Trial Outcomes & Findings for An Interaction Study to Assess Drug Levels in Fasting Healthy Adult Subjects (NCT NCT00802074)

NCT ID: NCT00802074

Last Updated: 2016-01-29

Results Overview

Amprenavir (APV) is the active ingredient/metabolite of Fosamprenavir (FPV). 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

45 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 Period2- 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
9
8
7
7
7
7
Overall Study
COMPLETED
7
7
6
7
7
7
Overall Study
NOT COMPLETED
2
1
1
0
0
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 Period2- 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
1
1
1
0
0
0
Overall Study
Withdrawal by Subject
1
0
0
0
0
0

Baseline Characteristics

An Interaction Study to Assess Drug Levels in Fasting Healthy Adult Subjects

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group A
n=7 Participants
Period 1-Raltegravir 400mg BID Period 2- Fosamprenavir 1400mg BID Period 3- Fosamprenavir 1400mg BID + Raltegravir 400mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Group B
n=7 Participants
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3 Fosamprenavir 1400mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Group C
n=6 Participants
Period 1-Raltegravir 400mg BID Period2- Fosamprenavir 700mg BID + Ritonavir 100mg BID Period 3- Fosamprenavir 700mg BID + Ritonavir 100mg BID + Raltegravir 400mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg 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 + Ritonavir 100mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Group E
n=7 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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Group F
n=7 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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Total
n=41 Participants
Total of all reporting groups
Age, Customized
18-25
4 participants
n=5 Participants
4 participants
n=7 Participants
3 participants
n=5 Participants
3 participants
n=4 Participants
3 participants
n=21 Participants
3 participants
n=8 Participants
20 participants
n=8 Participants
Age, Customized
26-33
2 participants
n=5 Participants
0 participants
n=7 Participants
2 participants
n=5 Participants
1 participants
n=4 Participants
4 participants
n=21 Participants
3 participants
n=8 Participants
12 participants
n=8 Participants
Age, Customized
34-41
0 participants
n=5 Participants
2 participants
n=7 Participants
1 participants
n=5 Participants
1 participants
n=4 Participants
0 participants
n=21 Participants
0 participants
n=8 Participants
4 participants
n=8 Participants
Age, Customized
42-49
1 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
1 participants
n=4 Participants
0 participants
n=21 Participants
0 participants
n=8 Participants
2 participants
n=8 Participants
Age, Customized
50 and older
0 participants
n=5 Participants
1 participants
n=7 Participants
0 participants
n=5 Participants
1 participants
n=4 Participants
0 participants
n=21 Participants
1 participants
n=8 Participants
3 participants
n=8 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
4 Participants
n=7 Participants
2 Participants
n=5 Participants
2 Participants
n=4 Participants
3 Participants
n=21 Participants
4 Participants
n=8 Participants
18 Participants
n=8 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
3 Participants
n=7 Participants
4 Participants
n=5 Participants
5 Participants
n=4 Participants
4 Participants
n=21 Participants
3 Participants
n=8 Participants
23 Participants
n=8 Participants
Region of Enrollment
United States
7 participants
n=5 Participants
7 participants
n=7 Participants
6 participants
n=5 Participants
7 participants
n=4 Participants
7 participants
n=21 Participants
7 participants
n=8 Participants
41 participants
n=8 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

Amprenavir (APV) is the active ingredient/metabolite of Fosamprenavir (FPV). 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=14 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=13 Participants
Group C Period 1-Raltegravir 400mg BID Period2- 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=14 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 + Ritonavir 100mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Cmin/Cmax: Fasting 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)
0.57 ng/mL
Interval 0.43 to 0.76
0.81 ng/mL
Interval 0.58 to 1.13
0.50 ng/mL
Interval 0.34 to 0.74
Cmin/Cmax: Fasting 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)
0.73 ng/mL
Interval 0.53 to 1.01
0.86 ng/mL
Interval 0.64 to 1.15
0.82 ng/mL
Interval 0.67 to 0.99

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

Amprenavir (APV) is the active ingredient/metabolite of Fosamprenavir (FPV). 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=14 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=13 Participants
Group C Period 1-Raltegravir 400mg BID Period2- 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=14 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 + Ritonavir 100mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
AUC: Fasting 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.
0.64 ng•h/mL
Interval 0.47 to 0.88
0.84 ng•h/mL
Interval 0.64 to 1.08
0.76 ng•h/mL
Interval 0.59 to 0.97

