Study to Compare an Oral Weekly Islatravir/Lenacapavir Regimen With Bictegravir/Emtricitabine/Tenofovir Alafenamide in Virologically Suppressed People With HIV-1
ISLEND-1
A Phase 3, Randomized, Double-blind, Active-controlled Study to Evaluate a Switch to an Oral Weekly Islatravir/Lenacapavir Regimen in People With HIV-1 Who Are Virologically Suppressed on Bictegravir/Emtricitabine/Tenofovir Alafenamide (B/F/TAF)
2 other identifiers
interventional
609
12 countries
106
Brief Summary
The goal of this clinical study is to learn about the safety and efficacy of switching to once weekly tablet of islatravir/lenacapavir (ISL/LEN) regimen versus continuing standard treatment of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) in people with human immunodeficiency virus (PWH) who are virologically suppressed (HIV-1 RNA levels \< 50 copies/mL) on B/F/TAF for ≥ 6 months prior to screening. The primary objective is to evaluate the efficacy of switching to oral weekly ISL/LEN tablet regimen versus continuing B/F/TAF in virologically suppressed PWH at Week 48.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Oct 2024
Longer than P75 for phase_3
106 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 4, 2024
CompletedFirst Posted
Study publicly available on registry
October 8, 2024
CompletedStudy Start
First participant enrolled
October 9, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 17, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2030
ExpectedApril 30, 2026
April 1, 2026
1.5 years
October 4, 2024
April 28, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Proportion of Participants with HIV-1 RNA ≥ 50 Copies/mL at Week 48 as Determined by the United States (US) Food and Drug Administration (FDA)-Defined Snapshot Algorithm
Week 48
Secondary Outcomes (6)
Proportion of Participants With HIV-1 RNA ≥ 50 Copies/mL at Week 96 as Determined by the US FDA-Defined Snapshot Algorithm
Week 96
Proportion of Participants with HIV-1 RNA < 50 Copies/mL at Weeks 48 as Determined by the US FDA-Defined Snapshot Algorithm
Week 48
Proportion of Participants with HIV-1 RNA < 50 Copies/mL at Weeks 96 as Determined by the US FDA-Defined Snapshot Algorithm
Week 96
Change From Baseline in Cluster of Differentiation 4 (CD4) T-Cell Count at Weeks 48
Week 48
Change From Baseline in CD4 T-Cell Count at Weeks 96
Week 96
- +1 more secondary outcomes
Study Arms (3)
Blinded Phase: ISL/LEN + Placebo-to-Match (PTM) B/F/TAF
EXPERIMENTALParticipants will receive an initial dose of ISL/LEN (Dose A), followed by once weekly ISL/LEN (Dose B) from Day 8 onwards up to Week 96. Participants will also receive PTM B/F/TAF once daily from Day 1 up to Week 96.
Blinded Phase: PTM ISL/LEN + B/F/TAF
EXPERIMENTALParticipants will receive an initial dose of PTM ISL/LEN (Dose A), followed by once weekly PTM ISL/LEN (Dose B) from Day 8 onwards up to Week 96. Participants will also receive B/F/TAF (50/200/25 mg) once daily up from Day 1 up to Week 96.
Open- Label Extension (OLE) Phase
EXPERIMENTALAfter the end of Blinded Phase at Week 96, if safety and efficacy of ISL/LEN are demonstrated following review of unblinded data, all participants will be given an option to enter the open-label extension phase to receive ISL/LEN in an extension phase until ISL/LEN becomes available or until the sponsor elects to discontinue the study, whichever occurs first. Participants receiving ISL/LEN and PTM B/F/TAF during the blinded phase will continue to take ISL/LEN weekly. Participants receiving B/F/TAF and PTM ISL/LEN during the blinded phase will take an initial dose of ISL/LEN (Dose A), followed by once weekly ISL/LEN (Dose B) from Day 8 onwards.
Interventions
Tablet administered orally
Eligibility Criteria
You may qualify if:
- HIV-1 RNA \< 50 copies/mL for ≥ 6 months before screening, as documented by:
- One HIV-1 RNA \< 50 copies/mL immediately preceding the 24 week period prior to screening.
- Within 24 weeks prior to screening, if HIV-1 RNA results are available, all levels must be \< 50 copies/mL.
- During the 6 to 12 months period prior to screening, transient detectable viremia ≥ 50 copies/mL is acceptable ("blip"), as long as it is not confirmed on 2 consecutive visits.
- Plasma HIV-1 RNA levels \< 50 copies/mL at screening.
- Individuals are receiving B/F/TAF for ≥ 6 months prior to screening and willing to continue until Day 1.
- Individuals assigned female at birth and of childbearing potential who engage in heterosexual intercourse must agree to use protocol-specified methods of contraception.
You may not qualify if:
- Prior virologic failure.
- Prior use of, or exposure to ISL or LEN.
- Active, serious infections requiring parenteral therapy within 30 days before randomization.
- Active tuberculosis infection.
- Acute hepatitis within 30 days before randomization.
