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Not yet recruitingNCT06587737CoVasc-ICH2Updated Sep 1, 2026

Colchicine for the Reduction of Dependency and Vascular Events After an Acute Intracerebral Hemorrhage

A Phase 3 interventional study of Colchicine 0.5 MG and Placebo in Colchicine, ICH - Intracerebral Hemorrhage and Stroke, sponsored by Population Health Research Institute. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-01.

Sponsored by Population Health Research Institute · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
1,125
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Data indicate that patients with intracerebral hemorrhage (ICH) are at high risk for thromboembolic events and disability that is not being sufficiently mitigated by current treatment strategies. This is aggravated by the cessation of antithrombotic medications for significant periods after hemorrhage. These findings highlight the need for novel treatments that modify the high risk for major vascular events and functional outcomes in ICH survivors.

The objective of CoVasc-ICH 2 is to demonstrate that oral colchicine 0.5 mg daily is superior to placebo for improving the outcomes of ICH survivors with evidence or risk factors for atherosclerosis, when started within 72 hours from ICH onset.

02

Conditions studied

  • Colchicine
  • ICH - Intracerebral Hemorrhage
  • Stroke
  • Dependence
03

In context

Cerebral Hemorrhage

457 studies on the registry are indexed under Cerebral Hemorrhage; 172 are open to participants now.

This study's planned enrollment of 1,125 is above the median of 100 across 269 interventional studies indexed under Cerebral Hemorrhage.

Browse Cerebral Hemorrhage studies →

Lead sponsor

Population Health Research Institute is the lead sponsor of 115 studies on the registry; 26 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 1 (20%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
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

Adult patients presenting with spontaneous intraparenchymal hemorrhage within 72 hours of symptom onset and qualifying for at least one of the following categories:

i. history of symptomatic coronary, peripheral and/or carotid artery disease (severe atherosclerotic vascular disease), or ii. visualized extracranial cervical/intracranial atherosclerotic disease causing any degree of stenosis/occlusion or presence of aortic arch plaque with maximum thickness ≥1 mm (moderate atherosclerotic vascular disease), or iii. two or more risk factors including: age 60 years or older, hypertension, dyslipidemia, diabetes mellitus, chronic kidney disease (: 15-50mL/min), history of ischemic stroke or current smoking (mild atherosclerotic vascular disease).

Exclusion criteria

Exclusion Criteria:

  • secondary causes of ICH (such as trauma, macrovascular anomalies, neoplasms or bleeding diathesis)
  • ICH volume more than 60ml in the last imaging scan prior to consent
  • Glasgow Coma Scale (GCS) score less than 7 or being intubated at the time of consent
  • inflammatory bowel disease or chronic diarrhea
  • cirrhosis or severe hepatic dysfunction
  • renal insufficiency (\<15mL/min)
  • concurrent or planned treatment with strong inhibitors (atazanavir, clarithromycin, darunavir/ritonavir, indinavir, itraconazole, ketoconazole, lopinavir/ritonavir, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin, tipranavir/ritonavir) or P-gp inhibitors (cyclosporine, ranolazine)
  • pregnancy or breast-feeding
  • known allergy or sensitivity to colchicine
  • a strong indication for colchicine where assignment to placebo is deemed unacceptable
  • estimated less than 6 months at the time of enrollment, and
  • inability to adhere to study procedures
Terms in these criteria, in plain language(3)

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.

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.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
1,125 participants (estimated)

Study arms

  • Experimental
    colchicine 0.5mg OD

    Drug: Colchicine 0.5 MG

  • Placebo comparator
    placebo

    Drug: Placebo

Interventions

  • colchicine 0.5mg once-daily

  • DrugPlacebo

    matching placebo, lacking active ingredient, once-daily

06

What researchers measure

Primary outcomes

  1. Efficacy: MACE and Dependency

    Treatment with colchicine will reduce the risk for major adverse cardiovascular events (MACE) and dependency

    Time frame: through study completion, an average of 36 months

  2. Safety: Symptomatic hematoma expansion, major gastrointestinal adverse reactions or infection rates

    There will be no clinically-important change in symptomatic hematoma expansion, major gastrointestinal adverse reactions or infection rates with oral colchicine 0.5mg OD compared with matching placebo

    Time frame: through study completion, an average of 36 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Sep 2026; primary completion for Jul 2028, 22 months later.

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

Registered
Aug 29, 2024
First posted
Sep 19, 2024
StartEst.
Sep 30, 2026
Primary completionEst.
Jul 30, 2028
CompletionEst.
Oct 30, 2028
Last update
Sep 1, 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.
No changes since tracking began. The registry record was last updated on Sep 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06587737
Responsible party
Sponsor
First posted
Sep 19, 2024
Start date
Sep 30, 2026 (estimated)
Primary completion
Jul 30, 2028 (estimated)
Completion
Oct 30, 2028 (estimated)
Last update
Sep 1, 2026

Study contacts

Kevin W Reeh, MSc
Contact
CoVasc-ICH2@phri.ca
905-521-2100
Amanda Taylor, BSc
Contact
CoVasc-ICH2@phri.ca
Aristeidis Katsanos, MD
principal investigator · Population Health Research Institute, Hamilton Health Sciences, McMaster University
Ashkan Shoamanesh, MD
principal investigator · Population Health Research Institute, Hamilton Health Sciences, McMaster University

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Colchicine

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