Colchicine for the Stability of Coronary Plaque in Acute Coronary Syndrome (COLOCT)

NCT04848857 | Completed Phase 4

• 1 other identifier: CTACS202001
• Study Type: interventional
• Target: 128
• Locations: 1 country
• Sites: 1

Brief Summary

Evidence from the COLCOT Trial has shown that anti-inflammatory effect of colchicine reduced the risk of cardiovascular events in patients with recent myocardial infarction. We hypothesized that this might be due to the improvement of the coronary plaque stability by colchicine. Optical coherence tomography (OCT) is the most precise method to detect plaque stability in clinical practice. Thus, the purpose of this study is to evaluate the efficacy and safety of colchicine on improving the stability of coronary plaque in patients with acute coronary syndrome.

Conditions

Acute Coronary Syndrome

Outcome Measures

Primary Outcomes (1)

• changes of the Thickness of fibrous cap of coronary artery plaque

  changes of the thickness of fibrous cap of coronary artery plaque measured by OCT

  12 months

Secondary Outcomes (6)

• changes of the Average lipid arc of coronary artery plaque

  12 months

• changes of the Macrophage accumulation in coronary artery plaque

  12 months

• changes of the Incidence of thin-cap fibroatheroma (TCFA)

  12 months

• changes of the Minimum lumen area (MLA)

  12 months

• changes of the inflammatory biomarkers (hsCRP, IL-6, and MPO)

  12 months

Study Arms (2)

Treatment Group

EXPERIMENTAL

colchicine (0.5mg), one pill a day, oral intake

Drug: Colchicine

Control Group

PLACEBO COMPARATOR

placebo, one pill a day, oral intake

Drug: Placebo

Interventions

Colchicine DRUG

colchicine is a potent anti-inflammatory drug which is currently recommended for the treatment of pericarditis and acute gout attacks, but also familial Mediterranean fever and Behçet disease. This drug acts on inflammation through inhibition of microtubule polymerization by binding free tubule dimers. Colchicine blunts monocyte and neutrophil invasion at the site of inflammation and reduces intracellular trafficking and thus the release of cytokine and production of reactive oxygen species and a variety of proteolytic enzymes.

Treatment Group

Placebo DRUG

the placebo is a drug with no chemical effects but with the same physical characteristics as the experiment drug colchine.

Control Group

Eligibility Criteria

• Age: 18 Years - 80 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Participants who understand and sign the informed consent form voluntarily.
• Age ≥ 18 years old and ≤ 80 years old, regardless of sex.
• hospitalized patients diagnosed with acute coronary syndrome within 1 month.
• at least one non-culprit lesion with diameter stenosis percentage of 30% to 70% by visual estimation on coronary angiography (CAG) after completing any planned percutaneous revascularization.
• the lesion shown by OCT was lipid-rich plaque (Lipid pool arc \> 90 °).

You may not qualify if:

• Allergic to colchicine.
• Colchicine was taken within 10 days before randomization.
• Abnormal liver function (ALT \> 3 times the upper limit of normal value).
• Abnormal renal function (creatinine clearance rate \< 45 ml/min).
• Thrombocytopenia (PLT \< 100G/L).
• Uncontrolled infectious diseases during the screening period.
• Known immune diseases or immune-related diseases such as systemic lupus erythematosus, asthma, inflammatory bowel disease, gout, malignant tumor and so on.
• Pre-existing or plan for the administration of systemic anti-inflammatory treatments such as non-steroidal anti-inflammatory drugs, hormones, immunomodulatory and chemotherapeutic drugs.
• History of surgery or interventional therapy within 6 months prior to the screening period.
• A history of coronary artery bypass grafting or a plan for coronary artery bypass grafting within 1 year.
• Left main coronary disease (≥50% reduction in lumen diameter by angiographic visual estimation).
• Significant coronary calcification or tortuosity deemed to preclude OCT evaluation.
• Diagnosed with mental disorders such as anxiety or depression.
• Pregnant women, lactating women or women of childbearing age who do not use effective contraceptive methods.
• Participated in other clinical trials within 3 months before the screening period.

Sponsors & Collaborators

• Union Hospital, Tongji Medical College, Huazhong University of Science and Technology: lead

Study Sites (1)

Wuhan Union Hospital

Wuhan, Hubei, China

Location

Related Publications (1)

• Yu M, Yang Y, Dong SL, Zhao C, Yang F, Yuan YF, Liao YH, He SL, Liu K, Wei F, Jia HB, Yu B, Cheng X. Effect of Colchicine on Coronary Plaque Stability in Acute Coronary Syndrome as Assessed by Optical Coherence Tomography: The COLOCT Randomized Clinical Trial. Circulation. 2024 Sep 24;150(13):981-993. doi: 10.1161/CIRCULATIONAHA.124.069808. Epub 2024 Aug 21.

  PMID: 39166327 DERIVED

MeSH Terms

Conditions

Acute Coronary Syndrome

Interventions

Colchicine

Condition Hierarchy (Ancestors)

Myocardial Ischemia; Heart Diseases; Cardiovascular Diseases; Vascular Diseases

Intervention Hierarchy (Ancestors)

Alkaloids; Heterocyclic Compounds

Study Design

• Study Type: interventional
• Phase: phase 4
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, INVESTIGATOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: professor, director

Study Record Dates

• First Submitted: April 14, 2021
• First Posted: April 19, 2021
• Study Start: May 3, 2021
• Primary Completion: August 20, 2023
• Study Completion: October 5, 2023
• Last Updated: December 19, 2023

Record last verified: 2023-12

Locations

CN (1)