The Effect of Adding Metformin to the Treatment of Hepatitis C

Overview[ - collapse ][ - ]

Purpose Insulin resistance is known to adversely effect viral response to treatment in hepatitis C patients We are aiming to study the effect of an insulin sensitizer, metformin, in viral response of hepatitis C to treatment with pegylated interferon and ribavirin in a double blind randomized controlled trial
ConditionHepatitis C
InterventionDrug: Metformin
Drug: pegylated interferon
Drug: Ribavirin
PhasePhase 4
SponsorTehran University of Medical Sciences
Responsible PartyTehran University of Medical Sciences
ClinicalTrials.gov IdentifierNCT00560690
First ReceivedNovember 19, 2007
Last UpdatedJuly 31, 2011
Last verifiedJuly 2011

Tracking Information[ + expand ][ + ]

First Received DateNovember 19, 2007
Last Updated DateJuly 31, 2011
Start DateDecember 2007
Estimated Primary Completion DateDecember 2010
Current Primary Outcome MeasuresSustained viral response, defined as undetectable virus RNA 6 months after end of treatment [Time Frame: 6 months after end of treatment] [Designated as safety issue: No]
Current Secondary Outcome Measures
  • adverse effects leading to discontinuation of treatment [Time Frame: anytime during the study] [Designated as safety issue: Yes]
  • Rapid viral response, defined as undetectable viral RNA one month after start of treatment [Time Frame: one month after start of treatment] [Designated as safety issue: No]
  • Early viral response, defined as undetectable viral RNA or 2 log drop in viral count three month after start of treatment [Time Frame: three months after start of treatment] [Designated as safety issue: No]

Descriptive Information[ + expand ][ + ]

Brief TitleThe Effect of Adding Metformin to the Treatment of Hepatitis C
Official TitleEffect and Safety of Adding Metformin to the Standard Treatment of Hepatitis C on Sustained Viral Response
Brief Summary
Insulin resistance is known to adversely effect viral response to treatment in hepatitis C
patients

We are aiming to study the effect of an insulin sensitizer, metformin, in viral response of
hepatitis C to treatment with pegylated interferon and ribavirin in a double blind
randomized controlled trial
Detailed DescriptionNot Provided
Study TypeInterventional
Study PhasePhase 4
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
ConditionHepatitis C
InterventionDrug: Metformin
500 mg oral three times a day for 6 months
Drug: pegylated interferon
180 micrograms, or 1.5 micrograms/kg body weight weekly SQ injection for 6 or 12 months depending on genotype
Drug: Ribavirin
800-1200 mg PO given in 2 divided doses for 6 to 12 months depending on weight and genotype
Study Arm (s)
  • Placebo Comparator: Placebo
    standard treatment with pegylated interferon and ribavirin + placebo
  • Experimental: Metformin
    standard treatment with pegylated interferon and ribavirin + metformin

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment130
Estimated Completion DateDecember 2010
Estimated Primary Completion DateSeptember 2010
Eligibility Criteria
Inclusion Criteria:

- chronic hepatitis C

- Iranian nationality

- Treatment naive

Exclusion Criteria:

- cirrhosis

- diabetes mellitus

- HBV/HIV coinfection

- contraindications of metformin, interferon, ribavirin

- severe medical conditions (e.g. CHF, CRF, psychosis, ...)

- not consenting
GenderBoth
Ages15 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesIran, Islamic Republic of

Administrative Information[ + expand ][ + ]

NCT Number NCT00560690
Other Study ID Numbers83/53
Has Data Monitoring CommitteeNo
Information Provided ByTehran University of Medical Sciences
Study SponsorTehran University of Medical Sciences
CollaboratorsNot Provided
Investigators Principal Investigator: Shahin Merat, MD Digestive Disease Research Center, Medical Sciences / University of TehranStudy Chair: Reza Malekzadeh, MD Digestive Disease Research Center, Medical Sciences / University of Tehran
Verification DateJuly 2011

Locations[ + expand ][ + ]

Shariati Hospital
Tehran, Iran, Islamic Republic of, 14114