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ClinicalTrials.gov public records Last synced Oct 2, 2026, 2:42 PM EDT

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Showing 1–24 of 50 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: pegylated interferon (Peg-IFN) alfa-2a Clear all
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 2, 2026, 2:42 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 2, 2026, 2:42 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 24, 2020 · Synced Oct 2, 2026, 2:42 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 2, 2026, 2:42 PM 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 2, 2026, 2:42 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 7, 2009 · Synced Oct 2, 2026, 2:42 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 11, 2024 · Synced Oct 2, 2026, 2:42 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 2, 2026, 2:42 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 2, 2026, 2:42 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 2, 2026, 2:42 PM EDT
Completed Phase 4 Interventional Results available

Treatment of Acute Hepatitis C Virus in HIV Co-Infection

NCT00845676
View directory record Official record
Conditions
Hepatitis C, Human Immunodeficiency Virus, HIV Infections
Interventions
Pegylated interferon alfa-2a + Ribavirin
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 18, 2020 · Synced Oct 2, 2026, 2:42 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 2, 2026, 2:42 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 2, 2026, 2:42 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 2, 2026, 2:42 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 2, 2026, 2:42 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 4, 2021 · Synced Oct 2, 2026, 2:42 PM EDT
Terminated Phase 2 Interventional

Capecitabine and Pegylated Interferon Alfa-2a in Treating Patients With Recurrent or Progressive Brain Metastases Due to Breast Cancer

NCT00227656
View directory record Official record
Conditions
Breast Cancer, Metastatic Cancer
Interventions
PEG-interferon alfa-2a, Capecitabine
Biological · Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
4
States / cities
Wichita, Kansas • Grand Rapids, Michigan • Springfield, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2012 · Synced Oct 2, 2026, 2:42 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 2, 2026, 2:42 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 2, 2026, 2:42 PM EDT
Completed Phase 2 Interventional Results available

Study of CTS-1027 in Combination With Pegylated Interferon and Ribavirin in Hepatitis C Virus (HCV) Null-Responders

NCT01051921
View directory record Official record
Conditions
Hepatitis C
Interventions
CTS-1027, Pegylated interferon, Ribavirin
Drug
Lead sponsor
Conatus Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
14
States / cities
La Jolla, California • San Diego, California • Denver, Colorado + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2012 · Synced Oct 2, 2026, 2:42 PM 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 5, 2014 · Synced Oct 2, 2026, 2:42 PM EDT
Terminated Phase 2 Interventional

Chronically-infected HCV Genotype 2 and 3 Treatment-naive Subjects: Part A: Safety and Efficacy of INX-08189 With Peg IFN Alfa-2a and Ribavirin. Part B: INX-08189 in Interferon Free Treatment With Daclatasvir and/or Ribavirin

NCT01425970
View directory record Official record
Conditions
Hepatitis C
Interventions
INX-08189, Placebo matching with INX-08189, Pegylated interferon alfa-2a, Ribavirin, Daclatasvir
Drug · Biological
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 65 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
6
States / cities
Anaheim, California • La Jolla, California • San Francisco, California + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2015 · Synced Oct 2, 2026, 2:42 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 2, 2026, 2:42 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 2, 2026, 2:42 PM EDT