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Biktarvy

Phase 3

HIV-1 Infection | Small molecule | Infectious Disease |Gilead Sciences, Inc.|Last Updated: Aug 26, 2026

Target and mechanism

ModalitySmall molecule

Also known as Bictegravir, Treatment B

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials5
Total Enrollment837

FDA Designations

No designations recorded

Clinical trial landscape

Biktarvy · 14 trials · 5 indications

Phase 3 7Phase 2 2Phase 1 5
NCT04416906A Test and Treat Strategy in New HIV Diagnosis.HIV-1-infection
COMPLETED100 Analytics
NCT06333808Study to Compare Bictegravir/Lenacapavir Versus Current Therapy in People With HIV-1 Who Are Successfully Treated With BiktarvyHIV-1-infection
ACTIVE NOT_RECRUITING577 Analytics
NCT03631732Study to Evaluate Switching From a Regimen of Two Nucleos(t)Ide Reverse Transcriptase Inhibitors (NRTI) Plus a Third Agent to a Fixed Dose Combination (FDC) of Bictegravir/Emtricitabine/Tenofovir Alafenamide (B/F/TAF), in Virologically-Suppressed, HIV-1 Infected African American ParticipantsHIV-1 Infection
COMPLETED496 Analytics
NCT03547908Safety and Efficacy of Bictegravir/Emtricitabine/Tenofovir Alafenamide Versus Dolutegravir + Emtricitabine/Tenofovir Disoproxil Fumarate in Treatment Naive, HIV-1 and Hepatitis B Co-Infected AdultsHIV-1/HBV Co-Infection
COMPLETED244 Analytics
NCT03405935Study to Evaluate Switching From an E/C/F/TAF Fixed-Dose Combination (FDC) Regimen or a TDF Containing Regimen to B/F/TAF FDC in Human Immunodeficiency Virus-1 (HIV-1) Infected Participants Aged ≥ 65 YearsHIV-1 Infection
COMPLETED86 Analytics
NCT03110380Switching to a Fixed Dose Combination of Bictegravir/Emtricitabine/Tenofovir Alafenamide (B/F/TAF) in Human Immunodeficiency Virus Type 1 (HIV-1) Infected Adults Who Are Virologically SuppressedHIV-1-infection
COMPLETED567 Analytics
NCT02600819Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of E/C/F/TAF Fixed Dose Combination (FDC) in HIV-1 Infected Adults on Chronic HemodialysisHIV-1 Infection
COMPLETED55 Analytics
PHASE3COMPLETED
A Test and Treat Strategy in New HIV Diagnosis.
HIV-1-infectionUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Study to Compare Bictegravir/Lenacapavir Versus Current Therapy in People With HIV-1 Who Are Successfully Treated With Biktarvy
HIV-1-infectionUnlock trial analytics
PHASE3COMPLETED
Study to Evaluate Switching From a Regimen of Two Nucleos(t)Ide Reverse Transcriptase Inhibitors (NRTI) Plus a Third Agent to a Fixed Dose Combination (FDC) of Bictegravir/Emtricitabine/Tenofovir Alafenamide (B/F/TAF), in Virologically-Suppressed, HIV-1 Infected African American Participants
HIV-1 InfectionUnlock trial analytics
PHASE3COMPLETED
Safety and Efficacy of Bictegravir/Emtricitabine/Tenofovir Alafenamide Versus Dolutegravir + Emtricitabine/Tenofovir Disoproxil Fumarate in Treatment Naive, HIV-1 and Hepatitis B Co-Infected Adults
HIV-1/HBV Co-InfectionUnlock trial analytics
PHASE3COMPLETED
Study to Evaluate Switching From an E/C/F/TAF Fixed-Dose Combination (FDC) Regimen or a TDF Containing Regimen to B/F/TAF FDC in Human Immunodeficiency Virus-1 (HIV-1) Infected Participants Aged ≥ 65 Years
HIV-1 InfectionUnlock trial analytics
PHASE3COMPLETED
Switching to a Fixed Dose Combination of Bictegravir/Emtricitabine/Tenofovir Alafenamide (B/F/TAF) in Human Immunodeficiency Virus Type 1 (HIV-1) Infected Adults Who Are Virologically Suppressed
HIV-1-infectionUnlock trial analytics
PHASE3COMPLETED
Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of E/C/F/TAF Fixed Dose Combination (FDC) in HIV-1 Infected Adults on Chronic Hemodialysis
HIV-1 InfectionUnlock trial analytics

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
Percentage of Participants Who Had HIV-1 RNA ≥ 50 Copies/mL at Week 24 as Defined by the US FDA-Defined Snapshot Algorithm: Full Analysis Set
Week 24

The percentage of participants who had HIV-1 RNA ≥ 50 copies/mL at Week 24 was analyzed using the snapshot algorithm, which defined a participant's virologic response status using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status.

