Effects of Tipranavir (With Ritonavir) Capsule and Liquid Formulation on Cytochrome P450 and P-glycoprotein Activity in Healthy Volunteers

NCT ID: NCT02243553

Last Updated: 2014-09-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

34 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-01-31

Brief Summary

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Primary: To quantify the influence of single-dose and steady-state tipranavir/ritonavir 500/200 mg on intestinal and hepatic cytochrome P450 (CYP) and P-glycoprotein (P-gp) biomarkers, as a means of predicting drug interactions. The AUCs for biomarkers caffeine, warfarin, omeprazole, dextromethorphan, midazolam, and digoxin will be assessed.

Detailed Description

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Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Treatment A

tipranavir (TPV) capsule + ritonavir (RTV) capsule + cocktail + digoxin oral

Group Type EXPERIMENTAL

Tipranavir capsule

Intervention Type DRUG

Ritonavir capsule

Intervention Type DRUG

Caffeine

Intervention Type DRUG

Warfarin sodium

Intervention Type DRUG

Vitamin K

Intervention Type DRUG

Omeprazole

Intervention Type DRUG

Dextromethorphan hydrobromide

Intervention Type DRUG

Midazolam injection

Intervention Type DRUG

Midazolam oral solution

Intervention Type DRUG

Digoxin tablet

Intervention Type DRUG

Treatment B

TPV capsule + RTV capsule + cocktail + digoxin injection

Group Type EXPERIMENTAL

Tipranavir capsule

Intervention Type DRUG

Ritonavir capsule

Intervention Type DRUG

Caffeine

Intervention Type DRUG

Warfarin sodium

Intervention Type DRUG

Vitamin K

Intervention Type DRUG

Omeprazole

Intervention Type DRUG

Dextromethorphan hydrobromide

Intervention Type DRUG

Midazolam injection

Intervention Type DRUG

Midazolam oral solution

Intervention Type DRUG

Digoxin injection

Intervention Type DRUG

Treatment C

TPV solution + RTV capsule + cocktail + digoxin oral

Group Type EXPERIMENTAL

Tipranavir solution

Intervention Type DRUG

Ritonavir capsule

Intervention Type DRUG

Caffeine

Intervention Type DRUG

Warfarin sodium

Intervention Type DRUG

Vitamin K

Intervention Type DRUG

Omeprazole

Intervention Type DRUG

Dextromethorphan hydrobromide

Intervention Type DRUG

Midazolam injection

Intervention Type DRUG

Midazolam oral solution

Intervention Type DRUG

Digoxin tablet

Intervention Type DRUG

Treatment D

TPV solution + RTV capsule + cocktail + digoxin injection

Group Type EXPERIMENTAL

Tipranavir solution

Intervention Type DRUG

Ritonavir capsule

Intervention Type DRUG

Caffeine

Intervention Type DRUG

Warfarin sodium

Intervention Type DRUG

Vitamin K

Intervention Type DRUG

Omeprazole

Intervention Type DRUG

Dextromethorphan hydrobromide

Intervention Type DRUG

Midazolam injection

Intervention Type DRUG

Midazolam oral solution

Intervention Type DRUG

Digoxin injection

Intervention Type DRUG

Interventions

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Tipranavir capsule

Intervention Type DRUG

Tipranavir solution

Intervention Type DRUG

Ritonavir capsule

Intervention Type DRUG

Caffeine

Intervention Type DRUG

Warfarin sodium

Intervention Type DRUG

Vitamin K

Intervention Type DRUG

Omeprazole

Intervention Type DRUG

Dextromethorphan hydrobromide

Intervention Type DRUG

Midazolam injection

Intervention Type DRUG

Midazolam oral solution

Intervention Type DRUG

Digoxin tablet

Intervention Type DRUG

Digoxin injection

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Signed informed consent
2. Healthy subjects aged between 18 years and 45 years inclusive
3. Weighing at least 50 kg
4. Volunteers must be hospitalized on Days 1-4, 7-9, and 17-20 for pharmacokinetic assessments for each biomarker and TPV/r (Days 7-9 and 17-20)
5. Volunteers must be willing to complete all study-related activities
6. Each volunteer must have a valid social security number
7. Each volunteer must have acceptable medical history, physical examination and laboratory test

Exclusion Criteria

1. History or presence of allergy to the study drugs or their components or drugs of their class, or a history of drug or other allergy that, in the opinion of the physician responsible, contraindicates their participation
2. Any finding of the medical examination (including blood pressure, pulse rate and electrocardiogram) deviating from normal and of clinical relevance
3. History or diagnosis of any significant medical conditions: Including but not limited to gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunologic, hematological, psychiatric, neurological, oncological or hormonal disorders
4. Known elevated liver enzymes in past clinical trials with any compound (experimental or marketed)
5. Clinically relevant laboratory abnormalities (e.g. Hgb\<11g/dL, Hct\<30g/dL, total cholesterol \>240mg/dL, triglycerides \>500mg/dL, fasting glucose \>130mg/dL, liver function tests \>2.5x upper limit of normal, baseline international normalized ratio \>1.2)
6. History of evidence of clinically significant hepatic, cardiac, pulmonary, endocrine, immunological, gastrointestinal, hematological, vascular or collagen disease
7. History of alcohol abuse or use of any illicit drugs
8. Unable to abstain from more than one beer or alcohol equivalent per day for the duration of the study
9. Use of tobacco products and/or history of smoking within the past 2 months
10. Pregnant or breast feeding
11. Sexually active women of childbearing age who do not use an acceptable barrier method of birth control
12. Hypersensitivity to caffeine, warfarin, vitamin K, omeprazole, dextromethorphan, midazolam, tipranavir, ritonavir or their excipients
13. Concomitant treatment with other experimental compounds
14. Concomitant administration of any prescription or over the counter medications known to alter P450 enzyme or P-gp activity
15. Concomitant administration of any prescription or over the counter medications known to be highly dependent on P450 or P-gp for clearance for which elevated plasma concentrations are known to be associated with serious toxicity
16. Concomitant administration of any food product known to alter P450 enzyme or P-gp activity such as grapefruit juice, Seville oranges
17. Concomitant administration of any drug that could affect bleeding (e.g., aspirin, clopidogrel, ticlopidine, warfarin, heparin, low-molecular weight heparin)
18. Concomitant administration of oral contraceptives (may be included with 7-day washout period)
19. Concomitant administration of any herbal medications
20. Inadequate venous access
21. Renal or hepatic insufficiency
22. Clinically unacceptable result at the screening physical examination
23. Use of investigational medications within 30 days before study entry
24. HIV-positive
25. Body Mass Index (BMI) \> 30 kg/m²
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Boehringer Ingelheim

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Other Identifiers

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1182.101

Identifier Type: -

Identifier Source: org_study_id

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