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Showing 1–24 of 199 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: peginterferon alfa-2a 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 16, 2015 · Synced Sep 22, 2026, 4:32 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 4, 2014 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional Results available

Pegylated Interferon Alfa-2a Maintenance Therapy and Liver Disease Progression in People Infected With Both HIV and Hepatitis C Virus (HCV)

NCT00078403
View directory record Official record
Conditions
HIV Infections, Hepatitis C, Liver Disease
Interventions
Peginterferon alfa-2a, Ribavirin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
36
States / cities
Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 23 more
Source: ClinicalTrials.gov public record
Updated Nov 7, 2021 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional Results available

Study of the Anti-HCV Drug (BMS-790052) Combined With Peginterferon and Ribavirin in Patients Who Failed Prior Treatment

NCT01170962
View directory record Official record
Conditions
Hepatitis C Virus
Interventions
BMS-790052, Placebo, peginterferon alfa-2a, ribavirin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 70 Years
Enrollment
512 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
35
States / cities
Montgomery, Alabama • La Jolla, California • Los Angeles, California + 28 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2015 · Synced Sep 22, 2026, 4:32 AM 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 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional Results available

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

NCT00987337
View directory record Official record
Conditions
Hepatitis, Hepatitis C
Interventions
Filibuvir, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
288 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
30
States / cities
Anaheim, California • Coronado, California • La Jolla, California + 22 more
Source: ClinicalTrials.gov public record
Updated Jan 26, 2014 · Synced Sep 22, 2026, 4:32 AM 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 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional

Safety, Tolerability, and Antiviral Activity of 24 or 48 Weeks of GS-9190 in Combination With Peginterferon Alfa 2a and Ribavirin for the Treatment of Genotype-1 Chronic HCV Infection

NCT00743795
View directory record Official record
Conditions
HCV Infection
Interventions
placebo, GS-9190, Peginterferon Alfa 2a, Ribavirin
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 70 Years
Enrollment
252 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
48
States / cities
Anaheim, California • Los Angeles, California • Newport Beach, California + 37 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2013 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional Results available

Study of SCY-635, Pegasys and Copegus in Hepatitis C

NCT01265511
View directory record Official record
Conditions
Hepatitis C Infection
Interventions
Placebo, SCY-635, Pegasys, Copegus
Drug
Lead sponsor
Scynexis, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
3
States / cities
San Francisco, California • Durham, North Carolina • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 17, 2017 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 3 Interventional Results available

Study Comparing Daclatasvir (BMS-790052) With Telaprevir Combined With Peginterferon Alfa-2a and Ribavirin in Patients With Chronic Hepatitis C Virus Infection

NCT01492426
View directory record Official record
Conditions
Hepatitis C
Interventions
Daclatasvir, Telaprevir, Peginterferon alfa-2a, Ribavirin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
605 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
25
States / cities
Birmingham, Alabama • Phoenix, Arizona • Long Beach, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2016 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional Results available

Dose Ranging of GSK2336805 in Combination Therapy

NCT01648140
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
GSK2336805 40 mg, GSK2336805 60 mg, Pegylated interferon alpha-2a, Ribavirin, Telaprevir
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 70 Years
Enrollment
286 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
18
States / cities
Dothan, Alabama • Anaheim, California • Los Angeles, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2017 · Synced Sep 22, 2026, 4:32 AM EDT
Not listed Phase 1Phase 2 Interventional

Gefitinib and PEG-Interferon Alfa-2a in Treating Patients With Unresectable or Metastatic Skin Cancer

NCT00423397
View directory record Official record
Conditions
Non-melanomatous Skin Cancer
Interventions
PEG-interferon alfa-2a, gefitinib
Biological · Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2006
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Dec 18, 2013 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 3 Interventional

Study of Viramidine to Ribavirin in Patients With Chronic Hepatitis C Who Are Treatment Naive

NCT00093093
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
Viramidine, Ribavirin, pegylated interferon alfa-2a
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
53
States / cities
Tucson, Arizona • Fresno, California • Los Angeles, California + 42 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2012 · Synced Sep 22, 2026, 4:32 AM EDT
Withdrawn Phase 2 Interventional

Hepatitis B Immune Globulin (HBIg) to Restore Immune Control in People With Chronic Hepatitis B

NCT03575208
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
hepatitis B immune globulin (HBIg), Pegylated interferon alfa (pegIFN)
Biological · Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional Results available

