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ClinicalTrials.gov public records Last synced Oct 23, 2026, 5:55 AM EDT

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Showing 1–24 of 130 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: IFN-alpha2a Clear all
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 23, 2026, 5:55 AM EDT
Completed Not applicable Interventional

Comparative Effectiveness and Tolerability of Boceprevir vs Telaprevir

NCT02113631
View directory record Official record
Conditions
Hepatitis C, Chronic, Cirrhosis
Interventions
Telaprevir, Boceprevir, Peg-IFN, Ribavirin
Drug
Lead sponsor
Louis Stokes VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 1Phase 2 Interventional

Interferon Alfa in Treating Patients With Advanced Kidney Cancer

NCT00003542
View directory record Official record
Conditions
Kidney Cancer
Interventions
pegylated interferon alfa
Biological
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2004
U.S. locations
2
States / cities
Los Angeles, California • New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 25, 2013 · Synced Oct 23, 2026, 5:55 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 27, 2014 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional Results available

A Study to Assess Intrahepatic and Peripheral Changes of Immunologic and Virologic Markers in Chronic Hepatitis B Virus Infection

NCT04585789
View directory record Official record
Conditions
Hepatitis B
Interventions
JNJ-73763989, JNJ-56136379, Entecavir (ETV), Tenofovir disoproxil, Tenofovir alafenamide (TAF), PegIFN-alpha-2a (Optional)
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Oct 23, 2026, 5:55 AM 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 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional

Study to Evaluate Drug-drug Interaction Between Valopicitabine and Ribavirin

NCT00395421
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
NM283 plus Peg-IFNα-2a
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
114 participants
Timeline
2006 – 2008
U.S. locations
2
States / cities
Atlanta, Georgia • Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 10, 2010 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional Results available

Melphalan, Peripheral Stem Cell Transplantation, and Interleukin-2 Followed by Interferon Alfa in Treating Patients With Advanced Multiple Myeloma

NCT00006244
View directory record Official record
Conditions
Refractory Multiple Myeloma, Stage I Multiple Myeloma, Stage II Multiple Myeloma, Stage III Multiple Myeloma
Interventions
melphalan, recombinant interferon alfa, aldesleukin, in vitro-treated peripheral blood stem cell transplantation
Drug · Biological · Procedure
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 69 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 12, 2017 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 3 Interventional

Phase III Hallmark DUAL: ASV+DCV (Nulls/Partials, Intolerants/Ineligibles. Naives)

NCT01581203
View directory record Official record
Conditions
Hepatitis C Virus
Interventions
Asunaprevir (ASV), Daclatasvir (DCV), Pegylated-interferon alfa 2a (PegIFN), Ribavirin (RBV)
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
748 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
18
States / cities
Montgomery, Alabama • La Jolla, California • Los Angeles, California + 14 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2015 · Synced Oct 23, 2026, 5:55 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 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional Results available

Study of pegInterferon Alfa-2a, Ribavirin, and Daclatasvir (BMS-790052) With or Without BMS-650032 for Participants in Some Hepatitis C Virus Trials

NCT01428063
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
Daclatasvir, Asunaprevir, Pegylated interferon alfa-2a, Ribavirin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
20
States / cities
Montgomery, Alabama • La Jolla, California • Los Angeles, California + 17 more
Source: ClinicalTrials.gov public record
Updated May 27, 2016 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional Results available

Pegylated Interferon to Treat Chronic Hepatitis D

NCT00023322
View directory record Official record
Conditions
Hepatitis D
Interventions
Peginterferon Alpha-2a
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 10, 2013 · Synced Oct 23, 2026, 5:55 AM 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 17, 2015 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional

Combination Chemotherapy Plus Interferon Alfa Followed by Filgrastim in Treating Patients With Gastrointestinal Tract Cancer

NCT00019474
View directory record Official record
Conditions
Extrahepatic Bile Duct Cancer, Gastric Cancer, Gastrointestinal Carcinoid Tumor, Liver Cancer, Pancreatic Cancer, Small Intestine Cancer
Interventions
filgrastim, recombinant interferon alfa, fluorouracil, hydroxyurea
Biological · Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 120 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2000
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 14, 2018 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional

Combination Chemotherapy Followed By Antiviral Therapy and Interferon Alfa in Treating Patients With HTLV-1-Related Adult T-Cell Leukemia/Lymphoma

NCT00041327
View directory record Official record
Conditions
Lymphoma
Interventions
filgrastim, recombinant interferon alfa, Etoposide, cyclophosphamide, doxorubicin hydrochloride, lamivudine, prednisone, vincristine sulfate, zidovudine
Biological · Drug
Lead sponsor
AIDS Malignancy Consortium
Network
Eligibility
18 Years to 120 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
3
States / cities
Los Angeles, California • Miami, Florida • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 3, 2016 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional

Interferon Alfa in Treating Children With HIV-Related Cancer

NCT00002621
View directory record Official record
Conditions
Leukemia, Lymphoma, Unspecified Childhood Solid Tumor, Protocol Specific
Interventions
recombinant interferon alfa
Biological
Lead sponsor
Children's Oncology Group
Network
Eligibility
Up to 21 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1994 – 2005
U.S. locations
7
States / cities
Wichita, Kansas • New Orleans, Louisiana • Hackensack, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 24, 2014 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 2 Interventional Results available

Phase 2 Study of VX-950, Pegasys®, and Copegus® in Hepatitis C

NCT00336479
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
Telaprevir, Ribavirin, Pegylated Interferon Alfa 2a, Placebo
Drug · Other
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 65 Years
Enrollment
263 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
36
States / cities
Phoenix, Arizona • Los Angeles, California • Palo Alto, California + 28 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2014 · Synced Oct 23, 2026, 5:55 AM 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 23, 2026, 5:55 AM EDT
Completed Phase 1Phase 2 Interventional Results available

A Safety and Tolerability Study of Nitazoxanide in HIV-HCV Treatment Failures

NCT01185028
View directory record Official record
Conditions
Hepatitis C Infection, HIV Infection
Interventions
Nitazoxanide With Pegylated Interferon And Ribavirin
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 99 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 5, 2021 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Reducing the Residual Reservoir of HIV-1 Infected Cells in Patients Receiving Antiretroviral Therapy

NCT02471430
View directory record Official record
Conditions
HIV Infection
Interventions
Panobinostat, Pegylated Interferon-alpha2a
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 4 Interventional

Safety and Effectiveness Using Pegasys and Copegus in Recipients of Liver Transplantation With Hepatitis C

NCT00275548
View directory record Official record
Conditions
Liver Transplant, Hepatitis C
Interventions
Pegasys, Copegus
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
19 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 11, 2011 · Synced Oct 23, 2026, 5:55 AM EDT
Completed Phase 3 Interventional Results available

A Study of Combination Therapy With PEGASYS (Pegylated Interferon Alfa-2a (40KD)) and Copegus (Ribavirin) in Patients With Chronic Hepatitis C Genotype 2 or 3 Who Do Not Achieve a Rapid Viral Response

NCT00623428
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
peginterferon alfa-2a, Ribavirin
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
38
States / cities
Birmingham, Alabama • La Jolla, California • Lancaster, California + 32 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2013 · Synced Oct 23, 2026, 5:55 AM 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 23, 2026, 5:55 AM 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 9, 2015 · Synced Oct 23, 2026, 5:55 AM EDT