Filibuvir In Treatment Naive Hepatitis C Virus (HCV) Genotype 1 Subjects

NCT ID: NCT00987337

Last Updated: 2014-01-27

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

288 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-11-30

Study Completion Date

2012-01-31

Brief Summary

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The primary objective for this study is to determine if the addition of filibuvir to a standard regimen of peginterferon/ribavirin (pegIFN/RBV) significantly increases the proportion of subjects who achieve a sustained viral response (SVR) compared to peginterferon/ribavirin (pegIFN/RBV) therapy alone.

Detailed Description

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Conditions

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Hepatitis Hepatitis C

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Arm A

Filibuvir 300 mg BID + pegIFN/RBV x 24 weeks (subjects with undetectable HCV RNA at week 4)

\- or - Filibuvir 300 mg BID + pegIFN/RBV x 24 weeks followed by pegIFN/RBV x 24 weeks (subjects with detectable HCV RNA at week 4)

Group Type EXPERIMENTAL

Filibuvir

Intervention Type DRUG

300 mg BID

Arm B

Filibuvir 600 mg BID + pegIFN/RBV x 24 weeks (subjects with undetectable HCV RNA at week 4)

\- or - Filibuvir 600 mg BID + pegIFN/RBV x 24 weeks followed by pegIFN/RBV x 24 weeks (subjects with detectable HCV RNA at week 4)

Group Type EXPERIMENTAL

Filibuvir

Intervention Type DRUG

600 mg BID

Arm C

Placebo + pegIFN/RBV x 24 weeks followed by pegIFN/RBV x 24 weeks

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

BID

Interventions

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Filibuvir

300 mg BID

Intervention Type DRUG

Filibuvir

600 mg BID

Intervention Type DRUG

Placebo

BID

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Male or female subjects at least 18 years of age.
* HCV seropositive.
* HCV RNA \>10,000 IU/mL at screening.
* HCV Genotype 1. Subjects infected with a non-genotype 1 strain or mixed genotypes are not eligible.
* Treatment naïve (no prior treatment with IFN alfa +/ RBV regimens or investigational anti-HCV agents).
* Liver biopsy within two years (24 months) of Screening with non-cirrhotic fibrosis classification. For those subjects with liver biopsy outside of the time window or for those subjects with no history of liver biopsy, a biopsy must be performed prior to randomization.
* Ultrasound within 6 months of Screening for 1) those subjects with bridging fibrosis or 2) those subjects with AFP \>50 and \<100 ng/mL with no evidence of hepatocellular carcinoma. For those subjects with an ultrasound conducted outside the 6-month time window, an ultrasound must be performed prior to randomization.

Exclusion Criteria

* Co-infection with either HIV or HBV.
* Evidence of severe or decompensated liver disease.
* Subjects with liver disease unrelated to HCV infection.
* Pre-existing medical condition that makes the subject unsuitable for treatment with pegIFN/RBV therapy per product labeling.
* Laboratory abnormality at Screening that makes the subject unsuitable for treatment with pegIFN/RBV therapy per product labeling.
* Abnormal ECG suggestive of clinically significant cardiac disease or QTc\>450msec.
* History of organ transplant.
* Contraindicated medications being taken by the subject at the time of randomization that must be continued during the study period, including potent CYP3A4 inhibitors, sensitive CYP3A4 substrates, CYP3A4 substrates with narrow therapeutic range and CYP3A4 inducers.
* Active alcohol or substance abuse sufficient, in the Investigator's judgment, to prevent adherence to study medication and/or follow up.
* Pregnant or nursing females.
* Males whose female partner is pregnant.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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Pfizer Investigational Site

Anaheim, California, United States

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Anaheim, California, United States

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Coronado, California, United States

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La Jolla, California, United States

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Mather, California, United States

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Sacramento, California, United States

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Sacramento, California, United States

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San Diego, California, United States

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Aurora, Colorado, United States

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Englewood, Colorado, United States

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DeLand, Florida, United States

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Jacksonville, Florida, United States

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Jacksonville, Florida, United States

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Orlando, Florida, United States

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Orlando, Florida, United States

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South Miami, Florida, United States

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Winter Park, Florida, United States

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Chicago, Illinois, United States

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Indianapolis, Indiana, United States

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New Orleans, Louisiana, United States

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Boston, Massachusetts, United States

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New York, New York, United States

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Durham, North Carolina, United States

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Durham, North Carolina, United States

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Philadelphia, Pennsylvania, United States

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Nashville, Tennessee, United States

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Houston, Texas, United States

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San Antonio, Texas, United States

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Salt Lake City, Utah, United States

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Richmond, Virginia, United States

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Brussels, , Belgium

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Brussels, , Belgium

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Edegem, , Belgium

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Ghent, , Belgium

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Haine-Saint-Paul, , Belgium

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Leuven, , Belgium

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Edmonton, Alberta, Canada

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Edmonton, Alberta, Canada

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Edmonton, Alberta, Canada

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Vancouver, British Columbia, Canada

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Vancouver, British Columbia, Canada

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Halifax, Nova Scotia, Canada

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Halifax, Nova Scotia, Canada

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Montreal, Quebec, Canada

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Montreal, Quebec, Canada

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Montreal, Quebec, Canada

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Clichy, , France

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Créteil, , France

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Marseille, , France

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Paris, , France

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Pessac, , France

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Rennes, , France

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Vandœuvre-lès-Nancy, , France

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Berlin, , Germany

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Bonn, , Germany

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Cologne, , Germany

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Düsseldorf, , Germany

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Hamburg, , Germany

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Hamburg, , Germany

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Kiel, , Germany

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Békéscsaba, , Hungary

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Budapest, , Hungary

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Debrecen, , Hungary

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Gyula, , Hungary

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Kaposvár, , Hungary

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Rio Piedras, , Puerto Rico

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Seoul, , South Korea

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Seoul, , South Korea

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Seoul, , South Korea

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Barcelona, Barcelona, Spain

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Barcelona, Barcelona, Spain

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Córdoba, Cordoba, Spain

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Madrid, Madrid, Spain

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Madrid, Madrid, Spain

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Madrid, Madrid, Spain

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Majadahonda, Madrid, Spain

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Seville, Sevilla, Spain

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Countries

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United States Belgium Canada France Germany Hungary Puerto Rico South Korea Spain

References

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Rodriguez-Torres M, Yoshida EM, Marcellin P, Srinivasan S, Purohit VS, Wang C, Hammond JL. A phase 2 study of filibuvir in combination with pegylated IFN alfa and ribavirin for chronic HCV. Ann Hepatol. 2014 Jul-Aug;13(4):364-75.

Reference Type DERIVED
PMID: 24927607 (View on PubMed)

Related Links

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Other Identifiers

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A8121014

Identifier Type: -

Identifier Source: org_study_id

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