ClinicalTrials.gg
RecruitingNCT05633810COLCOT-T2DUpdated Oct 6, 2026

COLchicine and Non-enteric Coated Aspirin in the Cardiovascular Outcomes Trial of Patients With Type 2 Diabetes

A Phase 3 interventional study of Aspirin and Aspirin Placebo in Diabete Type 2 and Cardiovascular Diseases, sponsored by Montreal Heart Institute. Recruiting at 39 sites in 8 countries. Open to participants aged 55 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-10-06.

Sponsored by Montreal Heart Institute · Phase 3, Interventional, and Prevention

From the registry’s dates

  • Started Dec 2022; still recruiting 3 years 10 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
10,000
Allocation
Randomized
Ages
55 Years to 80 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 414 studies in Diabetes Mellitus, Type 2 with a site in France — 36 open to participants now, 42 under way, 9 of them phase 3. Diabetes Mellitus, Type 2 · France.

Planned enrollment
8th of 336
10,000 · median 312
Started
2022
with 19 others
Phase 3
139 of 414
7 open now
Primary completion
2027-12
later than 18 of 41 live
Registered
375th of 414
by date

Among the 414 studies in Diabetes Mellitus, Type 2 with a site in France, this one is the 8th largest by planned enrollment of the 336 interventional ones that give a count, is one of 20 that started in 2022, is one of 139 in phase 3, reaches primary completion later than 18 of the 41 other live ones, and was the 375th registered.

Diabetes Mellitus, Type 2

10,371 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,406 are open to participants now.

This study's planned enrollment of 10,000 is above the median of 80 across 8,350 interventional studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Open to participants now

36 of the 414 studies in Diabetes Mellitus, Type 2 with a site in France are open now, in 12 countries. Each count lists the studies.

All 36 open studies →

Who these studies take

Of the 883 Diabetes Mellitus, Type 2 studies recruiting now, 373 (42%) set no upper age limit and 384 (43%) stop at 75 or younger; 52 take children under 18; 203 take healthy volunteers.

This study: 55 Years to 80 Years · all sexes · no healthy volunteers.

The full table on the hub →
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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 414 studies in Diabetes Mellitus, Type 2 with a site in France, or all of them as a file.
02

Study summary

To evaluate the efficacy and safety of colchicine and non-enteric coated aspirin, combined or alone, to improve cardiovascular outcomes in high-risk patients with type 2 diabetes.

03

Conditions studied

  • Diabete Type 2
  • Cardiovascular Diseases

Keywords

  • Diabetes (Type 2)
  • Heart Disease
04

Who can participate

Ages eligible
55 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Men and women aged 55 to 80 years
  2. Type 2 diabetes treated as per national guidelines
  3. No previous history of coronary artery disease-related clinical event
  4. And at least one of the following:

    1. Duration of diabetes of 5 years or more,
    2. ≥ 8.0% or more in the last 2 years
    3. Active cigarette smoking,
    4. High hs-CRP (> 2.0 mg/L),
    5. High coronary calcium score (Agatston score >100),
    6. High TG-levels (≥1.7 mmol/L) despite lipid lowering therapy administered as per guidelines,
    7. High LDL-C levels (≥3.5 mmol/L) or high non-HDL-C levels (≥4.2 mmol/L) despite lipid lowering therapy administered as per guidelines
    8. High Apo-B (≥1.05 g/L)
    9. Reduced HDL-C (\<1.05 mmol/L in men, \<1.3 mmol/L in women),
    10. Lp(a) >50 mg/dL,
    11. Peripheral artery disease with stenosis ≥50% or prior revascularization,
    12. Cerebrovascular disease with stenosis ≥50% or prior revascularization,
    13. Diabetic retinopathy or diabetic neuropathy,
    14. Mild or moderate proteinuria (dipstick analysis) or micro-albuminuria
  5. Women of must have a negative urine pregnancy test at screening/randomization visit 1 and must agree to use an effective method of throughout the study. Acceptable means of birth control include: oral contraceptives, implantable contraceptives, injectable contraceptives, transdermal contraceptives, intrauterine devices, male or female condoms with spermicide, abstinence, or a sterile sexual partner.

