
        • FPD-DTHF Ndevana Commuity Research Site
      • Buenos Aires, Argentine, 1072
        • Hospital General de Agudos JM Ramos Mejia
      • Buenos Aires, Argentine, B7600
        • Instituto de Investigaciones Clinicas Mar del Plata
      • Buenos Aires, Argentine, 1202
        • Fundacion Huesped
      • Belo Horizonte - MG, Brésil, 30130-100
        • Unidade de Pesquisa Clinica em Vacinas (UPqVac) da Faculdade de Medicina da Universidade
      • Canela-Salvador, Brésil, 40110-060
        • Fundação Bahiana de Infectologia
      • Manauas, Brésil, 69040-000
        • Fundação de Medicina Tropical Doutor Heitor Vieira Dourado / Fundação Medicina Tropical do Amazonas - FMT/IMT/AM
      • Nova Iguaçu, Brésil, 26030-380
        • Hospital General de Nova Iguaçu - HGNI
      • Porto Alegre, Brésil, RS 91350 200
        • Grupo Hospitalar Conceição/ Hospital Nossa Senhora da Conceição S.A.
      • Rio de Janeiro, Brésil, 21040-360
        • Instituto Nacional de Infectologia Evandro Chagas / Fundação Oswaldo Cruz - INI FIOCRUZ
      • São Paulo, Brésil, 01246-903
        • Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
      • São Paulo, Brésil, 04121-000
        • Centro de Referência e Treinamento DST/AIDS
      • São Paulo, Brésil, 06519-332
        • Center for Management and Research. SPDM-Paulista Association for the Development of Medicine-Hospital São Paulo/Federal
      • Guadalajara C.P., Mexique, 44160
        • Centro de Investigacion Farmaceutica Especializada de Occidente S.C.
    • PR
      • San Juan, PR, Porto Rico, 00717
        • Ararat Research Center
      • San Juan, PR, Porto Rico, 00909
        • Centro Ararat- San Juan
      • Barranco, Pérou, 15063
        • Asociacion Civil Impacta Salud y Educacion - Sede Barranco
      • Callao, Pérou, 7006
        • Instituto de Medicina Tropical "Daniel Alcides Carrion", Facultad de Medicina Humana, UNMSM
      • Iquitos, Pérou
        • Asociacion Civil Selva Amazonica
      • Lima, Pérou, 15001
        • Via Libre
      • Lima, Pérou, 15088
        • Asociacion Civil Impacta Salud y Educacion - Sede San Miguel
      • Bangkok, Thaïlande, 10330
        • King Chulalongkorn Memorial Hospital
      • Bangkok, Thaïlande, 10400
        • Ramathibodi Hospital, Mahidol University
      • Bangkok, Thaïlande, 10330
        • Institute of HIV Research and Innovation
      • Bangkok, Thaïlande, 10330
        • The HIV Netherlands Australia Thailand Research Collaboration (HIV-NAT), Thai Red Cross AIDS research Centre
      • Chiang Mai, Thaïlande, 50200
        • Research Institute for Health Sciences, Chiang Mai University
      • Khon Kaen, Thaïlande, 40002
        • Srinagarind Hospital, Khon Kaen University
      • Nonthaburi, Thaïlande, 11000
        • Bamrasnaradura Infectious Disease Institute
    • Alabama
      • Birmingham, Alabama, États-Unis, 35233
        • UAB Sexual Health Research Clinic
    • California
      • Loma Linda, California, États-Unis, 92354
        • Loma Linda University Clinical Trial Center Clinic
      • Los Angeles, California, États-Unis, 90069
        • Mills Clinical Research
      • Los Angeles, California, États-Unis, 90036
        • Ruane Clinical Research Group Inc.
      • Los Angeles, California, États-Unis, 90038
        • UCLA CBAM Vine Street Clinic
      • Los Angeles, California, États-Unis, 90059
        • Charles R. Drew University of Medicine and Science (CDU) - Clinical Translational Research Center (CTRC)
      • Los Angeles, California, États-Unis, 90502
        • The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
      • Palm Springs, California, États-Unis, 92262
        • BIOS Clinical Research
      • San Diego, California, États-Unis, 92103
        • UCSD Anti Viral Research Center
      • San Francisco, California, États-Unis, 94102
        • Optimus Medical Group
      • San Francisco, California, États-Unis, 94102
        • Bridge HIV at the San Francisco Department of Public Health
    • Colorado
      • Aurora, Colorado, États-Unis, 80045
        • University of Colorado Clinical and Translational Research Centers (CTRC)
    • Connecticut
      • New Haven, Connecticut, États-Unis, 06510
        • Yale University, School of Medicine
    • District of Columbia
      • Washington D.C., District of Columbia, États-Unis, 20009
        • Whitman-Walker Institute Inc.
      • Washington D.C., District of Columbia, États-Unis, 20017
        • Washington Health Institute
    • Florida
      • Fort Lauderdale, Florida, États-Unis, 33308
        • Therafirst Medical Center
      • Fort Lauderdale, Florida, États-Unis, 33316
