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Study to Evaluate the Safety and Efficacy of Bictegravir/Emtricitabine/Tenofovir Alafenamide Versus Dolutegravir + Emtricitabine/Tenofovir Alafenamide in Human Immunodeficiency Virus (HIV-1) Infected, Antiretroviral Treatment-Naive Adults

A Phase 3, Randomized, Double-Blind Study to Evaluate the Safety and Efficacy of GS-9883/Emtricitabine/Tenofovir Alafenamide Versus Dolutegravir + Emtricitabine/Tenofovir Alafenamide in HIV-1 Infected, Antiretroviral Treatment-Naive Adults

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02607956
Enrollment
657
Registered
2015-11-18
Start date
2015-11-11
Completion date
2021-07-05
Last updated
2022-03-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV-1 Infection

Keywords

HIV

Brief summary

This primary objective of this study is to evaluate the efficacy of a fixed dose combination (FDC) containing bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) versus dolutegravir (DTG) + a FDC containing emtricitabine/tenofovir alafenamide (F/TAF) in HIV-1 infected, antiretroviral treatment-naive adults.

Interventions

DRUGDTG

50 mg tablets administered orally, once daily

DRUGF/TAF

200/25 mg tablets administered orally, once daily

DRUGB/F/TAF

50/200/25 milligrams (mg) FDC tablets administered orally, once daily

Tablets administered orally, once daily

Tablets administered orally, once daily

Tablets administered orally, once daily

Sponsors

Gilead Sciences
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Antiretroviral treatment naive (≤ 10 days of prior therapy with any antiretroviral agent following a diagnosis of HIV-1 infection) except the use for pre-exposure prophylaxis (PrEP) or post-exposure prophylaxis (PEP), up to one month prior to screening * Plasma HIV-1 ribonucleic acid (RNA) levels ≥ 500 copies per milliliter (mL) at screening * Adequate renal function: Estimated glomerular filtration rate ≥ 30 mL per minute (min) (≥ 0.50 mL per second (sec)) according to the Cockcroft-Gault formula Key

Exclusion criteria

* An opportunistic illness indicative of stage 3 HIV diagnosed within the 30 days prior to screening * Decompensated cirrhosis (eg, ascites, encephalopathy, or variceal bleeding) * Current alcohol or substance use judged by the Investigator to potentially interfere with subject study compliance * Females who are pregnant (as confirmed by positive serum pregnancy test) * Females who are breastfeeding Note: Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot AlgorithmWeek 48The 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.

Secondary

MeasureTime frameDescription
Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 144 as Defined by the US FDA-Defined Snapshot AlgorithmWeek 144The percentage of participants achieving HIV-1 RNA \< 50 copies/mL at Week 144 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.
Percentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot AlgorithmWeek 48The percentage of participants achieving HIV-1 RNA \< 20 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.
Percentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 96 as Defined by the US FDA-Defined Snapshot AlgorithmWeek 96The percentage of participants achieving HIV-1 RNA \< 20 copies/mL at Week 96 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.
Percentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 144 as Defined by the US FDA-Defined Snapshot AlgorithmWeek 144The percentage of participants achieving HIV-1 RNA \< 20 copies/mL at Week 144 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.
Change From Baseline in log10 HIV-1 RNA at Week 48Baseline, Week 48
Change From Baseline in log10 HIV-1 RNA at Week 96Baseline, Week 96
Change From Baseline in log10 HIV-1 RNA at Week 144Baseline, Week 144
Change From Baseline in CD4+ Cell Count at Week 48Baseline, Week 48
Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 as Defined by the US FDA-Defined Snapshot AlgorithmWeek 96The percentage of participants achieving HIV-1 RNA \< 50 copies/mL at Week 96 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.
Change From Baseline in CD4+ Cell Count at Week 144Baseline, Week 144
Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 Open-Label as Defined by Missing = Excluded AlgorithmBaseline, open-label Week 48The percentage of participants with HIV-1 RNA \< 50 copies/mL was analyzed using Missing = Excluded for imputing missing HIV-1 RNA values using the All B/F/TAF Analysis Set for the all B/F/TAF analysis. All missing data was excluded in the computation of the percentages (ie, missing data points were excluded from both the numerator and denominator in the computation). The denominator for percentages at a visit was the number of participants in the all B/F/TAF analysis set with nonmissing HIV-1 RNA value at that visit.
Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 Open-Label as Defined by Missing = Failure AlgorithmBaseline, open-label Week 48The percentage of participants with HIV-1 RNA \< 50 copies/mL was analyzed using Missing = Failure for imputing missing HIV-1 RNA values using the All B/F/TAF Analysis Set for the all B/F/TAF analysis. All missing data was treated as HIV-1 RNA ≥ 50 copies/mL. The denominator for percentages was the number of participants in all B/F/TAF analysis set.
Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 Open-Label as Defined by Missing = Excluded AlgorithmBaseline, open-label Week 96The percentage of participants with HIV-1 RNA \< 50 copies/mL was analyzed using Missing = Excluded for imputing missing HIV-1 RNA values using the All B/F/TAF Analysis Set for the all B/F/TAF analysis. All missing data was excluded in the computation of the percentages (ie, missing data points were excluded from both the numerator and denominator in the computation). The denominator for percentages at a visit was the number of participants in the all B/F/TAF analysis set with nonmissing HIV-1 RNA value at that visit.
Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 Open-Label as Defined by Missing = Failure AlgorithmBaseline, open-label Week 96The percentage of participants with HIV-1 RNA \< 50 copies/mL was analyzed using Missing = Failure for imputing missing HIV-1 RNA values using the All B/F/TAF Analysis Set for the all B/F/TAF analysis. All missing data was treated as HIV-1 RNA ≥ 50 copies/mL. The denominator for percentages was the number of participants in all B/F/TAF analysis set.
Change From Baseline in CD4+ Cell Count at Week 48 Open-LabelBaseline, open-label Week 48
Change From Baseline in CD4+ Cell Count at Week 96 Open-LabelBaseline, open-label Week 96
Change From Baseline in CD4+ Cell Count at Week 96Baseline, Week 96

