Trial Outcomes & Findings for Study to Evaluate the Pharmacokinetics (PK), Safety, and Efficacy of B/F/TAF in Human Immunodeficiency Virus (HIV)-1 Infected, Virologically Suppressed, Pregnant Women in Their Second and Third Trimesters (NCT NCT03960645)

NCT ID: NCT03960645

Last Updated: 2024-06-14

Results Overview

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

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

62 participants

Primary outcome timeframe

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

Results posted on

2024-06-14

Participant Flow

Participants were enrolled at study sites in the Dominican Republic, Thailand and the United States.

33 pregnant women were enrolled in the B/F/TAF group. Neonates born to these women were also enrolled in the study for follow up. A total of 29 neonate participants were enrolled.

Participant milestones

Participant milestones
Measure
B/F/TAF
Pregnant women participants received fixed dose combination (FDC) tablet of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
Neonates
Neonates born to women participants in the study were followed from birth up to 8 weeks of age after obtaining consent from the parent or legal guardian. None of the neonates participating in the study were treated with the study drug.
Overall Study
STARTED
33
29
Overall Study
COMPLETED
32
29
Overall Study
NOT COMPLETED
1
0

Reasons for withdrawal

Reasons for withdrawal
Measure
B/F/TAF
Pregnant women participants received fixed dose combination (FDC) tablet of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
Neonates
Neonates born to women participants in the study were followed from birth up to 8 weeks of age after obtaining consent from the parent or legal guardian. None of the neonates participating in the study were treated with the study drug.
Overall Study
Protocol Violation
1
0

Baseline Characteristics

Study to Evaluate the Pharmacokinetics (PK), Safety, and Efficacy of B/F/TAF in Human Immunodeficiency Virus (HIV)-1 Infected, Virologically Suppressed, Pregnant Women in Their Second and Third Trimesters

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
B/F/TAF
n=33 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
Neonates
n=29 Participants
Neonates born to women participants in the study were followed from birth up to 8 weeks of age after obtaining consent from the parent or legal guardian. None of the neonates participating in the study were treated with the study drug.
Total
n=62 Participants
Total of all reporting groups
Age, Continuous
30 years
STANDARD_DEVIATION 5.0 • n=5 Participants
0 years
STANDARD_DEVIATION 0.0 • n=7 Participants
16 years
STANDARD_DEVIATION 15.5 • n=5 Participants
Sex: Female, Male
Female
33 Participants
n=5 Participants
10 Participants
n=7 Participants
43 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
19 Participants
n=7 Participants
19 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=5 Participants
4 Participants
n=7 Participants
8 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
29 Participants
n=5 Participants
25 Participants
n=7 Participants
54 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · Asian
25 Participants
n=5 Participants
24 Participants
n=7 Participants
49 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · Black
6 Participants
n=5 Participants
4 Participants
n=7 Participants
10 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · Other
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · White
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Region of Enrollment
Thailand
25 Participants
n=5 Participants
24 Participants
n=7 Participants
49 Participants
n=5 Participants
Region of Enrollment
United States
5 Participants
n=5 Participants
2 Participants
n=7 Participants
7 Participants
n=5 Participants
Region of Enrollment
Dominican Republic
3 Participants
n=5 Participants
3 Participants
n=7 Participants
6 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 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

Population: PK analysis set included all enrolled adult participants who took at least 1 dose of study drug (B/F/TAF), and had at least 1 non-missing concentration value reported by the PK laboratory for the corresponding analytes (BIC, FTC, TAF, and tenofovir diphosphate \[TFV-DP\]). Participants in the PK analysis set with available data were analyzed.