        • Gary Richmond, MD, PA
      • Ft. Pierce, Florida, États-Unis, 34982
        • Midway Immunology & Research Center, LLC
      • Jacksonville, Florida, États-Unis, 32207
        • CAN Community Health Clinic
      • Miami, Florida, États-Unis, 33136
        • University of Miami Miller School of Medicine Division of Infectious Disease Research - Converge Miami
      • Miami Gardens, Florida, États-Unis, 33055
        • CAN Community Health
      • Orlando, Florida, États-Unis, 32803
        • Orlando Immunology Center
      • Sarasota, Florida, États-Unis, 34237
        • CAN Community Health
    • Georgia
      • Atlanta, Georgia, États-Unis, 30303
        • Emory University
      • Atlanta, Georgia, États-Unis, 30308
        • Emory University Hospital Midtown Infectious Disease Clinic
      • Atlanta, Georgia, États-Unis, 30030
        • The Hope Clinic at Emory University
    • Illinois
      • Chicago, Illinois, États-Unis, 60613
        • Howard Brown Health Center
      • Chicago, Illinois, États-Unis, 60612
        • RMR Core Center
      • Chicago, Illinois, États-Unis, 60612
        • University of Illinois at Chicago, Department of Medicine, Division of Infectious Diseases, Project WISH
    • Indiana
      • Indianapolis, Indiana, États-Unis, 46202
        • Indiana University Infectious Diseases Research
    • Kentucky
      • Lexington, Kentucky, États-Unis, 40503
        • Baptist Health Lexington
      • Louisville, Kentucky, États-Unis, 40241
        • Norton Infectious Disease Specialists
    • Louisiana
      • New Orleans, Louisiana, États-Unis, 70119
        • LSU-CrescentCare Sexual Health Center- New Orleans Community Health Center
    • Maryland
      • Baltimore, Maryland, États-Unis, 21287
        • Johns Hopkins University School of Medicine
    • Massachusetts
      • Boston, Massachusetts, États-Unis, 02215
        • The Fenway Institute
    • Michigan
      • Berkley, Michigan, États-Unis, 48072
        • Be Well Medical Center
      • Detroit, Michigan, États-Unis, 48202
        • Henry Ford Hospital
    • Mississippi
      • Jackson, Mississippi, États-Unis, 39202
        • Open Arms Healthcare Center
    • Missouri
      • Kansas City, Missouri, États-Unis, 64111
        • KC CARE Health Center
    • New Jersey
      • Newark, New Jersey, États-Unis, 07102
        • St. Michael's Medical Center
      • Somers Point, New Jersey, États-Unis, 08244
        • South Jersey Infectious Disease
    • New York
      • New York, New York, États-Unis, 10029
        • Icahn School of Medicine at Mount Sinai- Mount Sinai Downtown
    • North Carolina
      • Chapel Hill, North Carolina, États-Unis, 27514
        • NC TraCS Institute - CTRC; University of North Carolina at Chapel Hill
      • Greensboro, North Carolina, États-Unis, 27401
        • Cone Health/Regional Center for Infectious Disease Research Center
      • Winston-Salem, North Carolina, États-Unis, 27103
        • Wake Forest University Health Sciences
    • Ohio
      • Cincinnati, Ohio, États-Unis, 45267
        • University of Cincinnati
      • Columbus, Ohio, États-Unis, 43210
        • The Ohio State University Wexner Medical Center
    • Pennsylvania
      • Philadelphia, Pennsylvania, États-Unis, 19104
        • Penn Prevention Unit
      • Philadelphia, Pennsylvania, États-Unis, 19107
        • Philadelphia FIGHT Community Health Centers, Jonathan Lax Treatment Center
    • South Carolina
      • Charleston, South Carolina, États-Unis, 29425
        • Medical University of South Carolina, Infectious Disease Clinic
      • Columbia, South Carolina, États-Unis, 29203
        • Prisma Health-Midlands Clinical Research Unit
      • Greenville, South Carolina, États-Unis, 29605
        • Prisma Health Internal Medicine Clinic
    • Tennessee
      • Memphis, Tennessee, États-Unis, 38105
        • St Jude Children's Research Hospital
      • Memphis, Tennessee, États-Unis, 38103
        • Methodist University Hospital/University of Tennessee Health Science Center, Clinical Research Center
      • Nashville, Tennessee, États-Unis, 37208
        • Meharry Medical College Clinical and Transitional Research Center
    • Texas
      • Austin, Texas, États-Unis, 78705
        • Central Texas Clinical Research
      • El Paso, Texas, États-Unis, 79915
        • Centro San Vincente
      • Houston, Texas, États-Unis, 77098
        • The Crofoot Research Center, INC
      • Houston, Texas, États-Unis, 77009
        • UT Health Science Center at Houston
    • Washington
      • Seattle, Washington, États-Unis, 98104
        • Ofiice of Dr. Peter Shalit, MD

