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Hepatitis B, ChronicPhase 4NCT00436163

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

A Phase 4 study testing Peginterferon alfa-2a in people with Hepatitis B, Chronic, run by Hoffmann-La Roche at 9 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Hepatitis B, Chronic
What is being tested?
Peginterferon alfa-2a
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
39 participants
Where
9 sitesin 3 countries
Study dates
Mar 2007to May 2010
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.

Who cannot join

  • 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.

Trial locations and contacts

9 sites in 3 countries.

9 sites in 3 countries

Lithuania5 sites
  • Study site

    Kaunas, 47144

  • Study site

    Kaunas, 50009

  • Study site

    Klaipėda, 92288

  • Study site

    Vilnius, 08117

  • Study site

    Vilnius, 08661

Other trials in Lithuania

Estonia3 sites
  • Study site

    Tallinn, 10138

  • Study site

    Tallinn, 10617

  • Study site

    Tartu, 51014

Other trials in Estonia

Latvia1 site
  • Study site

    Riga, 1006

Other trials in Latvia

About this study

Official title: Baltic Post-marketing Program of PEGASYS (Peg Interferon Alpha-2a 40KD) in Patients With HBeAg-positive and HBeAg-negative 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.

Being tested
Peginterferon alfa-2a
Medical subject headings
Hepatitis B, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Peginterferon alfa-2aDrug

    Also called Pegasys®

    180 mcg subcutaneously once per week for 48 weeks.

Study groups in NCT00436163
Study groupRoleWhat they receive
Peginterferon Alfa-2aExperimentalParticipants received peginterferon alfa-2a (Pegasys) 180 mcg subcutaneously once per week for 48 weeks.
Receives: Drug: Peginterferon alfa-2a

What is being measured

The primary outcome is the main question the study is designed to answer.

  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)

    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.

    Measured: Week 72

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

    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.

    Measured: Week 72

Secondary outcomes (6)
  1. Number of Participants With HBV-DNA < 400 Copies/mL

    Measured: Week 72

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

    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.

    Measured: Week 48 and Week 72

  3. Percentage of Anti-HBs Positive Participants

    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.

    Measured: Week 48 and Week 72

  4. Mean Alanine Aminotransferase (ALT) Concentrations

    Measured: Week 48 and Week 72

  5. Percentage of HBeAg Negative Participants

    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.

    Measured: Week 48 and Week 72

  6. Percentage of Anti-HBe Positive Participants

    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.

    Measured: Week 48 and Week 72

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Feb 2007 (estimated)
  2. Study startMar 2007
  3. Primary completionMay 2010
  4. Study completionMay 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
39 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00436163
Sponsor's protocol ID
ML20601
Status last verified
Aug 2016
First submitted
15 Feb 2007
Last updated
24 Oct 2016

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Peginterferon alfa-2a in people with Hepatitis B, Chronic, run by Hoffmann-La Roche at 9 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Oct 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 9 sites in Lithuania, Estonia, Latvia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 24 Oct 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

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). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Oct 2016.

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