Countries

Australia, Belgium, Canada, Dominican Republic, France, Germany, Italy, Puerto Rico, Spain, United Kingdom, United States

Participant flow

Recruitment details

Participants were enrolled at centers in Australia, Europe, North America, and the Dominican Republic. The first participant was screened on 11 November 2015. The last study visit occurred on 05 July 2021.

Pre-assignment details

742 participants were screened.

Participants by arm

ArmCount
B/F/TAF
Blinded Phase: B/F/TAF (50/200/25 mg) FDC + DTG placebo + F/TAF placebo orally once daily for at least 144 weeks, without regard to food Open-Label Extension Phase: After Week 144, participants continued to take their blinded study drug and attended visits every 12 weeks until the End of Blinded Treatment Visit. Following the End of Blinded Treatment Visit, participants were given the option to receive OL B/F/TAF for 96 weeks. After the Week 96 OL Visit, participants in a country where B/F/TAF was not commercially available were given the option to continue OL B/F/TAF until the product became accessible through an access program or until Gilead elected to discontinue the study in that country, whichever occured first.
320
DTG + F/TAF
Blinded Phase: DTG (50 mg) + F/TAF (200/25 mg) FDC tablet + B/F/TAF placebo orally once daily for at least 144 weeks, without regard to food Open-Label Extension Phase: After Week 144, participants continued to take their blinded study drug and attended visits every 12 weeks until the End of Blinded Treatment Visit. Following the End of Blinded Treatment Visit, participants were given the option to receive OL B/F/TAF for 96 weeks. After the Week 96 OL Visit, participants in a country where B/F/TAF was not commercially available were given the option to continue OL B/F/TAF until the product became accessible through an access program or until Gilead elected to discontinue the study in that country, whichever occured first.
325
Total645

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Double-Blinded PhaseAdverse Event4300
Double-Blinded PhaseDeath4400
Double-Blinded PhaseInvestigator's Discretion7200
Double-Blinded PhaseLost to Follow-up191600
Double-Blinded PhaseNon-Compliance with Study Drug0300
Double-Blinded PhaseProtocol Violation3100
Double-Blinded PhaseRandomized but never treated7500
Double-Blinded PhaseWithdrew Consent171900
Open-Label Extension PhaseDeath0013
Open-Label Extension PhaseInvestigator's Discretion0022
Open-Label Extension PhaseLost to Follow-up00146
Open-Label Extension PhaseNon Compliance with Study Drug0020
Open-Label Extension PhasePregnancy0001
Open-Label Extension PhaseProtocol Violation0002
Open-Label Extension PhaseWithdrew Consent001016