Percentage of Participants With HIV-1 RNA < 50 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot Algorithm (Co-primary Endpoint)
Week 48

The percentage of participants achieving HIV-1 RNA \< 50 copies/mL at Week 48 was analyzed using the snapshot algorithm, which defines a participant's virologic response status using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status. Percentages were rounded-off.

Percentage of Participants With Plasma Hepatitis B Virus (HBV) DNA < 29 IU/mL at Week 48 as Defined by Missing = Failure Approach (Co-primary Endpoint)
Week 48

This outcome measure was analyzed using a Missing = Failure approach. In this approach, all missing data were treated as HBV DNA ≥ 29 IU/mL. Percentages were rounded-off.

Percentage of Participants With HIV-1 RNA < 50 Copies/mL at Week 24 as Defined by the Food and Drug Administration (FDA)-Defined Snapshot Algorithm
Week 24

The percentage of participants with HIV-1 RNA \< 50 copies/mL at Week 24 was analyzed using the snapshot algorithm, which defined a participant's virologic response status using only the viral load at the predefined timepoint within an allowed window of time, along with study drug discontinuation status.

Percentage of Participants With HIV-1 RNA ≥ 50 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot Algorithm
Week 48

The percentage of participants with HIV-1 RNA ≥ 50 copies/mL at Week 48 was analyzed using the snapshot algorithm, which defines a participant's virologic response status using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status.

GEN Phase: Percentage of Participants Experiencing Treatment-Emergent Grade 3 or Higher Adverse Events Up to Week 48
First Dose Date Up to Week 48

Treatment-emergent Adverse Events (TEAE) were defined as AEs with onset dates on or after the study drug start date and no later than 30 days after the permanent discontinuation of the E/C/F/TAF (GEN Phase) study drug or all AEs for participants still on E/C/F/TAF. It also includes the AEs that led to premature discontinuation of E/C/F/TAF study drug. Clinical events and clinically significant laboratory abnormalities were graded according to the GSI Grading Scale for Severity of Adverse Events and Laboratory Abnormalities. Adverse events were graded as Grade 1 (mild), Grade 2 (moderate), Grade 3 (severe), or Grade 4 (life threatening).

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
PK Parameter: AUCtau of Bictegravir
Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose

AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval). Cohorts 1 \& 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose.

PK Parameter: Ctau of Bictegravir
Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose

Ctau is defined as the observed drug concentration at the end of the dosing interval. Cohorts 1 \& 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose.

PK Parameter: AUC0-24 of TAF (Cohort 4)
Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose

AUClast is defined as area under the concentration versus time curve from time zero to the last quantifiable concentration. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose.

PK Parameter: AUC0-24 of Bictegravir (Cohort 4)
Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose

AUClast is defined as area under the concentration versus time curve from time zero to the last quantifiable concentration. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose.

PK Parameter: Cmax of TAF (Cohort 4)
Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose

Cmax is defined as maximum observed concentration of drug. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose.

Percentage of Participants Experiencing Treatment-Emergent Adverse Events (AEs) Through Week 24
Up to 24 weeks
Percentage of Participants Experiencing Treatment-Emergent Laboratory Abnormalities Through Week 24
Up to 24 weeks
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAs) Though Week 8 After Neonate Birth
First dose date up to 8 Weeks
Percentage of Participants Experiencing Treatment-emergent Laboratory Abnormalities Through Week 8 After Neonate Birth
First dose date up to 8 Weeks
Pharmacokinetic (PK) parameters for Bictegravir (BIC): AUCinf
Predose up to 72 hours postdose

AUCinf is defined as area under the concentration versus time curve extrapolated to infinite time.

PK parameters for BIC: AUClast
Predose up to 72 hours postdose

AUClast is defined as the area under the concentration versus time curve from time zero to the last quantifiable concentration.

