A Drug Interaction Study to Assess the Pharmacokinetics of Narlaprevir and Antiretroviral Drugs
Overview
- Phase
- Phase 1
- Intervention
- Narlaprevir
- Conditions
- Healthy
- Sponsor
- R-Pharm
- Enrollment
- 36
- Locations
- 1
- Primary Endpoint
- AUCtau of Tenofovir
- Status
- Completed
- Last Updated
- 7 years ago
Overview
Brief Summary
The study purpose is to evaluate the potential for a pharmacokinetic drug-drug interaction, safety and tolerability when Narlaprevir, Ritonavir (used as a metabolic inhibitor) and Tenofovir disoproxil fumarate (part 1) and Narlaprevir, Ritonavir and Raltegravir (part 2) are administered in combination to healthy volunteers.
Detailed Description
The current study includes 2 parts, as the following drugs may be used concomitantly to treat hepatitis C virus (HCV)/HIV coinfection: * Part 1 of the study is being conducted to evaluate the pharmacokinetic effect of coadministration of narlaprevir with ritonavir and tenofovir disoproxil fumarate. * Part 2 of the study is being conducted to evaluate the pharmacokinetic effect of coadministration of narlaprevir/ritonavir and raltegravir. Each part of the study is designed as a randomized 3-period crossover study and will assess if there is any effect of tenofovir disoproxil fumarate or raltegravir on the pharmacokinetics of narlaprevir and vice versa. Subjects will be screened within 28 days before dosing in this multi-part study. All subjects eligible for protocol criteria will be randomized 1:1:1 to receive one of the following treatment sequences: A/B/C, or B/C/A, or C/A/B. Every subject will receive only one treatment (A or B or C) in one Period. Subjects will be confined to the study center throughout treatment in each period. Following completion of study procedures for each treatment period, subjects will be released from the clinic. After a 7-14 (maximum) days interval between dosing, subjects will return to start hospitalization for the next treatment period. Subjects will be discharged from the study upon completion of all study related procedures in Period 3. Phone call will be conducted after 5-7 days of follow-up period to assess safety data. This drug interaction study is designed to investigate pharmacokinetic drug-drug interactions between Narlaprevir coadministered with Ritonavir and antiretroviral drugs (Tenofovir disoproxil fumarate and Raltegravir) for labeling and clinical dosing guidance purposes.
Investigators
Eligibility Criteria
Inclusion Criteria
- Not provided
Exclusion Criteria
- Not provided
Arms & Interventions
Treatment A (Part 1/ Part 2)
Narlaprevir 200 mg once daily with Ritonavir 100 mg once daily for 5 days
Intervention: Narlaprevir
Treatment A (Part 1/ Part 2)
Narlaprevir 200 mg once daily with Ritonavir 100 mg once daily for 5 days
Intervention: Ritonavir
Treatment B (Part 1)
Tenofovir disoproxil fumarate 300 mg once daily for 5 days
Intervention: Tenofovir Disoproxil Fumarate
Treatment B (Part 2)
Raltegravir 400 mg twice daily for 5 days
Intervention: Raltegravir
Treatment C (Part 1)
Narlaprevir 200 mg once daily coadministered with ritonavir 100 mg once daily and Tenofovir disoproxil fumarate 300 mg once daily for 5 days
Intervention: Narlaprevir
Treatment C (Part 1)
Narlaprevir 200 mg once daily coadministered with ritonavir 100 mg once daily and Tenofovir disoproxil fumarate 300 mg once daily for 5 days
Intervention: Ritonavir
Treatment C (Part 1)
Narlaprevir 200 mg once daily coadministered with ritonavir 100 mg once daily and Tenofovir disoproxil fumarate 300 mg once daily for 5 days
Intervention: Tenofovir Disoproxil Fumarate
Treatment C (Part 2)
Narlaprevir 200 mg once daily coadministered with ritonavir 100 mg once daily and 400 mg raltegravir twice daily for 5 days
Intervention: Narlaprevir
Treatment C (Part 2)
Narlaprevir 200 mg once daily coadministered with ritonavir 100 mg once daily and 400 mg raltegravir twice daily for 5 days
Intervention: Ritonavir
Treatment C (Part 2)
Narlaprevir 200 mg once daily coadministered with ritonavir 100 mg once daily and 400 mg raltegravir twice daily for 5 days
Intervention: Raltegravir
Outcomes
Primary Outcomes
AUCtau of Tenofovir
Time Frame: Day 5 Pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 18 and 24 hrs post-dose on Day 5 of treatment B and C (Part 1)
Area Under the Concentration-time curve during a dosing interval τ at steady state of Tenofovir at Day 5 of treatment B and C of Part 1 of the study
Cmax of Raltegravir
Time Frame: Day 5 Pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 12 hrs post-dose of Day 5 of treatment B and C (Part 2)
Maximum observed Concentration of Raltegravir at Day 5 of treatment B and C of Part 2 of the study
Cmax of Narlaprevir
Time Frame: Day 5 Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 16 and 24 hours post-dose on Day 5 of treatment A and C (Part 1/ Part 2)
Maximum observed Concentration of Narlaprevir at Day 5 of treatment A and C of Part 1 or 2 of the study
AUCtau of Narlaprevir
Time Frame: Day 5 Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 16 and 24 hours post-dose on Day 5 of treatment A and C (Part 1/ Part 2)
Area Under the Concentration-time curve during a dosing interval τ at steady state of Narlaprevir at Day 5 of treatment A and C of Part 1/ Part 2 of the study
AUCtau of Raltegravir
Time Frame: Day 5 Pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 12 hrs post-dose of Day 5 of treatment B and C (Part 2)
Area Under the Concentration-time curve during a dosing interval τ at steady state of Tenofovir at Day 5 of treatment B and C of Part 2 of the study
Cmax of Tenofovir
Time Frame: Day 5 Pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 12, 16, 18 and 24 hrs post-dose on Day 5 of treatment B and C (Part 1)
Maximum observed Concentration of Tenofovir at Day 5 of treatment B and C of Part 1 of the study
Secondary Outcomes
- Number of Patients With Changes in Vital Signs(Up to 14 Days after the last dose of treatment in period 3 of each Part of the Study)
- Number of Patients With Abnormal Laboratory Values(Up to 14 Days after the last dose of treatment in period 3 of each Part of the Study)
- Number of Patients With Abnormal ECG Changes(Up to 14 Days after the last dose of treatment in period 3 of each Part of the Study)
- Number of Patients With Adverse Events(Up to 14 Days after the last dose of treatment in period 3 of each Part of the Study)