- Hepatitis B virus (HBV) infection as determined below at the screening visit:
- Positive HBV surface antigen OR
- Positive HBV core antibody and negative HBV surface antibody. Note: individuals found to be susceptible to HBV infection (eg negative hepatitis B surface antibody at the screening visit, regardless of prior HBV vaccination history) should be recommended to receive HBV vaccination.
- Active hepatitis C virus (HCV) coinfection, defined as detectable HCV RNA. Note: individuals with prior/inactive HCV infection (defined as undetectable HCV RNA) may be enrolled.
- Any of the following laboratory values at screening:
- Creatinine clearance (CLcr) ≤ 30 mL/min according to the Cockcroft-Gault formula
- Alanine aminotransferase \> 5 x upper limit of normal (ULN)
- Direct bilirubin \> 1.5 x ULN
- Platelets \< 50,000/μL
- Hemoglobin \< 8.0 g/dL
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Gilead Scienceslead
- Merck Sharp & Dohme LLCcollaborator
Study Sites (106)
University of Alabama at Birmingham
Birmingham, Alabama, 35294, United States
Pueblo Family Physicians
Phoenix, Arizona, 85015, United States
Kaiser Permanente Southern California
Los Angeles, California, 90027, United States
Ruane Clinical Research Group, Inc
Los Angeles, California, 90036, United States
Mills Clinical Research
Los Angeles, California, 90069, United States
BIOS Clinical Research
Palm Springs, California, 92262, United States
Optimus Medical Group
San Francisco, California, 94102, United States
Vivent Health
Denver, Colorado, 80246, United States
University of Colorado- Anschutz Medical Campus - PPDS
Denver, Colorado, 80262, United States
Yale University
New Haven, Connecticut, 06510, United States
Georgetown University
Washington D.C., District of Columbia, 20007, United States
Whitman-Walker Health
Washington D.C., District of Columbia, 20009, United States
CAN Community Health
Fort Lauderdale, Florida, 33316, United States
Midway Immunology and Research Center
Ft. Pierce, Florida, 34982, United States
CAN Community Health
Miami Gardens, Florida, 33055, United States
Midland Research Group, Inc.
Oakland Park, Florida, 33334, United States
Orlando Immunology Center
Orlando, Florida, 32803, United States
AHF (AIDS Healthcare Foundation) - Pensacola Research
Pensacola, Florida, 32504, United States
CAN Community Health
Sarasota, Florida, 34237, United States
St. Josephs Comprehensive Research Institute
Tampa, Florida, 33607, United States
Emory University
Atlanta, Georgia, 30308, United States
Infectious Disease Specialists of Atlanta
Decatur, Georgia, 30033, United States
Mercer University
Macon, Georgia, 31201, United States
Chatham CARE Center
Savannah, Georgia, 31401, United States
Howard Brown Health
Chicago, Illinois, 60613, United States
Indiana University School of Medicine
Indianapolis, Indiana, 46202, United States
The Brigham and Women's Hospital, Inc.
Boston, Massachusetts, 02115, United States
Boston Medical Center
Boston, Massachusetts, 02118, United States
Community Research Initiative
Boston, Massachusetts, 02129, United States
Be Well Medical Center
Berkley, Michigan, 48072, United States
Trinity Health
Grand Rapids, Michigan, 49503, United States
KC CARE Health Center
Kansas City, Missouri, 64111, United States
ID CARE
Hillsborough, New Jersey, 08844, United States
Saint Michael's Medical Center
Newark, New Jersey, 07102, United States
South Jersey Infectious Disease
Somers Point, New Jersey, 08244, United States
AXCES Research Group - Albuquerque
Santa Fe, New Mexico, 87505, United States
Brooklyn Clinical Research Center
Brooklyn, New York, 11226, United States
New York Presbyterian Hospital
Flushing, New York, 11355, United States
Jacobi Medical Center
The Bronx, New York, 10461, United States
Montefiore Medical Center
The Bronx, New York, 10467, United States
CTRC University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, 27599, United States
Atrium Health Infectious Disease Kenilworth
Charlotte, North Carolina, 28207, United States
Duke University
Durham, North Carolina, 27710, United States
Brody School of Medicine at East Carolina University Adult Specialty Care
Greenville, North Carolina, 27858, United States
Rosedale Health and Wellness
Huntersville, North Carolina, 28078, United States
University of Cincinnati
Cincinnati, Ohio, 45267, United States
MetroHealth Medical Center
Cleveland, Ohio, 44109, United States
Ohio State University
Columbus, Ohio, 43210, United States
Prisma Health/USC
Columbia, South Carolina, 29203, United States
Central Texas Clinical Research
Austin, Texas, 78705, United States
North Texas Infectious Diseases Consultants
Dallas, Texas, 75246, United States
AXCES Research Group, LLC
El Paso, Texas, 79902, United States
Texas Centers for Infectious Disease Associates
Fort Worth, Texas, 76104, United States
The Crofoot Research Center, INC.
