Coronary disease & ACS

Effect of low-dose colchicine on pericoronary inflammation and coronary plaque composition in chronic coronary disease: a subanalysis of the LoDoCo2 trial

HeartPublished Secondary analysis of the LoDoCo2 randomised trial

Authors' conclusion

Pericoronary inflammation did not differ among participants who received low-dose colchicine compared with placebo. Low-dose colchicine was associated with a higher volume of calcified plaque, particularly dense calcified plaque, which is considered a feature of plaque stability.

Study context

Population
Patients with chronic coronary disease in LoDoCo2 undergoing CT angiography after median 28.2 months of treatmentLoDoCo2 n=5522
Participants
151 patients
Comparison
Low-dose colchicine vs placebo
Primary endpoint
Pericoronary adipose tissue (PCAT) attenuation and coronary plaque composition
Follow-up
Median treatment duration 28.2 months
Methodological detailscross-sectional, nationwide
  • Cross-sectional
  • Nationwide

Primary result

As reported in the abstract

Median PCAT attenuation

Colchicine

−79.5

median · Hounsfield units (HU)

Placebo

−78.7

median · HU

P = 0.236

Further findings

Calcified plaque volume · independent of statin therapy

P = 0.041

Dense calcified plaque volume

P = 0.048

Calcified plaque burden

P = 0.035

Low-attenuation plaque burden, by statin intensity (subgroup)

Lower with colchicine on low-intensity statin, not on high-intensity statin
  • pinteraction=0.037

Original publication

Effect of low-dose colchicine on pericoronary inflammation and coronary plaque composition in chronic coronary disease: a subanalysis of the LoDoCo2 trial. Heart. Published 19 May 2025. doi:10.1136/heartjnl-2024-325527

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