Virologically Suppressed Patients

Elias taking a group class at the gym.
Elias, 42, UNDETECTABLE.  Switched to BIKTARVY in 2018.
People featured are compensated by Gilead.

BIKTARVY®—Backed by Robust Clinical Trial Experience1-3

BIKTARVY was extensively studied across a diverse range of virologically suppressed patient populations1-3

Study 1844: Study Design

BIKTARVY vs ABC/DTG/3TC in virologically suppressed adults1,4,5

Phase 3, Randomized, Double-Blind, Active-Controlled Study

Study Conducted: November 2015—October 20196
Primary endpoint

Proportion of adults with HIV-1 RNA ≥50 copies/mL at Week 48 (NI margin 4%) using the FDA snapshot algorithm4

Open-label extension

The objective of the OLE from Week 48 through Week 168 was to evaluate the efficacy and safety of BIKTARVY after additional exposure5

  • Efficacy in the extension phase from Week 48 through Week 168 was calculated using a missing=excluded (M=E) analysis

Study 18441

BIKTARVY (n=282)
ABC/DTG/ 3TC (n=281)
Median age, years (range)
47 (21-71)
45 (20-70)
Sex
Male, %
88
90
Female, %
12
10
Race
White, %
73
73
Black, %
21
22
Asian, %
3
3
Hispanic/Latino, %
16
19
Median eGFRCG, mL/min (IQR)
101  (85-119)
101  (85-122)

Retrospective Analysis of Preexisting Resistance at Baseline in Studies 1844 & 18782,*,†

BIKTARVY Arms From Studies 1844 & 1878 N=519 (IN) N=543 (RT/PR)

INSTI, % 2.5
NRTI, % 16.4
NNRTI, % 22.8
PI, % 10.1
T97A, % 1.7
1 or 2 TAMs, % 6.4
K103N/S, % 11.8
Q148H, % 0.2
M184V/I, % 9.9
E138A/K/Q, % 4.6
K65R/N, % 1.3
  • Historical genotype records were assessed at screening, and documented resistance to study drugs or evidence of previous virologic failure led to exclusion. Retrospective deep sequencing analysis was later attempted on baseline samples from all BIKTARVY-treated participants.

*This list is not inclusive of all RAMs observed in this analysis.2

BIKTARVY is not indicated for patients with known or suspected substitutions associated with resistance to bictegravir or tenofovir.3

Retrospective deep sequencing data were combined with the population sequencing data from screening.

3TC, lamivudine; ABC, abacavir; CD4, cluster of differentiation 4; eGFRCG, estimated glomerular filtration rate (Cockcroft-Gault); IN, integrase; INSTI, integrase strand transfer inhibitor; IQR, interquartile range; NRTI, nucleoside reverse transcriptase inhibitor; NNRTI, non-nucleoside reverse transcriptase inhibitor; PI, protease inhibitor; PR, protease; RAM, resistance-associated mutation; RT, reverse transcriptase; TAM, thymidine-associated mutation.

References: 1. Molina J-M, Ward D, Brar I, et al. Switching to fixed-dose bictegravir, emtricitabine, and tenofovir alafenamide from dolutegravir plus abacavir and lamivudine in virologically suppressed adults with HIV-1: 48 week results of a randomised, double-blind, multicentre, active-controlled, phase 3, non-inferiority trial. Lancet HIV. 2018;5(7):e357-e365. 2. Andreatta K, Willkom M, Martin R, et al. Switching to bictegravir/emtricitabine/tenofovir alafenamide maintained HIV-1 RNA suppression in participants with archived antiretroviral resistance including M184V/I. J Antimicrob Chemother. 2019;74(12):3555-3564. 3. BIKTARVY. Prescribing information. Gilead Sciences, Inc.; 2024.

Study 1844: Efficacy

Durable efficacy in virologically suppressed adults at 3 years1,4,5

94% of adults who switched to BIKTARVY maintained virologic suppression at Week 48

Virologic Response in Study 18441,4,*

*Percentages do not total 100% due to rounding.

Treatment difference in HIV-1 RNA ≥50 copies/mL (95% confidence interval, P value).

Durable viral suppression at Week 1685

In a 120-week open-label extension from Week 48, using an M=E analysis, virologic suppression was maintained in 100% of study participants on BIKTARVY (n=14) at Week 168 from BIKTARVY switch.5

  • In an M=E analysis, study participants with missing data are excluded when calculating the proportion of participants with HIV-1 RNA <50 copies/mL

IMPORTANT SAFETY INFORMATION (cont’d)

Contraindications

  • Coadministration: Do not use BIKTARVY with dofetilide or rifampin.

Study 1878: Study Design

BIKTARVY vs ATV- or DRV-based regimen in virologically suppressed adults1,7,8

Phase 3, Randomized, Open-Label, Active-Controlled Study

Study Conducted: November 2015—December 20199

Cobicistat or ritonavir.