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

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
Pharmacokinetic (PK) Parameter: AUCtau of Bictegravir (BIC)
Second Trimester
62772.2 hours*nanograms per milliliter (h*ng/mL)
Standard Deviation 20242.18
Pharmacokinetic (PK) Parameter: AUCtau of Bictegravir (BIC)
Third Trimester
60163.4 hours*nanograms per milliliter (h*ng/mL)
Standard Deviation 17482.06
Pharmacokinetic (PK) Parameter: AUCtau of Bictegravir (BIC)
Week 6 Post-partum
134820.3 hours*nanograms per milliliter (h*ng/mL)
Standard Deviation 36217.30
Pharmacokinetic (PK) Parameter: AUCtau of Bictegravir (BIC)
Week 12 Post-partum
148251.6 hours*nanograms per milliliter (h*ng/mL)
Standard Deviation 42189.17

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

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

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: AUCtau of Emtricitabine (FTC) and Tenofovir Alafenamide (TAF)
FTC: Third Trimester
10435.2 h*ng/mL
Standard Deviation 2121.87
PK Parameter: AUCtau of Emtricitabine (FTC) and Tenofovir Alafenamide (TAF)
FTC: Week 6 Post-partum
16277.5 h*ng/mL
Standard Deviation 4023.42
PK Parameter: AUCtau of Emtricitabine (FTC) and Tenofovir Alafenamide (TAF)
FTC: Week 12 Post-partum
15308.5 h*ng/mL
Standard Deviation 3359.83
PK Parameter: AUCtau of Emtricitabine (FTC) and Tenofovir Alafenamide (TAF)
TAF: Second Trimester
235.5 h*ng/mL
Standard Deviation 107.36
PK Parameter: AUCtau of Emtricitabine (FTC) and Tenofovir Alafenamide (TAF)
TAF: Third Trimester
212.1 h*ng/mL
Standard Deviation 95.38
PK Parameter: AUCtau of Emtricitabine (FTC) and Tenofovir Alafenamide (TAF)
TAF: Week 6 Post-partum
374.3 h*ng/mL
Standard Deviation 153.54
PK Parameter: AUCtau of Emtricitabine (FTC) and Tenofovir Alafenamide (TAF)
TAF: Week 12 Post-partum
296.4 h*ng/mL
Standard Deviation 94.37
PK Parameter: AUCtau of Emtricitabine (FTC) and Tenofovir Alafenamide (TAF)
FTC: Second Trimester
10263.8 h*ng/mL
Standard Deviation 2054.35

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

AUClast is defined as the concentration of drug from time zero to the last observable concentration.

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: AUClast of BIC, FTC, and TAF
BIC: Second Trimester
63187.5 h*ng/mL
Standard Deviation 19814.99
PK Parameter: AUClast of BIC, FTC, and TAF
BIC: Third Trimester
60145.3 h*ng/mL
Standard Deviation 17484.52
PK Parameter: AUClast of BIC, FTC, and TAF
BIC: Week 6 Post-partum
135058.9 h*ng/mL
Standard Deviation 36348.21
PK Parameter: AUClast of BIC, FTC, and TAF
BIC: Week 12 Post-partum
148265.3 h*ng/mL
Standard Deviation 42201.47
PK Parameter: AUClast of BIC, FTC, and TAF
FTC: Second Trimester
10258.5 h*ng/mL
Standard Deviation 2049.53
PK Parameter: AUClast of BIC, FTC, and TAF
FTC: Third Trimester
10434.2 h*ng/mL
Standard Deviation 2121.13
PK Parameter: AUClast of BIC, FTC, and TAF
FTC: Week 6 Post-partum
16329.7 h*ng/mL
Standard Deviation 4095.44
PK Parameter: AUClast of BIC, FTC, and TAF
FTC: Week 12 Post-partum
15308.5 h*ng/mL
Standard Deviation 3359.79
PK Parameter: AUClast of BIC, FTC, and TAF
TAF: Second Trimester
220.4 h*ng/mL
Standard Deviation 98.98
PK Parameter: AUClast of BIC, FTC, and TAF
TAF: Third Trimester
202.2 h*ng/mL
Standard Deviation 84.98
PK Parameter: AUClast of BIC, FTC, and TAF
TAF: Week 6 Post-partum
356.7 h*ng/mL
Standard Deviation 151.27
PK Parameter: AUClast of BIC, FTC, and TAF
TAF: Week 12 Post-partum
294.3 h*ng/mL
Standard Deviation 97.88

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

Cmax is defined as the maximum observed concentration of drug during the dosing interval.

