Ribavirin Bioavailability After Telaprevir Exposure

August 26, 2016 updated by: Hospices Civils de Lyon

Ribavirin Bioavailability After Telaprevir Exposure in Hepatitis C Patients Treated With PEGylated -Interferon/Ribavirin/Telaprevir Triple Therapy

Anemia is more frequent in patients receiving telaprevir with pegylated-interferon/ribavirin than in those receiving pegylated-interferon/ribavirin alone. The objective was to measure the impact of telaprevir on ribavirin bioavailability and to assess the concomitant renal function.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

37

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Lyon, France
        • Hôpital de La Croix Rousse

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Hepatitis C virus (HCV) infected patients with a previous non-response to pegylated-interferon/ribavirin therapy and re-treated with pegylated-interferon/ribavirin and telaprevir

Description

Inclusion Criteria:

  • Patients with hepatitis C virus infection
  • Previous non-response to pegylated-interferon/ribavirin therapy
  • Re-treatment with pegylated-interferon/ribavirin and telaprevir

Exclusion Criteria:

  • Decompensated liver cirrhosis

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Hepatitis C patients
Hepatitis C virus (HCV) infected patients with a previous non-response to pegylated-interferon/ribavirin therapy and re-treated with pegylated-interferon/ribavirin and telaprevir
Drug: Triple therapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in ribavirin plasma trough concentration between baseline and week 4 of triple therapy
Time Frame: before telaprevir initiation during the previous course of PEG (pegylated)-IFN (interferon)/ribavirin combination therapy (T-1), and during the early phase (week 4 ± 2 weeks) of therapy
Plasma ribavirin trough concentrations were measured using a validated high-performance liquid chromatography-diode array detector method, a highly specific, sensible, and precise method of quantification
before telaprevir initiation during the previous course of PEG (pegylated)-IFN (interferon)/ribavirin combination therapy (T-1), and during the early phase (week 4 ± 2 weeks) of therapy

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in renal function between baseline and week 4 of triple therapy
Time Frame: Before telaprevir initiation (T-1), and during the early phase (week 4 ± 2 weeks) of therapy
Renal function was assessed with the commonly used Modification of the Diet in Renal Disease (MDRD) study equation which allows to assess the estimated glomerular filtration rate (eGFR).
Before telaprevir initiation (T-1), and during the early phase (week 4 ± 2 weeks) of therapy
Ribavirin plasma trough concentration at week 8 of therapy
Time Frame: at the later phase of therapy (Week 8 ± 2 weeks)
at the later phase of therapy (Week 8 ± 2 weeks)
Ribavirin plasma trough concentration after telaprevir withdrawal
Time Frame: after telaprevir cessation (at least 4 weeks after telaprevir withdrawal (Week 16))
after telaprevir cessation (at least 4 weeks after telaprevir withdrawal (Week 16))
Renal function at week 8 of therapy
Time Frame: at the later phase of therapy (Week 8 ± 2 weeks)
at the later phase of therapy (Week 8 ± 2 weeks)
Renal function after telaprevir withdrawal
Time Frame: after telaprevir cessation (at least 4 weeks after telaprevir withdrawal (Week 16))
after telaprevir cessation (at least 4 weeks after telaprevir withdrawal (Week 16))

Collaborators and Investigators

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

Sponsor

Hospices Civils de Lyon

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

February 1, 2014

Primary Completion (Actual)

February 1, 2015

Study Completion (Actual)

February 1, 2015

Study Registration Dates

First Submitted

August 18, 2016

First Submitted That Met QC Criteria

August 25, 2016

First Posted (Estimate)

August 26, 2016

Study Record Updates

Last Update Posted (Estimate)

August 29, 2016

Last Update Submitted That Met QC Criteria

August 26, 2016

Last Verified

August 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 69HCL16_0557

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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