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ClinicalTrials.gov public records Last synced Oct 7, 2026, 4:19 AM EDT

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Showing 97–120 of 202 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Pegylated Interferon-alpha2a Clear all
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 7, 2026, 4:19 AM EDT
Completed Not applicable Interventional

Effects of Anti-HIV Therapy on Treatment for Hepatitis C in HCV/HIV Infected Adults

NCT00100581
View directory record Official record
Conditions
HIV Infections, Hepatitis C
Interventions
Efavirenz, Lamivudine, Lopinavir/ritonavir, Pegylated interferon alfa-2a, Ribavirin, Tenofovir disoproxil fumarate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2007
U.S. locations
2
States / cities
New York, New York • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 7, 2026, 4:19 AM EDT
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 7, 2026, 4:19 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 7, 2026, 4:19 AM EDT
Completed Phase 2 Interventional

Study to Determine the Effectiveness of Antiviral Combination Therapy to Treat Hepatitis C Virus (HCV) Infected Patients Who Have Previously Failed Standard of Care

NCT01012895
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
BMS-790052, BMS-650032, Pegylated-interferon alfa-2a, Ribavirin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 70 Years
Enrollment
215 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
10
States / cities
Anaheim, California • Coronado, California • San Jose, California + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2015 · Synced Oct 7, 2026, 4:19 AM EDT
Completed Phase 1 Interventional

A Study of Pegasys Monotherapy in Patients With Chronic Hepatitis B Who Have Participated in Previous Studies

NCT00962975
View directory record Official record
Conditions
Hepatitis B, Chronic
Interventions
peginterferon alfa-2a [Pegasys]
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
2
States / cities
Los Angeles, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2014 · Synced Oct 7, 2026, 4:19 AM EDT
Terminated Phase 2 Interventional Results available

Pegasys in Patients With Chronic Myeloid Leukemia (CML)

NCT01392170
View directory record Official record
Conditions
Leukemia
Interventions
PEG-IFNá-2a
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
16 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 4, 2015 · Synced Oct 7, 2026, 4:19 AM EDT
Completed Phase 3 Interventional

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

NCT00039962
View directory record Official record
Conditions
Hepatitis C, Hepatitis C, Chronic
Interventions
thymalfasin (thymosin alpha 1), 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
54
States / cities
Mobile, Alabama • Scottsdale, Arizona • Anaheim, California + 43 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2008 · Synced Oct 7, 2026, 4:19 AM EDT
Completed Phase 4 Interventional Results available

A Study of PEGASYS (Peginterferon Alfa-2a (40KD)) in Patients With Hepatitis Be Antigen (HBeAg) Positive Chronic Hepatitis B (CHB).

NCT00435825
View directory record Official record
Conditions
Hepatitis B, Chronic
Interventions
peginterferon alfa-2a [Pegasys]
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
551 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
10
States / cities
Los Angeles, California • Palo Alto, California • San Diego, California + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2013 · Synced Oct 7, 2026, 4:19 AM 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, 4:19 AM EDT
Completed Phase 4 Interventional

Efficacy of Actos Lipitor Pegasys & Ribavirin in CHC GT 1 Patients Who Relapsed or Nonresponded to Peg/Riba

NCT00926614
View directory record Official record
Conditions
Hepatitis c
Interventions
pioglitazone (Actos), atorvastatin (Lipitor)
Drug
Lead sponsor
Brooke Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 14, 2012 · Synced Oct 7, 2026, 4:19 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 7, 2026, 4:19 AM EDT
Terminated Phase 2 Interventional Results available

A Study of JNJ-73763989, Pegylated Interferon Alpha-2a and Nucleos(t)Ide Analogs in Participants With Chronic Hepatitis B Virus Infection

NCT05005507
View directory record Official record
Conditions
Hepatitis B, Chronic
Interventions
JNJ-73763989, PegIFN-alpha-2a, Tenofovir disoproxil, TAF, ETV
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Hillsborough, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Oct 7, 2026, 4:19 AM 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, 4:19 AM EDT
Completed Phase 3 Interventional Results available

A Study Evaluating 24-Week and 48-Week Telaprevir-Based Regimen in Treatment Naïve Subjects With Genotype 1 Chronic Hepatitis C Who Achieve an Extended Rapid Viral Response

NCT00758043
View directory record Official record
Conditions
Hepatitis C
Interventions
telaprevir, ribavirin, peginterferon alfa-2a
Drug · Biological
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 70 Years
Enrollment
540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
74
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fresno, California + 57 more
Source: ClinicalTrials.gov public record
Updated Mar 26, 2021 · Synced Oct 7, 2026, 4:19 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 5, 2013 · Synced Oct 7, 2026, 4:19 AM EDT
Completed Phase 3 Interventional Results available

Combination Therapy of Pegylated Interferon Alfa-2a and Tenofovir Versus Tenofovir Monotherapy in Chronic Hepatitis B

NCT01369212
View directory record Official record
Conditions
Hepatitis B
Interventions
Tenofovir, Peginterferon-alfa 2a and tenofovir
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
201 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2021
U.S. locations
20
States / cities
Los Angeles, California • San Francisco, California • Honolulu, Hawaii + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2023 · Synced Oct 7, 2026, 4:19 AM EDT
Terminated Phase 2 Interventional

A Safety and Efficacy Study of the Combination of VX-222 and Telaprevir in Treatment-Naïve Subjects With Genotype 1 Chronic Hepatitis C Virus Infection

NCT01080222
View directory record Official record
Conditions
Chronic Hepatitis C Virus Infection
Interventions
telaprevir, VX-222, ribavirin, peginterferon-alfa-2a
Drug · Biological
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 65 Years
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
19
States / cities
La Jolla, California • San Francisco, California • Aurora, Colorado + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2020 · Synced Oct 7, 2026, 4:19 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 11, 2017 · Synced Oct 7, 2026, 4:19 AM EDT
Recruiting Phase 1 Interventional

AlloHCT With PegINFa for Myelofibrosis

NCT05535764
View directory record Official record
Conditions
Myelofibrosis
Interventions
Pegylated interferon alpha2a
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 7, 2026, 4:19 AM EDT
Recruiting Phase 1Phase 2 Interventional

DOC1021 Dendritic Cell Immunotherapy for Refractory Melanoma

NCT07288112
View directory record Official record
Conditions
Refractory Melanoma
Interventions
DOC1021, Tumor resection, pIFN (peginterferon alfa-2a)
Biological · Procedure · Drug
Lead sponsor
Diakonos Oncology Corporation
Industry
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2033
U.S. locations
8
States / cities
Birmingham, Alabama • Gilbert, Arizona • Scottsdale, Arizona + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Oct 7, 2026, 4:19 AM 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, 4:19 AM 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, 4:19 AM EDT
Completed Phase 3 Interventional Results available

Long Term Interferon for Patients Who Did Not Clear Hepatitis C Virus With Standard Treatment

NCT00006164
View directory record Official record
Conditions
Chronic Hepatitis c, Cirrhosis, Liver, Fibrosis, Liver, Hepatic Cirrhosis
Interventions
Peginterferon alfa-2a + Ribavirin, Peginterferon alfa-2a
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
1,050 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2009
U.S. locations
11
States / cities
Long Beach, California • Los Angeles, California • Denver, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated May 12, 2020 · Synced Oct 7, 2026, 4:19 AM EDT