PK parameters for BIC: AUC0-24h
Predose up to 24 hours postdose

AUC0-24h is defined as the partial area under the concentration versus time curve from time 0 to time 24 hours.

PK parameters for BIC: Cmax
Predose up to 72 hours postdose

Cmax is defined as the maximum observed concentration of drug.

PK parameters for BIC: Tmax
Predose up to 72 hours postdose

Tmax is defined as the time (observed time point) of Cmax.

PK parameters for BIC: Cmin
Predose up to 72 hours postdose

Cmin is defined as the minimum observed concentration of drug.

PK parameters for BIC: C24h
At 24 hours postdose

C24h is defined as the concentration of drug at time 24 hours.

PK parameters for BIC: t1/2
Predose up to 72 hours postdose

t1/2 is defined as the terminal elimination half-life.

PK parameters for BIC: Apparent CL/F
Predose up to 72 hours postdose

Apparent CL/F is defined as the apparent total body clearance for extravascular administration.

PK parameters for BIC: Apparent Vz/F
Predose up to 72 hours postdose

Apparent Vz/F is defined as the apparent volume of distribution based on the terminal phase.

Pharmacokinetic (PK) Parameter: AUCtau of Bictegravir (BIC)
Intensive PK: Predose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 12, and 24 hours postdose in second trimester (Weeks 20-28), third trimester (Weeks 30-38), Week 6 post-partum, and Week 12 post-partum

AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval).

Pharmacokinetic (PK) Parameter: AUCinf of Bictegravir (Total)
Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

AUCinf is defined as the area under the plasma concentration versus time curve extrapolated to infinite time.

PK Parameter: AUCinf of Bictegravir (Free)
Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Free AUCinf was calculated based on unbound plasma bictegravir (AUCinf × percentage unbound bictegravir ÷ 100 for each participant).

PK Parameter: AUClast of Bictegravir (Total)
Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

AUClast is defined as the area under the plasma concentration versus time curve from time zero to the last quantifiable concentration.

PK Parameter: AUClast of Bictegravir (Free)
Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Free AUClast was calculated based on unbound plasma bictegravir (AUClast × percentage unbound bictegravir ÷ 100 for each participant).

PK Parameter: Cmax of Bictegravir (Total)
Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Cmax is defined as the maximum observed plasma concentration of drug.

PK Parameter: Cmax of Bictegravir (Free)
Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Free Cmax was calculated based on unbound plasma bictegravir (Cmax × percentage unbound bictegravir ÷ 100 for each participant).

Time-Weighted Average Change From Baseline up to Day 11 (DAVG11) in Plasma HIV-1 RNA
Baseline up to Day 11

DAVG11 was defined as the time-weighted average between the first postbaseline value through the last available on-treatment (ie, the last dose date + 1) value up to Day 11 minus the baseline value in plasma HIV-1 RNA (log10 copies/mL). All HIV-1 RNA data up to Day 11 were used for this analysis. DAVG11 was calculated using the trapezoidal rule and the area-under-the-curve concept.

Pharmacokinetic parameters for GS-9973
Up to 3 months

The primary outcome measure is the pharmacokinetic (PK) parameters for GS-9973 including AUC and Cmax.

