Colchicine for primary biliary cirrhosis: a Cochrane Hepato-Biliary Group systematic review of randomized clinical trials

Yan Gong, Christian Gluud
American Journal of Gastroenterology 2005, 100 (8): 1876-85

OBJECTIVES: Colchicine is used for patients with primary biliary cirrhosis due to its immunomodulatory and antifibrotic potential. The results from randomized clinical trials have, however, been inconsistent. We conducted a systematical review to evaluate the effect of colchicine for primary biliary cirrhosis.

METHODS: We identified randomized clinical trials comparing colchicine with placebo/no intervention. We analyzed effects by fixed and random effects model. We investigated heterogeneity by subgroup and sensitivity analyses.

RESULTS: We included 10 trials involving 631 patients, four of which were high-quality trials. No significant differences were detected between colchicine and placebo/no intervention regarding mortality (relative risk (RR), 1.21; 95% confidence interval (CI), 0.71-2.06), mortality or liver transplantation (RR = 1.00; 95% CI, 0.67-1.49), liver complications, liver biochemical variables, liver histology, or adverse events. Regarding mortality, an extreme case analysis favoring colchicine did not demonstrate beneficial effects of colchicine, whereas an extreme case analysis favoring placebo/no intervention demonstrated a detrimental effect of colchicine (RR = 2.28; 95% CI, 1.17-4.44). The number of patients without improvement of pruritus significantly decreased in the colchicine group (RR = 0.75; 95% CI, 0.65-0.87). However, this estimate was based on only 156 patients from three trials.

CONCLUSIONS: There is insufficient evidence to support the use of colchicine for patients with primary biliary cirrhosis. As we are unable to exclude a risk of increased mortality, we recommend to use colchicine only in randomized clinical trials.

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