Baseline characteristics

CharacteristicTotalB/F/TAFDTG + F/TAF
Age, Continuous37 years
STANDARD_DEVIATION 11.9
37 years
STANDARD_DEVIATION 12.3
37 years
STANDARD_DEVIATION 11.6
CD4 Cell Count456 Cells/µL
STANDARD_DEVIATION 243.4
457 Cells/µL
STANDARD_DEVIATION 255.3
454 Cells/µL
STANDARD_DEVIATION 231.5
CD4 Cell Count Categories
≥ 200 to < 350 cells/μL
144 Participants67 Participants77 Participants
CD4 Cell Count Categories
≥ 350 to < 500 cells/μL
185 Participants91 Participants94 Participants
CD4 Cell Count Categories
≥ 500 cells/μL
238 Participants118 Participants120 Participants
CD4 Cell Count Categories
< 50 cells/μL
28 Participants15 Participants13 Participants
CD4 Cell Count Categories
≥ 50 to < 200 cells/μL
50 Participants29 Participants21 Participants
HIV-1 RNA4.41 log10 copies/mL
STANDARD_DEVIATION 0.7
4.39 log10 copies/mL
STANDARD_DEVIATION 0.73
4.42 log10 copies/mL
STANDARD_DEVIATION 0.669
HIV-1 RNA Categories
> 100,000 ≤ 400,000 copies/mL
95 Participants54 Participants41 Participants
HIV-1 RNA Categories
≤ 100,000 copies/mL
525 Participants254 Participants271 Participants
HIV-1 RNA Categories
> 400,000 copies/mL
25 Participants12 Participants13 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
2 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Asian
17 Participants7 Participants10 Participants
Race/Ethnicity, Customized
Black
197 Participants97 Participants100 Participants
Race/Ethnicity, Customized
Hispanic or Latino
164 Participants83 Participants81 Participants
Race/Ethnicity, Customized
Native Hawaiian or Pacific Islander
1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
481 Participants237 Participants244 Participants
Race/Ethnicity, Customized
Other
50 Participants31 Participants19 Participants
Race/Ethnicity, Customized
White
378 Participants183 Participants195 Participants
Region of Enrollment
Australia
14 Participants4 Participants10 Participants
Region of Enrollment
Belgium
8 Participants4 Participants4 Participants
Region of Enrollment
Canada
21 Participants12 Participants9 Participants
Region of Enrollment
Dominican Republic
45 Participants27 Participants18 Participants
Region of Enrollment
France
12 Participants7 Participants5 Participants
Region of Enrollment
Germany
48 Participants20 Participants28 Participants
Region of Enrollment
Italy
33 Participants15 Participants18 Participants
Region of Enrollment
Spain
34 Participants17 Participants17 Participants
Region of Enrollment
United Kingdom
44 Participants21 Participants23 Participants
Region of Enrollment
United States
386 Participants193 Participants193 Participants
Sex: Female, Male
Female
77 Participants40 Participants37 Participants
Sex: Female, Male
Male
568 Participants280 Participants288 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
4 / 3274 / 3301 / 2543 / 265
other
Total, other adverse events
250 / 320262 / 325165 / 254163 / 265
serious
Total, serious adverse events
64 / 32046 / 32520 / 25432 / 265

Outcome results

Primary

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

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.

Time frame: Week 48

Population: Full Analysis Set included all participants who were randomized into the study and received at least 1 dose of study drug.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot Algorithm89.4 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot Algorithm92.9 percentage of participants
95.002% CI: [-7.9, 1]
p-value: 0.12Cochran-Mantel-Haenszel
Secondary

Change From Baseline in CD4+ Cell Count at Week 144

Time frame: Baseline, Week 144

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
B/F/TAFChange From Baseline in CD4+ Cell Count at Week 144278 cells/μLStandard Deviation 236.6
DTG + F/TAFChange From Baseline in CD4+ Cell Count at Week 144289 cells/μLStandard Deviation 218.5
p-value: 0.4895% CI: [-52, 25]ANOVA
Secondary

Change From Baseline in CD4+ Cell Count at Week 48

Time frame: Baseline, Week 48

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
B/F/TAFChange From Baseline in CD4+ Cell Count at Week 48180 cells/μLStandard Deviation 166.2
DTG + F/TAFChange From Baseline in CD4+ Cell Count at Week 48201 cells/μLStandard Deviation 165.9
p-value: 0.09695% CI: [-49, 4]ANOVA
Secondary

Change From Baseline in CD4+ Cell Count at Week 48 Open-Label

Time frame: Baseline, open-label Week 48

Population: Participants in the All B/F/TAF Analysis Set with available data were analyzed. For the B/F/TAF group, Week 48 open-label time point refers to Week 192; for Change from Baseline in CD4 Cell Count analysis, it included the available participants at that time point from the Randomized Phase.