A Dose Ranging Study Of PF-00868554 In Combination With PEGASYS And COPEGUS In Patients With Chronic Hepatitis C Genotype 1 Infection

NCT00720434
View directory record Official record
Conditions
Hepatitis C
Interventions
PF-00868554, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
9
States / cities
La Jolla, California • San Francisco, California • Orlando, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2013 · Synced Sep 22, 2026, 4:32 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety, Tolerability, Drug Levels, Food, Formulation, and pH Effects on Relative Absorption of BMS-986465 and Its Active Derivative BMS-986464 in Healthy Participants

NCT06144697
View directory record Official record
Conditions
Healthy Participants
Interventions
BMS-986465, Placebo, Pegasys, Famotidine
Drug · Other
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 55 Years
Enrollment
267 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
2
States / cities
Anaheim, California • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2025 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 4 Interventional Results available

REPEAT Study - A Study of PEGASYS (Peginterferon Alfa-2a (40KD)) Therapy in Combination With COPEGUS (Ribavirin) in Patients With Chronic Hepatitis C (CHC) Who Did Not Respond to Previous PegIntron (Peginterferon Alfa-2b (12KD))/Ribavirin Combination Therapy

NCT00087646
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Ribavirin, peginterferon alfa-2a [Pegasys]
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
948 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
36
States / cities
Mobile, Alabama • Scottsdale, Arizona • Los Angeles, California + 30 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2016 · Synced Sep 22, 2026, 4:32 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 16, 2014 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 4 Interventional Results available

Peak Study - A Study of Pegasys (Peginterferon Alfa-2a (40KD)) in Combination With Copegus (Ribavirin) in Interferon-Naive Patients With Chronic Hepatitis C (CHC).

NCT00087607
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Ribavirin, Peginterferon alfa-2b (PEG-Intron), Peginterferon alfa-2a [Pegasys]
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
385 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
41
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Sacramento, California + 36 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2016 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 3 Interventional

Thymosin Plus PEG-Interferon in Non-Cirrhotic Hepatitis C Patients Who Did Not Respond to Interferon or Interferon Plus Ribavirin

NCT00040027
View directory record Official record
Conditions
Hepatitis C, Hepatitis C, Chronic
Interventions
thymalfasin (thymosin alpha 1) + PEGinterferon alfa-2a, placebo + PEGinterferon alfa-2a
Drug
Lead sponsor
SciClone Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
46
States / cities
Mobile, Alabama • Scottsdale, Arizona • Berkeley, California + 36 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2008 · Synced Sep 22, 2026, 4:32 AM 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 21, 2014 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional Results available

A Rollover Study for Subjects Participating in the Control Arm of Study VX06-950-106, VX05-950-104 and VX05-950-104EU Whose Plasma Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) Levels Did Not Respond to Therapy

NCT00535847
View directory record Official record
Conditions
Hepatitis C
Interventions
Telaprevir, Ribavirin, Pegylated interferon alfa 2a
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 70 Years
Enrollment
117 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
39
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 35 more
Source: ClinicalTrials.gov public record
Updated Aug 4, 2014 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 3 Interventional Results available

A Study to Assess the Safety, Tolerability and Efficacy of TMC435 Along With Pegylated Interferon Alpha-2a (Pegasys) and Ribavirin (Copegus) Triple Therapy in Chronic Hepatitis C Genotype-1 Infected Patients Co-infected With Human Immunodeficiency Virus-Type 1

NCT01479868
View directory record Official record
Conditions
Hepatitis C Virus Genotype-1
Interventions
TMC435, Pegylated interferon alpha-2a, Ribavirin
Drug
Lead sponsor
Janssen R&D Ireland
Industry
Eligibility
18 Years to 70 Years
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
10
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Orlando, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2014 · Synced Sep 22, 2026, 4:32 AM EDT
Completed Phase 2 Interventional

Evaluating the Safety of Two Medications to Treat Hepatitis C in People With Thalassemia (The HepC Study)

NCT00502788
View directory record Official record
Conditions
Hepatitis C, Thalassemia
Interventions
Peginterferon Alfa-2a and Ribavirin, Ribavirin
Drug
Lead sponsor
Carelon Research
Other
Eligibility
18 Years to 44 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
3
States / cities
Oakland, California • New York, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 3, 2014 · Synced Sep 22, 2026, 4:32 AM EDT