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ClinicalTrials.gov public records Last synced Oct 7, 2026, 2:50 PM EDT

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Showing 25–48 of 50 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: pegylated interferon (Peg-IFN) alfa-2a Clear all
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 7, 2026, 2:50 PM EDT
Completed Not applicable Interventional

Directly Observed Hepatitis C Treatment in Methadone Clinics

NCT01442311
View directory record Official record
Conditions
Hepatitis C, Medication Adherence
Interventions
enhanced DOT (both pegylated interferon alfa-2a and ribavirin), standard DOT (PEG-DOT control arm)
Other
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jun 26, 2015 · Synced Oct 7, 2026, 2:50 PM EDT
Completed Phase 2 Interventional Results available

Study in Genotype 2 or 3 Patients With Chronic Hepatitis Virus Infection

NCT01257204
View directory record Official record
Conditions
Hepatitis C Virus
Interventions
Placebo, Daclatasvir, Pegylated interferon alfa-2a, Ribavirin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 70 Years
Enrollment
196 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
4
States / cities
Los Angeles, California • Baltimore, Maryland • Tulsa, Oklahoma + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 14, 2015 · Synced Oct 7, 2026, 2:50 PM EDT
Completed Phase 3 Interventional

Study of the Efficacy and Safety of Lonafarnib / Ritonavir With and Without Pegylated Interferon -Alfa-2a

NCT03719313
View directory record Official record
Conditions
Hepatitis Delta Virus
Interventions
Lonafarnib, Ritonavir, PEG IFN-alfa-2a, Placebo Lonafarnib, Placebo Ritonavir
Drug
Lead sponsor
Eiger BioPharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
407 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
18
States / cities
Fresno, California • Los Angeles, California • Palo Alto, California + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2023 · Synced Oct 7, 2026, 2:50 PM EDT
Completed Phase 3 Interventional Results available

A Study of PEGASYS (Pegylated-interferon Alfa-2a) With or Without Ribavirin in Patients With Chronic Hepatitis C Who Have Participated in Previous Roche or Roche Partner Protocols

NCT00800735
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Pegylated-interferon alfa-2a, Ribavirin
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
11
States / cities
Sacramento, California • San Francisco, California • Lutherville, Maryland + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 30, 2013 · Synced Oct 7, 2026, 2:50 PM 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 7, 2026, 2:50 PM EDT
Completed Phase 2 Interventional Results available

Open-Label Study of AB-729, Nucleos(t)Ide Analogue and Pegylated Interferon Alfa-2a in Subjects With Chronic Hepatitis B Infection

NCT04980482
View directory record Official record
Conditions
Chronic Hepatitis b
Interventions
AB-729, Peg-IFNα-2a
Drug
Lead sponsor
Arbutus Biopharma Corporation
Industry
Eligibility
18 Years to 60 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
6
States / cities
Chandler, Arizona • Tucson, Arizona • San Diego, California + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 7, 2026, 2:50 PM EDT
Completed Phase 3 Interventional Results available

A Safety and Effectiveness Study of Telaprevir in Chronic, Genotype 1, Hepatitis C Patients That Failed Previous Standard Treatment

NCT00703118
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Telaprevir, Peg-IFN-alfa-2a, Ribavirin, Placebo
Drug
Lead sponsor
Tibotec BVBA
Industry
Eligibility
18 Years to 70 Years
Enrollment
663 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
31
States / cities
Birmingham, Alabama • Coronado, California • La Jolla, California + 28 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2014 · Synced Oct 7, 2026, 2:50 PM 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 7, 2026, 2:50 PM EDT
Terminated Phase 2 Interventional

Romiplostim in Treating Hepatitis C-Infected Patients With Thrombocytopenia

NCT01153919
View directory record Official record
Conditions
Hepatitis C Infection, Thrombocytopenia
Interventions
romiplostim, ribavirin, placebo, PEG-interferon alfa-2a, laboratory biomarker analysis
Biological · Drug · Other
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Oct 7, 2026, 2:50 PM EDT
Terminated Phase 3 Interventional Results available

Alisporivir (Deb025) and Boceprevir Triple Therapies in African American Participants Not Previously Treated for Chronic Hepatitis C Genotype 1

NCT01446250
View directory record Official record
Conditions
Hepatitis C
Interventions
Alisporivir, Boceprevir, Peginterferon alfa-2a, Ribavirin
Drug
Lead sponsor
Debiopharm International SA
Industry
Eligibility
18 Years to 70 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
2
States / cities
Beverly Hills, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 16, 2017 · Synced Oct 7, 2026, 2:50 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Study of Daclatasvir (BMS-790052) Plus Pegylated Interferon-Alfa 2a and Ribavirin in Patients Coinfected With Untreated Hepatitis C Virus and HIV Virus

