Trial Outcomes & Findings for An Interaction Study to Assess Drug Levels in Healthy Adult Subjects (NCT NCT00614991)

NCT ID: NCT00614991

Last Updated: 2016-01-29

Results Overview

APV minimum concentration (Cmin), maximum concentration (Cmax), area under the plasma concentration-time curve (AUC), and oral clearance (CL/F) as determined from APV concentrations observed in blood samples obtained at baseline, and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours during the BID regimens (FPV 1400mg BID, FPV 700mg/RTV 100 mg BID), and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 24 hours during the QD regimen (FPV 1400mg/RTV 100mg QD). As Groups A and B received the same regimens (albeit in different order), PK data for these two groups were collated, then assessed. For the same reason, PK data from Groups C and D regimens were collated before assessment, as were the PK data from Groups E and F

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

44 participants

Primary outcome timeframe

Day 14 of the FPV 1400mg BID, FPV 1400mg/RAL 400mg BID, FPV 700mg/RTV 100mg BID, FPV 700mg/RTV 100mg/RAL 400mg BID, FPV 1400mg/RTV 100mg QD, and FPV 1400mg/RTV 100mg QD plus RAL 400mg BID regimens

Results posted on

2016-01-29

Participant Flow

Participant milestones

Participant milestones
Measure
Group A
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID
Group B
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID
Group D
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg once daily (QD) + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Overall Study
STARTED
8
9
7
7
7
6
Overall Study
COMPLETED
5
6
7
7
6
6
Overall Study
NOT COMPLETED
3
3
0
0
1
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Group A
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID
Group B
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID
Group D
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg once daily (QD) + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Overall Study
Adverse Event
3
3
0
0
1
0

Baseline Characteristics

An Interaction Study to Assess Drug Levels in Healthy Adult Subjects

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group A
n=5 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID
Group B
n=6 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C
n=7 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID
Group D
n=7 Participants
Period 1-Raltegravir 400mg BID Period 2- Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E
n=6 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
n=6 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Total
n=37 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=10 Participants
0 Participants
n=115 Participants
Age, Categorical
Between 18 and 65 years
5 Participants
n=5 Participants
6 Participants
n=7 Participants
6 Participants
n=5 Participants
7 Participants
n=4 Participants
6 Participants
n=21 Participants
6 Participants
n=10 Participants
36 Participants
n=115 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
0 Participants
n=10 Participants
1 Participants
n=115 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
4 Participants
n=7 Participants
5 Participants
n=5 Participants
3 Participants
n=4 Participants
4 Participants
n=21 Participants
2 Participants
n=10 Participants
20 Participants
n=115 Participants
Sex: Female, Male
Male
3 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
4 Participants
n=4 Participants
2 Participants
n=21 Participants
4 Participants
n=10 Participants
17 Participants
n=115 Participants
Region of Enrollment
United States
5 participants
n=5 Participants
6 participants
n=7 Participants
7 participants
n=5 Participants
7 participants
n=4 Participants
6 participants
n=21 Participants
6 participants
n=10 Participants
37 participants
n=115 Participants

PRIMARY outcome

Timeframe: Day 14 of the FPV 1400mg BID, FPV 1400mg/RAL 400mg BID, FPV 700mg/RTV 100mg BID, FPV 700mg/RTV 100mg/RAL 400mg BID, FPV 1400mg/RTV 100mg QD, and FPV 1400mg/RTV 100mg QD plus RAL 400mg BID regimens

APV minimum concentration (Cmin), maximum concentration (Cmax), area under the plasma concentration-time curve (AUC), and oral clearance (CL/F) as determined from APV concentrations observed in blood samples obtained at baseline, and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours during the BID regimens (FPV 1400mg BID, FPV 700mg/RTV 100 mg BID), and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 24 hours during the QD regimen (FPV 1400mg/RTV 100mg QD). As Groups A and B received the same regimens (albeit in different order), PK data for these two groups were collated, then assessed. For the same reason, PK data from Groups C and D regimens were collated before assessment, as were the PK data from Groups E and F