Primary endpoint

Proportion of adults with HIV-1 RNA ≥50 copies/mL at Week 48 (NI margin 4%) using the FDA snapshot algorithm7

Extension phase

The objective of the extension phase from Week 48 through Week 96 was to evaluate the efficacy and safety of BIKTARVY after additional exposure8

  • Efficacy in the extension phase from Week 48 through Week 96 was calculated using a missing=excluded (M=E) analysis

Study 18781

BIKTARVY (n=290)
ATV- or DRV- based  Regimen  (n=287)
Median age, years (range)
48 (20-74)
47 (21-79)
Sex
Male, %
84
82
Female, %
16
18
Race
White, %
65
66
Black %
27
25
Asian, %
2
3
Hispanic/Latino, %
21
16
Median eGFRCG, mL/min (IQR)
107  (87.0-124.2)
105  (87.1-125.3)
Baseline ARV regimen
FTC/TDF, ABC/3TC, %
84, 16
85, 15
DRV, ATV %
57, 43
54, 46

Retrospective Analysis of Preexisting Resistance at Baseline in Studies 1844 & 18782,*,†

BIKTARVY Arms From Studies 1844 & 1878 N=519 (IN) N=543 (RT/PR)

INSTI, % 2.5
NRTI, % 16.4
NNRTI, % 22.8
PI, % 10.1
T97A, % 1.7
1 or 2 TAMs, % 6.4
K103N/S, % 11.8
Q148H, % 0.2
M184V/I, % 9.9
E138A/K/Q, % 4.6
K65R/N, % 1.3
  • Historical genotype records were assessed at screening, and documented resistance to study drugs or evidence of previous virologic failure led to exclusion. Retrospective deep sequencing analysis was later attempted on baseline samples from all BIKTARVY-treated participants.

*This list is not inclusive of all RAMs observed in this analysis.2

BIKTARVY is not indicated for patients with known or suspected substitutions associated with resistance to bictegravir or tenofovir.3

Retrospective deep sequencing data were combined with the population sequencing data from screening.

3TC, lamivudine; ABC, abacavir; ATV, atazanavir; CD4, cluster of differentiation 4; DRV, darunvavir; eGFRCG, estimated glomerular filtration rate (Cockcroft-Gault); FTC, emtricitabine; IN, integrase; INSTI, integrase strand transfer inhibitor; IQR, interquartile range; NRTI, nucleoside reverse transcriptase inhibitor; NNRTI, non-nucleoside reverse transcriptase inhibitor; PI, protease inhibitor; PR, protease; RAM, resistance-associated mutation; RT, reverse transcriptase; TAF, tenofovir alafenamide; TAM, thymidine-associated mutation; TDF, tenofovir disoproxil fumarate.

References: 1. Daar ES, DeJesus E, Ruane P, et al. Efficacy and safety of switching to fixed-dose bictegravir, emtricitabine, and tenofovir alafenamide from boosted protease inhibitor-based regimens in virologically suppressed adults with HIV-1: 48 week results of a randomised, open-label, multicentre, phase 3, non-inferiority trial. Lancet HIV. 2018;5(7):e347-e356. 2. Andreatta K, Willkom M, Martin R, et al. Switching to bictegravir/emtricitabine/tenofovir alafenamide maintained HIV-1 RNA suppression in participants with archived antiretroviral resistance including M184V/I. J Antimicrob Chemother. 2019;74(12):3555-3564. 3. BIKTARVY. Prescribing information. Gilead Sciences, Inc.; 2024.

Study 1878: Efficacy

Powerful efficacy in virologically suppressed adults at 2 years1,7,8

92% of adults who switched to BIKTARVY maintained virologic suppression at Week 48

Virologic Response in Study 18781,7

*ABC/3TC or FTC/TDF + boosted ATV or DRV (cobicistat or ritonavir) regimen.

Treatment difference in HIV-1 RNA ≥50 copies/mL (95% confidence interval, P value).

Durable viral suppression at Week 968

In the extension from Week 48, using an M=E analysis, virologic suppression was maintained in 100% of study participants on BIKTARVY (n=318) at Week 96 from BIKTARVY switch.8

  • In an M=E analysis, participants with missing data are excluded when calculating the proportion of participants with HIV-1 RNA <50 copies/mL

Study 1844 and 1878: Resistance

Zero cases of resistance to BIKTARVY through 3 years in virologically suppressed adults1,4,5,7,8,10,‡

Among 572 virologically suppressed adults randomized to BIKTARVY in Studies 1844 and 1878 through Week 48, 2 participants with virologic rebound had genotypic and phenotypic data (1 for RT, 1 for IN and RT). No treatment-emergent resistance to BIKTARVY was detected through Week 48.1,4,7,10

In the extension phases:

  • Study 1844 open-label extension: 524 virologically suppressed adults participated; 259 were continuing BIKTARVY and 265 switched to BIKTARVY at Week 48. No treatment-emergent resistance to BIKTARVY was detected through Week 168, including in the 1 participant who switched to BIKTARVY and met the criteria for resistance analysis.5,11
  • Study 1878 extension: 516 virologically suppressed adults participated; 272 were continuing BIKTARVY and 244 switched to BIKTARVY at Week 48. No treatment-emergent resistance to BIKTARVY was detected through Week 96, including in the 3 participants who switched to BIKTARVY and met the criteria for resistance analysis.8,12

Based on the resistance analysis population.

IMPORTANT SAFETY INFORMATION (cont’d)

Warnings and precautions

  • Drug interactions: See Contraindications and Drug Interactions sections. Consider the potential for drug interactions prior to and during BIKTARVY therapy and monitor for adverse reactions.
  • Immune reconstitution syndrome, including the occurrence of autoimmune disorders with variable time to onset, has been reported.

Study 4030: Study Design

BIKTARVY vs DTG+FTC/TAF in virologically suppressed adults with HIV, including those with NRTI resistance1,13

Phase 3, Randomized, Double-Blind, Active-Controlled Study

Study Conducted: June 2017−February 202114

Primary endpoint

Proportion of adults with HIV-1 RNA ≥50 copies/mL at Week 48 (NI margin 4%) using FDA snapshot algorithm13

Secondary endpoint

Proportion of adults with HIV-1 RNA <50 copies/mL at Week 48 (NI margin 10%) using FDA snapshot algorithm13

Study design randomization

Randomization was stratified by NRTI backbone at screening (FTC/TAF vs FTC/TDF) and documented or suspected history of NRTI resistance.