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: Cmax of BIC, FTC, and TAF
BIC: Second Trimester
5819.0 ng/mL
Standard Deviation 1752.29
PK Parameter: Cmax of BIC, FTC, and TAF
BIC: Third Trimester
5374.7 ng/mL
Standard Deviation 1393.86
PK Parameter: Cmax of BIC, FTC, and TAF
BIC: Week 6 Post-partum
9765.5 ng/mL
Standard Deviation 2274.93
PK Parameter: Cmax of BIC, FTC, and TAF
BIC: Week 12 Post-partum
11025.3 ng/mL
Standard Deviation 2747.42
PK Parameter: Cmax of BIC, FTC, and TAF
FTC: Second Trimester
2639.1 ng/mL
Standard Deviation 965.60
PK Parameter: Cmax of BIC, FTC, and TAF
FTC: Third Trimester
2586.0 ng/mL
Standard Deviation 686.42
PK Parameter: Cmax of BIC, FTC, and TAF
FTC: Week 6 Post-partum
3394.8 ng/mL
Standard Deviation 951.83
PK Parameter: Cmax of BIC, FTC, and TAF
FTC: Week 12 Post-partum
3360.0 ng/mL
Standard Deviation 902.47
PK Parameter: Cmax of BIC, FTC, and TAF
TAF: Second Trimester
332.4 ng/mL
Standard Deviation 173.29
PK Parameter: Cmax of BIC, FTC, and TAF
TAF: Third Trimester
270.9 ng/mL
Standard Deviation 113.93
PK Parameter: Cmax of BIC, FTC, and TAF
TAF: Week 6 Post-partum
506.4 ng/mL
Standard Deviation 249.33
PK Parameter: Cmax of BIC, FTC, and TAF
TAF: Week 12 Post-partum
494.6 ng/mL
Standard Deviation 259.51

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

Ctau is defined as the observed drug concentration at the end of the dosing interval.

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: Ctau of BIC and FTC
BIC: Second Trimester
1046.4 ng/mL
Standard Deviation 472.68
PK Parameter: Ctau of BIC and FTC
BIC: Third Trimester
1072.4 ng/mL
Standard Deviation 447.03
PK Parameter: Ctau of BIC and FTC
BIC: Week 6 Post-partum
3530.3 ng/mL
Standard Deviation 1354.20
PK Parameter: Ctau of BIC and FTC
BIC: Week 12 Post-partum
3641.9 ng/mL
Standard Deviation 1241.64
PK Parameter: Ctau of BIC and FTC
FTC: Second Trimester
59.8 ng/mL
Standard Deviation 62.17
PK Parameter: Ctau of BIC and FTC
FTC: Third Trimester
51.4 ng/mL
Standard Deviation 13.98
PK Parameter: Ctau of BIC and FTC
FTC: Week 6 Post-partum
152.1 ng/mL
Standard Deviation 271.50
PK Parameter: Ctau of BIC and FTC
FTC: Week 12 Post-partum
81.1 ng/mL
Standard Deviation 27.34

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

Clast is defined as the last observable concentration of drug.

