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ClinicalTrials.gov public records Last synced Oct 7, 2026, 2:45 AM EDT

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Showing 73–96 of 202 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Pegylated-interferon alfa 2a Clear all
Completed Phase 4 Interventional Results available

Efficacy & Safety of Tenofovir Disoproxil Fumarate (TDF) Plus Peginterferon α-2a (Peg-IFN) Versus TDF or Peg-IFN Monotherapy in Chronic Hepatitis B

NCT01277601
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
TDF, Peg-IFN
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 75 Years
Enrollment
751 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
26
States / cities
Los Angeles, California • Palo Alto, California • San Diego, California + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2016 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

Eltrombopag To Initiate And Maintain Interferon Antiviral Treatment To Subjects With Hepatitis C Related Liver Disease

NCT00516321
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
eltrombopag, placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
687 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
47
States / cities
Birmingham, Alabama • Tucson, Arizona • Little Rock, Arkansas + 40 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2013 · Synced Oct 7, 2026, 2:45 AM 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 29, 2016 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

A Study of Pegasys (Peginterferon Alfa-2a) Versus Untreated Control in Children With HBeAg Positive Chronic Hepatitis B

NCT01519960
View directory record Official record
Conditions
Hepatitis B, Chronic
Interventions
peginterferon alfa-2a [Pegasys]
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
3 Years to 17 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2021
U.S. locations
6
States / cities
San Francisco, California • Baltimore, Maryland • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 18, 2022 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

A Study of Pegasys (Peginterferon Alfa-2a) Administered Alone or in Combination With Copegus (Ribavirin) in Patients With Chronic Hepatitis C Who Have Participated in Previous Pegasys Trials

NCT01853254
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
272 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
49
States / cities
Birmingham, Alabama • La Jolla, California • Long Beach, California + 41 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2013 · Synced Oct 7, 2026, 2:45 AM EDT
Completed No phase listed Observational

Brain Deficits in HIV/HCV Coinfected People Before and After Anti-HCV Therapy

NCT00747539
View directory record Official record
Conditions
HIV, Hepatitis C, Infections
Interventions
Pegylated interferon alfa and ribavirin (PEG-IFN/RBV)
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
4
States / cities
Lancaster, California • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 13, 2016 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 3 Interventional

Efficacy and Safety Study of Pegasys in the Treatment of Chronic Hepatitis B

NCT00048945
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
PEGASYS
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
820 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
15
States / cities
Scottsdale, Arizona • Downey, California • Los Angeles, California + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2017 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 2 Interventional Results available

Sofosbuvir in Combination With Pegylated Interferon and Ribavirin and in Treatment-Naive Hepatitis C-infected Patients

NCT01188772
View directory record Official record
Conditions
Hepatitis C Virus
Interventions
Sofosbuvir, Placebo to match sofosbuvir, PEG, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 70 Years
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
22
States / cities
Montgomery, Alabama • Anaheim, California • Coronado, California + 17 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2014 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 2 Interventional Results available

A Safety and Effectiveness Study of TMC435 in Chronic, Genotype 1, Hepatitis C Patients Who Failed to Previous Standard Treatment

NCT00980330
View directory record Official record
Conditions
Hepatitis C
Interventions
TMC435, Placebo, Peg-IFN-alfa-2a (P), Ribavirin (R)
Drug
Lead sponsor
Tibotec Pharmaceuticals, Ireland
Industry
Eligibility
18 Years to 70 Years
Enrollment
463 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
17
States / cities
La Jolla, California • Los Angeles, California • Jacksonville, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2014 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 2 Interventional Results available

Phase II Trial of Peginterferon Alpha-2b and Thalidomide in Adults With Recurrent Gliomas

NCT00047879
View directory record Official record
Conditions
Glioma
Interventions
PEG-interferon alfa-2b, Thalidomide
Biological · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 26, 2011 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 2 Interventional

A Study of RO5024048 in Combination With Pegasys and Copegus in Treatment-Naive Patients With Chronic Hepatitis C, Genotype 1 or 4