Study 40301

BIKTARVY (n=284)
DTG+FTC/TAF  (n=281)
Median age, years (range)
51  (22-79)
50  (20-79)
Sex
Male, %
86
85
Female, %
14
15
Race
White, %
71
72
Black, %
24
22
Other, %
3
5
Asian, %
1
1
Native Hawaiian or Pacific Islander, %
1
<1
Hispanic/Latino, %
22
18
Median eGFRCG, mL/min (IQR)
97  (79-114)
100  (83-124)
HIV/HBV coinfection, %
5
2
HIV/HCV coinfection, %
<1
2
NRTI backbone stratum
FTC/TAF, %
68
69
FTC/TDF, %
32
31
BMI, kg/m2, median (IQR)
26  (24-31)
27  (24-31)

Reference: 1. Sax PE, Rockstroh JK, Luetkemeyer AF, et al; GS-US-380-4030 Investigators. Switching to bictegravir, emtricitabine, and tenofovir alafenamide in virologically suppressed adults with human immunodeficiency virus. Clin Infect Dis. 2021;73(2):e485-e493.

Frequency of Baseline Primary Resistance-Associated Substitutions in Study 40301,*,†

n (%)
BIKTARVY (n=284)
DTG+FTC/TAF (n=281)
NRTI
63 (26%)
55 (24%)
M184V/I
47 (20%)
34 (15%)
K65R
3 (1%)
2 (1%)
1-2 TAMs
16 (7%)
16 (7%)
≥3 TAMs
16 (7%)
17 (7%)
NNRTI
61 (26%)
57 (25%)
K103N/S
37 (16%)
28 (12%)
E138A/G/K/Q/R
5 (2%)
12 (5%)
PI
15 (6%)
23 (10%)
INSTI
15 (7%)
5 (3%)
T97A
8 (4%)
4 (2%)
R263K
2 (1%)
0 (0%)
Q148H
1 (0.5%)
0 (0%)

*This list is not inclusive of all RAMs observed in the analysis.1

BIKTARVY is not indicated for patients with known or suspected substitutions associated with resistance to bictegravir or tenofovir.2

The denominators for analysis are the number of participants with available data for PR/RT (238 for BIKTARVY arm and 232 for the DTG+FTC/TAF arm) and IN (213 for the BIKTARVY arm and 200 for the DTG+FTC/TAF arm).

Historical and retrospective proviral baseline data, if available, were combined for baseline resistance analyses1

  • At screening, 50% (n=285/565) of participants had historical genotypes of plasma HIV-1 RNA available1
  • 69% (n=391/565) of participants had results available from retrospective baseline proviral DNA genotypes from participants with whole blood samples (n=478) using next generation sequencing of the HIV-1 polymerase region1,§
  • Overall, 83% (n=470/565) of participants had baseline genotypic data available1

§Many assay failures were because of insufficient sample volume.

Preexisting M184V/I Resistance Mutation at Baseline

Frequency of Baseline M184V/I Resistance Mutation in Participants With RT/PR data1,||

Overall  (n=470)
BIKTARVY  (n=238)
DTG+FTC/TAF  (n=232)
M184V/I, n (%)
81 (17%)
47 (20%)
34 (15%)
By historical genotype
41 (9%)
22 (9%)
19 (8%)
By proviral DNA
57 (12%)
35 (35%)
22 (9%)

||Substitutions were detected by historical genotype, retrospective proviral DNA archive genotype, or both.

Reference: 1. Acosta RK, Willkom M, Andreatta K, et al. Switching to bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) from dolutegravir (DTG)+F/TAF or DTG+F/tenofovir disoproxil fumarate (TDF) in the presence of pre-existing NRTI resistance. J Acquir Immune Defic Syndr. 2020;85(3):363-371. 2. BIKTARVY. Prescribing information. Gilead Sciences, Inc.; 2024.

Study 4030: Efficacy

Powerful efficacy in virologically suppressed adults at Week 48, regardless of preexisting M184V/I resistance mutation13

93% of adults who switched to BIKTARVY maintained virologic suppression at Week 4813

Virologic Response in Study 4030

*Treatment difference in HIV-1 RNA ≥50 copies/mL (95% confidence interval).

Virologic Outcome at Week 48: M184V/I Subgroup Analysis

47 study participants randomized to BIKTARVY had M184V/I at baseline

  • 89% (n=42/47) of study participants who switched to BIKTARVY remained virologically suppressed at Week 481
  • 11% (n=5/47) of study participants who switched to BIKTARVY did not have virologic data at Week 481
  • All study participants with M184V/I at baseline who switched to BIKTARVY and had virologic data at Week 48 remained virologically suppressed (n=42)1

Predictors of Preexisting M184V/I Resistance Mutation by Post-hoc Analysis*

Statistically Significant Independent Predictors of Preexisting M184V/I Resistance1, †

M184V/I Present
Odds Ratio  (95% CI)
P
Time since ART start (per year)
1.1 (1.1-1.2)
<0.0001
Prior PI-containing regimen
2.2 (1.1-4.3)
0.0189
Black race (vs non-Black)
2.5 (1.4-4.6)
0.0026
History of PI resistance
2.6 (1.1-6.0)
0.0295
History of NNRTI resistance
2.7 (1.5-4.7)
0.0007

*Stepwise logistic regression was conducted (n=470 with a historical or proviral genotype). The significance level for entry into the model = 0.20: the significance level for staying in the model = 0.05

The predictors considered for model selection were intrinsic factors (age group, sex, race group, ethnicity group, BMI category, CKD stage, and region [US vs non-US]) and HIV specific factors at baseline (CD4 count category, HIV-1 RNA category, HIV acquisition risk factor, HIV disease status, time since ART start, prior use of each class of ART third agent, number of prior agents, baseline ARV regimen and its duration, and PI or NNRTI resistance at baseline).