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

Amprenavir (APV) is the active ingredient/metabolite of Fosamprenavir (FPV). 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=14 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=13 Participants
Group C Period 1-Raltegravir 400mg BID Period2- 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=14 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 + Ritonavir 100mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
CL/F: Fasting 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.
1.57 L/h
Interval 1.14 to 2.16
1.05 L/h
Interval 0.74 to 1.5
1.63 L/h
Interval 1.22 to 2.18

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

Amprenavir (APV) is the active ingredient/metabolite of Fosamprenavir (FPV). 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=14 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=13 Participants
Group C Period 1-Raltegravir 400mg BID Period2- 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=14 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 + Ritonavir 100mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Cmin/Cmax: Steady-state Plasma RTG PK Following Admin of RTG 400mg BID Alone and Following Co-administration With FPV 1400mg BID, FPV 700mg/RTV 100 mg BID, or FPV 1400mg/RTV 100mg QD
Cmin (ng/mL)
0.62 ng/mL
Interval 0.43 to 0.89
0.64 ng/mL
Interval 0.43 to 0.97
0.75 ng/mL
Interval 0.59 to 0.96
Cmin/Cmax: Steady-state Plasma RTG PK Following Admin of RTG 400mg BID Alone and Following Co-administration With FPV 1400mg BID, FPV 700mg/RTV 100 mg BID, or FPV 1400mg/RTV 100mg QD
Cmax (ng/mL)
0.72 ng/mL
Interval 0.41 to 1.26
0.49 ng/mL
Interval 0.25 to 0.97
1.06 ng/mL
Interval 0.62 to 1.81

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

Amprenavir (APV) is the active ingredient/metabolite of Fosamprenavir (FPV). 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=14 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=13 Participants
Group C Period 1-Raltegravir 400mg BID Period2- 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=14 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 + Ritonavir 100mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
AUC: Steady-state Plasma RTG PK Following Administration of RTG 400mg BID Alone and Following Co-administration With FPV 1400mg BID, FPV 700mg/RTV 100 mg BID, or FPV 1400mg/RTV 100mg QD
0.63 ng*h/mL
Interval 0.4 to 0.99
0.45 ng*h/mL
Interval 0.24 to 0.84
0.85 ng*h/mL
Interval 0.54 to 1.33

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

Amprenavir (APV) is the active ingredient/metabolite of Fosamprenavir (FPV). 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=14 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=13 Participants
Group C Period 1-Raltegravir 400mg BID Period2- 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=14 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 + Ritonavir 100mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
CL/F: Steady-state Plasma RTG PK Following Administration of RTG 400mg BID Alone and Following Co-administration With FPV 1400mg BID, FPV 700mg/RTV 100 mg BID, or FPV 1400mg/RTV 100mg QD
1.46 L/h
Interval 0.92 to 2.2
2.00 L/h
Interval 1.1 to 3.62
1.18 L/h
Interval 0.77 to 1.79

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 AE's for each sequence and not for each regimen. 3The 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=7 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=7 Participants
Group C Period 1-Raltegravir 400mg BID Period2- 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=6 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 + Ritonavir 100mg BID Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Group E
n=7 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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Group F
n=7 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 Raltegravir: 400mg BID Fosamprenavir: 1400mg BID, 700 mg BID or 1400 mg QD
Number of Participants Who Experienced Adverse Events
3 participants
3 participants
4 participants
4 participants
5 participants
5 participants

Adverse Events

Group A

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Group B

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Group C

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

Group D

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Group A
n=7 participants at risk
Period 1-Raltegravir 400mg BID Period 2- Fosamprenavir 1400mg BID Period 3- Fosamprenavir 1400mg BID + Raltegravir 400mg BID
Group B
n=7 participants at risk
Period 1-Raltegravir 400mg BID Period 2-Fosamprenavir 1400mg BID + Raltegravir 400mg BID Period 3 Fosamprenavir 1400mg BID
Group C
n=6 participants at risk
Period 1-Raltegravir 400mg BID Period2- 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 + Ritonavir 100mg BID
Group E
n=7 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=7 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
Gastrointestinal disorders
Nausea/Vomiting/Diarrhea
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.
42.9%
3/7 • 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.
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.
57.1%
4/7 • 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.
57.1%
4/7 • 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.
57.1%
4/7 • 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.
General disorders
fatigue
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.
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.
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.
General disorders
numbness of lips/tongue/mouth
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.
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.
42.9%
3/7 • 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.
Nervous system disorders
headache/migraine
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.
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.
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.
General disorders
cold symptoms/uri/fever
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.
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.
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.
Gastrointestinal disorders
Itching
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.
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.
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.
General disorders
frequent urination
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%
0/7 • 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%
0/7 • 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.

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