Effect of colchicine on C-reactive protein level following hospitalization for myocardial infarction: a meta-analysis of randomized, placebo-controlled trials.

BACKGROUND

C-reactive protein (CRP) is a biomarker of vascular inflammation with prognostic value for future cardiovascular events. This meta-analysis investigates the effect of colchicine, a cheap and widely available anti-inflammatory medication, on CRP levels in the months following myocardial infarction (MI).

METHODS

PubMed, EMBASE, and Cochrane were queried from inception to April 2026 to identify randomized controlled trials comparing colchicine to placebo for at least 1 month following MI. The primary outcome was mean CRP level at follow-up. Effect estimates were pooled with random-effects models and reported as mean differences for continuous variables using 95% confidence intervals.

RESULTS

Four studies met inclusion criteria comprising 3384 patients (mean age 60.7 years; 78.3% male), including 1669 patients randomized to the colchicine arm, and 1715 to placebo. Median follow-up period was 3 months (range: 1-6 months). Colchicine following MI resulted in a statistically significant decrease in mean CRP level (mg/L) at follow-up versus placebo (MD: -0.69; [-1.21, -0.17], p = 0.009). Heterogeneity of effect size estimates was high (I2 = 97%).

CONCLUSION

Daily colchicine following MI decreases CRP at a median follow-up period of 3 months compared to placebo. The correlation between CRP reduction with colchicine and adverse cardiovascular event reduction warrants additional study.