Reference: 1. Acosta RK, Willkom M, Andreatta K, et al. Switching to bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) from dolutegravir (DTG)+F/TAF or DTG+F/tenofovir disoproxil fumarate (TDF) in the presence of pre-existing NRTI resistance. J Acquir Immune Defic Syndr. 2020;85(3):363-371.

Study 4030: Resistance

Zero cases of resistance to BIKTARVY through 48 weeks, including those with preexisting M184V/I resistance mutation13,‡

Among the 284 virologically suppressed adults randomized to BIKTARVY in Study 4030 through Week 48, 0 participants met the criteria for resistance analysis, and no treatment-emergent resistance to BIKTARVY was detected through Week 48.13

Based on the final resistance analysis population.

IMPORTANT SAFETY INFORMATION (cont’d)

Warnings and precautions

  • Drug interactions: See Contraindications and Drug Interactions sections. Consider the potential for drug interactions prior to and during BIKTARVY therapy and monitor for adverse reactions.
  • Immune reconstitution syndrome, including the occurrence of autoimmune disorders with variable time to onset, has been reported.

Study 1961: Study Design

BIKTARVY vs an INSTI- or PI-based regimen in virologically suppressed adult women2,15

Phase 3, Randomized, Open-Label, Active-Controlled Study

Study Conducted: February 2016—November 201816

Primary endpoint

Proportion of participants with HIV-1 RNA ≥50 copies/mL at Week 48 (NI margin 4%) using the FDA snapshot algorithm15

Extension phase

The objective of the extension phase from Week 48 through Week 96 was to evaluate the efficacy and safety of BIKTARVY after additional exposure2

  • At Week 48, the women receiving an INSTI- or PI-based regimen at baseline were switched to BIKTARVY, and an additional analysis was performed at Week 96
  • Efficacy in the extension phase from Week 48 through Week 96 was calculated using a missing=excluded (M=E) analysis

Study 19611,2: Selected Population Characteristics

BIKTARVY (n=234)
INSTI- or PI- based Regimen  (n=236)
Median age, years (range)
39 (21-63)
40 (20-63)
Sex
Female, %
100
100
Race
Black, %
39
35
White, %
28
28
Asian, %
21
23
Other, %
12
14
Hispanic/Latino, %
15
16
Median eGFRCG, mL/min (IQR)
99.6  (82.8-115.8)
102.0  (85.8-124.5)
Baseline ARV regimen
E/C/F/TAF, %
53
53
E/C/F/TDF, %
42
42
ATV+RTV+ FTC/TDF, %
5
6

ARV, antiretroviral; ATV, atazanavir; C, cobicistat; E, elvitegravir; eGFRCG, estimated glomerular filtration rate (Cockcroft-Gault); F, emtricitabine; FTC, emtricitabine; INSTI, integrase strand transfer inhibitor; IQR, interquartile range.

References: 1. Kityo C, Hagins D, Koenig E, et al. Switching to fixed-dose bictegravir, emtricitabine, and tenofovir alafenamide (B/F/TAF) in virologically suppressed HIV-1 infected women: a randomized, open-label, multicenter, active-controlled, phase 3, noninferiority trial. J Acquir Immune Defic Syndr. 2019;82(3);321-328. 2. Data on file. Gilead Sciences, Inc.

Study 1961: Efficacy

Powerful efficacy in virologically suppressed adult women at 2 years2,12,15

Virologic Response in Study 196112,15,*

*Percentages do not total 100% due to rounding.

E/C/F/TAF or E/C/F/TDF or ATV+RTV+FTC/TDF.

Treatment difference in HIV-1 RNA ≥50 copies/mL (95% confidence interval, P value).

Treatment outcomes between treatment groups were similar across subgroups by age, race, and region at Week 4815

Durable viral suppression at Week 962

In a 48-week extension phase from Week 48, using an M=E analysis, virologic suppression was maintained at Week 96 in 99.5% of participants who stayed on BIKTARVY (n=208) and 98.5% of participants who switched to BIKTARVY (n=194) at Week 48.2

  • In an M=E analysis, participants with missing data are excluded when calculating the proportion of study participants with HIV-1 RNA <50 copies/mL

Study 1961: Resistance

Zero cases of resistance to BIKTARVY through 2 years in virologically suppressed adult women2,15,§

Among 234 virologically suppressed adult women randomized to BIKTARVY in Study 1961 through Week 4815:

  • 1 participant met the criteria for resistance analysis
  • No treatment-emergent resistance to BIKTARVY was detected through Week 48

459 virologically suppressed adult women participated in the extension phase of Study 1961. 231 of them continued on BIKTARVY and 228 switched to BIKTARVY at Week 482:

  • No treatment-emergent resistance to BIKTARVY was detected through Week 96, including in the 3 participants who switched to BIKTARVY and met the criteria for resistance analysis

§Based on the final resistance analysis population.

IMPORTANT SAFETY INFORMATION (cont’d)

Adverse reactions

  • Most common adverse reactions (incidence ≥5%; all grades) in clinical studies through week 144 were diarrhea (6%), nausea (6%), and headache (5%).

