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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)

This study has been withdrawn prior to enrollment.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01727271
First Posted: November 15, 2012
Last Update Posted: September 19, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp.
  Purpose
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.

Condition Intervention Phase
Hepatitis B Drug: Tenofovir Biological: Pegylated interferon alpha-2b Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: 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.

Resource links provided by NLM:


Further study details as provided by Merck Sharp & Dohme Corp.:

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

Enrollment: 0
Study Start Date: August 2013
Estimated Study Completion Date: August 2017
Estimated Primary Completion Date: August 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
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 Name: 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 Name: 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 Name: Truvada
Biological: Pegylated interferon alpha-2b
Other Names:
  • SCH 054031
  • MK-4031

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

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
  Contacts and Locations
No Contacts or Locations Provided
  More Information

Responsible Party: Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier: NCT01727271     History of Changes
Other Study ID Numbers: 4031-384
First Submitted: November 12, 2012
First Posted: November 15, 2012
Last Update Posted: September 19, 2013
Last Verified: September 2013

Additional relevant MeSH terms:
Hepatitis
Hepatitis A
Hepatitis, Chronic
Hepatitis B
Hepatitis B, Chronic
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Hepadnaviridae Infections
DNA Virus Infections
Interferons
Tenofovir
Interferon-alpha
Peginterferon alfa-2b
Antineoplastic Agents
Antiviral Agents
Anti-Infective Agents
Reverse Transcriptase Inhibitors
Nucleic Acid Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-Retroviral Agents
Anti-HIV Agents
Immunologic Factors
Physiological Effects of Drugs