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

16 ans et plus (Enfant, Adulte, Adulte plus âgé)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Tout

La description

Key Inclusion Criteria:

Incidence Phase

  • CGM, TGW, TGM, and GNB who have condomless receptive anal sex with partners assigned male at birth and are at risk for HIV infection.

  • HIV-1 status unknown at screening and no prior HIV-1 testing within the last 3 months.

  • Sexually active with ≥ 1 partner assigned male at birth (condomless receptive anal sex) in the last 12 months and 1 of the following:

    • Condomless receptive anal sex with ≥ 2 partners in the last 12 weeks.
    • History of syphilis, rectal gonorrhea, or rectal chlamydia in the last 24 weeks.
    • Self-reported use of stimulants with sex in the last 12 weeks.

Randomized Phase

  • Negative local rapid fourth generation HIV-1/2 Ab/Ag, central fourth generation HIV-1/2 Ab/Ag, and HIV-1 RNA quantitative nucleic acid amplification testing (NAAT).
  • Estimated glomerular filtration rate (eGFR) ≥ 60 mL/min at screening according to the Cockcroft-Gault formula for creatinine clearance (CLcr).

Key Exclusion Criteria:

Incidence Phase

  • Prior use of HIV PrEP (including F/TDF or F/TAF) or HIV postexposure prophylaxis (PEP) in the past 12 weeks or any prior use of long-acting systemic PrEP (including cabotegravir or islatravir).
  • Prior recipient of an HIV vaccine or HIV broadly neutralizing antibody formulation.

Randomized Phase

  • Acute viral hepatitis A, B or C or evidence of chronic hepatitis B or C infection.
  • Severe hepatic impairment or a history of or current clinical decompensated liver cirrhosis.

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

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: La prévention
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Double

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Randomized Blinded Phase: LEN + Placebo-to-match (PTM) F/TDF

Participants will receive the following for up to approximately 52 weeks:

  • Subcutaneous (SC) lenacapavir (LEN) 927 mg every 26 weeks
  • Oral PTM Emtricitabine/Tenofovir Disoproxil Fumarate (F/TDF) once daily
  • Oral LEN 600 mg on Days 1 and 2

Participants will receive oral LEN if SC injections are not available.