    Women are considered not of childbearing potential if they either:

    1. Have had a hysterectomy or tubal ligation prior to baseline visit or
    2. Are defined as no menses for 12 months or a FSH level (if available) in the menopausal range.
  6. Patients with the capacity to provide .

Exclusion criteria

Exclusion Criteria:

  1. Any prior history of myocardial infarction, angina, coronary revascularization, coronary stenosis >30%, stroke, , or known heart failure
  2. Known chronic renal insufficiency defined as an estimated (eGFR), using the MDRD equation, of \< 35 mL/min/1.73m2
  3. History of cancer or lymphoproliferative disease within the last 3 years other than a successfully treated non- cutaneous squamous cell or basal cell carcinoma and/or localized carcinoma in situ of the cervix and/or low-grade prostate cancer
  4. Inflammatory bowel disease (Crohn's disease or ulcerative colitis) or chronic diarrhea
  5. Peptic ulcer diagnosed within the last 24 months or previous gastro-intestinal bleeding, except for mild hemorrhoidal bleeding more than 5 years ago which is permitted (patients meeting this exclusion criterion will not be randomized to receive aspirin or placebo but can be randomized to receive colchicine or placebo)
  6. Pre-existent progressive neuromuscular disease or known CPK level > 3 times the as measured within the past 30 days and determined to be non-transient through repeat testing
  7. Any of the following known parameters as measured within the past 90 days, and determined to be non-transient through repeat testing:

    1. \< 100 g/L
    2. 2. white blood cell count \< 3.0 X 10⁹/L
    3. count \<110 X 10⁹/L
    4. > 3 times the upper limit of normal (ULN)
    5. total > 2 times ULN (unless due to Gilbert syndrome, which is allowed)
  8. History of cirrhosis, chronic active hepatitis or severe hepatic disease
  9. Female patient who is pregnant, or breast-feeding or is considering becoming pregnant during the study or for 6 months after the last dose of study medication
  10. History of drug or alcohol abuse in the last year
  11. Patient is currently using or plans to begin chronic systemic therapy (oral or intravenous) during the study (topical or inhaled steroids are allowed, as well as replacement corticosteroids for adrenal insufficiency)
  12. Current chronic treatment with aspirin or another antiplatelet agent (patients meeting this exclusion criterion will not be randomized to receive aspirin or placebo but can be randomized to receive colchicine or placebo)
  13. Chronic treatment with an anticoagulant agent (patients meeting this exclusion criterion will not be randomized to receive aspirin or placebo but can be randomized to receive colchicine or placebo)
  14. Current use of colchicine for other indications (mainly chronic indications consisting of Familial Mediterranean Fever or gout); there is no required for patients who have been treated with colchicine and stopped treatment prior to enrolment
  15. History of an allergic reaction or significant sensitivity to colchicine
  16. History of an allergic reaction or significant sensitivity to aspirin (patients meeting this exclusion criterion will not be randomized to receive aspirin or placebo but can be randomized to receive colchicine or placebo)
  17. Chronic treatment with an anti-inflammatory agent (for example, anti-TNF-alpha or nonsteroidal anti-inflammatory drug (NSAID))
  18. Use of an chemical agent less than 30 days or 5 half-lives prior to the screening visit (whichever is longer)
  19. Patient is considered by the investigator, for any reason, to be an unsuitable candidate for the study.
Terms in these criteria, in plain language(17)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
10,000 participants (estimated)

Study arms

  • Active comparator
    Anti-thrombotic arm

    For patients eligible for aspirin therapy arm.

    Drug: Aspirin · Drug: Aspirin Placebo · Drug: Colchicine · Drug: Colchicine Placebo

  • Placebo comparator
    Anti-thrombotic arm (Placebo)

    For patients eligible for aspirin therapy arm.

    Drug: Aspirin · Drug: Aspirin Placebo · Drug: Colchicine · Drug: Colchicine Placebo

  • Active comparator
    Anti-inflammatory arm

    For patients ineligible for aspirin therapy arm.