Outcome measures

Outcome measures
Measure
Group A & B
n=11 Participants
Group A Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Group B Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C & D
n=14 Participants
Group C Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Group D Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E & F
n=12 Participants
Group E Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Group F Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Group D
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Raltegravir 100mg BID
Group E
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Cmin/Cmax: Steady-state Plasma Amprenavir (APV) Pharmacokinetics (PK) Following Admin of Fosamprenavir (FPV) 1400mg BID, FPV 700mg/Ritonavir (RTV) 100 mg BID, or FPV 1400mg/RTV 100mg QD With and Without Concurrent Raltegravir (RTG) 400mg BID.
Cmin (ng/mL)
0.67 ng/mL
Interval 0.49 to 0.93
0.67 ng/mL
Interval 0.5 to 0.9
0.83 ng/mL
Interval 0.57 to 1.23
Cmin/Cmax: Steady-state Plasma Amprenavir (APV) Pharmacokinetics (PK) Following Admin of Fosamprenavir (FPV) 1400mg BID, FPV 700mg/Ritonavir (RTV) 100 mg BID, or FPV 1400mg/RTV 100mg QD With and Without Concurrent Raltegravir (RTG) 400mg BID.
Cmax (ng/mL)
0.83 ng/mL
Interval 0.71 to 0.98
0.75 ng/mL
Interval 0.59 to 0.96
1.27 ng/mL
Interval 1.02 to 1.58

PRIMARY outcome

Timeframe: Day 14 of the FPV 1400mg BID, FPV 1400mg/RAL 400mg BID, FPV 700mg/RTV 100mg BID, FPV 700mg/RTV 100mg/RAL 400mg BID, FPV 1400mg/RTV 100mg QD, and FPV 1400mg/RTV 100mg QD plus RAL 400mg BID regimens

APV minimum concentration (Cmin), maximum concentration (Cmax), area under the plasma concentration-time curve (AUC), and oral clearance (CL/F) as determined from APV concentrations observed in blood samples obtained at baseline, and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours during the BID regimens (FPV 1400mg BID, FPV 700mg/RTV 100 mg BID), and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 24 hours during the QD regimen (FPV 1400mg/RTV 100mg QD). As Groups A and B received the same regimens (albeit in different order), PK data for these two groups were collated, then assessed. For the same reason, PK data from Groups C and D regimens were collated before assessment, as were the PK data from Groups E and F

Outcome measures

Outcome measures
Measure
Group A & B
n=11 Participants
Group A Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Group B Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C & D
n=14 Participants
Group C Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Group D Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E & F
n=12 Participants
Group E Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Group F Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Group D
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Raltegravir 100mg BID
Group E
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
AUC: Steady-state Plasma Amprenavir (APV) Pharmacokinetics (PK) Following Admin of Fosamprenavir (FPV) 1400mg BID, FPV 700mg/Ritonavir (RTV) 100 mg BID, or FPV 1400mg/RTV 100mg QD With and Without Concurrent Raltegravir (RTG) 400mg BID.
0.81 ng•h/mL
Interval 0.71 to 0.93
0.75 ng•h/mL
Interval 0.58 to 0.97
1.13 ng•h/mL
Interval 0.95 to 1.35

PRIMARY outcome

Timeframe: Day 14 of the FPV 1400mg BID, FPV 1400mg/RAL 400mg BID, FPV 700mg/RTV 100mg BID, FPV 700mg/RTV 100mg/RAL 400mg BID, FPV 1400mg/RTV 100mg QD, and FPV 1400mg/RTV 100mg QD plus RAL 400mg BID regimens

APV minimum concentration (Cmin), maximum concentration (Cmax), area under the plasma concentration-time curve (AUC), and oral clearance (CL/F) as determined from APV concentrations observed in blood samples obtained at baseline, and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours during the BID regimens (FPV 1400mg BID, FPV 700mg/RTV 100 mg BID), and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 24 hours during the QD regimen (FPV 1400mg/RTV 100mg QD). As Groups A and B received the same regimens (albeit in different order), PK data for these two groups were collated, then assessed. For the same reason, PK data from Groups C and D regimens were collated before assessment, as were the PK data from Groups E and F

Outcome measures

Outcome measures
Measure
Group A & B
n=11 Participants
Group A Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Group B Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C & D
n=14 Participants
Group C Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Group D Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E & F
n=12 Participants
Group E Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Group F Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Group D
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Raltegravir 100mg BID
Group E
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
CL/F: Steady-state Plasma Amprenavir (APV) Pharmacokinetics (PK) Following Administration of Fosamprenavir (FPV) 1400mg BID, FPV 700mg/Ritonavir (RTV) 100 mg BID, or FPV 1400mg/RTV 100mg QD With and Without Concurrent Raltegravir (RTG) 400mg BID.
1.26 L/H
Interval 1.08 to 1.46
1.43 L/H
Interval 1.08 to 1.89
1.05 L/H
Interval 0.8 to 1.38

