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Efficacy and Safety of Clevudine Compared With Adefovir in Patients With HBeAg Positive Chronic Hepatitis Due to Hepatitis B Virus (QUASH 1)

This study has been terminated.
(The study was terminated in the interest of patient safety.)
Information provided by:
Pharmasset Identifier:
First received: July 2, 2007
Last updated: April 23, 2009
Last verified: April 2009
The objectives of this study are to compare in nucleoside treatment-naïve subjects, the efficacy and safety of clevudine 30 mg once daily versus adefovir 10 mg once daily, each as monotherapy, for 48 weeks and 96 weeks.

Condition Intervention Phase
Chronic Hepatitis Hepatitis B Drug: Clevudine Drug: Adefovir Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Masking: Double
Primary Purpose: Treatment
Official Title: A Multi-Center, Randomized, Double-Blind, Active-Control, 96 Week, Phase III Trial of the Efficacy and Safety of Clevudine Compared With Adefovir at Weeks 48 and 96 in Nucleoside Treatment-Naïve Patients With HBeAg Positive Chronic Hepatitis Due to Hepatitis B Virus

Resource links provided by NLM:

Further study details as provided by Pharmasset:

Study Start Date: August 2007

Ages Eligible for Study:   16 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Nucleoside treatment-naïve subjects of either gender, females who are non-pregnant and non-lactating, aged 16 years or older (or the legal age of consent as allowed by local regulations), with compensated hepatic function despite a diagnosis of chronic HBeAg positive hepatitis B infection (i.e., based on serological, virological and histological markers) will be eligible for this study.
  • Subjects with historical biopsies used for entry will have chronic hepatic inflammatory injury at screening (Knodell HAI score ≥ 4 and modified Ishak fibrosis score ≤ 5). If applicable, subjects must cease previous treatment with any form of alpha interferon 12 months prior to baseline.
  • For eligibility, subjects must meet the laboratory criteria for total bilirubin, prothrombin time, serum albumin, platelet count, absolute neutrophil count, ANA titer and have a creatinine clearance of ≥ 50 mL/min.

Exclusion Criteria:

  • Subjects participating in a clinical trial or receiving an investigational agent for any reason within 60 days of baseline will be excluded.
  • Subjects with clinically significant concomitant diseases will be excluded.
  Contacts and Locations
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Please refer to this study by its identifier: NCT00496002

  Show 134 Study Locations
Sponsors and Collaborators
Study Director: M. Michelle Berrey, MD, MPH Pharmasset
  More Information Identifier: NCT00496002     History of Changes
Other Study ID Numbers: CI-PSI-5268-06-305
Study First Received: July 2, 2007
Last Updated: April 23, 2009

Keywords provided by Pharmasset:
Hepatitis B virus
Nucleoside Treatment-Naïve Patients with HBeAg Positive

Additional relevant MeSH terms:
Hepatitis A
Hepatitis, Chronic
Hepatitis B
Hepatitis, Viral, Human
Liver Diseases
Digestive System Diseases
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Hepadnaviridae Infections
DNA Virus Infections
Adefovir dipivoxil
Antiviral Agents
Anti-Infective Agents
Reverse Transcriptase Inhibitors
Nucleic Acid Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-Retroviral Agents processed this record on September 21, 2017