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ClinicalTrials.gov public records Last synced Oct 11, 2026, 4:45 AM EDT

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Showing 49–72 of 124 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Pegylated interferon and ribavirin Clear all
Terminated Phase 3 Interventional Results available

A Study to Treat Subjects With Telaprevir, Ribavirin, and Peginterferon Who Are Coinfected With HIV and Hepatitis C Virus (HCV)

NCT01467479
View directory record Official record
Conditions
Hepatitis C
Interventions
Telaprevir, Ribavirin, Pegylated Interferon Alfa-2a, Highly Active Antiretroviral Therapy (HAART)
Drug · Biological
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 65 Years
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
46
States / cities
Birmingham, Alabama • Bakersfield, California • Beverly Hills, California + 42 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2015 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 4 Interventional Results available

Impact of Physician Directed Education on Patient Compliance With Hepatitis C Therapy

NCT01405027
View directory record Official record
Conditions
Chronic Hepatitis C, Genotype 1
Interventions
Educational Intervention, Patient education and management skills training
Procedure · Other
Lead sponsor
Chronic Liver Disease Foundation
Other
Eligibility
18 Years and older
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
43
States / cities
Beverly Hills, California • Calabasas, California • Santa Monica, California + 34 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2015 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 2 Interventional

Safety Study of Pegylated Interferon Lambda Plus Single or 2 Direct Antiviral Agents With Ribavirin

NCT01795911
View directory record Official record
Conditions
Hepatitis C
Interventions
Pegylated Interferon Lambda, Ribasphere, Daclatasvir
Biological · Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 70 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 9, 2015 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 2 Interventional Results available

Dose-Ranging Study of Sofosbuvir in Combination With Pegylated Interferon and Ribavirin in Treatment Naïve GT 1 HCV Patients

NCT01054729
View directory record Official record
Conditions
Hepatitis C
Interventions
Sofosbuvir, Placebo, PEG, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
6
States / cities
San Francisco, California • Gainesville, Florida • Orlando, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 17, 2014 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 4 Interventional

Infergen, Ribavirin & Avandia in Previous Relapsers or Nonresponders to Pegylated Interferon and Ribavirin

NCT00207402
View directory record Official record
Conditions
Hepatitis C
Interventions
rosiglitazone
Drug
Lead sponsor
Brooke Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Fort Sam Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 14, 2012 · Synced Oct 11, 2026, 4:45 AM EDT
Terminated Phase 3 Interventional Results available

Alisporivir With PEG and RBV in Protease Inhibitor (PI) Treatment Failure Patients With Chronic Hepatitis C

NCT01500772
View directory record Official record
Conditions
Hepatitis C
Interventions
Alisporivir, Peginterferon alfa-2a, Ribavirin
Drug
Lead sponsor
Debiopharm International SA
Industry
Eligibility
18 Years to 70 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
26
States / cities
Phoenix, Arizona • Bakersfield, California • Los Angeles, California + 19 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2016 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 3 Interventional Results available

VX-950-TiDP24-C219: A Roll Over Trial for Patients in the Control Group of the C216 Study Who Received Telaprevir Placebo

NCT01054573
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Telaprevir, pegylated interferon (Peg-IFN) alfa-2a, ribavirin (RBV)
Drug
Lead sponsor
Janssen Infectious Diseases BVBA
Industry
Eligibility
18 Years to 70 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
14
States / cities
Coronado, California • Los Angeles, California • San Francisco, California + 11 more
Source: ClinicalTrials.gov public record
Updated May 8, 2013 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 1 Interventional Results available

Drug Drug Interaction Study Between BI 201335 and BI 207127 in Chronic Hepatitis C Infected Patients

NCT01525628
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
midazolam, BI 201335, tenofovir, caffeine, tolbutamide, pegylated interferon, BI 207127, ribavirin
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 70 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
5
States / cities
La Mesa, California • Rockville, Maryland • Marlton, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2016 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 4 Interventional Results available

Pegylated Interferon and Ribavirin to Treat Chronic Hepatitis C With and Without Kidney Disease

