Trial Outcomes & Findings for Pharmacokinetics, Safety, and Efficacy of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Disoproxil Fumarate Single Tablet Regimen (STR) in Adolescents (NCT NCT01721109)

NCT ID: NCT01721109

Last Updated: 2018-08-17

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

PHASE2/PHASE3

Target enrollment

50 participants

Primary outcome timeframe

Predose, 2, 4, 4.5, 5, 8, and 12 hours postdose on Day 10

Results posted on

2018-08-17

Participant Flow

Participants were enrolled at study sites in the United States, South Africa, and Thailand. The first participant was screened on 06 December 2012. The last study visit occurred on 29 January 2018.

56 participants were screened.

Participant milestones

Participant milestones
Measure
EVG/COBI/FTC/TDF
Elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (EVG/COBI/FTC/TDF) (150/150/200/300 mg) single-tablet regimen (STR) administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase.
Overall Study
STARTED
50
Overall Study
COMPLETED
43
Overall Study
NOT COMPLETED
7

Reasons for withdrawal

Reasons for withdrawal
Measure
EVG/COBI/FTC/TDF
Elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (EVG/COBI/FTC/TDF) (150/150/200/300 mg) single-tablet regimen (STR) administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase.
Overall Study
Lack of Efficacy
1
Overall Study
Non- Compliance with Study Drug
3
Overall Study
Withdrew Consent
1
Overall Study
Lost to Follow-up
2

Baseline Characteristics

Pharmacokinetics, Safety, and Efficacy of Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Disoproxil Fumarate Single Tablet Regimen (STR) in Adolescents

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
EVG/COBI/FTC/TDF
n=50 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Age, Continuous
15 years
STANDARD_DEVIATION 1.5 • n=5 Participants
Sex: Female, Male
Female
15 Participants
n=5 Participants
Sex: Female, Male
Male
35 Participants
n=5 Participants
Race/Ethnicity, Customized
Asian
14 Participants
n=5 Participants
Race/Ethnicity, Customized
Black
34 Participants
n=5 Participants
Race/Ethnicity, Customized
White
1 Participants
n=5 Participants
Race/Ethnicity, Customized
Other
1 Participants
n=5 Participants
Race/Ethnicity, Customized
Hispanic or Latino
2 Participants
n=5 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
47 Participants
n=5 Participants
Race/Ethnicity, Customized
Not Permitted
1 Participants
n=5 Participants
Region of Enrollment
United States
14 Participants
n=5 Participants
Region of Enrollment
South Africa
22 Participants
n=5 Participants
Region of Enrollment
Thailand
14 Participants
n=5 Participants
HIV-1 RNA
4.60 log10 copies/mL
STANDARD_DEVIATION 0.551 • n=5 Participants
HIV-1 RNA Category
≤ 100,000 copies/mL
40 Participants
n=5 Participants
HIV-1 RNA Category
> 100,000 copies/mL
10 Participants
n=5 Participants
CD4 Cell Count
399 cells/µL
STANDARD_DEVIATION 127.6 • n=5 Participants
CD4 Cell Count Category
≤ 199 cells/µL
2 Participants
n=5 Participants
CD4 Cell Count Category
200 ≥ and ≤ 349 cells/µL
16 Participants
n=5 Participants
CD4 Cell Count Category
350 ≥ and ≤ 499 cells/µL
22 Participants
n=5 Participants
CD4 Cell Count Category
≥ 500 cells/µL
10 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Predose, 2, 4, 4.5, 5, 8, and 12 hours postdose on Day 10

Population: PK Substudy Analysis Set: all enrolled and treated participants from Part A who had evaluable steady-state pharmacokinetic profiles of the respective analyte of interest at the Day 10 intensive PK visit.

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
EVG/COBI/FTC/TDF
n=14 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
For Part A, Pharmacokinetic (PK) Parameter: AUCtau of EVG
31620.9 ng•h/mL
Standard Deviation 13978.07

PRIMARY outcome

Timeframe: Up to Week 48 plus 30 days

Population: Safety Analysis Set: all participants who received at least 1 dose of study drug.

