Ombitasvir/Paritaprevir/Ritonavir and Dasabuvir With and Without Ribavirin in Protease-Inhibitors ("PI") Failures

January 4, 2016 updated by: michal roll, Tel-Aviv Sourasky Medical Center

An Open-label, Multi-center Study to Evaluate Sustained Virologic Response With Ombitasvir/Paritaprevir/Ritonavir and Dasabuvir With and Without Ribavirin in Genotype 1 Chronic Hepatitis C Virus Infected Patients With Past PI Failure

The purpose of this study is to evaluate the efficacy and safety of triple therapy of AbbVie adults with chronic hepatitis C virus ("HCV"), who have not responded to prior treatment with protease inhibitors.

The "Triple therapy" of AbbVie attacks various sites of the viral genome, thus increasing the potential efficacy of the treatment, especially for patients who have failed PI treatment.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Patients with genotype 1 HCV, who underwent past triple therapy (Telaprevir, Boceprevir or Simeprevir with Pegylated interferon / Ribavirin) and are non-responders, partial responders or in relapse - will be screened in all research centers up to 30 days before the first treatment.

At the end of the initial assessment - the recruited participants will be allocated to different treatment groups in accordance with the hepatitis virus subtype 1a, 1b and presence of cirrhosis, as follows:

  • Group A - genotype 1b without cirrhosis - 12 weeks of treatment *
  • Group B - genotype 1b with cirrhosis - 12 weeks of treatment
  • Group C - genotype 1a without cirrhosis - 12 weeks of treatment
  • Group D - genotype 1a with cirrhosis - 24 weeks of treatment

(* Only this group will not get Ribavirin)

During the treatment period, participants will be asked to describe the treatment's tolerability (in terms of side effects) using self-administered questionnaires: SF-36, and WPAI Hep C v2.0.

The follow up will also include physical assessments, side effects documentation, blood tests, abdominal Ultrasound and Fibroscan.

Study Type

Interventional

Enrollment (Anticipated)

120

Phase

  • Phase 3

Contacts and Locations

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

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

Description

Inclusion Criteria:

  • Diagnosis of hepatitis C, genotype 1A or 1B.
  • Documentation of PI failure of treatment at least 12 months prior to study entry.
  • Patients with cirrhosis - (only patients with cirrhosis Child A with only 5 points).

Exclusion Criteria:

  • Inability to stay in the study for 36 weeks.
  • Diagnosis of cross-contamination by HIV or Hepatitis B virus.
  • Renal disfunction (creatinine clearance <30 ml / min).
  • Evidence of hepatic carcinoma.
  • Another serious disease, which may interfere with the study.
  • Pregnant / breast-feeding women.
  • Men with pregnant partners.
  • Drug or alcohol abuse in the six months preceding the study.
  • Chronic liver disease other than hepatitis C (such as Primary biliary cirrhosis, Primary sclerosing cholangitis, Autoimmune hepatitis).
  • Current other treatment for HCV.
  • Past PI Failure due to adverse events.
  • Patients with cirrhosis Child B.
  • Patients with cirrhosis, who were at child B and improved to child A after treatment.

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: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Genotype 1b without cirrhosis
12 weeks without Ribavirin
Drug: 12 weeks without Ribavirin
12 weeks Triple Therapy: Ombitasvir, Paritaprevir, Ritonavir (25/150/100 mg dose) once daily and Dasabuvir 250 mg twice daily.
Other Names:
  • Triple therapy
Experimental: Genotype 1b with cirrhosis
12 weeks with Ribavirin
Drug: 12 weeks with Ribavirin
12 weeks Triple Therapy: Ombitasvir, Paritaprevir, Ritonavir 25/150/100 mg dose once daily + Dasabuvir 250 mg twice daily + weight adjusted Ribavirin, daily dose: 1,000 mg weight <75 kg, 1,200 mg weight> 75 kg.
Other Names:
  • Triple therapy
Experimental: Genotype 1a without cirrhosis
12 weeks with Ribavirin
Drug: 12 weeks with Ribavirin
12 weeks Triple Therapy: Ombitasvir, Paritaprevir, Ritonavir 25/150/100 mg dose once daily + Dasabuvir 250 mg twice daily + weight adjusted Ribavirin, daily dose: 1,000 mg weight <75 kg, 1,200 mg weight> 75 kg.
Other Names:
  • Triple therapy
Experimental: Genotype 1a with cirrhosis
24 weeks with Ribavirin
Drug: 24 weeks with Ribavirin
24 weeks Triple Therapy: Ombitasvir, Paritaprevir, Ritonavir 25/150/100 mg dose once daily + Dasabuvir 250 mg twice daily + weight adjusted Ribavirin, daily dose: 1,000 mg weight <75 kg, 1,200 mg weight> 75 kg.
Other Names:
  • Triple therapy

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
"SVR" (sustained virologic response) rates
Time Frame: 12 weeks after end of treatment
Sustained virologic response
12 weeks after end of treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
"SF" (short-form)-36 health survey
Time Frame: Day 1, weeks 4, 12, 24, 36.
psychometrically-based physical and mental health and a preference-based health utility index.
Day 1, weeks 4, 12, 24, 36.
WPAI Hep C v2.0 questionnaire
Time Frame: Day 1, weeks 4, 12, 24, 36.
a scoring manual for work productivity and activity impairment assessment.
Day 1, weeks 4, 12, 24, 36.

Collaborators and Investigators

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

Sponsor

Tel-Aviv Sourasky Medical Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

January 1, 2016

Primary Completion (Anticipated)

January 1, 2018

Study Completion (Anticipated)

January 1, 2019

Study Registration Dates

First Submitted

December 28, 2015

First Submitted That Met QC Criteria

January 4, 2016

First Posted (Estimate)

January 5, 2016

Study Record Updates

Last Update Posted (Estimate)

January 5, 2016

Last Update Submitted That Met QC Criteria

January 4, 2016

Last Verified

January 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TASMC-15-OS-503-CTIL

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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