Could a Two-Pill combo cut stroke recurrence?
NCT ID NCT06638151
First seen Jun 25, 2026 · Last updated Jul 17, 2026 · Updated 3 times
Summary
After a stroke, patients are at high risk of having another one, especially in the first 21 days. This study tests whether adding clopidogrel to the standard aspirin treatment is safe and feasible for preventing a second stroke. About 200 patients who had a mild to moderate stroke will be randomly assigned to take either aspirin alone or aspirin plus clopidogrel for 21 days, then followed for three months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- aspirin and clopidogrel (antiplatelet medications)
- What this could lead to
- If successful, this could show that a short course of dual antiplatelet therapy is a safe and effective way to reduce the risk of a second stroke in the first three weeks after treatment.
- What could go wrong
- This is a small, early-phase pilot study, so results may not be conclusive. The main risk is bleeding, and the study only includes patients with mild to moderate strokes, so findings may not apply to everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
3 people
The number who actually took part.
- Started
-
Sep 2025
- Finished
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Jul 2026
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 years and older
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Participants must be \>18 years of age at the time of randomization 2. Acute non-cardioembolic ischemic stroke in the anterior circulation treated with reperfusion therapy defined as intravenous thrombolysis (IVT) and/or endovascular thrombectomy (EVT) 3. Time from end of acute reperfusion therapy to randomization ≤ 24 hours 4. Mild to moderate deficit defined as a National Institute of Health stroke scale of ≤11 at the time of randomization 5. At least one non-contrast CT scan completed post reperfusion therapy and prior to randomization without any hemorrhage (including hemorrhagic infarction) and/or contrast extravasation. 6. Premorbid mRS less than or equal to 2 7. Signed informed consent from the patient or legally authorized representative Exclusion Criteria: 1. Any known disorder associated with a significantly increased risk of bleeding 2. Post-reperfusion CT scan ASPECT score \<8. 3. Anticoagulation is required for any indication other than DVT prophylaxis 4. Evidence-based indication for dual antiplatelet therapy 5. Planned surgical intervention in the next 90 days includes but is not limited to carotid endarterectomy, where dual antiplatelet is not indicated, and carotid stenting, where single antiplatelet is not used. 6. History of intracranial or subarachnoid hemorrhage 7. Intracranial tumour, arteriovenous malformation or aneurysm; 8. Intracranial or spinal cord surgery within three months; 9. Gastrointestinal or urinary tract hemorrhage within the previous 21 days; 10. Coagulation disorder, thrombocytopenia \<100, 000/mm3, and Prothrombin time INR ≥1.8 11. Index stroke is caused by infective endocarditis, dissection, systematic or central nervous system vasculitis 12. History of active malignancy being treated or life expectancy ≤ 90 days 13. Allergy to clopidogrel or aspirin 14. Pregnancy 15. Participation in another clinical trial. 16. The presence of a major co-morbid illness that would make it unlikely that the participant will be able to complete follow-up
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
University of Alberta Hospital
Edmonton, Alberta, T6G2B7, Canada
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