NCT01471574
View directory record Official record
Conditions
Hepatitis C, Genotype 1
Interventions
Daclatasvir, Ribavirin, PEG-Interferon alfa 2a
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 70 Years
Enrollment
549 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
23
States / cities
Birmingham, Alabama • La Jolla, California • Los Angeles, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2016 · Synced Oct 7, 2026, 2:50 PM EDT
Completed No phase listed Observational

Brain Deficits in HIV/HCV Coinfected People Before and After Anti-HCV Therapy

NCT00747539
View directory record Official record
Conditions
HIV, Hepatitis C, Infections
Interventions
Pegylated interferon alfa and ribavirin (PEG-IFN/RBV)
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
4
States / cities
Lancaster, California • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 13, 2016 · Synced Oct 7, 2026, 2:50 PM EDT
Completed Phase 2 Interventional Results available

Capecitabine or 5-FU With Pegylated Interferon Alpha-2b in Unresectable/Metastatic Cutaneous Squamous Cell Carcinoma

NCT02218164
View directory record Official record
Conditions
Squamous Cell Carcinoma of Skin, Carcinoma, Squamous Cell
Interventions
Pegylated Interferon alpha-2b, Capecitabine, 5-FU
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Oct 7, 2022 · Synced Oct 7, 2026, 2:50 PM EDT
Completed Phase 3 Interventional Results available

Phase 3 Study of Sofosbuvir and Ribavirin

NCT01497366
View directory record Official record
Conditions
Hepatitis C
Interventions
Sofosbuvir, PEG, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
527 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
67
States / cities
Birmingham, Alabama • Montgomery, Alabama • Bakersfield, California + 55 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2014 · Synced Oct 7, 2026, 2:50 PM EDT
Terminated Phase 2 Interventional Results available

An Open Label Study of the Effect of Telaprevir in Combination With Ribavirin and Peginterferon on HCV Infection in Stable Liver Transplant Patients

NCT01467505
View directory record Official record
Conditions
Hepatitis C
Interventions
Telaprevir, Ribavirin, Pegylated Interferon Alfa-2a, Immunosuppressant Regimen
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 65 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
20
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2015 · Synced Oct 7, 2026, 2:50 PM 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 7, 2026, 2:50 PM EDT
Completed Phase 3 Interventional Results available

Sofosbuvir With Peginterferon Alfa 2a and Ribavirin for 12 Weeks in Treatment-Naive Subjects With Chronic Genotype 1, 4, 5, or 6 HCV Infection

NCT01641640
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
Sofosbuvir, RBV, PEG
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
328 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
55
States / cities
Birmingham, Alabama • Coronado, California • Los Angeles, California + 43 more
Source: ClinicalTrials.gov public record
Updated May 8, 2014 · Synced Oct 7, 2026, 2:50 PM EDT
Withdrawn Phase 1 Interventional

Cemiplimab/Peg-Interferon-α in Advanced CSCC

NCT05729139
View directory record Official record
Conditions
Cutaneous Squamous Cell Carcinoma, Squamous Cell Carcinoma, Advanced Squamous Cell Carcinoma
Interventions
Cemiplimab-Rwlc, PEG-IFN alfa-2a
Drug
Lead sponsor
Baptist Health South Florida
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 9, 2023 · Synced Oct 7, 2026, 2:50 PM 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 7, 2026, 2:50 PM EDT
Completed Phase 2 Interventional Results available

Antiviral Activity of Peg-IFN-Alpha-2A in Chronic HIV-1 Infection

NCT00594880
View directory record Official record
Conditions
HIV Infections
Interventions
Pegylated Interferon-alpha 2a, 180 mcg/week sc, Pegylated Interferon-alpha 2a, 90 mcg/week sc
Drug
Lead sponsor
The Wistar Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
5
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 10, 2015 · Synced Oct 7, 2026, 2:50 PM EDT
Completed Phase 3 Interventional Results available

Phase III BMS-790052 Add-On to Peg-Interferon Alfa-2a and Ribavirin in Naive Hepatitis C

NCT01448044
View directory record Official record
Conditions
Hepatitis C
Interventions
BMS-790052 (NS5A Replication Complex Inhibitor), Placebo matching BMS-790052, Pegylated-interferon alfa 2a, Ribavirin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
4
States / cities
San Clemente, California • Worcester, Massachusetts • Providence, Rhode Island + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2015 · Synced Oct 7, 2026, 2:50 PM EDT
Terminated Phase 4 Interventional Results available

Telaprevir, Peg-IFN-alfa-2a, and RBV in Treatment-Experienced Black/African American and Non-Black/African American Subjects With Genotype 1 Chronic Hepatitis C

NCT01467492
View directory record Official record
Conditions
Hepatitis C
Interventions
Telaprevir, Ribavirin, Pegylated Interferon Alfa-2a
Drug · Biological
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 70 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
27
States / cities
Birmingham, Alabama • San Francisco, California • New Haven, Connecticut + 24 more
Source: ClinicalTrials.gov public record
Updated Aug 3, 2015 · Synced Oct 7, 2026, 2:50 PM 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 7, 2026, 2:50 PM EDT