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: Clast of BIC, FTC, and TAF
BIC: Second Trimester
1141.10 ng/mL
Standard Deviation 631.431
PK Parameter: Clast of BIC, FTC, and TAF
BIC: Third Trimester
1075.13 ng/mL
Standard Deviation 447.847
PK Parameter: Clast of BIC, FTC, and TAF
BIC: Week 6 Post-partum
3535.48 ng/mL
Standard Deviation 1371.162
PK Parameter: Clast of BIC, FTC, and TAF
BIC: Week 12 Post-partum
3641.88 ng/mL
Standard Deviation 1240.605
PK Parameter: Clast of BIC, FTC, and TAF
FTC: Second Trimester
75.08 ng/mL
Standard Deviation 130.792
PK Parameter: Clast of BIC, FTC, and TAF
FTC: Third Trimester
51.65 ng/mL
Standard Deviation 14.182
PK Parameter: Clast of BIC, FTC, and TAF
FTC: Week 6 Post-partum
156.16 ng/mL
Standard Deviation 292.579
PK Parameter: Clast of BIC, FTC, and TAF
FTC: Week 12 Post-partum
81.18 ng/mL
Standard Deviation 27.334
PK Parameter: Clast of BIC, FTC, and TAF
TAF: Second Trimester
4.49 ng/mL
Standard Deviation 5.130
PK Parameter: Clast of BIC, FTC, and TAF
TAF: Third Trimester
4.80 ng/mL
Standard Deviation 4.048
PK Parameter: Clast of BIC, FTC, and TAF
TAF: Week 6 Post-partum
3.13 ng/mL
Standard Deviation 1.849
PK Parameter: Clast of BIC, FTC, and TAF
TAF: Week 12 Post-partum
3.36 ng/mL
Standard Deviation 1.999

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

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

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: Tmax of BIC, FTC, and TAF
BIC: Second Trimester
2.00 h
Interval 1.0 to 12.0
PK Parameter: Tmax of BIC, FTC, and TAF
BIC: Third Trimester
2.00 h
Interval 1.0 to 6.0
PK Parameter: Tmax of BIC, FTC, and TAF
BIC: Week 6 Post-partum
1.50 h
Interval 0.5 to 12.0
PK Parameter: Tmax of BIC, FTC, and TAF
BIC: Week 12 Post-partum
1.50 h
Interval 0.5 to 4.0
PK Parameter: Tmax of BIC, FTC, and TAF
FTC: Second Trimester
1.50 h
Interval 0.5 to 4.0
PK Parameter: Tmax of BIC, FTC, and TAF
FTC: Third Trimester
1.50 h
Interval 0.5 to 4.0
PK Parameter: Tmax of BIC, FTC, and TAF
FTC: Week 6 Post-partum
1.50 h
Interval 0.5 to 4.0
PK Parameter: Tmax of BIC, FTC, and TAF
FTC: Week 12 Post-partum
1.00 h
Interval 0.5 to 3.0
PK Parameter: Tmax of BIC, FTC, and TAF
TAF: Second Trimester
0.75 h
Interval 0.25 to 4.0
PK Parameter: Tmax of BIC, FTC, and TAF
TAF: Third Trimester
1.00 h
Interval 0.25 to 3.0
PK Parameter: Tmax of BIC, FTC, and TAF
TAF: Week 6 Post-partum
0.75 h
Interval 0.25 to 3.0
PK Parameter: Tmax of BIC, FTC, and TAF
TAF: Week 12 Post-partum
0.75 h
Interval 0.25 to 3.0

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

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

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: t1/2 of BIC, FTC, and TAF
FTC: Third Trimester
6.41 h
Interval 4.49 to 7.91
PK Parameter: t1/2 of BIC, FTC, and TAF
BIC: Second Trimester
9.09 h
Interval 4.75 to 16.04
PK Parameter: t1/2 of BIC, FTC, and TAF
BIC: Third Trimester
9.91 h
Interval 7.53 to 16.24
PK Parameter: t1/2 of BIC, FTC, and TAF
BIC: Week 6 Post-partum
18.24 h
Interval 12.18 to 29.59
PK Parameter: t1/2 of BIC, FTC, and TAF
BIC: Week 12 Post-partum
17.27 h
Interval 4.534 to 26.3
PK Parameter: t1/2 of BIC, FTC, and TAF
FTC: Second Trimester
6.43 h
Interval 4.76 to 7.36
PK Parameter: t1/2 of BIC, FTC, and TAF
FTC: Week 6 Post-partum
6.27 h
Interval 4.47 to 7.8
PK Parameter: t1/2 of BIC, FTC, and TAF
FTC: Week 12 Post-partum
5.76 h
Interval 3.83 to 8.19
PK Parameter: t1/2 of BIC, FTC, and TAF
TAF: Second Trimester
0.30 h
Interval 0.22 to 0.66
PK Parameter: t1/2 of BIC, FTC, and TAF
TAF: Third Trimester
0.28 h
Interval 0.19 to 0.62
PK Parameter: t1/2 of BIC, FTC, and TAF
TAF: Week 6 Post-partum
0.40 h
Interval 0.25 to 0.6
PK Parameter: t1/2 of BIC, FTC, and TAF
TAF: Week 12 Post-partum
0.35 h
Interval 0.25 to 0.6