Tablets administered orally without regard to food

Autres noms:
  • GS-6207

Administered via SC injections

Autres noms:
  • GS-6207; Yeztugo

Tablets administered orally

Expérimental: Randomized Blinded Phase: Placebo LEN + F/TDF

Participants will receive the following for up to approximately 52 weeks:

  • SC LEN placebo every 26 weeks
  • Oral F/TDF 200/300 mg once daily
  • PTM Oral LEN on Days 1 and 2

Participants will receive oral LEN placebo if SC injections are not available.

Tablets administered orally

Autres noms:
  • Truvada®

Administered via SC injections

Tablets administered orally

Expérimental: LEN Open-Label Extension (OLE) Phase

Participants will be offered entry into LEN OLE Phase, following completion of primary analysis, if LEN demonstrates acceptable safety and efficacy in the Randomized Blinded Phase.

Participants randomized to LEN will continue to receive SC LEN 927 mg, every 26 weeks (± 7 days), and have study visits every 13 weeks (± 7 days).

Participants randomized to F/TDF will switch to SC LEN 927 mg on OLE Day 1, Week 26 and every 26 weeks thereafter. Participants will also receive oral LEN 600 mg on OLE Days 1 and 2.

All participants in LEN OLE Phase will complete the phase, once LEN becomes available or the sponsor decides to discontinue the study, whichever happens first.

After completing LEN OLE Phase or study discontinuation, participants will transition to local PrEP, including LEN or other options. If a participant exits early, they will complete an early study drug discontinuation (ESDD), be referred to local PrEP services if needed, and have a 30-day follow-up visit.

Tablets administered orally without regard to food

Autres noms:
  • GS-6207

Administered via SC injections

Autres noms:
  • GS-6207; Yeztugo
Expérimental: Pharmacokinetic (PK) Tail Phase

Participants who prematurely discontinue study drug during the Randomized Blinded Phase and participants that were randomized to LEN who choose not to continue in the LEN OLE Phase will transition to the PK Tail Phase. Participants will receive oral F/TDF (or Emtricitabine/Tenofovir Alafenamide (F/TAF) for US participants only) once daily for 78 weeks to cover the PK tail and complete visits every 13 weeks (+/- 7 days).

Upon unblinding, participants who were randomized to F/TDF in the Randomized Blinded Phase who decline to participate in the LEN OLE Phase will complete the ESDD visit, transition to local HIV prevention services, and return for a 30-day follow-up visit.

Tablets administered orally

Autres noms:
  • Truvada®

F/TAF tablets administered orally once daily

Autres noms:
  • Découvrir

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Incidence Phase: Recent Infection Testing Algorithm (RITA) Estimate of the Background Human Immunodeficiency-1 Virus Infection Incidence Rate (bHIV) Per 100 Person Years (PY)
Délai: Incidence Phase Screening Visit (Day 1)

bHIV per 100 PY in the Incidence Phase was calculated using RITA. The RITA incorporated HIV-1 testing results and recency assay testing results to estimate the bHIV. Recency assay testing was performed for participants in the All Screened Set found to have HIV-1 infection at the Incidence Phase Screening Visit as defined below. Participants were considered to have recent HIV-1 infection if the normalized optical density (ODn) was below 1.5 threshold using the Sedia limiting antigen avidity enzyme immunoassay (LAg-EIA) and the HIV-1 RNA (viral load) was > 75 copies/mL of blood.

