A Study of Drug-drug Interaction Between Ritonavir and TMC435350 in Healthy Volunteers

NCT ID: NCT01891851

Last Updated: 2013-10-14

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE1
• Total Enrollment: 12 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2007-10-31
• Study Completion Date: 2008-01-31

Brief Summary

The purpose of this study is to evaluate the drug-drug interaction between steady-state concentrations of CYP3A4 or ritonavir and TMC435350 after its first and the last dose of the multiple dosing regimen and to explore the short term safety and tolerability of multiple doses of 200 mg of TMC435350 administered alone and in combination with 100 mg of ritonavir.

Detailed Description

This trial is a Phase I, open label trial (meaning that both the research physician and study participants will know which medication is being administered during the trial) in 12 healthy volunteers (referred to as participants) to investigate the effect of ritonavir, a marketed product used in several HIV medications, on the plasma levels of TMC435350, a new investigational drug in process of development for the treatment of hepatitis-C virus (HCV) infections. TMC435350 is a protease inhibitor (PI), a class of drugs that selectively inhibit the replication of the virus thereby inhibiting the progression of HCV infection. Plasma levels of TMC435350 are circulating levels of TMC435350 in the blood that are important for the antiviral activity of TMC435350. Ritonavir has the ability to increase the circulating levels of other compounds administered on the same day as Ritonavir. The trial will consist of 2 sequential sessions (Session 1 and Session 2) and all participants enrolled in the study will enter each session. In Session 1, participants will take TMC435350 200mg orally (by mouth) once daily for 7 days. There will be a waiting period of at least 7 days to allow any drug left in the body after the last treatment in Session 1 to be eliminated before the start of Session 2 (referred to as a "washout period"). In Session 2, participants will take ritonavir 100 mg orally twice daily on Days 1 to 15 and TMC435350 200mg once daily on Days 6 to 12. All study drugs in both treatment sessions will be taken under fed conditions (i. e., participants will eat a standard breakfast within approximately 30 minutes before they take study drug). Full pharmacokinetic profiles of TMC435350 (to investigate how the drug moves through the body, including the absorption, distribution, metabolism and elimination of the drug) will be determined from blood samples obtained on Days 1 and 7 of Session 1 and on Days 6 and 12 of Session 2. Safety and tolerability will be recorded continuously. The total duration of treatment in the study for each participant will be approximately 30 days (includes 7 days of treatment in Session 1, 16 days of treatment in Session 2, and a washout period of at least 7 days between treatment sessions).

Conditions

Healthy

Keywords

Healthy; Hepatitis C; TMC435350; Ritonavir; Pharmacokinetics

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

TMC435350 / Ritonavir

TMC435350 2 capsules of 100-mg twice daily / Ritonavir one 100-mg capsule twice daily

Group Type: EXPERIMENTAL

TMC435350 200 mg

Intervention Type: DRUG

Each patient will receive 200 mg (2 capsules) once daily orally from Day 1 to Day 7 in Session 1 and from Day 6 to Day 12 in Session 2

Ritonavir 100 mg

Intervention Type: DRUG

Each patient will receive 100 mg (1 capsule) of ritonavir twice daily orally from Day 1 until Day 15 of Session 2

Interventions

TMC435350 200 mg

Each patient will receive 200 mg (2 capsules) once daily orally from Day 1 to Day 7 in Session 1 and from Day 6 to Day 12 in Session 2

Intervention Type: DRUG

Ritonavir 100 mg

Each patient will receive 100 mg (1 capsule) of ritonavir twice daily orally from Day 1 until Day 15 of Session 2

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• non-smoking for at least 3 months prior to selection

• normal weight as defined by a Quetelet Index (Body Mass Index: weight in kg divided by the square of height in meters) of 18.0 to 30.0 kg/m2, extremes included
• Informed Consent Form signed voluntarily, prior to the first trial related activity
• normal 12-lead electrocardiogram (ECG) at screening
• healthy on the basis of a medical evaluation and results fo the laboratory tests at screening.

Exclusion Criteria

• past history of heart arrhythmias,

• female, except if postmenopausal for more than two years, or post-hysterectomy or post-tubal ligation (without reversal operation)
• history or evidence of current use of alcohol, barbiturate, amphetamine, recreational or narcotic drug use
• hepatitis A, B and C infections or human immunodeficiency virus type 1 (HIV-1) or HIV-2 infections at study screening
• donation of blood or plasma in the 60 days preceding the first intake of trial medication

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 55 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: Yes

Sponsors

Tibotec Pharmaceuticals, Ireland

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Tibotec Pharmaceuticals Limited, Ireland Clinical Trial

Role: STUDY_DIRECTOR

Tibotec Pharmaceuticals, Ireland

Locations

Aalst, , Belgium

Countries

Belgium

Related Links

http://filehosting.pharmacm.com/DownloadService.ashx?client=CTR_JNJ_6051&studyid=2177&filename=CR014773_CSR.pdf

Phase I, open-label trial in healthy subjects to evaluate the drug-drug interaction between ritonavir at steady-state and TMC435350, a viral protease inhibitor against hepatitis C virus, after the first and the last dose of a multiple dosing regimen

Other Identifiers

TMC435350-TiDP16-C104

Identifier Type: OTHER

Identifier Source: secondary_id

CR014773

Identifier Type: -

Identifier Source: org_study_id