A Study of the Safety and Efficacy of Pegylated Inferferon Alfa-2b (PEG-Intron™) Versus Pegylated Interferon Alfa-2a (PEGASYS™) in Participants With Chronic Hepatitis B (P08450)

July 27, 2018 updated by: Merck Sharp & Dohme LLC

A Multicenter Open-label Study to Evaluate the Safety and Efficacy of PEG-Intron™ Versus PEGASYS™ in Subjects With HBeAg Positive Chronic Hepatitis B and HBeAg Negative Chronic Hepatitis B Protocol No. MK-4031-376-00 (Also Known as SCH 054031, P08450)

This study is being done to compare the safety and efficacy of PEG-Intron™ to that of PEGASYS™ in participants with chronic hepatitis B (hepatitis B envelope antigen [HBeAg] positive or negative) who have not previously been treated with interferon.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
402

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Must be able to adhere to dose and visit schedules
  • ≥ 40 kg
  • Hepatitis B surface antigen (HBsAg) positive for at least 6 months
  • Anti-HBs negative
  • Female participants of childbearing potential must agree to use an acceptable

method of contraception from at least 2 weeks prior to Day 1 and continue until at least 1 month after last dose of study drug

Inclusion Criteria for HBeAg(+) participants:

  • HBeAg(+)
  • Anti-HBe(-)

Inclusion Criteria for HBeAg(-) participants:

  • HBeAg(-)
  • Anti-HBe(+)

Exclusion Criteria:

  • Co-infection with the human immunodeficiency virus (HIV) or hepatitis C or hepatitis D virus
  • Prior treatment with interferon for hepatitis B
  • Use of nucleoside/nucleotide analogues within 6 months of the screening visit or at any time during the study
  • Use of any investigational drug within 30 days of the screening visit
  • Prior treatment with herbal remedies with known hepatotoxicity. All herbal remedies used for hepatitis B treatment must be discontinued before Day 1
  • Evidence of decompensated liver disease including, but not limited to, a history or presence of clinical ascites, bleeding varices, or hepatic encephalopathy
  • Diabetic and/or hypertensive with clinically significant ocular examination findings
  • History of stroke or transient ischemic attack
  • Immunologically mediated disease (e.g., inflammatory bowel disease [Crohn's disease, ulcerative colitis], celiac disease, rheumatoid arthritis, idiopathic thrombocytopenic purpura, systemic lupus erythematosus, autoimmune hemolytic anemia, scleroderma, sarcoidosis, severe psoriasis requiring oral or injected treatment, or symptomatic thyroid disorder)
  • Chronic pulmonary disease (e.g., chronic obstructive pulmonary disease, interstitial lung disease, pulmonary fibrosis, sarcoidosis)
  • Current or history of any clinically significant cardiac abnormalities/dysfunction
  • Any medical condition requiring, or likely to require, chronic systemic administration of corticosteroids during the course of the trial
  • Myelodysplastic syndromes
  • Organ transplants (including hematopoietic stem cell transplants) other than cornea and hair
  • Pregnant or nursing, or intending to become pregnant during the trial period

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: HBeAg(+) PEG-Intron
HBeAg-positive participants receive 1.5 mcg/kg/wk PEG-Intron subcutaneously (SC) once weekly for 48 weeks.
Biological: PEG-Intron™
PEG-Intron subcutaneously (SC) once weekly for a total of 48 weeks
Other Names:
  • SCH 054031
  • Pegylated interferon alfa-2b
Active Comparator: HBeAg(+) PEGASYS
HBeAg-positive participants receive 180 mcg/kg/wk PEGASYS SC once weekly for 48 weeks.
Biological: PEGASYS™
PEGASYS subcutaneously (SC) once weekly for a total of 48 weeks
Other Names:
  • Pegylated interferon alfa-2a
Experimental: HBeAg(-) PEG-Intron
HBeAg-negative participants receive 1.5 mcg/kg/wk PEG-Intron SC once weekly for 48 weeks.
Biological: PEG-Intron™
PEG-Intron subcutaneously (SC) once weekly for a total of 48 weeks
Other Names:
  • SCH 054031
  • Pegylated interferon alfa-2b
Active Comparator: HBeAG(-) PEGASYS
HBeAg-negative participants receive 180 mcg/kg/wk PEGASYS SC once weekly for 48 weeks.
Biological: PEGASYS™
PEGASYS subcutaneously (SC) once weekly for a total of 48 weeks
Other Names:
  • Pegylated interferon alfa-2a

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of HBeAg(+) Participants Achieving HBeAg Seroconversion at 24 Weeks Post-treatment
Time Frame: FU Week 24 (Study Week 72)
Blood samples were drawn to assess the participant's seroconversion status at Follow-up (FU) Week 24. HBeAg seroconversion was defined as loss of HBeAg in HBeAg(+) participants and development of antibody to HBeAg.
FU Week 24 (Study Week 72)
Percentage of HBeAg(-) Participants Achieving Hepatitis B Virus (HBV) Deoxyribonucleic Acid (DNA) Levels <2000 IU/mL at 24 Weeks Post-treatment
Time Frame: FU Week 24 (Study Week 72)
The Roche COBAS TaqMan HBV-(High Pure System Assay) was used to measure HBV DNA in blood samples of HBeAg(-) participants. The percentage of HBeAg(-) participants with HBV DNA <2000 IU/mL at 24 weeks post-treatment was reported.
FU Week 24 (Study Week 72)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of HBeAg(+) Participants Achieving HBV DNA <2000 IU/mL at 24 Weeks Post-treatment
Time Frame: FU Week 24 (Study Week 72)
The Roche COBAS TaqMan HBV-(High Pure System Assay) was used to measure HBV DNA in blood samples of HBeAg(+)participants. The percentage of HBeAg(+) participants with HBV DNA <2000 IU/mL at 24 weeks post-treatment was reported.
FU Week 24 (Study Week 72)
Percentage of HBeAg(+) and HBeAg(-) Participants Achieving Alanine Aminotransferase (ALT) Normalization at 24 Weeks Post-treatment
Time Frame: FU Week 24 (Study Week 72)
ALT normalization is a desired goal of HBV treatment, which is defined as having abnormal ALT levels at baseline and subsequently normal ALT levels after receiving treatment, where normal is defined as ≤ 1x the upper limit of normal (ULN). The percentage of HBeAg(+) and HBeAg(-) participants achieving ALT normalization at 24 weeks post-treatment was reported.
FU Week 24 (Study Week 72)
Percentage of HBeAg(+) Participants Achieving the Combined Response of HBeAg Seroconversion and HBV DNA <2000 IU/mL at 24 Weeks Post-treatment
Time Frame: FU Week 24 (Study Week 72)
HBeAg seroconversion was defined as loss of HBeAg in HBeAg(+) participants and development of antibody to HBeAg. HBV DNA levels in blood were measured by the Roche COBAS TaqMan HBV-(High Pure System Assay). The percentage of HBeAg(+) participants with the combined response of achieving both HBeAg conversion and HBV DNA levels <2000 IU/mL at 24 weeks post-treatment was reported.
FU Week 24 (Study Week 72)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Merck Sharp & Dohme LLC

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Study Director, Merck Sharp & Dohme LLC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 26, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 21, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 21, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 11, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 16, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 17, 2012

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 27, 2018

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 27, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • P08450
  • MK-4031-376 (Other Identifier: Merck study number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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