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Bictegravir

Phase 3

HIV-1-infection | Small molecule | Infectious Disease |Gilead Sciences, Inc.|Last Updated: Nov 5, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindACTIVE_CONTROLLEDDMCBiomarker
Total Trials3
Total Enrollment1,366
FDA Designations
No designations recorded
Clinical Trials (3)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04416906A Test and Treat Strategy in New HIV Diagnosis.PHASE3 COMPLETED 100Oct 5, 2020May 11, 2023Sep 18, 20231 Spain
NCT06333808Study to Compare Bictegravir/Lenacapavir Versus Current Therapy in People With HIV-1 Who Are Successfully Treated With BiktarvyPHASE3 ACTIVE NOT_RECRUITING 577Mar 25, 2024Dec 1, 2029Nov 5, 2025104 United States, Argentina +12
NCT05502341Study to Compare Bictegravir/Lenacapavir Versus Current Therapy in People With HIV-1 Who Are Successfully Treated With a Complicated RegimenPHASE2 ACTIVE NOT_RECRUITING 689Aug 16, 2022Jul 1, 2028Oct 14, 202594 United States, Argentina +13
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Study Endpoints
Primary Endpoints
Proportion of patients non-eligible to receive any of the antiretroviral regimens within the first week since the HIV confirmation) at week 4
week 4

Patients will be considered non-eligible if they meet one or more of the following creiteria at week 4: * Presence of HLA-B\* 5701 or lack of HLA test * Presence of HIV genotypic resistance mutations to at least one class of ARV drug that decrease efficacy of antiretroviral treatment * CD4 count \< 200 cells/mm3 * Viral load \> 100.000 copies/mL * Comorbidities such as: Osteopenia measured by DXA (T score less than 1), medical history of cardiovascular risk measured by Framingham risk score \> 10% at 10 years, Kidney function (eGFR \<50mL/min), * Concomitant medication that can cause potential interactions with ARV (evaluating the risk of drug-drug interactions for drugs no totally safe (green colour) using the Liverpool website for DDI) * Hepatitis B (HBV) coinfection or lack of serology