NCT00028093
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
Peginterferon alfa-2a with Ribavirin, Peginterferon alfa-2a
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 8, 2013 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 4 Interventional

Pegasys and Copegus for Asian Patients With Treatment-naive Hepatitis C Genotypes 6, 7, 8, 9

NCT00575224
View directory record Official record
Conditions
Chronic Hepatitis C, Asian Americans, Novel Genotypes, Treatment
Interventions
Pegylated interferon and ribavirin
Drug
Lead sponsor
Pacific Health Foundation
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
5
States / cities
San Diego, California • San Jose, California • Westminster, California + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 25, 2009 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 3 Interventional Results available

VX-950-C211 - A Dosing Regimen Study (Twice Daily Versus Every 8 Hours) of Telaprevir in Treatment-naïve Participants With Genotype 1 Chronic Hepatitis C Virus Infection

NCT01241760
View directory record Official record
Conditions
Genotype 1 Chronic Hepatitis C, Treatment Naive
Interventions
Ribavirin, Telaprevir, Pegylated interferon alfa-2a
Drug
Lead sponsor
Janssen Infectious Diseases BVBA
Industry
Eligibility
18 Years to 70 Years
Enrollment
744 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
37
States / cities
La Jolla, California • Los Angeles, California • San Diego, California + 34 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2014 · Synced Oct 11, 2026, 4:45 AM EDT
Withdrawn Phase 3 Interventional

Safety and Efficacy Study of Pegylated Interferon Lambda Versus Pegylated Interferon Alfa, Plus Ribavirin in Subjects With Hepatitis C

NCT01447394
View directory record Official record
Conditions
Hepatitis C Virus (HCV)
Interventions
Pegylated Interferon Lambda, Pegylated Interferon Alfa-2a, Ribavirin
Biological · Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
3
States / cities
San Diego, California • Rochester, New York • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2012 · Synced Oct 11, 2026, 4:45 AM EDT
Terminated Phase 2 Interventional

GS-5885, GS-9451 With Peginterferon Alfa 2a (PEG) and Ribavirin in Treatment-Naïve Subjects With Chronic Genotype 1 Hep C Virus Infection and IL28B CC Genotype

NCT01384383
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
GS-5885, GS-9451, RBV, PEG
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 70 Years
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
26
States / cities
Los Angeles, California • Sacramento, California • San Diego, California + 20 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2014 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 3 Interventional

Safety and Efficacy Study of Pegylated Interferon Lambda With and Without Daclatasvir, Compared to Pegylated Interferon Alfa, Plus Ribavirin in Subjects With Hepatitis C Genotype 2 and 3

NCT01616524
View directory record Official record
Conditions
Hepatitis C Virus (HCV)
Interventions
Pegylated interferon lambda (pegIFNλ), Pegylated interferon alfa-2a (pegIFNα-2a), Ribavirin, Daclatasvir, Placebo matching Daclatasvir
Biological · Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
880 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
18
States / cities
Phoenix, Arizona • San Diego, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2015 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 2 Interventional Results available

A Randomized Study to Evaluate the Safety, Tolerability and Antiviral Activity of ABT-450, ABT-333 and ABT-072

NCT01074008
View directory record Official record
Conditions
Hepatitis C, HCV, Chronic Hepatitis C Infection, Hepatitis C Genotype 1
Interventions
ABT-450, ABT-072, ABT-333, Ritonavir, Peginterferon alpha-2a, Ribavirin, Placebo
Drug · Other
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
18 Years to 65 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
25
States / cities
Phoenix, Arizona • Anaheim, California • La Jolla, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2015 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 2 Interventional Results available

A Study of Telaprevir (VX-950), Pegasys and Copegus in Hepatitis C (PROVE3)

NCT00420784
View directory record Official record
Conditions
Hepatitis C
Interventions
Telaprevir, Ribavirin, Pegylated Interferon Alfa 2a, Matching Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 70 Years
Enrollment
465 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
41
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 35 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2014 · Synced Oct 11, 2026, 4:45 AM EDT
Terminated Phase 1 Interventional