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

CLss/F is defined as the apparent steady-state oral clearance following administration of the drug.

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: CLss/F of BIC, FTC, and TAF
BIC: Second Trimester
911.78 mL/h
Standard Deviation 433.301
PK Parameter: CLss/F of BIC, FTC, and TAF
BIC: Third Trimester
902.47 mL/h
Standard Deviation 287.285
PK Parameter: CLss/F of BIC, FTC, and TAF
BIC: Week 6 Post-partum
399.02 mL/h
Standard Deviation 113.214
PK Parameter: CLss/F of BIC, FTC, and TAF
BIC: Week 12 Post-partum
362.40 mL/h
Standard Deviation 95.856
PK Parameter: CLss/F of BIC, FTC, and TAF
FTC: Second Trimester
20228.02 mL/h
Standard Deviation 3981.186
PK Parameter: CLss/F of BIC, FTC, and TAF
FTC: Third Trimester
19975.85 mL/h
Standard Deviation 4223.365
PK Parameter: CLss/F of BIC, FTC, and TAF
FTC: Week 6 Post-partum
12991.62 mL/h
Standard Deviation 3111.349
PK Parameter: CLss/F of BIC, FTC, and TAF
FTC: Week 12 Post-partum
13645.71 mL/h
Standard Deviation 2830.897
PK Parameter: CLss/F of BIC, FTC, and TAF
TAF: Second Trimester
122677.74 mL/h
Standard Deviation 44270.041
PK Parameter: CLss/F of BIC, FTC, and TAF
TAF: Third Trimester
135061.19 mL/h
Standard Deviation 44876.970
PK Parameter: CLss/F of BIC, FTC, and TAF
TAF: Week 6 Post-partum
76939.32 mL/h
Standard Deviation 29189.555
PK Parameter: CLss/F of BIC, FTC, and TAF
TAF: Week 12 Post-partum
92888.59 mL/h
Standard Deviation 29461.550

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

Vz/F is defined as the apparent volume of distribution of the drug.

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: Vz/F of BIC, FTC, and TAF
BIC: Second Trimester
11896.24 mL
Standard Deviation 4417.149
PK Parameter: Vz/F of BIC, FTC, and TAF
BIC: Third Trimester
13406.77 mL
Standard Deviation 4349.429
PK Parameter: Vz/F of BIC, FTC, and TAF
BIC: Week 6 Post-partum
10348.47 mL
Standard Deviation 3713.380
PK Parameter: Vz/F of BIC, FTC, and TAF
BIC: Week 12 Post-partum
8692.59 mL
Standard Deviation 2398.645
PK Parameter: Vz/F of BIC, FTC, and TAF
FTC: Second Trimester
181767.32 mL
Standard Deviation 36739.344
PK Parameter: Vz/F of BIC, FTC, and TAF
FTC: Third Trimester
184791.79 mL
Standard Deviation 56340.526
PK Parameter: Vz/F of BIC, FTC, and TAF
FTC: Week 6 Post-partum
117384.90 mL
Standard Deviation 35385.941
PK Parameter: Vz/F of BIC, FTC, and TAF
FTC: Week 12 Post-partum
117660.87 mL
Standard Deviation 33240.095
PK Parameter: Vz/F of BIC, FTC, and TAF
TAF: Second Trimester
62333.17 mL
Standard Deviation 37242.307
PK Parameter: Vz/F of BIC, FTC, and TAF
TAF: Third Trimester
53230.98 mL
Standard Deviation 16727.325
PK Parameter: Vz/F of BIC, FTC, and TAF
TAF: Week 6 Post-partum
44440.06 mL
Standard Deviation 13678.515
PK Parameter: Vz/F of BIC, FTC, and TAF
TAF: Week 12 Post-partum
49837.70 mL
Standard Deviation 22019.454

SECONDARY outcome

Timeframe: 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

Population: Participants in the PK analysis set with available data were analyzed.

