A Study of Early Immunologic Response in Asian Patients With Chronic Hepatitis B, Treated With Pegasys (Peginterferon Alfa-2a (40KD)), Nucleoside Analogues, or Both

This study has been completed.
Information provided by (Responsible Party):
Hoffmann-La Roche
ClinicalTrials.gov Identifier:
First received: August 19, 2009
Last updated: October 1, 2015
Last verified: October 2015
This open-label, randomized, parallel-arm study will assess the early immunologic response in treatment-naïve Asian male patients with chronic hepatitis B after initiation of treatment with Pegasys or tenofovir or Pegasys plus tenofovir. Patients will be randomized to one of 4 cohorts to receive either Pegasys (360mcg subcutaneously weekly) or tenofovir (300mg orally daily) or both or no treatment for 2 weeks. After 2 weeks on study treatment, patients may opt to receive standard of care treatment with Pegasys. Target sample size is <50.

Condition Intervention Phase
Hepatitis B, Chronic
Drug: peginterferon alfa-2a [Pegasys]
Drug: tenofovir
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: An Open-label, Randomized Study to Evaluate the Acute Immunologic Responses in Asian Subjects With E Antigen Positive Chronic Hepatitis B Following Initiation of Therapy for Hepatitis B With Pegasys, Nucleoside Analogues, or Both.

Resource links provided by NLM:

Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Acute immunologic response [ Time Frame: assessed days 1-14 and weekly during follow-up ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Early kinetics of viral suppression [ Time Frame: assessed days 1-14 and weekly during follow-up ] [ Designated as safety issue: No ]
  • Early changes in viral sequence associated with viral suppression [ Time Frame: assessed days 1, 14, 28 and 42 ] [ Designated as safety issue: No ]

Enrollment: 30
Study Start Date: August 2009
Study Completion Date: February 2012
Primary Completion Date: February 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1 Drug: tenofovir
300mg po daily for 2 weeks
Experimental: 2 Drug: peginterferon alfa-2a [Pegasys]
360 micrograms sc/week for 2 weeks
Drug: tenofovir
300mg po daily for 2 weeks
Experimental: 3 Drug: peginterferon alfa-2a [Pegasys]
360 micrograms sc/week for 2 weeks
No Intervention: 4


Ages Eligible for Study:   18 Years to 55 Years
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • male adults of Southeast and/or East Asian origin, 18-55 years of age
  • HBeAg-positive chronic hepatitis B
  • detectable HBV DNA

Exclusion Criteria:

  • prior antiviral therapy for chronic hepatitis B
  • evidence of bridging fibrosis, cirrhosis or decompensated liver disease
  • positive test at screening for HAV (IgM), HCV, HDV or HIV
  • history or evidence of medical condition associated with chronic liver disease
  • antineoplastic or immunomodulatory treatment </=6 months prior to first dose of study drug
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00962871

United States, California
Los Angeles, California, United States, 90036
San Francisco, California, United States, 94143-0538
New Zealand
Grafton, New Zealand, 1010
Singapore, Singapore, 119228
Singapore, Singapore, 169608
Taipei, Taiwan, 100
Sponsors and Collaborators
Hoffmann-La Roche
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

No publications provided by Hoffmann-La Roche

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT00962871     History of Changes
Other Study ID Numbers: PP22512
Study First Received: August 19, 2009
Last Updated: October 1, 2015
Health Authority: New Zealand: Health Research Council

Additional relevant MeSH terms:
Hepatitis A
Hepatitis B
Hepatitis B, Chronic
Hepatitis, Chronic
DNA Virus Infections
Digestive System Diseases
Enterovirus Infections
Hepadnaviridae Infections
Hepatitis, Viral, Human
Liver Diseases
Picornaviridae Infections
RNA Virus Infections
Virus Diseases
Peginterferon alfa-2a
Anti-Infective Agents
Antiviral Agents
Immunologic Factors
Pharmacologic Actions
Physiological Effects of Drugs
Therapeutic Uses

ClinicalTrials.gov processed this record on November 30, 2015