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NCT Number: NCT00436163

A Study of Peginterferon Alfa-2a (40KD) (PEGASYS®) in Participants With Hepatitis B Envelope Antigen (HBeAg) - Positive Chronic Hepatitis B

This single-arm study will evaluate the efficacy and safety of peginterferon alfa-2a in treatment-naive Baltic participants with Hepatitis B envelope antigen (HBeAg)-positive chronic Hepatitis B virus (HBV). All participants will receive peginterferon alfa-2a 180 micrograms (mcg) subcutaneously once weekly. Following 48 weeks of treatment, there will be a 24 week period of treatment-free follow-up. The anticipated time on study treatment is 3-12 months, and the target sample size is less than 100 participants.

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Key information

Conditions

Hepatitis B, Chronic Blood-Borne Infections Chronic Disease Communicable Diseases DNA Virus Infections Digestive System Diseases Disease Attributes Hepadnaviridae Infections Hepatitis Hepatitis B Hepatitis, Chronic Hepatitis, Viral, Human Infections Liver Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms Virus Diseases

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Tallinn, Estonia

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Adult participants, 18-70 years of age;
  • HBeAg positive, Hepatitis B surface antigen (HBsAg) positive for greater than or equal to 6 months;
  • anti-HBs negative;
  • Hepatitis B virus deoxyribonucleic acid (HBV DNA) greater than 5,00,000 copies/milliliters.

Exclusion criteria

  • Previous antiviral or interferon-based therapy for chronic hepatitis B;
  • Evidence of decompensated liver disease;
  • Chronic liver disease other than viral hepatitis;
  • Co-infection with active hepatitis A, C or D virus;
  • Co-infection with human immunodeficiency virus.

Treatment and study plan

Peginterferon alfa-2a

Drug

180 mcg subcutaneously once per week for 48 weeks.

Other names: Pegasys®

Primary outcomes

  1. Number of Hepatitis B Envelope Antigen (HBeAg) Positive Participants With Hepatitis B Virus Deoxyribonucleic Acid (HBV-DNA) Less Than (<) 1,00,000 Copies Per Milliliter (Copies/mL)

    Time frame: Week 72

    HBeAg is a soluble antigen of hepatitis B virus present in the blood during acute infection, and disappear afterward but sometimes persisting in chronic disease. HBeAg positive participants were defined as those who had HBV DNA greater than (>) 1,00,000 copies/mL at baseline. This outcome measured the number of participants with HBV-DNA levels < 1,00,000 copies/mL at Week 72, who were defined as HBeAg positive at baseline.

  2. Number of HBeAg Negative Participants With HBV-DNA < 10,000 Copies/mL

    Time frame: Week 72

    HBeAg is a soluble antigen of hepatitis B virus present in the blood during acute infection, and disappear afterward but sometimes persisting in chronic disease. HBeAg negative participants were defined as those who had HBV DNA >10,000 copies/mL at baseline. This outcome measured the number of participants with HBV DNA <10,000 copies/mL at Week 72, who were defined as HBeAg negative at baseline.

Secondary outcomes

  1. Number of Participants With HBV-DNA < 400 Copies/mL

    Time frame: Week 72

  2. Percentage of Hepatitis B Surface Antigen (HBsAg) Negative Participants

    Time frame: Week 48 and Week 72

    HBsAg seroconversion was defined as the absence of HBsAg (HBsAg negative) and the presence of anti-HBs (anti-HBs positive) for HBsAg participants. Percentage of HBsAg negative participants were reported.

  3. Percentage of Anti-HBs Positive Participants

    Time frame: Week 48 and Week 72

    HBsAg seroconversion was defined as the absence of HBsAg (HBsAg negative) and the presence of anti-HBs (anti-HBs positive) for HbsAg participants. Percentage of Anti-HBs positive participants were reported.

  4. Mean Alanine Aminotransferase (ALT) Concentrations

    Time frame: Week 48 and Week 72

  5. Percentage of HBeAg Negative Participants

    Time frame: Week 48 and Week 72

    HBeAg seroconversion was defined as the absence of HBeAg (HBeAg negative) and the presence of anti-HBe (anti-HBe positive) for HBeAg positive participants. Percentage of HBeAg negative participants were reported.

  6. Percentage of Anti-HBe Positive Participants

    Time frame: Week 48 and Week 72

    HBeAg seroconversion was defined as the absence of HBeAg (HBeAg negative) and the presence of anti-HBe (anti-HBe positive) for HBeAg participants. Percentage of Anti-HBe positive participants were reported.

Sponsors and collaborators

Lead sponsor

Hoffmann-La Roche

Industry

Registry information

Official study title

Baltic Post-marketing Program of PEGASYS (Peg Interferon Alpha-2a 40KD) in Patients With HBeAg-positive and HBeAg-negative Chronic Hepatitis B

Important dates

Study start
2007
Primary completion
2010
Study completion
2010
First posted
Feb 16, 2007
Registry last updated
Oct 24, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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