Study 4449: Study Design

BIKTARVY in virologically suppressed adults aged ≥65 years17,18

Phase 3b, Open-Label, Single-Arm Study

Study Conducted: March 2018—May 202019
Primary endpoint

Proportion of participants with HIV-1 RNA <50 copies/mL at Week 24 using the FDA snapshot algorithm17

Secondary endpoints
  • Efficacy at Weeks 48, 72, and 96 using the FDA snapshot algorithm18
  • Safety and tolerability through Week 9618

Study 44491: Selected Population Characteristics

BIKTARVY (n=86)
Median age, years (range)
69 (65-80)
Sex
Male %
87
Female, %
13
Race
White, %
95
Black %
1
Not permited to be disclosed, %
4
Hispanic/Latino, %
14
Median eGFRCG, mL/min (IQR)
76  (39.6-130.2)
Baseline ARV regimen
E/C/F/TAF, %
92
RPV/F/TDF, %
5
EFV/F/TDF, %
1
E/C/F/TDF, %
1
NVP+F/TDF, %
1

C, cobicistat; E, elvitegravir; EFV, efavirenz; eGFRCG, estimated glomerular filtration rate (Cockcroft-Gault); F, emtricitabine; IQR, interquartile range; NVP, nevirapine; RPV, rilpivirine; TAF, tenofovir alafenamide; TDF, tenofovir disoproxil fumarate.

Reference: 1. Maggiolo F, Rizzardini G, Molina J-M, et al. Bictegravir/emtricitabine/tenofovir alafenamide in virologically suppressed people with HIV aged ≥65 years: week 48 results of a phase 3b, open-label trial. Infect Dis Ther. 2021;10(2):775-788.

Study 4449: Efficacy

Powerful efficacy in virologically suppressed adults aged ≥65 years at 2 years17,18,20

Virologic Response in Study 4449

At Week 96, 11 study participants did not have data due to the COVID-19 pandemic and restrictions on clinic/study visits. All were suppressed at their last visit.18

Study 4449: Resistance

Zero cases of resistance to BIKTARVY through 2 years in virologically suppressed adults aged ≥65 years17,18,§

Among 86 virologically suppressed adults aged ≥65 years in Study 4449 through Week 9617,18,§:

  • No treatment-emergent resistance to BIKTARVY was detected through Week 96. No participants met the criteria for resistance analysis

§Based on the resistance analysis population.

IMPORTANT SAFETY INFORMATION (cont’d)

Drug interactions

  • Prescribing information: Consult the full prescribing information for BIKTARVY for more information on Contraindications, Warnings, and potentially significant drug interactions, including clinical comments.

Study 1474: Study Design

BIKTARVY in virologically suppressed children and adolescents1,21,22

Phase 2/3, Single-Arm, Open-Label, Multi-Cohort Study

Study Conducted: September 2016—December 2024 (Estimated Completion)23

*Cohort 3 received low-dose BIKTARVY (bictegravir 30 mg, emtricitabine 120 mg, tenofovir alafenamide 15 mg).

Primary endpoint

Determination of plasma PK and evaluation of safety and tolerability through Week 241,21,22

Secondary endpoints

Proportion of children and adolescents with HIV-1 RNA <50 copies/mL at Week 24 using the FDA snapshot algorithm22

  • Efficacy, safety, and tolerability were also evaluated at Week 48
Extension phase (Cohorts 1 & 2)

Efficacy in the extension phase from Week 48 to Week 96 was calculated using missing=excluded (M=E) and missing=failure (M=F) analyses22

  • Safety and tolerability were also evaluated through Week 96

Study 14741-3: Selected Population Characteristics

Cohort 1 (aged ≥12 to <18 years, ≥35 kg; n=50)
Cohort 2 (aged ≥6 to <12 years, ≥25 kg; n=50)
Cohort 3 (≥2 years, ≥14 kg to <25 kg; n=22)
Median age, years (range)
15 (12-17)
10 (6-11)
6 (3-9)
Sex
Male, %
36
46
50
Female, %
64
54
50
Race
Black, %
65
72
73
Asian, %
27
22
23
Native Hawaiian or Other Pacific Islander, %
2
0
0
White, %
2
4
0
Other, %
4
2
5
Hispanic/Latino, %
4
0
eGFR (Schwartz), mL/min (IQR)
145  (134.0-170.0)
153.5  (144.0-173.0)
160.5  (145.0-168.0)
Antiretroviral regimen before enrollment
Multiple tablets, %
70
92
Twice-daily dosing, %
48
72

IQR, interquartile range.

References: 1. BIKTARVY. Prescribing information. Gilead Sciences, Inc.; 2024. 2. Gaur AH, Cotton MF, Rodriguez CA, et al. Fixed-dose combination bictegravir, emtricitabine, and tenofovir alafenamide in adolescents and children with HIV: week 48 results of a single-arm, open-label, multicentre, phase 2/3 trial. Lancet Child Adolesc Health. 2021;5(9):642-651. 3. Natukunda E, Rodriguez CA, McGrath EJ, et al. B/F/TAF in virologically suppressed adolescents and children: two-year outcomes in 6 to <18 year olds and six-month outcomes in toddlers. Abstract presented at: International Workshop on HIV & Pediatrics. July 16-17, 2021; Virtual. Abstract 2.

Study 1474: Efficacy

Powerful efficacy in virologically suppressed children and adolescents at 2 years1,21,22,24

Virologic Response in Study 1474

  • High rates of virologic suppression were reported using the FDA snapshot algorithm

Durable viral suppression at Week 96 (Cohorts 1 & 2)1,12,21,22

In the extension from Week 48, using an M=E analysis, 99% of children and adolescents (n=96) maintained virologic suppression at Week 96. Using an M=F analysis, 95% (n=100) maintained virologic suppression at Week 96.

  • In an M=E analysis, study participants with missing data are excluded when calculating the proportion of participants with HIV-1 RNA <50 copies/mL. In an M=F analysis, all missing data are treated as treatment failures (HIV-1 RNA ≥50 copies/mL).