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
Unlock Study Endpoints

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.
B/F/TAFEXPERIMENTALParticipants will receive B/F/TAF (50/200/25 mg) FDC tablet orally once daily for 48 weeks, without regard to food. At Week 48, participants who wish to continue on B/F/TAF will be given the option to receive B/F/TAF FDC for up to an additional 24 weeks or until they have access to B/F/TAF, whichever occurs first.
Stay on Baseline Regimen (SBR)/ Delayed B/F/TAFACTIVE_COMPARATORParticipants will stay on baseline regimen consisting of 2 NRTIs and a third agent (each taken as prescribed) for 24 weeks with a delayed switch to B/F/TAF (50/200/25 mg) FDC tablet administered orally, once daily until Week 48 without regard to food. At Week 48, participants who wish to continue on B/F/TAF will be given the option to receive B/F/TAF FDC for up to an additional 24 weeks or until they have access to B/F/TAF, whichever occurs first.
Blinded Phase: B/F/TAFEXPERIMENTALParticipants who are HIV-1 and HBV co-infected and treatment-naïve will receive Bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) fixed-dose combination (FDC) tablet in addition to placebo to match (PTM) dolutegravir (DTG) tablet and PTM FDC emtricitabine/ tenofovir desoproxil fumarate (F/TDF) tablet for 96 weeks.
Blinded Phase: DTG+F/TDFACTIVE_COMPARATORParticipants who are HIV-1 and HBV co-infected and treatment-naïve will receive DTG and FDC F/TDF in addition to PTM B/F/TAF for 96 weeks.
Open-label Extension Phase: B/F/TAF from B/F/TAFEXPERIMENTALAfter Week 96, participants will continue to take their blinded study drug and attend visits every 12 weeks until the End of Blinded Treatment Visit. Following the End of Blinded Treatment Visit, participants in a country where B/F/TAF FDC is not available will be given the option to receive B/F/TAF FDC in an open-label extension phase for up to 48 weeks, or until the product becomes accessible through an access program, or until Gilead elects to discontinue the study in that country, whichever occurs first.
Open-label Extension Phase: B/F/TAF from DTG+F/TDFEXPERIMENTALAfter Week 96, participants will continue to take their blinded study drug and attend visits every 12 weeks until the End of Blinded Treatment Visit. Following the End of Blinded Treatment Visit, participants in a country where B/F/TAF FDC is not available will be given the option to receive B/F/TAF FDC in an open-label extension phase for up to 48 weeks, or until the product becomes accessible through an access program, or until Gilead elects to discontinue the study in that country, whichever occurs first.
DTG + F/TAFACTIVE_COMPARATORDTG 50 mg tablet + F/TAF FDC tablet + B/F/TAF placebo tablet administered without regard to food for at least 48 weeks.
Open-label Phase B/F/TAF from B/F/TAFEXPERIMENTALParticipants who received B/F/TAF in double-blind phase and from a country where B/F/TAF was not available were given the option to receive B/F/TAF orally once daily for up to 96 weeks in the open-label extension phase.
Open-label Phase B/F/TAF from DTG + F/TAFEXPERIMENTALParticipants who received DTG + F/TAF in double-blind phase and from a country where B/F/TAF was not available were given the option to receive B/F/TAF orally once daily for up to 96 weeks in the open-label extension phase.
E/C/F/TAFEXPERIMENTALParticipants will switch their current antiretroviral regimen to E/C/F/TAF and receive treatment for 96 weeks. After Week 96, participants in the United States (US) who wish to participate in the open-label (OL) rollover extension will continue to take E/C/F/TAF FDC until the End of E/C/F/TAF Visit.
Open-Label Rollover Extension B/F/TAFEXPERIMENTALAt Week 96 or the End of E/C/F/TAF Visit (whichever occurs last), participants will be given the option to receive open-label bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) for at least 48 weeks.
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.
Cohort 1 (12 to < 18 years of age and weight ≥ 35 kg)EXPERIMENTAL* Part A: Participants will participate in an Intensive PK evaluation at Week 2 or Week 4 and continue to receive the adult strength B/F/TAF FDC through Week 48. * Part B: Following confirmation of BIC PK data from Cohort 1 Part A, participants will receive the adult strength B/F/TAF through Week 48.
Cohort 2 (6 to < 12 years of age and weight ≥ 25 kg)EXPERIMENTAL* Part A: Participants will participate in an Intensive PK evaluation at Week 2 or Week 4 and continue to receive the adult strength B/F/TAF FDC through Week 48. * Part B: Following confirmation of BIC PK data from Cohort 2 Part A, participants will receive the adult strength B/F/TAF FDC through Week 48.
Cohort 3 (≥ 2 years of age and weight ≥ 14 to < 25 kg)EXPERIMENTAL* Part A: Participants will participate in an Intensive PK evaluation at Week 2 after which they will continue to receive the low dose B/F/TAF FDC tablet through Week 48. * Part B: Following confirmation of BIC PK data from Cohort 3 Part A, participants will receive the low dose B/F/TAF FDC tablet through Week 48.
Cohort 4 Group 1 (≥ 2 years of age and weight ≥ 14 to < 25 kg)EXPERIMENTALDue to Cohort 3 Part A Intensive PK evaluation at Week 2 with the low dose B/F/TAF FDC tablet, participants will not participate in an Intensive PK evaluation at Week 2. Participants will receive B/F/TAF FDC tablets for oral suspension (TOS) once daily through Week 48.
Cohort 4 Group 2 (≥ 1 month of age and weight ≥ 10 to < 14 kg)EXPERIMENTALParticipants will participate in an Intensive PK evaluation at Week 2 after which they will continue to receive B/F/TAF FDC TOS twice daily through Week 48.
Cohort 4 Group 3 (≥ 1 month of age and weight ≥ 6 to < 10 kg)EXPERIMENTALParticipants will participate in an Intensive PK evaluation at Week 2 after which they will continue to receive B/F/TAF FDC TOS twice daily through Week 48.
Cohort 4 Group 4 (≥ 1 month of age and weight ≥ 3 to < 6 kg)EXPERIMENTALParticipants will participate in an Intensive PK evaluation at Week 2 after which they will continue to receive B/F/TAF FDC TOS twice daily through Week 48.
Open-Label ExtensionEXPERIMENTALFollowing Week 48, participants in countries where B/F/TAF is not available may have the option to receive adult strength B/F/TAF FDC, low dose B/F/TAF FDC, or B/F/TAF FDC TOS (based on age and weight) until it becomes available for use according to the participant's age and weight or the product becomes accessible to participants through an access program.
Cohort 1: Group A of B/F/TAFEXPERIMENTALFull-term neonate participants, who are exposed to HIV-1 but uninfected, with a weight of ≥ 2.5 kg at birth and their mothers will be assigned to Cohort 1 Group A to evaluate a different pharmacokinetic (PK) sampling scheme than Cohort 1 Group B. Neonate participants will receive a single dose of B/F/TAF fixed-dose combination 1.88/7.5/0.94 mg tablet for oral suspension administered along with 1 antiretroviral as standard of care postnatal prophylaxis at both Visits 1 and 3.
Cohort 1: Group B of B/F/TAFEXPERIMENTALOnce enrollment in Cohort 1 Group A is completed, full-term neonate participants, who are exposed to HIV-1 but uninfected, with a weight of ≥ 2.5 kg at birth and their mothers will be assigned to Cohort 1 Group B to evaluate a different PK sampling scheme than Cohort 1 Group A. Participants will receive a single dose of B/F/TAF fixed-dose combination 1.88/7.5/0.94 mg tablet for oral suspension administered along with 1 antiretroviral as standard of care postnatal prophylaxis at both Visits 1 and 3.
NeonatesNO_INTERVENTIONNeonates who will be born to women participants in the study will be followed from birth up to 8 weeks of age after obtaining consent from the parent or legal guardian. None of the neonates that participate in the study will be treated with the study drug.
Severe Renal ImpairmentEXPERIMENTALParticipants with severe renal impairment and matched healthy controls will receive a single dose of bictegravir.
Moderate Renal ImpairmentEXPERIMENTALParticipants with moderate renal impairment and matched healthy controls will receive a single dose of bictegravir.
Mild Renal ImpairmentEXPERIMENTALParticipants with mild renal impairment and matched healthy controls will receive a single dose of bictegravir.
Bictegravir 5 mgEXPERIMENTALBictegravir 5 mg (1 × 5 mg tablet) for 10 days
Bictegravir 25 mgEXPERIMENTALBictegravir 25 mg (1 × 25 mg tablet) for 10 days
Bictegravir 50 mgEXPERIMENTALBictegravir 50 mg (2 × 25 mg tablets) for 10 days
Bictegravir 100 mgEXPERIMENTALBictegravir 100 mg (1 × 100 mg tablet) for 10 days
PlaceboPLACEBO_COMPARATORPlacebo matched to bictegravir tablet for 10 days
Sequence 1EXPERIMENTAL -
Sequence 2EXPERIMENTAL -
Sequence 3EXPERIMENTAL -
Sequence 4EXPERIMENTAL -