Houston, Texas, 77098, United States
DCOL Center for Clinical Research
Longview, Texas, 75605, United States
AXCES Research Group, LLC
Salt Lake City, Utah, 84102, United States
Clinical Alliance for Research & Education - Infectious Diseases, LLC (CARE-ID)
Annandale, Virginia, 22003, United States
Peter Shalit MD
Seattle, Washington, 98104, United States
MultiCare Institute for Research & Innovation
Spokane, Washington, 99202, United States
University of Wisconsin-Madison
Madison, Wisconsin, 53705, United States
Fundacion Huesped
Buenos Aires, 1202, Argentina
Helios Salud S.A.
Buenos Aires, 1425, Argentina
East Sydney Doctors
Darlinghurst, New South Wales, 2010, Australia
St Vincent's Hospital
Darlinghurst, New South Wales, 2010, Australia
Taylor Square Private Clinic
Surry Hills, New South Wales, 2010, Australia
Monash Health
Clayton, Victoria, 3168, Australia
Prahran Market Private Clinic
South Yarra, Victoria, 3141, Australia
Clinique de médecine Urbaine du Quartier Latin
Montreal, H2L 0B1, Canada
McGill University Health Centr
Montreal, H4A 3J1, Canada
Spectrum Health
Vancouver, V6Z 2T1, Canada
CHU Bordeaux - Hopital Saint André
Bourdeaux, 33075, France
AP-HP-Hopital Bicétre
Le Kremlin-Bicêtre, 94270, France
Assistance Publique Hopitaux de Marseille - Hopital Sainte Marguerite
Marseile, 13009, France
CHU Nice - Hopital Archet I
Nice, 6203, France
EPIMED GmbHGesellschaft fur klinische und epidemiologische Forschung in Berlin
Berlin, 10787, Germany
University Hospital Bonn, Medizinische und Poliklink I, Immunologische Studienambulanz
Bonn, 53127, Germany
Uniklinik Kéin, Innere Medizin |, Klinisches Studienzentrum Infektiologle, Clinical Trials Unit for Infectious Diseases(CTU-ID), ISZ Geb. 80
Cologne, 50924, Germany
Universitatsmedizin Essen, Universitatsklinikum Essen, Klinik Dermatologie, Venerologie und Allergologie,, HPSTD-Ambulanz
Essen, 45122, Germany
ICH Study Center GmbH & Co.KG
Hamburg, 20146, Germany
Chiba University Hospital
Chiba, Japan
National Hospital Organization Nagoya Medical Center
Nagoya, 460-0001, Japan
University of the Ryukyus Hospital
Okinawa, Japan
Osaka City General Hospital
Osaka, 534-0021, Japan
National Hospital Organization Osaka National Hospital
Osaka Fu, 540-0006, Japan
Tokyo Medical University Hospital
Tokyo, 160-0023, Japan
Japan Institute for Health Security National Center for Global Health and Medicine
Tokyo, 162-8655,, Japan
Clinical Research Puerto Rico
San Juan, PR, 00909, Puerto Rico
University of Puerto Rico School of Medicine
San Juan, PR, 00935, Puerto Rico
Complexo Hospitalario Universitario da Coruna
A Coruña, 15006, Spain
Hospital Universitario Vall d' Hebron
Barcelona, 08035, Spain
Hospital Clinic Barcelona
Barcelona, 08036, Spain
Hospital Universitario Regional de Malaga
Málaga, 29010, Spain
Inselspital
Bern, 3010, Switzerland
Centre Hospitalier Universitaire Vaudois
Lausanne, 1011, Switzerland
Universitaetsspital Zuerich
Zurich, 8091, Switzerland
Kaohsuing Medical University Hospital
Kaohsiung City, 80756, Taiwan
Kaohsuing Veterans General Hospital
Kaohsiung City, 81362, Taiwan
Far Eastern Memorial Hospital
New Taipei City, 22060, Taiwan
National Taiwan University Hospital
Taipei, 10002, Taiwan
Taoyuan General Hospital
Taoyuan City, 33004, Taiwan
Hawthorn House, Birmingham Heartlands Hospital (University Hospitals Birmingham NHS Foundation Trust)
Birmingham, B9 5SS, United Kingdom
Clinical Research Facility (University Hospitals Sussex NHS Foundation Trust)
Brighton, BN2 3EW, United Kingdom
Grahame Hayton Unit, Ambrose King Centre, Royal London Hospital (Barts Health NHS Trust)
London, E1 1BB., United Kingdom
Royal Free Hospital (Royal Free London NHS Foundation Trust)
London, NW3 2QG, United Kingdom
Clinical Research Facility, 1st Floor, St Stephen's Centre, Chelsea and Westminster Hospital (Chelsea and Westminster Hospital NHS Foundation Trust)
London, SW10 9TH, United Kingdom
Mortimer Market Centre (Central and North West London NHS Foundation Trust)
London, WC1E 6JB, United Kingdom
Related Links
MeSH Terms
Interventions
Study Officials
- STUDY DIRECTOR
Gilead Study Director
Gilead Sciences
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 4, 2024
First Posted
October 8, 2024
Study Start
October 9, 2024
Primary Completion
April 17, 2026
Study Completion (Estimated)
August 1, 2030
Last Updated
April 30, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share