Study 1474: Resistance

Zero cases of resistance to BIKTARVY through Week 96 in virologically suppressed children and adolescents1,12,21,22,24,†

Among 100 virologically suppressed children and adolescents aged >6 to <18 years in Study 1474 (Cohorts 1 & 2)1,12,21,22:

  • One participant met criteria for resistance analysis. No treatment-emergent resistance to BIKTARVY was detected through Week 96

Among 22 virologically suppressed children aged ≥2 (weighing ≥14 kg to <25 kg) in Study 1474 (Cohort 3)1,22,24:

  • No treatment-emergent resistance to BIKTARVY was detected through Week 48. No participants met the criteria for resistance analysis

Based on the final resistance analysis population.

IMPORTANT SAFETY INFORMATION (cont’d)

Pregnancy and lactation

  • Pregnancy: There is insufficient human data on the use of BIKTARVY during pregnancy. Dolutegravir, another integrase inhibitor, has been associated with neural tube defects. Discuss the benefit-risk of using BIKTARVY during pregnancy and conception. An Antiretroviral Pregnancy Registry (APR) has been established. Available data from the APR for FTC shows no difference in the rates of birth defects compared with a US reference population.
  • Lactation: Women infected with HIV-1 should be instructed not to breastfeed, due to the potential for HIV-1 transmission.

BRAAVE: Study Design

BIKTARVY vs stable baseline regimen in virologically suppressed Black Americans3,25,26

Randomized Phase 3b, Multicenter, Open-Label Study

Study Conducted: August 2018—August 202027
Primary endpoint

Proportion of adults with HIV-1 RNA ≥50 copies/mL at Week 24 (NI margin 6%) using the FDA snapshot algorithm25,26

Secondary endpoints
  • Proportion of adults with HIV-1 RNA ≥50 copies/mL at Week 48 using the FDA snapshot algorithm25
  • Proportion of adults with HIV-1 RNA <50 copies/mL at Weeks 24 and 4825
Extension phase

The objective of the extension phase from Week 48 to Week 72 was to evaluate the efficacy and safety of switching to BIKTARVY after additional exposure3

COVID-19 Operational Impact: Some visits between Week 48 and Week 72 were virtual due to the COVID-19 pandemic

BRAAVE 20201,2: Selected Population Characteristics

BIKTARVY (n=330)
SBR (n=165)
Median age, years (range)
49 (18-79)
49 (19-70)
Sex assigned at birth, %
Male, %
69
67
Female, %
31
33
Gender identity
Cisgender person, %
96
96
Transgender person, %
2
4
Ethnicity
Hispanic/Latino, %
5
3
Race
Self-described as Black American, or mixed race that includes Black, %
100
100
Median eGFRCG, mL/min (IQR)
110  (88-132)
107  (86-132)
Median CD4 count, cells/µL (IQR)
747  (570-922)
758  (494-969)
Baseline NRTI backbone
F/TAF, %
68
65
F/TDF, %
17
21
Abacavir/lamivudine, %
13
15
Other, %
1
0
Baseline 3rd agent
EVG/c, %
38
35
DTG, %
20
24
RPV, %
19
16
EFV, %
10
13
DRV/c or DRV/r, %
5
7
Other, %
8
5

Frequency of Baseline Primary Resistance-Associated Substitutions1,3,4,*,†

Baseline Resistance*
BIKTARVY (n=330)
SBR (n=165)
NRTI, %
13
16
K65R, %
1
1
M184V/I, %
9
12
1-2 TAMs, %
5
5
NNRTI, %
21
19
K103N/S, %
10
12
E138A/G/K/Q/R, %
5
2
PI, %
11
16
INSTI, %
2
2
Q148H/K/R, %
1
0
  • Preexisting drug resistance was assessed by cumulative historical genotype and/or proviral DNA genotypes performed retrospectively from baseline samples. Resistance to NNRTIs, PIs, and/or certain NRTIs (excluding K65R/E/N, ≥3 TAMs, and T69 insertions) was permitted; primary INSTI resistance was excluded.1,3,5

*This list is not inclusive of all RAMs observed in this analysis.3

BIKTARVY is not indicated for patients with known or suspected substitutions associated with resistance to bictegravir or tenofovir.6

RAM, resistance-associated mutation; TAM, thymidine-associated mutation.

References: 1. Hagins D, Kumar P, Saag M, et al. Switching to bictegravir/emtricitabine/tenofovir alafenamide in Black Americans with HIV-1: a randomized phase 3b, multicenter, open-label study. J Acquir Immune Defic Syndr. 2021;88(1):86-95. 2. Hagins DP, Kumar PN, Saag M, et al. Randomized switch to B/F/TAF in African American adults with HIV. Oral abstract presented at: Conference on Retroviruses and Opportunistic Infections; March 8-11, 2020; Boston, MA. Abstract 36. 3. Andreatta K, D’Antoni ML, Chang S, et al. Preexisting resistance and week 48 virologic outcomes after switching to B/F/TAF in African American adults with HIV. Oral presentation at: IDWeek 2020; October 21-25, 2020; Virtual. Oral abstract 109. 4. Data on file. Gilead Sciences, Inc. 5. Kumar P, Stephens JL, Wurapa AK, et al. Week 72 outcomes and Covid-19 impact from the BRAAVE 2020 study: a randomized switch to B/F/TAF in Black American adults with HIV. Poster presented at: International AIDS Society Conference on HIV Science; July 18-21, 2021; Virtual. Poster PEB161. 6. BIKTARVY. Prescribing information. Gilead Sciences, Inc.; 2024.