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
NRTIsDRUGThe following NRTIs will be administered as prescribed until Week 24 without regard to food: abacavir (ABC), emtricitabine (FTC), lamivudine (3TC), tenofovir alafenamide (TAF), tenofovir disoproxil fumarate (TDF), zidovudine (ZDV or AZT)
Third AgentDRUGAny one of the following third agents will be administered as prescribed. Protease inhibitors and EVG will be administered with the appropriate pharmacologic booster cobicistat or ritonavir. : * Non-nucleoside reverse transcriptase inhibitors (NNRTIs) * delavirdine (DLV) * efavirenz (EFV) * nevirapine (NVP) * rilpivirine (RPV) * doravirine (DOR) * Integrase inhibitors * dolutegravir (DTG) * elvitegravir (EVG) * raltegravir (RAL) * Protease inhibitors (PIs) * atazanavir (ATV) * darunavir (DRV) * lopinavir (LPV) * nelfinavir NFV) * saquinavir (SQV) * tipranavir (TPV) * Chemokine co-recptor 5 (CCR5) antagonist --maraviroc (MVC)
Placebo to match DTGDRUGTablet administered orally once daily, without regard to food
Placebo to match F/TDFDRUGTablet administered orally once daily, without regard to food
DTGDRUG50 mg tablet administered orally once daily, without regard to food
F/TDFDRUG200/300 mg tablet administered orally once daily, without regard to food
F/TAFDRUG200/25 mg FDC tablet(s) administered orally once daily
DTG PlaceboDRUGTablet(s) administered orally once daily
F/TAF PlaceboDRUGTablet(s) administered orally once daily
B/F/TAF PlaceboDRUGTablet(s) administered orally once daily
E/C/F/TAFDRUG150/150/200/10 mg FDC tablets administered orally once daily
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
B/F/TAF (Adult Strength)DRUG50/200/25 mg FDC tablets administered orally once daily without regard to food.
B/F/TAF (Low Dose)DRUG30/120/15 mg FDC tablets administered orally once daily without regard to food.
B/F/TAF (TOS)DRUG2 x B/F/TAF 15/60/7.5 mg (total daily dose 30/120/15 mg) FDC tablets administered orally as TOS, once daily.
PlaceboDRUGPlacebo to match bictegravir administered orally once daily
Treatment ADRUG1600 mg GS-9973 (Formulation 1)
Treatment BDRUG1600 mg GS-9973 (Formulation 1) plus 20 mg omeprazole
Treatment CDRUG1600 mg GS-9973 (Formulation 1) plus 40 mg famotidine
Treatment DDRUG1600 mg GS-9973 (Formulation 2)
Treatment EDRUG1600 mg GS-9973 (Formulation 2) plus 20 mg omeprazole
Treatment FDRUG1600 mg GS-9973 (Formulation 2) plus 40 mg famotidine
Treatment GDRUG1600 mg GS-9973 (Reference formulation)
Treatment HDRUG1600 mg GS-9973 (Formulation 1 or Formulation 2, based on results from Part A)
Treatment IDRUGAn alternate dose of the chosen formulation from Part A up to 1200 mg administered twice-daily
Treatment JDRUGAn alternate dose of the chosen formulation from Part A up to 1200 mg administered twice-daily
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Eligibility Criteria

