Efficacy and Safety Study of Ursodeoxycholic Acid to Treat Chronic Hepatitis C
A 24-week Multicenter Double-blind Control Trial With Ursodeoxycholic Acid in Patients With Chronic Hepatitis C
1 other identifier
interventional
596
1 country
1
Brief Summary
This study is a 24-week multicenter, randomized, double-blind control trial with ursodeoxycholic acid (UDCA) in patients with chronic hepatitis C in Japan. The primary objectives of this study are to verify the superiority of efficacy of UDCA 600 or 900mg/day to that of 150mg/day and the safety of UDCA treatment.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Jul 2002
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2002
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2004
CompletedFirst Submitted
Initial submission to the registry
September 12, 2005
CompletedFirst Posted
Study publicly available on registry
September 20, 2005
CompletedResults Posted
Study results publicly available
November 7, 2011
CompletedJanuary 7, 2026
December 1, 2025
September 12, 2005
August 17, 2011
December 15, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Alanine Aminotransferase at Baseline
0 week
Percentage Change of Alanine Aminotransferase From Baseline at Week 24
Percentage change=\[(measured value at Week 24 - measured value at baseline)/measured value at baseline\]\*100
24 weeks (from baseline to Week 24)
Secondary Outcomes (4)
Aspartate Aminotransferase at Baseline
0 week
Percentage Change of Aspartate Aminotransferase From Baseline at Week 24
24 weeks (from baseline to Week 24)
Gamma-glutamyl Transpeptidase at Baseline
0 week
Percentage Change of Gamma-glutamyl Transpeptidase From Baseline at Week 24
24 weeks (from baseline to Week 24)
Study Arms (3)
Ursodeoxycholic acid 150mg / day
EXPERIMENTALUrsodeoxycholic acid 600mg / day
EXPERIMENTALUrsodeoxycholic acid 900mg / day
EXPERIMENTALInterventions
Ursodeoxycholic acid, 600mg/ day, three times a day at meals
Ursodeoxycholic acid, 900mg/ day, three times a day at meals
Ursodeoxycholic acid, 150mg/ day, three times a day at meals
Eligibility Criteria
You may qualify if:
- Subject must have a clinical diagnosis to apply the conservative medication for chronic hepatitis C.
- Serum alanine aminotransferase levels measured at 4-week before the initiation of treatment must be over 61 IU/mL.
- Subject's age must be 20 years or older.
You may not qualify if:
- Subject who received a treatment of antiviral agents (interferon) within 20 weeks before the start of 8-week observation period
- Subject who received a treatment of corticosteroids, immunosuppressive drugs, glycyrrhizic acid, cholestyramine or other drugs which could interfere with hepatic function during 8-week observation period.
- Subject with decompensated cirrhosis
- Subject infecting with other hepatic virus
- Subject receiving a treatment for autoimmune disease, alcohol or drug-induced hepatic disorder, neoplasia, hepato-cholangiolar disease, fulminant hepatitis or peptic ulcer
- Subject who require hospitalization for complications of the heart, kidney or pancreas
- Pregnancy
- Alcoholics
- Alcohol intake more than 27 ml/day
- Subject who involved in other clinical trial within 4 weeks before the start of observation period
- Subject with a history of sensitivity to ursodeoxycholic acid or bile acid-products
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Department of Gastroenterology, University of Tokyo
Hongo, Bunkyo-ku, Tokyo, Japan
Related Publications (1)
Omata M, Yoshida H, Toyota J, Tomita E, Nishiguchi S, Hayashi N, Iino S, Makino I, Okita K, Toda G, Tanikawa K, Kumada H; Japanese C-Viral Hepatitis Network. A large-scale, multicentre, double-blind trial of ursodeoxycholic acid in patients with chronic hepatitis C. Gut. 2007 Dec;56(12):1747-53. doi: 10.1136/gut.2007.120956. Epub 2007 Jun 15.
PMID: 17573387RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Clinical Trials, Information Desk
- Organization
- Tanabe Pharma Corporation
Study Officials
- STUDY CHAIR
Masao Omata, MD
Department of Gastroenterology, University of Tokyo
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
September 12, 2005
First Posted
September 20, 2005
Study Start
July 1, 2002
Study Completion
December 1, 2004
Last Updated
January 7, 2026
Results First Posted
November 7, 2011
Record last verified: 2025-12