Safety Study of Low Dose Interleukin 2 (IL-2) Plus PEG-IFN/RBV In Chronic Hepatitis C Virus Genotype I

NCT00277758
View directory record Official record
Conditions
Hepatitis C
Interventions
Interleukin 2, Ribavirin, Pegylated Interferon Alpha, Inteleukin-2, Ribavirin + Pegylated interferon-alpha
Biological · Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 7, 2008 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 2 Interventional

A Study of Mericitabine in Combination With Telaprevir and Peginterferon Alfa-2a / Ribavirin in Participants With Chronic Hepatitis C

NCT01482390
View directory record Official record
Conditions
Hepatitis C
Interventions
Ribavirin, Mericitabine, Peginterferon Alfa-2a, Placebo, Telaprevir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
15
States / cities
Birmingham, Alabama • Long Beach, California • Sacramento, California + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2017 · Synced Oct 11, 2026, 4:45 AM EDT
Terminated Early Phase 1 Interventional

Pilot Study of Betaine + Combination Antiviral Therapy for Chronic Hepatitis C Genotype 1 Non-responder/Relapsers

NCT00882193
View directory record Official record
Conditions
Chronic Hepatitis C, Genotype 1, Relapse
Interventions
Betaine, Peginterferon alpha 2a, Ribavirin
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Nov 30, 2023 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 3 Interventional Results available

A Phase 3 Study of Telaprevir in Combination With Pegasys® and Copegus® in Treatment-Naive Subjects With Genotype 1 Hepatitis C Virus (HCV)

NCT00627926
View directory record Official record
Conditions
Hepatitis C
Interventions
Pegylated Interferon Alfa 2a, Telaprevir, Ribavirin, Placebo
Biological · Drug · Other
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 70 Years
Enrollment
1,095 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
65
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fresno, California + 48 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2014 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 2 Interventional Results available

Peginterferon Alpha-2a and Ribavirin to Treat Hepatitis C in HIV-infected Patients

NCT00085917
View directory record Official record
Conditions
Hepatitis C, HIV Infections
Interventions
Double dose pegylated interferon with weight based Ribavirin, standard dose pegylated interferon alfa -2a and ribavirin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 27, 2011 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 2 Interventional Results available

Antiviral Effect, Safety, and Pharmacokinetics of BI201335 +PegIFN/RBV in HCV-GT1 (SILEN-C1&2)

NCT00774397
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
BI 201335 NA 240 mg QD / LI, PegIFN/RBV, BI 201335 NA 120mg QD / LI, BI 201335 NA 240 mg QD, BI 201335 NA 240 mg BID, Placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 65 Years
Enrollment
719 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
10
States / cities
San Francisco, California • Chicago, Illinois • Lutherville, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2015 · Synced Oct 11, 2026, 4:45 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of ABT-450 With Ritonavir (ABT-450/r) When Given Together With ABT-333 and Ribavirin (RBV) in Treatment-Naïve and Non-responder Subjects With Genotype 1 Chronic Hepatitis C Virus (HCV) Infection

NCT01306617
View directory record Official record
Conditions
Chronic Hepatitis C Infection, Hepatitis C, Hepatitis C Virus
Interventions
ABT-450, ABT-333, ribavirin, ritonavir
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
11
States / cities
Los Angeles, California • Aurora, Colorado • Gainesville, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2015 · Synced Oct 11, 2026, 4:45 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy of a 12-Week Regimen of Telaprevir, Pegylated Interferon, and Ribavirin in Treatment-Naive and Prior Relapser Subjects With Interleukin28B (IL28B) CC Genotype

NCT01459913
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Telaprevir, Pegylated Interferon Alfa-2a, Ribavirin
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 70 Years
Enrollment
239 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
55
States / cities
Birmingham, Alabama • Phoenix, Arizona • La Jolla, California + 42 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2015 · Synced Oct 11, 2026, 4:45 AM EDT