BRAAVE: Efficacy

Powerful efficacy in virologically suppressed Black Americans at 72 Weeks3,25

Switching to BIKTARVY in Black Americans was noninferior to staying on a baseline regimen at Week 24

Virologic Response in BRAAVE25,26,*

*Percentages do not total 100% due to rounding.
Two participants were found to have baseline INSTI resistance based on historical genotype data and were excluded from the primary analysis because of this protocol violation.

Treatment outcomes between treatment groups were similar across subgroups by age and sex at Week 24.25

Durable viral suppression at Week 723

In a 24-week extension from Week 48 through Week 72 using an M=E analysis, virologic suppression was maintained at Week 72 in 99% of participants who stayed on BIKTARVY (n=248) and 100% of participants who switched to BIKTARVY (n=127) at Week 24.3

  • In an M=E analysis, participants with missing data are excluded when calculating the proportion of participants with HIV-1 RNA <50 copies/mL

BRAAVE: Resistance

Zero cases of resistance to BIKTARVY through Week 72 in virologically suppressed Black Americans3,25,28,‡

Among 330 virologically suppressed adults randomized to BIKTARVY in BRAAVE through Week 24, 1 participant met criteria for resistance analysis and no treatment-emergent resistance to BIKTARVY was detected through Week 24.25

At Week 24, 320 participants continued BIKTARVY and 163 switched to BIKTARVY. Of these participants, 469 participants completed the study drug or chose to remain in the extension phase at Week 48. No additional participant was analyzed for resistance, and no treatment-emergent resistance to BIKTARVY was detected through Week 72.3,25,28

Based on the final resistance analysis population.


Patient Brochure

BIKTARVY Patient Brochure

The brochure provides information about BIKTARVY and how it can help your patients, whether they are new to treatment or switching from another regimen, reach important HIV health goals like staying undetectable.

Download BIKTARVY Patient Brochure (English) Download BIKTARVY Patient Brochure (Español)

Please see full Prescribing Information for BIKTARVY® and DESCOVY®, including BOXED WARNINGS.

3TC, lamivudine; ABC, abacavir; ATV, atazanavir; BIC, bictegravir; C, cobicistat; DRV, darunavir; DTG, dolutegravir; E/EVG, elvitegravir; eGFRCG, estimated glomerular filtration rate (Cockcroft-Gault); F, emtricitabine; FDA, US Food and Drug Administration; FTC, emtricitabine; HBV, hepatitis B virus; HCV, hepatitis C virus; INSTI, integrase strand transfer inhibitor; IQR, interquartile range; M=E, missing=excluded; M=F, missing=failure; NI, noninferiority; NRTI, nucleoside reverse transcriptase inhibitor; OLE, open-label extension; PK, pharmacokinetics; QD, once daily; RNA, ribonucleic acid; RPV, rilpivirine; RT, reverse transcriptase; RTV, ritonavir; TAF, tenofovir alafenamide; TDF, tenofovir disoproxil fumarate; TFV, tenofovir.