PRIMARY outcome

Timeframe: Day 7 of the RAL 400mg BID regimen and Day 14 of the RAL 400mg/FPV 1400mg BID, RAL 400mg/FPV 700mg/RTV 100mg BID, and RAL 400mg BID Plus FPV 1400mg/RTV 100mg QD regimens

RAL minimum concentration (Cmin), maximum concentration (Cmax), area under the plasma concentration-time curve (AUC), and oral clearance (CL/F) as determined from RAL concentrations observed in blood samples obtained at baseline, and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours during the period when RAL 400mg BID was administered with the FPV-Containing BID regimens (FPV 1400mg BID, FPV 700mg/RTV 100 mg BID), and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 24 hours during the period when RAL 400mg BID was administered with the FPV QD regimen (FPV 1400mg/RTV 100mg QD). As Groups A and B received the same regimens (albeit in different order), PK data for these two groups were collated, then assessed. For the same reason, PK data from Groups C and D regimens were collated before assessment, as were the PK data from Groups E and F.

Outcome measures

Outcome measures
Measure
Group A & B
n=11 Participants
Group A Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Group B Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C & D
n=14 Participants
Group C Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Group D Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E & F
n=12 Participants
Group E Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Group F Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Group D
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Raltegravir 100mg BID
Group E
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Cmin/Cmax: Steady-state Plasma RTG PK Following Admin of FPV 1400mg BID, FPV 700mg/RTV 100 mg BID, or FPV 1400mg/RTV 100mg QD With and Without Concurrent RTG 400mg BID.
Cmin (ng/mL)
0.32 ng/mL
Interval 0.15 to 0.66
0.46 ng/mL
Interval 0.26 to 0.82
0.59 ng/mL
Interval 0.27 to 1.3
Cmin/Cmax: Steady-state Plasma RTG PK Following Admin of FPV 1400mg BID, FPV 700mg/RTV 100 mg BID, or FPV 1400mg/RTV 100mg QD With and Without Concurrent RTG 400mg BID.
Cmax (ng/mL)
0.95 ng/mL
Interval 0.64 to 1.43
0.44 ng/mL
Interval 0.3 to 0.66
0.85 ng/mL
Interval 0.58 to 1.24

PRIMARY outcome

Timeframe: Day 7 of the RAL 400mg BID regimen and Day 14 of the RAL 400mg/FPV 1400mg BID, RAL 400mg/FPV 700mg/RTV 100mg BID, and RAL 400mg BID Plus FPV 1400mg/RTV 100mg QD regimens

APV minimum concentration (Cmin), maximum concentration (Cmax), area under the plasma concentration-time curve (AUC), and oral clearance (CL/F) as determined from APV concentrations observed in blood samples obtained at baseline, and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours during the BID regimens (FPV 1400mg BID, FPV 700mg/RTV 100 mg BID), and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 24 hours during the QD regimen (FPV 1400mg/RTV 100mg QD). As Groups A and B received the same regimens (albeit in different order), PK data for these two groups were collated, then assessed. For the same reason, PK data from Groups C and D regimens were collated before assessment, as were the PK data from Groups E and F

Outcome measures

Outcome measures
Measure
Group A & B
n=11 Participants
Group A Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Group B Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C & D
n=14 Participants
Group C Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Group D Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E & F
n=12 Participants
Group E Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Group F Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Group D
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Raltegravir 100mg BID
Group E
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
AUC: Steady-state Plasma Amprenavir (APV) Pharmacokinetics (PK) Following Administration of Fosamprenavir (FPV) 1400mg BID, FPV 700mg/Ritonavir (RTV) 100 mg BID, or FPV 1400mg/RTV 100mg QD With and Without Concurrent Raltegravir (RTG) 400mg BID.
0.71 ng•h/mL
Interval 0.54 to 0.94
0.46 ng•h/mL
Interval 0.34 to 0.63
0.70 ng•h/mL
Interval 0.52 to 0.94

PRIMARY outcome

Timeframe: Day 7 of the RAL 400mg BID regimen and Day 14 of the RAL 400mg/FPV 1400mg BID, RAL 400mg/FPV 700mg/RTV 100mg BID, and RAL 400mg BID Plus FPV 1400mg/RTV 100mg QD regimens

APV minimum concentration (Cmin), maximum concentration (Cmax), area under the plasma concentration-time curve (AUC), and oral clearance (CL/F) as determined from APV concentrations observed in blood samples obtained at baseline, and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 12 hours during the BID regimens (FPV 1400mg BID, FPV 700mg/RTV 100 mg BID), and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 24 hours during the QD regimen (FPV 1400mg/RTV 100mg QD). As Groups A and B received the same regimens (albeit in different order), PK data for these two groups were collated, then assessed. For the same reason, PK data from Groups C and D regimens were collated before assessment, as were the PK data from Groups E and F