Age Range18 Years to 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 KingdomChinaFranceGreeceHong KongMalaysiaThailandTurkey (Türkiye)BelgiumAustriaSouth AfricaUgandaNew Zealand
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Recent Changes (Last 90 Days)

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Frequently asked questions about Biktarvy

What is Bictegravir used for?

Bictegravir is an investigational small molecule being studied for the treatment of HIV-1 infection. It is being evaluated in clinical trials for people with HIV-1, including those successfully treated with other regimens. Bictegravir is being developed by Gilead Sciences, Inc. (GILD).

What does Bictegravir target?

Bictegravir is an integrase inhibitor, a type of antiretroviral drug that blocks the HIV integrase enzyme, preventing the virus from integrating its genetic material into human DNA. This mechanism is being studied in clinical trials for the treatment of HIV-1 infection.

Who makes Bictegravir?

Bictegravir is being developed by Gilead Sciences, Inc., a biopharmaceutical company traded on NASDAQ under the ticker GILD. Gilead is conducting clinical trials to evaluate bictegravir for the treatment of HIV-1 infection.

What phase is Bictegravir in?

Bictegravir is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. Clinical trials are ongoing to evaluate its safety and efficacy for the treatment of HIV-1 infection.

What clinical trials is Bictegravir in?

Bictegravir is being studied in several clinical trials, including NCT02275065, a completed Phase 1 study evaluating its safety and antiviral activity in HIV-1 infected participants, and NCT02400307, a completed Phase 1 study of its pharmacokinetics in adults with normal and impaired renal function. Additional trials are ongoing.

Is Bictegravir the same as Bictegravir/emtricitabine/tenofovir alafenamide?

Bictegravir is a component of the combination product bictegravir/emtricitabine/tenofovir alafenamide. While bictegravir is the integrase inhibitor, the combination includes two other antiretroviral drugs. Clinical trials are evaluating bictegravir alone and in combination with other agents.