λz is defined as the terminal elimination rate constant, estimated by linear regression of the terminal elimination phase of the log plasma concentration of drug versus time curve of the drug.

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
PK Parameter: λz of BIC, FTC, and TAF
BIC: Second Trimester
0.077 1/h
Standard Deviation 0.0231
PK Parameter: λz of BIC, FTC, and TAF
BIC: Third Trimester
0.068 1/h
Standard Deviation 0.0125
PK Parameter: λz of BIC, FTC, and TAF
BIC: Week 6 Post-partum
0.040 1/h
Standard Deviation 0.0098
PK Parameter: λz of BIC, FTC, and TAF
BIC: Week 12 Post-partum
0.043 1/h
Standard Deviation 0.0134
PK Parameter: λz of BIC, FTC, and TAF
FTC: Second Trimester
0.113 1/h
Standard Deviation 0.0142
PK Parameter: λz of BIC, FTC, and TAF
FTC: Third Trimester
0.112 1/h
Standard Deviation 0.0173
PK Parameter: λz of BIC, FTC, and TAF
FTC: Week 6 Post-partum
0.114 1/h
Standard Deviation 0.0151
PK Parameter: λz of BIC, FTC, and TAF
FTC: Week 12 Post-partum
0.120 1/h
Standard Deviation 0.0209
PK Parameter: λz of BIC, FTC, and TAF
TAF: Second Trimester
2.227 1/h
Standard Deviation 0.7128
PK Parameter: λz of BIC, FTC, and TAF
TAF: Third Trimester
2.550 1/h
Standard Deviation 0.7519
PK Parameter: λz of BIC, FTC, and TAF
TAF: Week 6 Post-partum
1.777 1/h
Standard Deviation 0.4685
PK Parameter: λz of BIC, FTC, and TAF
TAF: Week 12 Post-partum
1.954 1/h
Standard Deviation 0.4519

SECONDARY outcome

Timeframe: At time of delivery

Population: Full analysis set included all adult participants who enrolled into the study and took at least 1 dose of study drug (B/F/TAF). Participants in the full analysis set with available data were analyzed.

The percentage of participants with HIV-1 RNA \< 50 copies/mL at the time of delivery was analyzed in B/F/TAF group using missing = excluded approach. In this approach, all missing data were excluded in the computation of the percentages (ie, missing data points were excluded from both the numerator and denominator in the computation).

Outcome measures

Outcome measures
Measure
B/F/TAF
n=32 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
Percentage of Participants With HIV-1 RNA < 50 Copies/mL at the Time of Delivery Using the Missing = Excluded Approach in B/F/TAF Group
100.0 percentage of participants
Interval 89.1 to 100.0

SECONDARY outcome

Timeframe: At birth

Population: Neonate full analysis set included neonates who were born to women participating in the study and had been enrolled into the study as well. Participants in the neonate full analysis set with available data were analyzed.

The percentage of participants with HIV-1 RNA \< 50 copies/mL at the time of birth was analyzed in neonates using missing = excluded approach. In this approach, all missing data were excluded in the computation of the percentages (ie, missing data points were excluded from both the numerator and denominator in the computation).

