A Study to Compare Efficacy and Safety of Tenofovir Used Alone or in Combination With Pegylated Interferon Alpha-2b in Participants With Chronic Hepatitis B and Elevated Alanine Aminotransferase (MK-4031-384)

September 18, 2013 updated by: Merck Sharp & Dohme LLC

An Open-Label, Pilot, Randomized, Multi-Center Study to Compare Efficacy and Safety of Tenofovir Monotherapy Alone With Tenofovir Monotherapy Followed by Concurrent Combination of Pegylated Interferon-Alpha-2b and Tenofovir or Tenofovir Monotherapy Followed by Sequential Therapy of Pegylated Interferon-Alpha-2b and Tenofovir in HBeAG-Positive Chronic Hepatitis B Patients With Raised ALT.

This study will compare monotherapy with tenofovir to sequential therapy with pegylated interferon alpha-2b (pegIFN-2b) followed by tenofovir, and to combination therapy with pegIFN-2b + tenofovir, in participants with hepatitis B e antigen (HBeAg)-positive chronic hepatitis B and elevated alanine aminotransferase (ALT). All enrolled participants will be be administered tenofovir alone for 8 weeks and then will be randomly assigned to 1 of the 3 treatment arms.

Study Overview

Status

Status

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Withdrawn

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

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 4

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:

  • Chronic hepatitis B (hepatitis B surface antigen [HBsAg]-positive for >6 months or evidence of chronic hepatitis B in liver biopsy)
  • Elevated serum ALT level
  • Liver biopsy or a non-invasive investigation within 12 months prior to randomization with Chronic Hepatitis B
  • Treatment naïve or history of interferon for not more than 1 month, taken at least 6 months before enrollment
  • Compensated liver disease

Exclusion Criteria:

  • Known hypersensitivity to tenofovir, interferon alpha-2b, and/or any other component of the study products
  • Co-infection with hepatitis C virus (HCV), hepatitis D virus (HDV) or human immunodeficiency virus (HIV)
  • Need for prolonged or frequent use of systemic acyclovir or famciclovir
  • Previously received lamivudine or an investigational anti-hepatitis B virus (HBV) nucleoside or nucleotide analog and were resistant to these drugs
  • History of variceal bleeding or other GI bleeding due to portal hypertension, hepatic encephalopathy, spontaneous bacterial peritonitis, Grade III and IV esophageal varices unless banded or other clinical signs of hepatic decompensation
  • History of hepatocellular carcinoma (HCC) or findings suggestive of possible HCC
  • Need for potentially hepatotoxic drugs (e.g. dapsone, erythromycin, fluconazole, ketoconazole, rifampin, and anti-tuberculosis regimens) or nephrotoxic drugs (e.g. frequent nonsteroidal anti-inflammatories, aminoglycosides, amphotericin B, and foscarnet)
  • One or more additional known primary or secondary causes of liver disease, other than hepatitis B
  • History of clinical pancreatitis
  • Pregnant or breastfeeding
  • Female participants of childbearing potential and male participants must be willing to use acceptable method of birth control.
  • Medical condition that requires frequent or prolonged use of systemic corticosteroids
  • Use of warfarin or other anticoagulants during 30 days prior to screening or if expected to be needed during the study 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.
Active Comparator: Tenofovir Monotherapy
Tenofovir 300 mg tablet, orally (PO) once daily for 8 weeks, then Tenofovir 300 mg tablet, PO, once daily for an additional 96 weeks (total treatment duration 104 weeks)
Drug: Tenofovir
Other Names:
  • Truvada
Experimental: PegIFN-2b/Tenofovir Sequential Therapy
Tenofovir 300 mg tablet, PO, once daily for 8 weeks, then PegIFN-2b, 1.5 mcg/kg subcutaneously (SC), once weekly, for 24 weeks, then Tenofovir 300 mg tablet, PO, once daily for 72 weeks (total treatment duration 104 weeks)
Drug: Tenofovir
Other Names:
  • Truvada
Biological: Pegylated interferon alpha-2b
Other Names:
  • SCH 054031
  • MK-4031
Experimental: Peg-IFN-2b + Tenofovir Combination Therapy
Tenofovir 300 mg tablet, PO once daily for 8 weeks, then pegIFN-2b, 1.5 mcg/kg SC once weekly and tenofovir 300 mg tablet, PO, once daily for 24 weeks, and then tenofovir 300 mg tablet, PO, once daily for 72 weeks (total treatment duration 104 weeks)
Drug: Tenofovir
Other Names:
  • Truvada
Biological: Pegylated interferon alpha-2b
Other Names:
  • SCH 054031
  • MK-4031

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
Time Frame
Number of participants who responded to treatment
Time Frame: Week 128
Week 128
Number of participants experiencing adverse events (AEs)
Time Frame: Up to 128 weeks
Up to 128 weeks
Number of participants discontinuing study therapy due to AEs
Time Frame: Up to 104 weeks
Up to 104 weeks

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

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

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.
August 1, 2013

Primary Completion (Anticipated)

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.
August 1, 2017

Study Completion (Anticipated)

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.
August 1, 2017

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).
November 12, 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.
November 12, 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.
November 15, 2012

Study Record Updates

Last Update Posted (Estimate)

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.
September 19, 2013

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.
September 18, 2013

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.
September 1, 2013

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.
  • 4031-384

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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