HIV-1 infection was defined as participants having at least one of the following central lab results at the Incidence Phase screening visit:

  • Positive HIV-1/2 differentiation Ab, OR
  • Positive HIV-1 ribonucleic acid (RNA) qualitative test, OR
  • HIV-1 RNA quantitative test ≥200 copies/mL.
Incidence Phase Screening Visit (Day 1)
Randomized Blinded Phase: HIV-1 Incidence Reported Per 100 PY for LEN Compared to Background HIV (bHIV, Participants in All Screened Set)
Délai: Up to 149 weeks

HIV-1 incidence per 100 PY for LEN was calculated as the number of participants who acquired HIV-1 divided by the total of a) for participants not diagnosed with HIV-1, sum of all duration of follow-up time in years, while at risk of HIV-1 infection (where a year is 365.25 days) and b) for participants diagnosed with HIV-1, sum of all duration of follow-up time up to confirmed HIV-1 diagnoses. HIV-1 diagnosis was determined by an HIV adjudication committee who reviewed potential HIV-1 infection events in the randomized participants. The committee, in a blinded, consistent, and unbiased manner, determined whether HIV test results confirmed HIV-1 infection and determined the date of diagnosis for each case, defined as the date of the earliest study visit with evidence of HIV infection considering both prospective HIV testing and back-testing of archived samples. bHIV incidence per 100 PY in All Screened Set was estimated as described in outcome measure#1.

Up to 149 weeks

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Randomized Blinded Phase: HIV-1 Incidence Reported Per 100 PY for LEN Compared to F/TDF
Délai: Up to 149 weeks

HIV-1 incidence per 100 PY was calculated as the number of participants who acquired HIV-1 divided by the total of a) for participants not diagnosed with HIV-1, sum of all duration of follow-up time in years, while at risk of HIV-1 infection (where a year is 365.25 days) and b) for participants diagnosed with HIV-1, sum of all duration of follow-up time up to confirmed HIV-1 diagnoses. HIV-1 diagnosis was determined by an HIV adjudication committee who reviewed potential HIV-1 infection events in the randomized participants. The committee, in a blinded, consistent, and unbiased manner, determined whether HIV test results confirmed HIV-1 infection and determined the date of diagnosis for each case, defined as the date of the earliest study visit with evidence of HIV infection considering both prospective HIV testing and back-testing of archived samples.

Up to 149 weeks
Randomized Blinded Phase: HIV-1 Incidence Among Participants Adherent to LEN
Délai: Up to 149 weeks

A participant was defined as adherent to LEN if they have received all per-protocol administrations of LEN within 28 weeks since the previous administration. The incidence of HIV-1 infection per 100 PY calculation is defined in outcome measure #2.

Up to 149 weeks
Randomized Blinded Phase: Percentage of Participants Experiencing Treatment-Emergent Adverse Events (TEAEs)
Délai: First dose date up to 184 weeks

An adverse event (AE) was any untoward medical occurrence in a clinical study participant administered a study drug that did not necessarily have a causal relationship with the treatment. TEAEs were defined as 1 or both of the following: Any AEs leading to premature discontinuation of study drug, or any AEs with an onset date on or after the study drug start date and no later than the last exposure date after permanent discontinuation of the study drug.

First dose date up to 184 weeks
Randomized Blinded Phase: Percentage of Participants Experiencing Grade 3 or Higher Laboratory Abnormalities
Délai: First dose date up to 184 weeks

Treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any post-baseline visit, up to and including the last exposure date for participants who permanently discontinued study drug, or the last available date in the database snapshot for participants who were still on treatment at the time of an analysis. The division of acquired immunodeficiency syndrome toxicity grading scale, Version 2.1 was used to assign toxicity grades (0 to 4) to laboratory results for analysis. Grade 0 included all values that do not meet the criteria for an abnormality of at least Grade 1. Grade 1 mild, Grade 2 moderate, Grade 3 severe, and Grade 4 potentially life-threatening. Percentages were rounded off.

First dose date up to 184 weeks

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Les enquêteurs

  • Directeur d'études: Gilead Study Director, Gilead Sciences

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

28 juin 2021

Achèvement primaire (Réel)

21 août 2024

Achèvement de l'étude (Estimé)

1 août 2028

Dates d'inscription aux études

Première soumission

28 mai 2021

Première soumission répondant aux critères de contrôle qualité

11 juin 2021

Première publication (Réel)

14 juin 2021

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

6 octobre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

11 septembre 2026

Dernière vérification

1 septembre 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

NON

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Oui

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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