Outcome measures

Outcome measures
Measure
EVG/COBI/FTC/TDF
n=50 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Incidence of Treatment-Emergent Serious Adverse Events (SAEs) and All Treatment-Emergent Adverse Events (AEs)
SAEs
4 Participants
Incidence of Treatment-Emergent Serious Adverse Events (SAEs) and All Treatment-Emergent Adverse Events (AEs)
AEs
45 Participants

SECONDARY outcome

Timeframe: Predose, 2, 4, 4.5, 5, 8, and 12 hours postdose on Day 10

Population: PK Substudy Analysis Set: all enrolled and treated participants from Part A who had evaluable steady-state pharmacokinetic profiles of the respective analyte of interest at the Day 10 intensive PK visit.

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

Outcome measures

Outcome measures
Measure
EVG/COBI/FTC/TDF
n=14 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
For Part A, PK Parameter: Ctau of EVG, FTC, Tenofovir (TFV), and COBI
EVG
579.3 ng/mL
Standard Deviation 455.20
For Part A, PK Parameter: Ctau of EVG, FTC, Tenofovir (TFV), and COBI
FTC
102.6 ng/mL
Standard Deviation 30.85
For Part A, PK Parameter: Ctau of EVG, FTC, Tenofovir (TFV), and COBI
TFV
86.6 ng/mL
Standard Deviation 23.58
For Part A, PK Parameter: Ctau of EVG, FTC, Tenofovir (TFV), and COBI
COBI
39.7 ng/mL
Standard Deviation 68.52

SECONDARY outcome

Timeframe: Predose, 2, 4, 4.5, 5, 8, and 12 hours postdose on Day 10

Population: PK Substudy Analysis Set: all enrolled and treated participants from Part A who had evaluable steady-state pharmacokinetic profiles of the respective analyte of interest at the Day 10 intensive PK visit.

Cmax is defined as the maximum concentration of drug.

Outcome measures

Outcome measures
Measure
EVG/COBI/FTC/TDF
n=14 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
For Part A, PK Parameter: Cmax of EVG, FTC, TFV, and COBI
EVG
2624.3 ng/mL
Standard Deviation 1239.64
For Part A, PK Parameter: Cmax of EVG, FTC, TFV, and COBI
FTC
2217.4 ng/mL
Standard Deviation 664.64
For Part A, PK Parameter: Cmax of EVG, FTC, TFV, and COBI
TFV
438.5 ng/mL
Standard Deviation 170.69
For Part A, PK Parameter: Cmax of EVG, FTC, TFV, and COBI
COBI
1500.4 ng/mL
Standard Deviation 975.29

SECONDARY outcome

Timeframe: Predose, 2, 4, 4.5, 5, 8, and 12 hours postdose on Day 10

Population: PK Substudy Analysis Set: all enrolled and treated participants from Part A who had evaluable steady-state pharmacokinetic profiles of the respective analyte of interest at the Day 10 intensive PK visit.

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
EVG/COBI/FTC/TDF
n=14 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
For Part A, PK Parameter: AUCtau of FTC, TFV, and COBI
COBI
11884.8 ng•h/mL
Standard Deviation 11220.94
For Part A, PK Parameter: AUCtau of FTC, TFV, and COBI
FTC
15136.5 ng•h/mL
Standard Deviation 4702.06
For Part A, PK Parameter: AUCtau of FTC, TFV, and COBI
TFV
4450.7 ng•h/mL
Standard Deviation 1312.27

SECONDARY outcome

Timeframe: Weeks 24 and 48

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

Outcome measures

Outcome measures
Measure
EVG/COBI/FTC/TDF
n=50 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Percentage of Participants With HIV-1 RNA < 50 Copies/mL at Weeks 24 and 48 as Defined by the FDA Snapshot Analysis
Week 24
88.0 percentage of participants
Percentage of Participants With HIV-1 RNA < 50 Copies/mL at Weeks 24 and 48 as Defined by the FDA Snapshot Analysis
Week 48
88.0 percentage of participants

SECONDARY outcome

Timeframe: Weeks 24 and 48

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

Outcome measures

Outcome measures
Measure
EVG/COBI/FTC/TDF
n=50 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Percentage of Participants With HIV-1 RNA < 400 Copies/mL at Weeks 24 and 48 as Defined by the FDA Snapshot Analysis
Week 24
94.0 percentage of participants
Percentage of Participants With HIV-1 RNA < 400 Copies/mL at Weeks 24 and 48 as Defined by the FDA Snapshot Analysis
Week 48
92.0 percentage of participants