Outcome measures

Outcome measures
Measure
B/F/TAF
n=2 Participants
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
Percentage of Participants With HIV-1 RNA < 50 Copies/mL at Birth Using the Missing = Excluded Approach in Neonates
100.0 percentage of participants
Interval 15.8 to 100.0

Adverse Events

B/F/TAF

Serious events: 6 serious events
Other events: 19 other events
Deaths: 0 deaths

Neonates

Serious events: 5 serious events
Other events: 4 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
B/F/TAF
n=33 participants at risk
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
Neonates
n=29 participants at risk
Neonates born to women participants in the study were followed from birth up to 8 weeks of age after obtaining consent from the parent or legal guardian. None of the neonates participating in the study were treated with the study drug.
Cardiac disorders
Nonreassuring foetal heart rate pattern
3.0%
1/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Congenital, familial and genetic disorders
Accessory auricle
0.00%
0/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
3.4%
1/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Congenital, familial and genetic disorders
Atrial septal defect
0.00%
0/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
3.4%
1/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
General disorders
Pyrexia
3.0%
1/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Infections and infestations
Covid-19
3.0%
1/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Infections and infestations
Sepsis neonatal
0.00%
0/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
3.4%
1/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
False labour
9.1%
3/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
Jaundice neonatal
0.00%
0/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
3.4%
1/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
Pre-eclampsia
3.0%
1/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
Preterm premature rupture of membranes
3.0%
1/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Respiratory, thoracic and mediastinal disorders
Neonatal asphyxia
0.00%
0/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
3.4%
1/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Respiratory, thoracic and mediastinal disorders
Transient tachypnoea of the newborn
0.00%
0/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
3.4%
1/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.

Other adverse events

Other adverse events
Measure
B/F/TAF
n=33 participants at risk
Pregnant women participants received FDC tablet of B/F/TAF 50/200/25 mg, orally, once daily for up to 38 weeks (from the second or third trimesters of pregnancy, depending on enrollment, through 12 weeks post-partum).
Neonates
n=29 participants at risk
Neonates born to women participants in the study were followed from birth up to 8 weeks of age after obtaining consent from the parent or legal guardian. None of the neonates participating in the study were treated with the study drug.
Blood and lymphatic system disorders
Anaemia
9.1%
3/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Cardiac disorders
Foetal heart rate deceleration abnormality
6.1%
2/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Gastrointestinal disorders
Abdominal pain
6.1%
2/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Gastrointestinal disorders
Haemorrhoids
6.1%
2/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Musculoskeletal and connective tissue disorders
Back pain
12.1%
4/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Nervous system disorders
Dizziness
6.1%
2/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Nervous system disorders
Headache
6.1%
2/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
Gestational diabetes
12.1%
4/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
Jaundice neonatal
0.00%
0/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
6.9%
2/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
Oligohydramnios
6.1%
2/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
Postpartum haemorrhage
6.1%
2/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Pregnancy, puerperium and perinatal conditions
Pre-eclampsia
6.1%
2/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
0.00%
0/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
Respiratory, thoracic and mediastinal disorders
Respiratory distress
0.00%
0/33 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.
10.3%
3/29 • All-Cause Mortality: From birth up to 8 weeks of age for neonates; From enrollment up to 38 weeks + 30 days for B/F/TAF group. Adverse Events: First dose date up to 38 weeks + 30 days for B/F/TAF group
B/F/TAF:Safety analysis set- all adult participants who took at least 1 dose of study drug. Neonates:Safety analysis set- neonates born to women participating \& had been enrolled into study. None of neonates participating in study were treated. Adverse events (AE) reported for that group are not treatment emergent (TE). TEAE:any AE with onset on/after start of study drug \& no later than 30 days after permanent study drug discontinuation, or any AE leading to premature study drug discontinuation.

Additional Information

Gilead Clinical Study Information Center

Gilead Sciences

Phone: 1-833-445-3230 (GILEAD-0)

Results disclosure agreements

  • Principal investigator is a sponsor employee After conclusion of the study and without prior written approval from Gilead, investigators in this study may communicate, orally present, or publish in scientific journals or other media only after the following conditions have been met: * The results of the study in their entirety have been publicly disclosed by or with the consent of Gilead in an abstract, manuscript, or presentation form; or * The study has been completed at all study sites for at least 2 years
  • Publication restrictions are in place

Restriction type: OTHER