ArmMeasureValue (MEAN)Dispersion
B/F/TAFChange From Baseline in CD4+ Cell Count at Week 48 Open-Label304 cells/μLStandard Deviation 249.2
DTG + F/TAFChange From Baseline in CD4+ Cell Count at Week 48 Open-Label9 cells/μLStandard Deviation 198
Secondary

Change From Baseline in CD4+ Cell Count at Week 96

Time frame: Baseline, Week 96

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
B/F/TAFChange From Baseline in CD4+ Cell Count at Week 96237 cells/μLStandard Deviation 204.2
DTG + F/TAFChange From Baseline in CD4+ Cell Count at Week 96281 cells/μLStandard Deviation 209.3
p-value: 0.00895% CI: [-81, -12]ANOVA
Secondary

Change From Baseline in CD4+ Cell Count at Week 96 Open-Label

Time frame: Baseline, open-label Week 96

Population: Participants in the All B/F/TAF Analysis Set with available data were analyzed. For the B/F/TAF group, Week 96 open-label time point refers to Week 240; for Change from Baseline in CD4 Cell Count analysis, it included the available participants at that time point from the Randomized Phase.

ArmMeasureValue (MEAN)Dispersion
B/F/TAFChange From Baseline in CD4+ Cell Count at Week 96 Open-Label336 cells/µLStandard Deviation 235.1
DTG + F/TAFChange From Baseline in CD4+ Cell Count at Week 96 Open-Label-10 cells/µLStandard Deviation 181.1
Secondary

Change From Baseline in log10 HIV-1 RNA at Week 144

Time frame: Baseline, Week 144

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
B/F/TAFChange From Baseline in log10 HIV-1 RNA at Week 144-3.06 log10 copies/mLStandard Deviation 0.731
DTG + F/TAFChange From Baseline in log10 HIV-1 RNA at Week 144-3.11 log10 copies/mLStandard Deviation 0.672
p-value: 0.05495% CI: [0, 0.18]ANOVA
Secondary

Change From Baseline in log10 HIV-1 RNA at Week 48

Time frame: Baseline, Week 48

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
B/F/TAFChange From Baseline in log10 HIV-1 RNA at Week 48-3.07 log10 copies/mLStandard Deviation 0.719
DTG + F/TAFChange From Baseline in log10 HIV-1 RNA at Week 48-3.12 log10 copies/mLStandard Deviation 0.672
p-value: 0.08195% CI: [-0.01, 0.17]ANOVA
Secondary

Change From Baseline in log10 HIV-1 RNA at Week 96

Time frame: Baseline, Week 96

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
B/F/TAFChange From Baseline in log10 HIV-1 RNA at Week 96-3.08 log10 copies/mLStandard Deviation 0.703
DTG + F/TAFChange From Baseline in log10 HIV-1 RNA at Week 96-3.10 log10 copies/mLStandard Deviation 0.713
p-value: 0.1895% CI: [-0.03, 0.15]ANOVA
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 144 as Defined by the US FDA-Defined Snapshot Algorithm

The percentage of participants achieving HIV-1 RNA \< 20 copies/mL at Week 144 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.

Time frame: Week 144

Population: Participants in the Full Analysis Set were analyzed.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 144 as Defined by the US FDA-Defined Snapshot Algorithm77.5 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 144 as Defined by the US FDA-Defined Snapshot Algorithm79.1 percentage of participants
95% CI: [-7.4, 5.3]
p-value: 0.74Cochran-Mantel-Haenszel
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot Algorithm

The percentage of participants achieving HIV-1 RNA \< 20 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.

Time frame: Week 48

Population: Participants in the Full Analysis Set were analyzed.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot Algorithm82.2 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot Algorithm87.1 percentage of participants
95% CI: [-9.4, 1.5]
p-value: 0.16Cochran-Mantel-Haenszel
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 96 as Defined by the US FDA-Defined Snapshot Algorithm

The percentage of participants achieving HIV-1 RNA \< 20 copies/mL at Week 96 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.

Time frame: Week 96

Population: Participants in the Full Analysis Set were analyzed.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 96 as Defined by the US FDA-Defined Snapshot Algorithm77.5 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 20 Copies/mL at Week 96 as Defined by the US FDA-Defined Snapshot Algorithm80.3 percentage of participants
95% CI: [-8.8, 3.8]
p-value: 0.44Cochran-Mantel-Haenszel
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 144 as Defined by the US FDA-Defined Snapshot Algorithm

The percentage of participants achieving HIV-1 RNA \< 50 copies/mL at Week 144 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.