NCT00869661
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Copegus, Pegasys, RO5024048
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years to 65 Years
Enrollment
413 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2012
U.S. locations
21
States / cities
Birmingham, Alabama • La Jolla, California • Sacramento, California + 18 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Oct 7, 2026, 2:45 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 7, 2026, 2:45 AM EDT
Completed Phase 2 Interventional

Treatment of Hepatitis C in Hemophilic Patients With HIV

NCT00055341
View directory record Official record
Conditions
HIV Infections, Hepatitis C, Hemophilia
Interventions
Peginterferon alfa-2a, Ribavirin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
15 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 30, 2008 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 2 Interventional

A Study of Danoprevir/Ritonavir and Copegus With RO5024048 and/or Pegasys in Patients With Chronic Hepatitis C

NCT01331850
View directory record Official record
Conditions
Hepatitis C, Chronic
Interventions
Copegus, Pegasys, RO5024048, danoprevir, ritonavir
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
381 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
19
States / cities
La Jolla, California • Long Beach, California • Sacramento, California + 15 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 1 Interventional

Dose-Ranging Study to Assess the Safety, PK and Initial Antiviral Efficacy of NVR 3-778 in Chronic HBV Patients

NCT02401737
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
NVR 3-778, Placebo for NVR 3-778, Pegasys
Drug
Lead sponsor
Novira Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
4
States / cities
Costa Mesa, California • Pasadena, California • San Diego, California + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2017 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 3 Interventional

Hepatitis C Antiviral Resistance in African-Americans

NCT00038974
View directory record Official record
Conditions
Hepatitis C
Interventions
peginterferon alfa-2a, Ribavirin
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 70 Years
Enrollment
401 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
8
States / cities
San Francisco, California • Miami, Florida • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 3, 2017 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 3 Interventional

Safety and Efficacy Study of Pegylated Interferon Lambda With and Without Daclatasvir, Compared to Pegylated Interferon Alfa, Plus Ribavirin in Subjects With Hepatitis C Genotype 2 and 3

NCT01616524
View directory record Official record
Conditions
Hepatitis C Virus (HCV)
Interventions
Pegylated interferon lambda (pegIFNλ), Pegylated interferon alfa-2a (pegIFNα-2a), Ribavirin, Daclatasvir, Placebo matching Daclatasvir
Biological · Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
880 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
18
States / cities
Phoenix, Arizona • San Diego, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2015 · Synced Oct 7, 2026, 2:45 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 22, 2014 · Synced Oct 7, 2026, 2:45 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 2, 2017 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 2 Interventional Results available

S-Adenosyl Methionine (SAMe) to Treat Patients With Chronic Hepatitis C

NCT00475176
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
Peginterferon alfa-2a, Ribavirin, S-adenosyl methionine for Chronic Liver Disease
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 5, 2013 · Synced Oct 7, 2026, 2:45 AM EDT
Terminated Phase 2 Interventional Results available

Pegylated Interferon Alpha-2b in Early Primary Myelofibrosis

NCT01758588
View directory record Official record
Conditions
Myelofibrosis
Interventions
Peginterferon alfa-2a
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
2
States / cities
Atlanta, Georgia • New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 24, 2018 · Synced Oct 7, 2026, 2:45 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 5, 2014 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

Clinical Trial for Non-responders Who Previously Participated in Eltrombopag Studies TPL 103922 or TPL 108390

NCT00996216
View directory record Official record
Conditions
Hepatitis C
Interventions
Eltrombopag, Antiviral therapy
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
6
States / cities
San Diego, California • New Haven, Connecticut • Honolulu, Hawaii + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2013 · Synced Oct 7, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

Open-Label Study of Sofusbuvir+Ribavirin With or Without Peginterferon Alfa-2a in Subjects With Chronic HCV Infection Who Participated in Prior Gilead HCV Studies

NCT01625338
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
SOF, RBV, Peg-IFN
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
534 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
67
States / cities
Birmingham, Alabama • Bakersfield, California • Colton, California + 53 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2015 · Synced Oct 7, 2026, 2:45 AM EDT