SECONDARY outcome

Timeframe: Baseline; Weeks 24 and 48

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

Outcome measures

Outcome measures
Measure
EVG/COBI/FTC/TDF
n=50 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Change From Baseline in Plasma log10 HIV-1 RNA at Weeks 24 and 48
Change at Week 24
-3.08 log10 copies/mL
Standard Deviation 0.922
Change From Baseline in Plasma log10 HIV-1 RNA at Weeks 24 and 48
Change at Week 48
-3.16 log10 copies/mL
Standard Deviation 0.705

SECONDARY outcome

Timeframe: Baseline; Weeks 24 and 48

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

Outcome measures

Outcome measures
Measure
EVG/COBI/FTC/TDF
n=49 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Change From Baseline in CD4+ Cell Count at Weeks 24 and 48
Change at Week 24
178 cells/µL
Standard Deviation 165.4
Change From Baseline in CD4+ Cell Count at Weeks 24 and 48
Change at Week 48
229 cells/µL
Standard Deviation 245.3

SECONDARY outcome

Timeframe: Baseline; Weeks 24 and 48

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

Outcome measures

Outcome measures
Measure
EVG/COBI/FTC/TDF
n=49 Participants
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Change From Baseline in CD4 Percentage at Weeks 24 and 48
Change at Week 24
7.4 percentage
Standard Deviation 4.70
Change From Baseline in CD4 Percentage at Weeks 24 and 48
Change at Week 48
8.1 percentage
Standard Deviation 5.34

Adverse Events

EVG/COBI/FTC/TDF

Serious events: 5 serious events
Other events: 46 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
EVG/COBI/FTC/TDF
n=50 participants at risk
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Blood and lymphatic system disorders
Anaemia
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Gastrointestinal disorders
Food poisoning
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Gastrointestinal disorders
Haemorrhoids
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Immune system disorders
Immune reconstitution inflammatory syndrome
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Disseminated tuberculosis
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Gastroenteritis shigella
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Oral candidiasis
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Pneumonia
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Metabolism and nutrition disorders
Dehydration
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Psychiatric disorders
Suicidal behaviour
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Renal and urinary disorders
Acute kidney injury
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Respiratory, thoracic and mediastinal disorders
Asthma
2.0%
1/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.

Other adverse events

Other adverse events
Measure
EVG/COBI/FTC/TDF
n=50 participants at risk
EVG/COBI/FTC/TDF (150/150/200/300 mg) STR administered orally once daily with food for 48 weeks, followed by EVG/COBI/FTC/TDF (150/150/200/300 mg) during the optional extension phase
Gastrointestinal disorders
Diarrhoea
16.0%
8/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Gastrointestinal disorders
Haemorrhoids
8.0%
4/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Gastrointestinal disorders
Nausea
16.0%
8/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Gastrointestinal disorders
Toothache
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Gastrointestinal disorders
Vomiting
20.0%
10/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
General disorders
Pyrexia
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Bronchitis
8.0%
4/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Influenza
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Nasopharyngitis
8.0%
4/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Oral herpes
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Oropharyngeal gonococcal infection
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Pharyngitis
12.0%
6/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Proctitis gonococcal
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Respiratory tract infection viral
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Secondary syphilis
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Tonsillitis
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Upper respiratory tract infection
36.0%
18/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Infections and infestations
Urinary tract infection
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Injury, poisoning and procedural complications
Skin abrasion
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Investigations
Weight decreased
8.0%
4/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Metabolism and nutrition disorders
Decreased appetite
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Metabolism and nutrition disorders
Vitamin D deficiency
18.0%
9/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Musculoskeletal and connective tissue disorders
Myalgia
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Nervous system disorders
Dizziness
8.0%
4/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Nervous system disorders
Headache
24.0%
12/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Skin and subcutaneous tissue disorders
Acne
16.0%
8/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Skin and subcutaneous tissue disorders
Dermatitis
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Skin and subcutaneous tissue disorders
Dermatitis contact
6.0%
3/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.
Skin and subcutaneous tissue disorders
Rash
8.0%
4/50 • Baseline up to the last dose date plus 30 days (maximum exposure: 250.7 weeks)
Safety Analysis Set: all participants who received at least 1 dose of study drug.

Additional Information

Gilead Clinical Study Information Center

Gilead Sciences

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