VX-950-TiDP24-C133 - A Phase I Study Investigating the Interaction Between Telaprevir and Escitalopram

December 16, 2010 updated by: Tibotec BVBA

A Phase I, Open-label, Randomized, Crossover Trial in 16 Healthy Subjects to Investigate the Potential Pharmacokinetic Interaction Between Telaprevir and Escitalopram at Steady-state

The purpose of this study is to investigate the effect of steady-state telaprevir (TVR) 750 mg q8h (3 times a day, every 8 hours) on the steady-state pharmacokinetics of escitalopram 10 mg q.d. (once a day), and vice versa. Steady state is a term which means that the drug has been given long enough so that the plasma concentrations will remain the same with each subsequent dose. TVR is being investigated for the treatment of chronic hepatitis C virus (HCV) infection. Pharmacokinetics (pk) means how the drug is absorbed into the bloodstream, distributed in the body and eliminated from the body.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Telaprevir is being investigated for treatment of chronic HCV infection, in combination with Peg-IFN (pegylated interferon) and RBV (ribavirin). Peg-IFN plus RBV are currently an accepted methode for treating HCV. Treatment with Peg-IFN plus RBV for HCV infection is associated with a high rate of depression. The results of this study will provide dosing recommendations for coadministration of Telaprevir (TVR) and escitalopram in HCV-infected patients. This is a Phase I, open-label (both participant and investigator know the name of the medication), randomized (study medication assigned by chance), crossover trial in 16 healthy participants to investigate the pharmacokinetic interaction between escitalopram and TVR, both at steady state. Steady state is a term which means that the drug has been given long enough so that the plasma concentrations will remain the same with each subsequent dose. The participants will receive two treatments (treatment A-B or treatment B-A) in a randomized order. In Treatment A, participants will receive escitalopram 10 mg once daily (q.d.) for 7 days. In Treatment B, participants will receive TVR 750 mg every 8 hours (q8h) for 14 days, with coadministration of escitalopram 10 mg q.d. from Day 8 to Day 14. There will be a washout period (a period where no treatment will be taken in view of having all the medication eliminated from the body before starting a new treatment) of at least 14 days between last intake of study medication in one session and first intake of study medication in the subsequent session. All study medication will be taken with food. Escitalopram will be taken once daily in the morning. During coadministration of TVR and escitalopram, the first dose of TVR should be taken together with escitalopram in the morning. Pharmacokinetic profiles of the two compounds will be measured through blood samples taken at regular intervals during the study and safety and tolerability will be assessed during the study period and in follow-up. Safety and tolerability evaluations will be recorded at regular intervals throughout the trial period. Blood and urine samples, electrocardiogram (ECG) and vital signs (blood pressure and hart rate) will be taken at screening, before medication intake on days 1 and 7 in each session and on day 14 in treatment B and at the 2 follow up visits at 5-7 and 30-32 days after last dose of drug in the last session. A physical examination will be performed at screening, on day before first medication intake in each session and during the 2 follow up visits. Participants in Treatment A will receive oral escitalopram 10 mg once daily for 7 days and in Treatment B participants will receive TVR 750 mg q8h from Day 1 to Day 14, with coadministration of escitalopram 10 mg q.d. from Day 8 to Day 14.

Study Type

Interventional

Enrollment (Actual)

16

Phase

  • Phase 1

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Females should be post-menopausal for at least 2 years (amenorrheal for at least 3 years), or have undergone tubal ligation (or other permanent birth control methods), or hysterectomy (total), or oophorectomy (bilateral), and should not be breastfeeding
  • Nonsmoking or smoking no more than 10 cigarettes, or 2 cigars, or 2 pipes per day for at least 3 months before study screening
  • Body mass index (BMI, weight in kg divided by the square of height in meters) of 18 to 30 kg/m2, extremes included, at study screening
  • normal 12-lead ECG at screening
  • Healthy on the basis of a physical examination, medical history, vital signs, and the results of blood chemistry, hematological and coagulation tests and urinalysis carried out at screening

Exclusion Criteria:

  • Participants should stop any short-duration courses of prescription medication at least 14 days before first intake of study medication, potential participants should not stop any chronic, prescribed medication being taken at the direction of a physician, without obtaining agreement from that physician
  • Participants should stop over-the-counter medications on the date of the screening visit but no less than 7 days prior to the first administration of study medication, potential participants should not stop any chronic, over-the-counter medication being taken at the direction of a physician, without obtaining agreement from that physician
  • Consumption of more than 2 units of alcoholic beverages per day or more than 14 units per week (1 unit of alcohol equals 1 glass [285 mL] of beer, 1 glass [125 mL] of wine, 25 mL shot of 40% spirit) from 14 days before the first intake of study medication until completion of the pharmacokinetic sampling in the last treatment session
  • Participants may not consume any alcohol 72 hours before or after study drug administration
  • Positive test for any of the following infectious disease tests: hepatitis A infection (confirmed by hepatitis A antibody IgM), hepatitis B antigen (HBsAg), hepatitis C virus antibody (HCVAb), human immunodeficiency virus 1 antibody (HIV1Ab), or human immunodeficiency virus 2 antibody (HIV2Ab)
  • Male participants with female partners that are planning to become pregnant during the study or within 90 days of the last dose of study medication

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
To investigate the effect at steady-state of TVR 750 mg q8h on the steady-state pharmacokinetics of escitalopram 10 mg q.d. in healthy participants and vica versa.
Time Frame: pk profiles of TVR will be measured up to 8 hours after intake of the morning dose on Day 7 and 14 of Treatment B. Pharmacokinetic profiles of escitalopram will be measured up to 24 hours postdose on Day 7of Treatment A and Day 14 of Treatment B.
pk profiles of TVR will be measured up to 8 hours after intake of the morning dose on Day 7 and 14 of Treatment B. Pharmacokinetic profiles of escitalopram will be measured up to 24 hours postdose on Day 7of Treatment A and Day 14 of Treatment B.

Secondary Outcome Measures

Outcome Measure
Time Frame
The short-term safety and tolerability of coadministration of TVR and escitalopram in healthy participants
Time Frame: This will be determined throughout the study; at all study visits
This will be determined throughout the study; at all study visits

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Tibotec BVBA

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2009

Primary Completion (Actual)

November 1, 2009

Study Completion (Actual)

November 1, 2009

Study Registration Dates

First Submitted

July 2, 2009

First Submitted That Met QC Criteria

July 2, 2009

First Posted (Estimate)

July 7, 2009

Study Record Updates

Last Update Posted (Estimate)

December 17, 2010

Last Update Submitted That Met QC Criteria

December 16, 2010

Last Verified

December 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CR016303

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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