Outcome measures

Outcome measures
Measure
Group A & B
n=11 Participants
Group A Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Group B Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C & D
n=14 Participants
Group C Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Group D Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E & F
n=12 Participants
Group E Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Group F Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Group D
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Raltegravir 100mg BID
Group E
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
CL/F: Steady-state Plasma Amprenavir (APV) Pharmacokinetics (PK) Following Administration of Fosamprenavir (FPV) 1400mg BID, FPV 700mg/Ritonavir (RTV) 100 mg BID, or FPV 1400mg/RTV 100mg QD With and Without Concurrent Raltegravir (RTG) 400mg BID.
1.02 L/h
Interval 0.88 to 1.19
2.30 L/h
Interval 1.52 to 3.47
1.46 L/h
Interval 0.96 to 2.21

SECONDARY outcome

Timeframe: Day 0 through Day 49

Safety/tolerability data included all adverse events (AEs) reported within the time frame of each regimen evaluated. The intent was to compare adverse events for each sequence and not for each regimen. The regimens for which AE information was culled were: * RAL 400mg BID alone * FPV 1400mg BID alone * FPV 700mg/RTV 100 mg BID alone * FPV 1400mg/RTV 100mg QD alone * FPV 1400mg BID combined with RAL 400mg BID * FPV 700mg/RTV 100 mg BID combined with RAL 400mg BID * FPV 1400mg/RTV 100mg QD combined with RAL 400mg BID The severity of reported AEs was graded according to DAIDS criteria, Version 1.0 (National Institute of Allergy and Infectious Diseases (NIAID). Table for Grading the Severity of Adult and Pediatric Adverse Events, Version 1.0. Division of Acquired Immunodeficiency Syndrome (DAIDS), Washington D.C.; 2004.

Outcome measures

Outcome measures
Measure
Group A & B
n=5 Participants
Group A Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Group B Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C & D
n=6 Participants
Group C Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Group D Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID
Group E & F
n=7 Participants
Group E Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Group F Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Group D
n=7 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Raltegravir 100mg BID
Group E
n=6 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
n=6 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Number of Participants Who Experienced Adverse Events
0 participants
4 participants
6 participants
5 participants
5 participants
4 participants

Adverse Events

Group A

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

Group B

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

Group C

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

Group D

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

Group E

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

Group F

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Group A
n=5 participants at risk
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID Period 3-Fosamprenavir 1400mg BID + Raltegravir 400mg BID
Group B
n=6 participants at risk
Period 1-Raltegravir 400mg BID Period2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg BID
Group C
n=7 participants at risk
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID
Group D
n=7 participants at risk
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Period 3-Fosamprenavir 700mg BID + Raltegravir 100mg BID
Group E
n=6 participants at risk
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID
Group F
n=6 participants at risk
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg QD + Ritonavir 100mg QD + Raltegravir 400mg BID Period 3-Fosamprenavir 1400mg QD + Ritonavir 100mg QD
Skin and subcutaneous tissue disorders
Rash
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
33.3%
2/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
14.3%
1/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
16.7%
1/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
General disorders
Fatigue
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
28.6%
2/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
14.3%
1/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
General disorders
Headache
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
14.3%
1/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
28.6%
2/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
16.7%
1/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
General disorders
Dizzy
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
14.3%
1/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
16.7%
1/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
16.7%
1/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
General disorders
Dry mouth/loss of appetite
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
14.3%
1/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
14.3%
1/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
16.7%
1/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
16.7%
1/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
General disorders
Sinus infection/Flu like symptoms
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
28.6%
2/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
14.3%
1/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
General disorders
Numbness of mouth/lips/tongue
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
16.7%
1/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
General disorders
Increased urination
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
14.3%
1/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
Gastrointestinal disorders
Nausea/Vomiting/Diarrhea
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
50.0%
3/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
71.4%
5/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
71.4%
5/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
50.0%
3/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
50.0%
3/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
General disorders
Sleep disturbance
0.00%
0/5 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/7 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
16.7%
1/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.
0.00%
0/6 • Reported Adverse Events (AE) included events starting on or after Day 0 through Day 49.
If a subject experienced more than 1 of a given AE, the subject is counted only once for that AE.

Additional Information

David Condoluci

Garden State Infectious Disease Associates

Phone: 856-566-3190

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place