This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Ribavirin, Its Dosing Regime (Ribados)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified July 2011 by Maastricht University Medical Center.
Recruitment status was:  Recruiting
Roche Pharma AG
Information provided by:
Maastricht University Medical Center Identifier:
First received: June 7, 2007
Last updated: July 19, 2011
Last verified: July 2011
The purpose of this study is to determine if the medicines for chronic hepatitis C can be taken once daily, instead of twice daily.

Condition Intervention Phase
Hepatitis C Drug: Ribavirin Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Ribavirin, Its Dosing Regime

Resource links provided by NLM:

Further study details as provided by Maastricht University Medical Center:

Primary Outcome Measures:
  • The pharmacokinetics of ribavirin at different dosage regimes, measured by the area under the curve of the concentration-time graph [ Time Frame: within 24 weeks after enrollment ]

Secondary Outcome Measures:
  • The tolerability of the treatment at different dosage regimes of ribavirin [ Time Frame: 24 weeks of treatment ]
  • The antioxidant capacity in plasma and erythrocytes at different dosing regimes [ Time Frame: 24 weeks of treatment ]
  • The effect of ribavirin on the hemolysis [ Time Frame: 24 weeks of treatment ]
  • The pharmacokinetics of ribavirin in erythrocytes in the different dosing regimes [ Time Frame: 24 weeks of treatment ]

Estimated Enrollment: 20
Study Start Date: July 2007
Estimated Study Completion Date: February 2012
Estimated Primary Completion Date: December 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1 Drug: Ribavirin
different dosing regimes of Ribavirin
Experimental: 2 Drug: Ribavirin
different dosing regimes of Ribavirin

Detailed Description:

The standard treatment of patients with chronic hepatitis C infection (HCV) is treatment with ribavirin. Actually, the compliance (2x daily) seems to be a problem. To increase patients' compliance, it is investigated if the total dose of ribavirin can be taken once daily.

The pharmacokinetics of ribavirin at different dosage regimes is investigated.


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

Inclusion Criteria:

  • anti-HCV positivity > 6 months
  • Positive HCV-RNA genotype 1 or 4
  • Liver biopsy within one year before the start of therapy
  • Intention to be treated and participate treatment
  • body weight at or above 75 kg

Exclusion Criteria:

  • HIV positive
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00484328

Contact: Jiska M Balk, PhD +31433882106

University of Maastricht Recruiting
Maastricht, Netherlands, 6229 ER
Sponsors and Collaborators
Maastricht University Medical Center
Roche Pharma AG
Principal Investigator: Aalt Bast, Prof.Dr. Maastricht University
  More Information

Responsible Party: Prof. A.Bast, Maastricht University Identifier: NCT00484328     History of Changes
Other Study ID Numbers: MEC-07-3-007
Study First Received: June 7, 2007
Last Updated: July 19, 2011

Keywords provided by Maastricht University Medical Center:
hepatitis C

Additional relevant MeSH terms:
Hepatitis C
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Flaviviridae Infections
RNA Virus Infections
Molecular Mechanisms of Pharmacological Action
Antiviral Agents
Anti-Infective Agents processed this record on September 25, 2017