References: 1. BIKTARVY. Prescribing information. Gilead Sciences, Inc.; 2024. 2. Kityo C, Hagins D, Koenig E, et al. Longer-term (96-week) efficacy and safety of switching to bictegravir, emtricitabine, and tenofovir alafenamide (B/F/TAF) in women. Oral presentation at: International AIDS Society Conference on HIV Science 2019; July 21-24, 2019; Mexico City, Mexico. Abstract MOAB0106. 3. Kumar P, Stephens JL, Wurapa AK, et al. Week 72 outcomes and Covid-19 impact from the BRAAVE 2020 study: a randomized switch to B/F/TAF in Black American adults with HIV. Poster presented at: International Aids Society Conference on HIV Science; July 18-21, 2021; Virtual. Poster PEB161. 4. Molina J-M, Ward D, Brar I, et al. Switching to fixed-dose bictegravir, emtricitabine, and tenofovir alafenamide from dolutegravir plus abacavir and lamivudine in virologically suppressed adults with HIV-1: 48 week results of a randomised, double-blind, multicentre, active-controlled, phase 3, non-inferiority trial. Lancet HIV. 2018;5(7):e357-e365. 5. Brar I, Ruane P, Ward D, et al. Long-term follow-up after a switch to bictegravir, emtricitabine, and tenofovir alafenamide from dolutegravir, abacavir, and lamivudine. Poster presented at: IDWeek; October 21-25, 2020; Virtual. Poster 1028. 6. Safety and efficacy of switching from dolutegravir and ABC/3TC or ABC/DTG/3TC to B/F/TAF in HIV-1 infected adults who are virologically suppressed. ClinicalTrials.gov identifier: NCT02603120. Updated November 12, 2020. Accessed January 9, 2023. https://clinicaltrials.gov/ct2/show/NCT02603120 7. Daar ES, DeJesus E, Ruane P, et al. Efficacy and safety of switching to fixed-dose bictegravir, emtricitabine, and tenofovir alafenamide from boosted protease inhibitor-based regimens in virologically suppressed adults with HIV-1: 48 week results of a randomised, open-label, multicentre, phase 3, non-inferiority trial. Lancet HIV. 2018;5(7):e347-e356. 8. Rockstroh J, Molina J-M, Post F, et al. Long-term follow-up after a switch to bictegravir, emtricitabine, tenofovir alafenamide (B/F/TAF) from a boosted protease inhibitor-based regimen. Poster presented at: HIV Drug Therapy Glasgow 2020; October 5-8, 2020; Virtual. Poster P036. 9. Study to evaluate the safety and efficacy of switching from regimens consisting of boosted atazanavir or darunavir plus either emtricitabine/tenofovir or abacavir/lamivudine to bictegravir/emtricitabine/tenofovir alafenamide in virologically suppressed HIV-1 infected adults. ClinicalTrials.gov identifier: NCT02603107. Updated December 29, 2020. Accessed December 7, 2022. https://clinicaltrials.gov/ct2/show/NCT02603107 10. Andreatta K, William M, Martin R, et al. Resistance analyses of bictegravir/emtricitabine/tenofovir alafenamide switch studies. Poster presented at: Conference on Retroviruses and Opportunistic Infections; March 4-7, 2018; Boston, MA. Poster 506. 11. Andreatta K, Chang S, Delaney M, et al. Long-term efficacy among participants switched to bictegravir/emtricitabine/tenofovir alafenamide from dolutegravir/abacavir/lamivudine with preexisting resistance and viral blips. Poster presented at: International Aids Society Conference on HIV Science; July 18-21, 2021; Virtual. Poster PEB172. 12. Data on file. Gilead Sciences, Inc. 13. Sax PE, Rockstroh JK, Luetkemeyer AF, et al; GS-US-380-4030 Investigators. Switching to bictegravir, emtricitabine, and tenofovir alafenamide in virologically suppressed adults with human immunodeficiency virus. Clin Infect Dis. 2021;73(2):e485-e493. 14. 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. ClinicalTrials.gov identifier: NCT03110380. Updated January 11, 2021. Accessed November 17, 2023. https://clinicaltrials.gov/study/NCT03110380 15. Kityo C, Hagins D, Koenig E, et al. Switching to fixed-dose bictegravir, emtricitabine, and tenofovir alafenamide (B/F/TAF) in virologically suppressed HIV-1 infected women: a randomized, open-label, multicenter, active-controlled, phase 3, noninferiority trial. J Acquir Immune Defic Syndr. 2019;82(3);321-328. 16. Safety and efficacy of switching to a FDC of B/F/TAF from E/C/F/TAF, E/C/F/TDF, or ATV+RTV+FTC/TDF in virologically suppressed HIV-1 infected women. ClinicalTrials.gov identifier: NCT02652624. Updated March 4, 2020. Accessed January 9, 2023. https://clinicaltrials.gov/ct2/show/NCT02652624 17. Maggiolo F, Rizzardini G, Molina J-M, et al. Bictegravir/emtricitabine/tenofovir alafenamide in virologically suppressed people with HIV aged ≥65 years: week 48 results of a phase 3b, open-label trial. Infect Dis Ther. 2021;10(2):775-788. 18. Maggiolo F, Rizzardini G, Molina J-M, et al. Switching to bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) in adults aged 65 years or older: Week 96 results from an international, phase 3b, open-label trial (GS-US-380-4449). Poster presented at: IAS 2021; July 18-21, 2021; Virtual. Poster PEB160. 19. 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. ClinicalTrials.gov identifier: NCT03405935. Updated December 1, 2020. Accessed January 9, 2023. https://clinicaltrials.gov/ct2/show/NCT03405935 20. Maggiolo F, Rizzardini G, Molina J-M, et al. Switching to bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) in adults aged ≥65 years: week 72 results from a phase 3b, open-label trial (GS-US-380-4449). Poster presented at: HIV Drug Therapy Glasgow. 2020; October 5-8, 2020; Glasgow, UK. Poster P038. 21. Gaur AH, Cotton MF, Rodriguez CA, et al. Fixed-dose combination bictegravir, emtricitabine, and tenofovir alafenamide in adolescents and children with HIV: week 48 results of a single-arm, open-label, multicentre, phase 2/3 trial. Lancet Child Adolesc Health. 2021;5(9):642-651. 22. Natukunda E, Rodriguez CA, McGrath EJ, et al. B/F/TAF in virologically suppressed adolescents and children: two-year outcomes in 6 to <18 year olds and six-month outcomes in toddlers. Abstract presented at: International Workshop on HIV & Pediatrics. July 16-17, 2021; Virtual. Abstract 2. 23. Study of bictegravir/emtricitabine/tenofovir alafenamide fixed dose combination in adolescents and children with human immunodeficiency virus-1. ClinicalTrials.gov identifier: NCT02881320. Updated August 8, 2023. Accessed August 31, 2023. https://clinicaltrials.gov/study/NCT02881320 24. Rodriguez CA, Strehlau R, Chokephaibulkit K, et al. One year outcome of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) in virologically suppressed children ≥ 2 years weighing 14 to < 25 kg. Oral presentation at: International Workshop on HIV & Pediatrics 2022; July 27-28, 2022; Montreal, Quebec, Canada. Oral 2. 25. Hagins D, Kumar P, Saag M, et al. Switching to bictegravir/emtricitabine/tenofovir alafenamide in Black Americans with HIV-1: a randomized phase 3b, multicenter, open-label study. J Acquir Immune Defic Syndr. 2021;88(1):86-95. 26. Hagins DP, Kumar PN, Saag M, et al. Randomized switch to B/F/TAF in African American adults with HIV. Oral abstract presented at: Conference on Retroviruses and Opportunistic Infections; March 8-11, 2020; Boston, MA. Abstract 36. 27. 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 (BRAAVE 2020). ClinicalTrials.gov identifier: NCT03631732. Updated September 5, 2021. Accessed January 9, 2023. https://clinicaltrials.gov/ct2/show/NCT03631732 28. Andreatta K, D’Antoni ML, Chang S, et al. High efficacy of bictegravir/emtricitabine/tenofovir alafenamide in African-American adults with HIV including those with preexisting resistance, viral blips, and suboptimal adherence. Presented at: IDWeek 2021; September 29-October 3, 2021; Virtual. Poster 629.