Trial Outcomes & Findings for Pharmacokinetics of Bictegravir in Adults With Normal and Impaired Renal Function (NCT NCT02400307)

NCT ID: NCT02400307

Last Updated: 2019-10-11

Results Overview

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

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

19 participants

Primary outcome timeframe

Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Results posted on

2019-10-11

Participant Flow

Participants were enrolled at study sites in the United States and New Zealand. The first participant was screened on 17 April 2015. The last study visit occurred on 13 July 2015.

49 participants were screened. No participants were enrolled in the moderate or mild renal impairment adaptive cohorts as a review showed that PK data collected were sufficient to detect any differences between the 2 renal function groups.

Participant milestones

Participant milestones
Measure
Severe Renal Impairment
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Overall Study
STARTED
11
8
Overall Study
COMPLETED
10
8
Overall Study
NOT COMPLETED
1
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Severe Renal Impairment
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Overall Study
Enrolled and Never Dosed
1
0

Baseline Characteristics

Pharmacokinetics of Bictegravir in Adults With Normal and Impaired Renal Function

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Total
n=18 Participants
Total of all reporting groups
Age, Continuous
62 years
STANDARD_DEVIATION 15.6 • n=5 Participants
56 years
STANDARD_DEVIATION 14.7 • n=7 Participants
59 years
STANDARD_DEVIATION 15.1 • n=5 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=5 Participants
Sex: Female, Male
Male
7 Participants
n=5 Participants
6 Participants
n=7 Participants
13 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants
n=5 Participants
6 Participants
n=7 Participants
13 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 (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=5 Participants
1 Participants
n=7 Participants
4 Participants
n=5 Participants
Race (NIH/OMB)
White
7 Participants
n=5 Participants
7 Participants
n=7 Participants
14 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Population: The PK Analysis Set included participants who took the single dose of bictegravir and had at least 1 nonmissing postdose concentration value for bictegravir.

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

Outcome measures

Outcome measures
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Pharmacokinetic (PK) Parameter: AUCinf of Bictegravir (Total)
138169.7 h*ng/mL
Standard Deviation 61291.27
170105.6 h*ng/mL
Standard Deviation 42213.18

PRIMARY outcome

Timeframe: Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Population: Participants in the PK Analysis Set were analyzed.

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

Outcome measures

Outcome measures
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
PK Parameter: AUCinf of Bictegravir (Free)
830.6 h*ng/mL
Standard Deviation 266.59
824.5 h*ng/mL
Standard Deviation 203.49

PRIMARY outcome

Timeframe: Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Population: Participants in the PK Analysis Set were analyzed.

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

Outcome measures

Outcome measures
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
PK Parameter: AUClast of Bictegravir (Total)
136956.4 h*ng/mL
Standard Deviation 60557.34
168876.8 h*ng/mL
Standard Deviation 41706.37

PRIMARY outcome

Timeframe: Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Population: Participants in the PK Analysis Set were analyzed.

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

Outcome measures

Outcome measures
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
PK Parameter: AUClast of Bictegravir (Free)
822.5 h*ng/mL
Standard Deviation 263.22
818.6 h*ng/mL
Standard Deviation 201.18

PRIMARY outcome

Timeframe: Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Population: Participants in the PK Analysis Set were analyzed.

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

Outcome measures

Outcome measures
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
PK Parameter: Cmax of Bictegravir (Total)
5977.0 ng/mL
Standard Deviation 2079.57
7227.5 ng/mL
Standard Deviation 2135.56

PRIMARY outcome

Timeframe: Predose and 0.5, 1, 2, 3, 4, 6, 8, 12, 18, 24, 36, 48, 72, 96, 120 and 144 hours postdose on Day 1

Population: Participants in the PK Analysis Set were analyzed.

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

Outcome measures

Outcome measures
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
PK Parameter: Cmax of Bictegravir (Free)
37.7 ng/mL
Standard Deviation 8.15
35.0 ng/mL
Standard Deviation 9.94

SECONDARY outcome

Timeframe: First dose date to Day 31

Population: The Safety Analysis Set included participants who received the single dose of study drug.

Treatment-emergent adverse events (TEAEs) are defined as any adverse events (AEs) with an onset date on or after the study drug start date and no later than 30 days after permanent discontinuation of study drug or any AEs leading to premature discontinuation of study drug.

Outcome measures

Outcome measures
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Percentage of Participants Who Experienced Treatment-Emergent Adverse Events
20.0 percentage of participants
25.0 percentage of participants

SECONDARY outcome

Timeframe: First dose date to Day 31

Population: Participants in the Safety Analysis Set were analyzed.

A treatment-emergent graded laboratory abnormality was defined as an increase of at least 1 abnormality grade from the predose assessment and occurring after the predose visit and on or before the date of the administration of study drug plus 30 days. The most severe graded abnormality from all tests was counted for each participant. Toxicity grade was defined as follows: Grade 1 = Mild, Grade 2 = Moderate, Grade 3 = Severe, and Grade 4 = Life-threatening.

Outcome measures

Outcome measures
Measure
Severe Renal Impairment
n=10 Participants
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 Participants
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Percentage of Participants Who Experienced Treatment-Emergent Laboratory Abnormalities
Grade 1
20.0 percentage of participants
25.0 percentage of participants
Percentage of Participants Who Experienced Treatment-Emergent Laboratory Abnormalities
Grade 2
40.0 percentage of participants
25.0 percentage of participants
Percentage of Participants Who Experienced Treatment-Emergent Laboratory Abnormalities
Grade 3
40.0 percentage of participants
0 percentage of participants
Percentage of Participants Who Experienced Treatment-Emergent Laboratory Abnormalities
Grade 4
0 percentage of participants
0 percentage of participants

Adverse Events

Severe Renal Impairment

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Normal Renal Function

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Severe Renal Impairment
n=10 participants at risk
Participants with severe renal impairment (CrCl = 15 - 29 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Normal Renal Function
n=8 participants at risk
Matched healthy control participants with normal renal function (CrCl ≥ 90 mL/min) received a single dose of bictegravir 75 mg tablet orally on Day 1 under fed conditions
Gastrointestinal disorders
Constipation
0.00%
0/10 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
12.5%
1/8 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
Gastrointestinal disorders
Nausea
10.0%
1/10 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
0.00%
0/8 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
Musculoskeletal and connective tissue disorders
Back pain
10.0%
1/10 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
0.00%
0/8 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
Nervous system disorders
Headache
0.00%
0/10 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
12.5%
1/8 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
Skin and subcutaneous tissue disorders
Ecchymosis
10.0%
1/10 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.
0.00%
0/8 • First dose date to Day 31
The Safety Analysis Set included participants who received the single dose of bictegravir.

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