    Drug: Colchicine · Drug: Colchicine Placebo

  • Placebo comparator
    Anti-inflammatory arm (Placebo)

    For patients ineligible for aspirin therapy arm.

    Drug: Colchicine · Drug: Colchicine Placebo

Interventions

  • 40 mg non-enteric-coated tablet taken twice daily.

  • DrugAspirin Placebo

    non-enteric-coated tablet taken twice daily.

  • 0.5 mg tablet taken once daily

  • DrugColchicine Placebo

    tablet taken once daily.

06

What researchers measure

Primary outcomes

  1. First event of the composite of cardiovascular death, resuscitated cardiac arrest, non-fatal myocardial infarction, non-fatal stroke, or urgent hospitalization for angina requiring coronary revascularization.

    The number of participants having at least one of the composite of the primary endpoint.

    Time frame: From randomization to occurrence of first event, assessed up to 60 months.

Secondary outcomes

  1. Cardiovascular Death

    The number of participants having a cardiovascular death.

    Time frame: From randomization to cardiovascular death, assessed up to 60 months.

  2. First Event of Resuscitated Cardiac Arrest

    The number of participants having at least 1 resuscitated cardiac arrest.

    Time frame: From randomization to event, assessed up to 60 months.

  3. First Event of Non-fatal Myocardial Infarction

    The number of participants having at least 1 myocardial infarction.

    Time frame: From randomization to event, assessed up to 60 months.

  4. First Event of Non-fatal Stroke

    The number of participants having at least 1 stroke.

    Time frame: From randomization to event, assessed up to 60 months

  5. First Occurrence of Urgent Hospitalization for Angina Requiring Coronary Revascularization

    The number of participants having at least 1 urgent hospitalization for angina requiring coronary revascularization.

    Time frame: From randomization to occurrence, assessed up to 60 months.

  6. First Event of Atrial Fibrillation

    The number of participants having at least 1 atrial fibrillation.

    Time frame: From randomization to event, assessed up to 60 months.

  7. First Occurrence of Heart Failure Hospitalization

    The number of participants having at least 1 heart failure hospitalization.

    Time frame: From randomization to occurrence, assessed up to 60 months.

  8. First Occurrence of Coronary Revascularization

    The number of participants having at least 1 coronary revascularization.

    Time frame: From randomization to occurrence, assessed up to 60 months.

  9. MoCA Scores Assessed Over Time

    Change from randomization in MoCA score at yearly follow-ups (excluding the first-year visit) until the end-of-study visit.

    Time frame: From randomization to yearly follow-ups until the end-of-study visit, assessed up to 60 months.

07

Study locations

39 of 39 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Dec 2022 (actual). Primary completion is estimated for Dec 2027, 60 months after the start.

Of 87 non-industry phase 3 interventional studies under Diabetes Mellitus, Type 2, half reached primary completion within 31 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 47. This study's planned 60 months is above that.

Counting every sponsor, half of 525 studies reached it within 20 months; a quarter within 14 and three quarters within 30.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 11, 2022
First posted
Dec 1, 2022
StartActual
Dec 21, 2022
Primary completionEst.
Dec 2027
CompletionEst.
Dec 2027
Last update
Oct 6, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Minor edits
Nothing that changes what the study is or who can join. Edited: verification date
1 update, last Oct 6, 2026
Show all 1 update
  1. Oct 6, 2026
    Minor edits only
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT05633810
Responsible party
Sponsor
First posted
Dec 1, 2022
Start date
Dec 21, 2022
Primary completion
Dec 2027 (estimated)
Completion
Dec 2027 (estimated)
Last update
Oct 6, 2026

Study contacts

Jean-Claude Tardif, MD, FRCPC, FACC, FCAHS
Contact
Jean-Claude.Tardif@icm-mhi.org
514-376-3330 ext. 3612
Mylène Provencher, PhD
Contact
Mylene.Provencher@mhicc.org
514-461-1300 ext. 2133

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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