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Efficacy of Long-term Ribavirin in Non-responders With Chronic Hepatitis C and Advanced Fibrosis (RIBACIR)

M

Madrid Health Service

Status and phase

Terminated
Phase 2

Conditions

Chronic Hepatitis C

Treatments

Drug: Colchicine
Drug: Ribavirin

Study type

Interventional

Funder types

Other

Identifiers

NCT00840489
RIBACIR-1

Details and patient eligibility

About

The rate of sustained virological response to a course of standard antiviral therapy (peg-interferon plus ribavirin) of patients with chronic hepatitis C infected by genotype 1 with advanced fibrosis (>F2) is rather low. Monotherapy with ribavirin reduces ALT levels and necroinflammatory liver activity in up to a half of non-responders to standard antiviral therapy, but without changes in liver fibrosis or viremia. Such a beneficial effect seems to be mainly due to the immunomodulatory effect of ribavirin. Portal pressure, as measured by HVPG, lowers in patients with chronic hepatitis C and advanced fibrosis with end-of-treatment response to peg-interferon plus ribavirin. Portal pressure reduction in this setting relates to a reduction of the necroinflammatory liver activity, but not with fibrosis amelioration. We hypothesize that monotherapy with ribavirin reduces portal pressure in hepatitis C patients with advanced fibrosis by means of its immunomodulatory and anti-inflammatory effects, and could constitute an alternative to non-responders to standard antiviral treatment. Portal pressure measurement has become a validated surrogate outcome measure in chronic liver disease, since decreasing portal pressure has shown consistent improvement in survival and clinical outcomes, such as complications of portal hypertension. The primary aim of this study is to investigate whether ribavirin monotherapy slows the progression of advanced chronic liver disease by hepatitis C as assessed by a reduction in HVPG.

Enrollment

50 patients

Sex

All

Ages

18 to 75 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • HCV RNA in serum
  • AST/ALT greater than the upper limit of normal range
  • HVPG >5 mm Hg
  • Non-response or contraindication to a standard course of antiviral therapy

Exclusion criteria

  • Active alcoholism
  • HIV infection
  • Serum creatinine >1.2 mg/dl, hemoglobin <11 g/dl, hemolysis, symptomatic ischemic heart disease or cerebrovascular disease
  • Decompensated chronic liver disease
  • Pregnancy
  • Hypersensitivity to the drugs of the study
  • Severe concomitant disease

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

50 participants in 2 patient groups

Ribavirin
Experimental group
Description:
Ribavirin 1000-1200 mg qd
Treatment:
Drug: Ribavirin
Colchicine
Active Comparator group
Description:
Colchicine 0.5 mg bd
Treatment:
Drug: Colchicine

Trial contacts and locations

3

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Data sourced from clinicaltrials.gov

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