Proportion of Participants with HIV-1 RNA ≥ 50 copies/mL at Week 48 as Determined by the US FDA-defined Snapshot Algorithm
Week 48
Phase 2: Proportion of Participants With HIV-1 RNA ≥ 50 Copies/mL at Week 24 as Determined by the US FDA-defined Snapshot Algorithm
Week 24
Phase 3: Proportion of Participants With HIV-1 RNA ≥ 50 Copies/mL at Week 48 as Determined by the US FDA-defined Snapshot Algorithm
Week 48
Secondary Endpoints
Proportion of patients who start Biktarvy within the first week since HIV confirmation at the first visit at the HIV unit.
week 4
Days since first HIV test was performed until Biktarvy is initiated.
week 4
Days since HIV confirmation (first visit at the HIV unit) until Biktarvy is initiated.
week 4
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
BiktarvyEXPERIMENTALThis is a fixed dose combination regimen containing 50 mg of Bictegravir + 200 mg of Emtricitabine + 25 mg of Tenofovir alafenamide.
Treatment Group 1: Bictegravir (BIC)/ Lenacapavir (LEN) (75/50 mg) + PTM B/F/TAFEXPERIMENTALBlinded Phase: Participants will switch from bictegravir/emtricitabine/tenofovir (B/F/TAF) FDC tablets to BIC/LEN (75/50 mg) FDC tablets and placebo-to-match (PTM) B/F/TAF. Participants will receive a 2-day oral loading dose of LEN 600 mg on Day 1 and on Day 2, in addition to the daily doses of BIC/LEN FDC tablet starting on Day 1 up to end of blinded treatment (EBT) visit. Open-label (OL) Phase: Following treatment in the Blinded Phase, participants from Treatment Group 1 will receive BIC/LEN FDC tablets through Week 48 in the Open-label Phase. At the OL Week 48 visit, participants from Treatment Group 1 will be given the option to continue to receive BIC/LEN FDC tablets until the conclusion of the OL Phase.
Treatment Group 2: B/F/TAF (50/200/25 mg) + PTM BIC/LENEXPERIMENTALBlinded Phase: Participants will continue with their B/F/TAF (50/200/25 mg) FDC tablets and start PTM BIC/LEN tablets on Day 1. Participants will receive PTM LEN tablets for 2 days (2 PTM LEN tablets on Day 1 and on Day 2. The blinded phase will continue until the EBT visit. Open Label Phase: Participants in Treatment Group 2 who complete the EBT visit will be given the option to enter the OL phase to receive BIC/LEN FDC tablets until the conclusion of the OL Phase.
Phase 2: Bictegravir (BIC) 75 mg + Lenacapavir (LEN) 25 mgEXPERIMENTALParticipants will switch from their stable baseline regimen (SBR) to a regimen of BIC 75 mg + LEN 25 mg. Participants will receive a 2-day loading dose regimen of LEN 600 mg, in addition to the daily doses of BIC 75 mg + LEN 25 mg starting on Day 1 up to the end of randomized treatment (ERT) visit, participants will be treated for at least 24 weeks during the Randomized Period. Following Randomized Period, the participants will have an option to participate in an Extension Period to receive BIC/LEN 75 mg/50 mg fixed dose combination (FDC).
Phase 2: BIC 75 mg + LEN 50 mgEXPERIMENTALParticipants will switch from their SBR to a regimen of BIC 75 mg + LEN 50 mg. Participants will receive a 2-day loading dose regimen of LEN 600 mg, in addition to the daily doses of BIC 75 mg + LEN 50 mg starting on Day 1 up to the ERT visit, participants will be treated for at least 24 weeks during the Randomized Period. Following Randomized Period, the participants will have an option to participate in an Extension Period to receive BIC/LEN 75 mg/50 mg FDC.
Phase 2: Stable Baseline Regimen (SBR)ACTIVE_COMPARATORParticipants will continue with their SBR per prescription for up to the ERT visit, participants will be treated for at least 24 weeks during the Randomized Period. Following Randomized Period, the participants will have an option to participate in an Extension Period to receive BIC/LEN 75 mg/50 mg FDC.
Phase 3: BIC/LEN 75 mg/50 mg Fixed-dose Combination (FDC)EXPERIMENTALParticipants will switch from their SBR to a regimen of BIC/LEN 75 mg/50 mg FDC. Participants will receive a 2-day loading dose regimen of LEN 600 mg, in addition to the daily doses of BIC/LEN 75 mg/50 mg FDC starting on Day 1 up to the ERT visit, participants will be treated for at least 48 weeks during the Randomized Period. Following Randomized Period, the participants will have an option to participate in an Extension Period to receive BIC/LEN 75 mg/50 mg FDC.
Phase 3: Stable Baseline RegimenACTIVE_COMPARATORParticipants will continue with their SBR per prescription for up to the ERT visit, participants will be treated for at least 48 weeks during the Randomized Period. Following Randomized Period, the participants will have an option to participate in an Extension Period to receive BIC/LEN 75 mg/50 mg FDC.
Interventions
NameTypeDescription
BiktarvyDRUGOnce daily fixed dose combination regimen of Biktarvy will be evaluated as a rapid treatment strategy in newly HIV diagnosed patients HIV diagnosed patients that come for the first time to the Hospital Clínic HIV Unit
BictegravirDRUGTablets administered orally without regard to food
LenacapavirDRUGTablets administered orally without regard to food
B/F/TAFDRUGTablets administered orally without regard to food
Placebo to match B/F/TAFDRUGTablets administered orally without regard to food
Placebo to match BIC/LENDRUGTablets administered orally without regard to food
BIC/LEN FDCDRUGTablets administered orally without regard to food
Stable Baseline RegimenDRUGSBR will include a combination of antiretroviral (ARV) regimen. ARV regimen may include the following, except for participants taking a single tablet regimen or taking a complete parenteral regimen (Cabenuva). * Nucleos(t)ide Reverse Transcriptase Inhibitors: * Abacavir * Emtricitabine * Lamivudine * Tenofovir alafenamide * Tenofovir disoproxil fumarate * Zidovudine * Non-Nucleosite Reverse Transcriptase Inhibitors: * Delavirdine * Efavirenz * Nevirapine * Rilpivirine * Doravirine * Integrase Inhibitors: * Bictegravir * Cabotegravir * Dolutegravir * Elvitegravir * Raltegravir * Protease Inhibitors: * Atazanavir * Darunavir * Fosamprenavir * Indinavir * Lopinavir * Nelfinavir * Saquinavir * Tipranavir * Chemokine Co-receptor 5 (CCR5) Antagonist: * Maraviroc * Fusion Inhibitors: * Enfuvirtide * gp120 Attachment Inhibitor: * Fostemsavir * Anti-CD4 Monoclonal Antibodies: * Ibalizumab-uiyk
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Age ≥ 18 years old. 2. Having confirmed HIV-1 positive test. 3. Patients not previously treated with antiretroviral treatment (post-exposure prophylaxis will be allowed if not done in the previous 6 months). 4. Clinically stable patients, in the opinion of the investigator, a...

Countries:SpainUnited StatesArgentinaAustraliaCanadaDominican RepublicGermanyItalyJapanMexicoPuerto RicoSouth KoreaTaiwanUnited KingdomFranceSouth Africa
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT05502341primaryCompletionDate: changed
LOWMay 26, 2026NCT06333808primaryCompletionDate: changed
LOWMay 24, 2026NCT06333808studyFirstPostDate: changed
LOWMay 24, 2026NCT05502341studyFirstPostDate: changed