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CompletedNCT01726946Updated Apr 16, 2015

A Phase 2 Study to Evaluate the Safety and Efficacy of VX-135 With Ribavirin in Treatment-Naïve Subjects With Chronic Hepatitis C

A Phase 2 interventional study of VX-135 and ribavirin in Chronic Hepatitis C, sponsored by Vertex Pharmaceuticals Incorporated. Completed at 6 sites in United States. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2015-04-16.

Sponsored by Vertex Pharmaceuticals Incorporated · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
10
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

A Phase 2 study to evaluate the safety and efficacy of two different once daily doses VX-135 in combination with ribavirin in treatment-naïve subjects with chronic hepatitis C

02

Conditions studied

  • Chronic Hepatitis C

Keywords

  • Chronic Hepatitis C
  • HCV
  • CHC
03

In context

Hepatitis A

2,709 studies on the registry are indexed under Hepatitis A; 142 are open to participants now.

This study's enrollment of 10 is below the median of 100 across 1,886 interventional studies indexed under Hepatitis A.

Browse Hepatitis A studies →

Lead sponsor

Vertex Pharmaceuticals Incorporated is the lead sponsor of 243 studies on the registry; 19 are open to participants now.

Of its 102 completed or terminated interventional studies of FDA-regulated products, 49 (48%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  • Subjects (male and female) must be between the ages of 18 and 60 years at screening
  • Subjects must have genotype 1 Chronic Hepatitis C
  • Subjects must be treatment naïve
  • Subjects must have laboratory values at screening within limits as specified by the protocol

Key Exclusion Criteria:

  • Evidence of cirrhosis
  • Female subjects who are pregnant or nursing or male subjects with a female partner of childbearing potential who is unwilling to adhere to the contraception requirements, is pregnant or nursing, or planning to become pregnant during the study
  • Any other cause of significant liver disease in addition to hepatitis C
  • Human immunodeficiency virus -1 or -2
  • Diagnosis of or suspected hepatocellular carcinoma
  • History of organ transplant, with the exception of corneal transplants and skin grafts
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    VX-135 High Dose with ribavirin

    12 weeks of a high dose of VX-135 in combination with ribavirin

    Drug: VX-135 · Drug: ribavirin

  • Experimental
    VX-135 Low Dose with ribavirin

    12 weeks of a low dose of VX-135 in combination with ribavirin

    Drug: VX-135 · Drug: ribavirin

Interventions

  • DrugVX-135

    12 weeks of VX-135

  • Drugribavirin

    12 weeks of ribavirin

06

What researchers measure

Primary outcomes

  1. The safety and tolerability as assessed by adverse events, vital signs, 12-lead electrocardiograms, echocardiograms (Cohorts 1 and 2 only), and laboratory assessments

    Time frame: Up to 52 weeks

Secondary outcomes

  1. The proportion of subjects who have an SVR at 4 weeks after the last planned dose of treatment (SVR4)

    Time frame: 16 weeks

  2. The proportion of subjects who have an SVR at 12 weeks after the last planned dose of treatment (SVR12)

    Time frame: 24 weeks

  3. The proportion of subjects who have an SVR at 24 weeks after the last planned dose of treatment (SVR24)

    Time frame: 36 weeks

  4. The proportion of subjects who have virologic relapse

    Time frame: Up to 52 weeks

  5. Viral kinetics, as determined at different time points by the proportion of subjects who achieve: -Undetectable HCV RNA -<LLOQ HCV RNA

    Time frame: Up to 64 weeks

  6. The proportion of subjects who have virologic breakthrough

    as measured by on-treatment HCV RNA values

    Time frame: Up to 52 weeks

  7. The proportion of subjects who achieve SVR12 by IL-28B genotype (CC versus non-CC)

    Time frame: up to 28 weeks

  8. The amino acid sequence of the nonstructural (NS)5B protein in subjects who fail treatment

    Time frame: Up to 60 weeks

07

Study locations

6 sites
  • California
    La Jolla, California, United States
  • Florida
    Orlando, Florida, United States
  • Georgia
    Marietta, Georgia, United States
  • Tennessee
    Germantown, Tennessee, United States
  • Texas
    Arlington, Texas, United States
  • Texas
    Houston, Texas, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 16, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01726946
Lead sponsor
Vertex Pharmaceuticals Incorporated
Responsible party
Sponsor
First posted
Nov 15, 2012
Start date
Nov 2012
Primary completion
Feb 2014
Completion
Feb 2014
Last update
Apr 16, 2015

Study contacts

Medical Monitor
study director · Vertex Pharmaceuticals Incorporated
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2015. You cannot join it, but the record below documents what was studied.

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