A Study of Telaprevir (VX-950), Pegasys and Copegus in Hepatitis C

This study has been completed.
Sponsor:
Information provided by:
Vertex Pharmaceuticals Incorporated
ClinicalTrials.gov Identifier:
NCT00420784
First received: January 8, 2007
Last updated: June 22, 2011
Last verified: June 2011
  Purpose

The PROVE3 trial is a partially double blinded, randomized, Phase 2 research study of an investigational drug, Telaprevir (VX-950) or Placebo, with peginterferon alfa-2a (Pegasys®), and ribavirin (Copegus®) in people with genotype 1 hepatitis C who have not achieved a Sustained Viral Response (SVR) with a previous treatment of interferon therapy.


Condition Intervention Phase
Hepatitis C
Drug: Telaprevir
Drug: Ribavirin
Drug: Peg-interferon Alfa-2a
Drug: Matching Placebo
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Phase 2 Study of Telaprevir in Combination With Peginterferon Alfa-2a, and Ribavirin in Subjects With Genotype 1 Hepatitis C Who Have Not Achieved Sustained Viral Response With a Prior Course of Interferon Based Therapy

Resource links provided by NLM:


Further study details as provided by Vertex Pharmaceuticals Incorporated:

Primary Outcome Measures:
  • Undetectable HCV RNA at 24 Weeks After the Completion of Treatment [ Time Frame: 24 weeks after the end of treatment (after actual last dose) ] [ Designated as safety issue: No ]
    The primary efficacy variable was the proportion of subjects with SVR, i.e., subjects with undetectable HCV RNA 24 weeks after the end of treatment (after actual last dose).


Secondary Outcome Measures:
  • Undetectable HCV RNA [ Time Frame: at the completion of treatment ] [ Designated as safety issue: No ]
    Proportion of subjects with an end of treatment response [undetectable HCV RNA at end of treatment])

  • Undetectable HCV RNA [ Time Frame: 48 weeks after completion of treatment ] [ Designated as safety issue: No ]
    Proportion of Subjects with Undetectable HCV RNA at 24 Weeks AVFU for Treatment Groups Pbo/PR48,and at 48 Weeks AVFU for Treatment Groups T12/PR24, T24/PR48 and T24/P24

  • Adverse Events and Clinical Laboratory Assessments, Including ALT and Other Liver Function Tests. [ Time Frame: throughout study ] [ Designated as safety issue: Yes ]
  • Genotypic and Phenotypic Analyses of the NS3•4A HCV Region. [ Time Frame: throughout study ] [ Designated as safety issue: No ]
  • Pharmacokinetic Assessments of Telaprevir, Peg-IFN-a-2a, and RBV. [ Time Frame: Week 24 ] [ Designated as safety issue: No ]

Enrollment: 465
Study Start Date: February 2007
Study Completion Date: April 2009
Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: T12/PR24
Telaprevir + Peg-IFN + RBV for 12 weeks followed by Placebo + Peg-IFN + RBV for 12 weeks
Drug: Telaprevir
tablet
Other Name: VX-950
Drug: Ribavirin
tablet
Other Name: RBV
Drug: Peg-interferon Alfa-2a
Solution for injection
Other Name: Peg-IFN
Experimental: T24/PR48
Telaprevir + Peg-IFN + RBV for 24 weeks followed by Peg-IFN + RBV for 24 weeks
Drug: Telaprevir
tablet
Other Name: VX-950
Drug: Ribavirin
tablet
Other Name: RBV
Drug: Peg-interferon Alfa-2a
Solution for injection
Other Name: Peg-IFN
Experimental: T24/P24
Telaprevir + Peg-IFN for 24 weeks
Drug: Telaprevir
tablet
Other Name: VX-950
Drug: Peg-interferon Alfa-2a
Solution for injection
Other Name: Peg-IFN
Placebo Comparator: Pbo24/PR48
Placebo + Peg-IFN + RBV for 24 weeks followed by Peg-IFN + RBV for 24 weeks
Drug: Ribavirin
tablet
Other Name: RBV
Drug: Peg-interferon Alfa-2a
Solution for injection
Other Name: Peg-IFN
Drug: Matching Placebo
Tablet

  Eligibility

Ages Eligible for Study:   18 Years to 70 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Males and females between 18 and 70 years old
  • Detectable plasma HCV RNA > or = 10,000 IU/mL
  • Must have chronic hepatitis C (genotype 1) and have already received at least one prior course of peginterferon with ribavirin
  • Can not also be infected with HIV (AIDS) or hepatitis B
  • Must be judged to be in general good health and able to receive Pegasys® and Copegus®.
  • No drug or alcohol abuse in the last year
  • Must agree to use two effective methods of birth control during the study and for 6 months after you stop taking study medication. One of the methods needs to be a 'barrier' method (condom or diaphragm)
  • If you are a woman, you can not be in this study if you are pregnant or nursing.

Exclusion Criteria:

  • Participation in any clinical trial of a HCV protease inhibitor of any duration.
  • Prior response to therapy and failure to achieve SVR which was due to treatment non-compliance
  • Any other cause of significant liver disease in addition to hepatitis C; this may include but is not limited to, hepatitis B, drug or alcohol-related cirrhosis, autoimmune hepatitis, hemochromatosis, Wilson's disease, nonalcoholic steatohepatitis, or primary biliary cirrhosis.
  • Diagnosed or suspected hepatocellular carcinoma.
  • History of or current evidence of decompensated liver disease.
  • Participation in any clinical trial of an investigational drug within 90 days before drug administration or participation in more than 2 drug studies in the last 12 months (exclusive of the current study).
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00420784

  Show 53 Study Locations
Sponsors and Collaborators
Vertex Pharmaceuticals Incorporated
Investigators
Study Director: Medical Monitor Vertex Pharmaceuticals Incorporated
  More Information

No publications provided by Vertex Pharmaceuticals Incorporated

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Robert Kauffman M.D., Ph.D., Vertex Pharmaceuticals Incorporated
ClinicalTrials.gov Identifier: NCT00420784     History of Changes
Other Study ID Numbers: VX06-950-106
Study First Received: January 8, 2007
Results First Received: June 22, 2011
Last Updated: June 22, 2011
Health Authority: United States: Food and Drug Administration
Germany: Federal Institute for Drugs and Medical Devices
Canada: Health Canada
Netherlands: The Central Committee on Research Involving Human Subjects (CCMO)

Keywords provided by Vertex Pharmaceuticals Incorporated:
Genotype 1

Additional relevant MeSH terms:
Hepatitis
Hepatitis A
Hepatitis C
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Flaviviridae Infections
Interferon-alpha
Interferon Alfa-2a
Interferons
Ribavirin
Peginterferon alfa-2a
Antiviral Agents
Anti-Infective Agents
Therapeutic Uses
Pharmacologic Actions
Immunologic Factors
Physiological Effects of Drugs
Angiogenesis Inhibitors
Angiogenesis Modulating Agents
Growth Substances
Growth Inhibitors
Antineoplastic Agents
Antimetabolites
Molecular Mechanisms of Pharmacological Action

ClinicalTrials.gov processed this record on April 21, 2014