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CompletedNCT00560690Updated Apr 6, 2015

The Effect of Adding Metformin to the Treatment of Hepatitis C

A Phase 4 interventional study of Metformin and pegylated interferon in Hepatitis C, sponsored by Tehran University of Medical Sciences. Completed at 1 site in Iran, Islamic Republic of. Open to participants aged 15 Years to 65 Years. Per ClinicalTrials.gov, last updated 2015-04-06.

Sponsored by Tehran University of Medical Sciences · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
140
Allocation
Randomized
Ages
15 Years to 65 Years
Sex
All
01

Study 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

Read the detailed description

Subjects with hepatitis C will be randomized to receive standard treatment with or without metformin. The results will be compared.

02

Conditions studied

  • Hepatitis C

Keywords

  • Hepatitis C
  • metformin
  • Insulin Resistance
03

In context

Hepatitis A

2,710 studies on the registry are indexed under Hepatitis A; 142 are open to participants now.

This study's enrollment of 140 is above the median of 100 across 1,887 interventional studies indexed under Hepatitis A.

Browse Hepatitis A studies →

Lead sponsor

Tehran University of Medical Sciences is the lead sponsor of 227 studies on the registry; 12 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
15 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • chronic hepatitis C
  • Iranian nationality
  • Treatment naive

Exclusion criteria

Exclusion Criteria:

  • cirrhosis
  • diabetes mellitus
  • HBV/HIV coinfection
  • contraindications of metformin, interferon, ribavirin
  • severe medical conditions (e.g. CHF, CRF, psychosis, ...)
  • not consenting
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
140 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    standard treatment with pegylated interferon and ribavirin + placebo

    Drug: pegylated interferon · Drug: Ribavirin

  • Experimental
    Metformin

    standard treatment with pegylated interferon and ribavirin + metformin

    Drug: Metformin · Drug: pegylated interferon · Drug: Ribavirin

Interventions

  • DrugMetformin

    500 mg oral three times a day for 6 months

  • Drugpegylated interferon

    180 micrograms, or 1.5 micrograms/kg body weight weekly SQ injection for 6 or 12 months depending on genotype

  • DrugRibavirin

    800-1200 mg PO given in 2 divided doses for 6 to 12 months depending on weight and genotype

06

What researchers measure

Primary outcomes

  1. Sustained viral response, defined as undetectable virus RNA 6 months after end of treatment

    Time frame: 6 months after end of treatment

Secondary outcomes

  1. adverse effects leading to discontinuation of treatment

    Time frame: anytime during the study

  2. Rapid viral response, defined as undetectable viral RNA one month after start of treatment

    Time frame: one month after start of treatment

  3. 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

07

Study locations

1 site
  • Shariati Hospital
    Tehran, 14114, Iran, Islamic Republic of
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 6, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00560690
Lead sponsor
Tehran University of Medical Sciences
Responsible party
Shahin Merat (Professor, Tehran University of Medical Sciences) — Principal investigator
First posted
Nov 20, 2007
Start date
Dec 2007
Primary completion
Sep 2010
Completion
Dec 2010
Last update
Apr 6, 2015

Study contacts

Shahin Merat, MD
principal investigator · Digestive Disease Research Center, Medical Sciences / University of Tehran
Reza Malekzadeh, MD
study chair · Digestive Disease Research Center, Medical Sciences / University of Tehran

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2015. You cannot join it, but the record below documents what was studied.

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