Time frame: Week 144

Population: Participants in the Full Analysis Set were analyzed.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 144 as Defined by the US FDA-Defined Snapshot Algorithm81.9 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 144 as Defined by the US FDA-Defined Snapshot Algorithm84.0 percentage of participants
95% CI: [-7.8, 3.9]
p-value: 0.52Cochran-Mantel-Haenszel
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 Open-Label as Defined by Missing = Excluded Algorithm

The percentage of participants with HIV-1 RNA \< 50 copies/mL was analyzed using Missing = Excluded for imputing missing HIV-1 RNA values using the All B/F/TAF Analysis Set for the all B/F/TAF analysis. All missing data was excluded in the computation of the percentages (ie, missing data points were excluded from both the numerator and denominator in the computation). The denominator for percentages at a visit was the number of participants in the all B/F/TAF analysis set with nonmissing HIV-1 RNA value at that visit.

Time frame: Baseline, open-label Week 48

Population: Participants in All B/F/TAF Analysis Set (who were randomized into the randomized phase of the study and received at least 1 dose of the B/F/TAF in the randomized phase or at least 1 dose of the B/F/TAF in the open label extension phase) with available data were analyzed. For the B/F/TAF group, Week 48 open-label time point refers to Week 192; for Missing = Excluded analysis, it included the available participants at that time point from the Randomized Phase.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 Open-Label as Defined by Missing = Excluded Algorithm99.2 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 Open-Label as Defined by Missing = Excluded Algorithm99.6 percentage of participants
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 Open-Label as Defined by Missing = Failure Algorithm

The percentage of participants with HIV-1 RNA \< 50 copies/mL was analyzed using Missing = Failure for imputing missing HIV-1 RNA values using the All B/F/TAF Analysis Set for the all B/F/TAF analysis. All missing data was treated as HIV-1 RNA ≥ 50 copies/mL. The denominator for percentages was the number of participants in all B/F/TAF analysis set.

Time frame: Baseline, open-label Week 48

Population: Participants in the All B/F/TAF Analysis Set were analyzed. For the B/F/TAF group, Week 48 open-label time point refers to Week 192; for Missing = Failure analysis, it included all participants from the Randomized Phase.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 Open-Label as Defined by Missing = Failure Algorithm75.3 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 48 Open-Label as Defined by Missing = Failure Algorithm84.5 percentage of participants
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 as Defined by the US FDA-Defined Snapshot Algorithm

The percentage of participants achieving HIV-1 RNA \< 50 copies/mL at Week 96 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.

Time frame: Week 96

Population: Participants in the Full Analysis Set were analyzed.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 as Defined by the US FDA-Defined Snapshot Algorithm84.1 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 as Defined by the US FDA-Defined Snapshot Algorithm86.5 percentage of participants
95% CI: [-7.9, 3.2]
p-value: 0.41Cochran-Mantel-Haenszel
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 Open-Label as Defined by Missing = Excluded Algorithm

The percentage of participants with HIV-1 RNA \< 50 copies/mL was analyzed using Missing = Excluded for imputing missing HIV-1 RNA values using the All B/F/TAF Analysis Set for the all B/F/TAF analysis. All missing data was excluded in the computation of the percentages (ie, missing data points were excluded from both the numerator and denominator in the computation). The denominator for percentages at a visit was the number of participants in the all B/F/TAF analysis set with nonmissing HIV-1 RNA value at that visit.

Time frame: Baseline, open-label Week 96

Population: Participants in All B/F/TAF Analysis Set with available data were analyzed. For the B/F/TAF group, Week 96 open-label time point refers to Week 240; for Missing = Excluded analysis, it included the available participants at that time point from the Randomized Phase.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 Open-Label as Defined by Missing = Excluded Algorithm99.5 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 Open-Label as Defined by Missing = Excluded Algorithm99.1 percentage of participants
Secondary

Percentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 Open-Label as Defined by Missing = Failure Algorithm

The percentage of participants with HIV-1 RNA \< 50 copies/mL was analyzed using Missing = Failure for imputing missing HIV-1 RNA values using the All B/F/TAF Analysis Set for the all B/F/TAF analysis. All missing data was treated as HIV-1 RNA ≥ 50 copies/mL. The denominator for percentages was the number of participants in all B/F/TAF analysis set.

Time frame: Baseline, open-label Week 96

Population: Participants in the All B/F/TAF Analysis Set were analyzed. For the B/F/TAF group, Week 96 open-label time point refers to Week 240; for Missing = Failure analysis, it included all participants from the Randomized Phase.

ArmMeasureValue (NUMBER)
B/F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 Open-Label as Defined by Missing = Failure Algorithm68.1 percentage of participants
DTG + F/TAFPercentage of Participants Who Achieved HIV-1 RNA < 50 Copies/mL at Week 96 Open-Label as Defined by Missing = Failure Algorithm87.5 percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 9, 2026