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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: PEG-Interferon alfa 2a Clear all
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 2, 2014 · Synced Sep 29, 2026, 2:12 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 13, 2015 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 2 Interventional Results available

Nitazoxanide Plus Ribavirin and Peginterferon for Therapy of Treatment Naive HCV Genotype 1 and HIV Coinfected Subjects

NCT00991289
View directory record Official record
Conditions
HIV Infection, Hepatitis C Infection
Interventions
Nitazoxanide (NTZ), Pegylated interferon alfa-2a (PEG), Ribavirin (RBV)
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
17
States / cities
Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 2 Interventional

A Comparison of the Effectiveness, Safety, and Tolerability of Two Different Hepatitis C Treatments in Patients Infected With Both HIV and Hepatitis C Virus (HCV)

NCT00008463
View directory record Official record
Conditions
HIV Infections, Hepatitis C
Interventions
Ribavirin, Interferon alfa-2a, Peginterferon alfa-2a
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2006
U.S. locations
24
States / cities
San Diego, California • San Francisco, California • Aurora, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 2 Interventional

CIFN and IFN γ-1b With or Without Ribavirin for Treatment of Chronic Hepatitis C (Nonresponders)

NCT00084279
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
Consensus Interferon-Alpha, Interferon Gamma-1b, Ribavirin
Drug
Lead sponsor
InterMune
Industry
Eligibility
18 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Brisbane, California
Source: ClinicalTrials.gov public record
Updated Jul 2, 2009 · Synced Sep 29, 2026, 2:12 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 28, 2026 · Synced Sep 29, 2026, 2:12 PM EDT
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 16, 2015 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 3 Interventional

Efficacy of Albumin Interferon Alfa-2b With Ribavirin Compared to Peg-IFN Alfa-2a With Ribavirin in IFN Naive Patients Geno2/3

NCT00411385
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
albumin interferon alfa-2b, peginterferon alfa-2a, Ribavirin
Drug
Lead sponsor
Human Genome Sciences Inc.
Industry
Eligibility
18 Years and older
Enrollment
933 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
28
States / cities
Phoenix, Arizona • La Jolla, California • San Francisco, California + 20 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2013 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 3 Interventional Results available

A Study of Pegylated Interferon Alfa-2A in Combination With Lamivudine or Entecavir Compared With Untreated Control Group in Children With Hepatitis B Envelope Antigen (HBeAg)-Positive Chronic Hepatitis B (CHB) in the Immune-Tolerant Phase

NCT02263079
View directory record Official record
Conditions
Pediatric Immuno-Tolerant Chronic Hepatitis B
Interventions
Entecavir, Lamivudine, Pegylated Interferon Alfa-2A
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
3 Years to 17 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
3
States / cities
Kansas City, Missouri • New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 23, 2020 · Synced Sep 29, 2026, 2:12 PM 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 7, 2013 · Synced Sep 29, 2026, 2:12 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 11, 2015 · Synced Sep 29, 2026, 2:12 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 25, 2015 · Synced Sep 29, 2026, 2:12 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 7, 2014 · Synced Sep 29, 2026, 2:12 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 28, 2016 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 2 Interventional

Safety and Tolerability of Pegylated Interferon (PEG-IFN) Alfa-2a in HIV Infected People

NCT00078442
View directory record Official record
Conditions
HIV Infections
Interventions
Pegylated interferon alfa-2a
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2006
U.S. locations
3
States / cities
Sacramento, California • Chicago, Illinois • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 6, 2009 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 3 Interventional

Phase III Hallmark QUAD: ASV+DCV+Peg+Rib (Nulls/Partials)

NCT01573351
View directory record Official record
Conditions
Hepatitis C Virus
Interventions
Asunaprevir, Daclatasvir, Peg-interferon Alfa-2a, Ribavirin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
398 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
20
States / cities
Montgomery, Alabama • La Jolla, California • Los Angeles, California + 16 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2015 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 2 Interventional Results available

Sofosbuvir With Pegylated Interferon and Ribavirin Hepatitis C Virus (HCV) Genotypes 1,4,5,6

NCT01329978
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Sofosbuvir, RBV, PEG
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
332 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
44
States / cities
Montgomery, Alabama • Jonesboro, Arkansas • Anaheim, California + 36 more
Source: ClinicalTrials.gov public record
Updated May 25, 2014 · Synced Sep 29, 2026, 2:12 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 1, 2014 · Synced Sep 29, 2026, 2:12 PM EDT
Terminated Phase 4 Interventional Results available

Zidovudine, Interferon Alfa-2b, PEG-Interferon Alfa-2b in Patients With HTLV-I Associated Adult T-Cell Leukemia/Lymphoma

NCT00854581
View directory record Official record
Conditions
Lymphoma, Precancerous/Nonmalignant Condition
Interventions
PEG-interferon alfa-2b, Interferon alfa-2b, Valproic Acid, Zidovudine
Biological · Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 16, 2018 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 1 Interventional

A Study to Assess the Safety and Tolerability of Atezolizumab in Combination With Other Immune-Modulating Therapies in Participants With Locally Advanced or Metastatic Solid Tumors

NCT02174172
View directory record Official record
Conditions
Solid Cancers
Interventions
Atezolizumab, Bevacizumab, Interferon alfa-2b, Ipilimumab, Obinutuzumab, PEG-interferon alfa-2a
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
8
States / cities
Scottsdale, Arizona • Los Angeles, California • New Haven, Connecticut + 3 more
Source: ClinicalTrials.gov public record
Updated May 11, 2020 · Synced Sep 29, 2026, 2:12 PM EDT
Terminated Phase 3 Interventional Results available

Telaprevir Plus Standard of Care (SOC) in HCV Associated Hepatocellular Carcinoma (HCC)

NCT01821963
View directory record Official record
Conditions
Infection
Interventions
Pegylated Interferon Alfa 2a, Ribavirin, Telaprevir
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 69 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 23, 2020 · Synced Sep 29, 2026, 2:12 PM EDT
Completed Phase 2 Interventional Results available

Pegasys® in Patients With Myeloproliferative Diseases

NCT00452023
View directory record Official record
Conditions
Myeloproliferative Disorders
Interventions
IFN-alpha2a
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2024 · Synced Sep 29, 2026, 2:12 PM EDT
Terminated Phase 2 Interventional

PEG-Intron For Chronic Myelogenous Leukemia Patients Unresponsive To Or Intolerant Of Roferon Or Intron

NCT00037882
View directory record Official record
Conditions
Leukemia, Myeloid, Philadelphia-Positive
Interventions
PEG-Intron
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 31, 2018 · Synced Sep 29, 2026, 2:12 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 10, 2017 · Synced Sep 29, 2026, 2:12 PM EDT