Combined antiplatelet treatment for acute ischemic stroke due to large artery atherosclerosis
Official title: The Effect and Safety of Therapy Adding Cilostazol in Acute Ischemic Stroke Due to Large Artery Atherosclerosis: CHANGE Trial
Run by Asan Medical Center · NCT06757764 · Data updated 2026-11-12
This trial sees if adding cilostazol to aspirin and clopidogrel for adults who recently had an ischemic stroke caused by large artery atherosclerosis lowers the risk of early recurrent stroke.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 20 Years and up |
| Sex | All |
| Enrollment | 2340 (estimated) |
| Sponsor | Asan Medical Center Academic / other |
| Locations | 24 sites (Seoul, Songpa-gu and 23 other locations) |
| Status | Recruiting |
| Started | July 10, 2025 |
| Main results expected | March 31, 2028 |
| Study ends | March 31, 2028 |
| Registry record updated | March 27, 2026 |
| Trial ID | NCT06757764 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 20 or older with an acute ischemic stroke due to intra- or extracranial large artery atherosclerosis (DWI-confirmed lesion and ≥50% stenosis on MR/CT angiography) who can give informed consent within 72 hours of symptom onset are the ideal candidates.
✕Probably not a fit
Patients with large infarctions preventing antiplatelet start, acute intracranial hemorrhage or hemorrhagic transformation, those indicated for anticoagulation, with contraindications to aspirin/clopidogrel/cilostazol, pre-stroke disability (mRS >2), planned surgery, or otherwise judged unable to participate are unlikely to benefit from this protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 4 randomized interventional trial enrolls adults within 72 hours of an acute ischemic stroke attributed to large artery atherosclerosis confirmed by diffusion-weighted MRI and ≥50% stenosis on MR or CT angiography. All participants receive standard aspirin plus clopidogrel and are randomized to receive either cilostazol or placebo in addition to dual antiplatelet therapy. Outcomes include early recurrent ischemic stroke, neurological deterioration, and safety endpoints such as hemorrhagic complications. The trial aims to determine whether adding cilostazol reduces early recurrence compared with placebo when combined with aspirin and clopidogrel.
Why it matters
Potential benefit: If successful, adding cilostazol could lower early recurrent strokes and reduce neurological deterioration in patients with large-artery atherosclerotic ischemic stroke.
How similar studies have gone: Prior trials (CHANCE, POINT) support short-term aspirin plus clopidogrel, and post-hoc analyses of CSPS.com suggest cilostazol may reduce subsequent stroke—particularly after 15 days and in large-artery disease—but randomized data combining cilostazol with clopidogrel in the acute phase are limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Age of 20 years or older 2. Acute ischemic stroke due to large artery atherosclerosis (both including Intra and extracranial atherosclerosis) which may be defined by a ischemic lesion confirmed at diffusion-weighted image and a corresponding significant stenosis (more than 50% of diameter reduction) proximal to the ischemic lesion confirmed by MR angiography or CT angiography. 3. Informed consent obtained within 72h from stroke onset 4. Acquisition of written informed consent prior to study entry Exclusion Criteria: 1. Large infarction unable to start antiplatelet treatment 2. Combined with acute intracranial haemorrhage 3. With initial haemorrhagic transformation 4. Previous mRS higher than 2 5. Indicated for anticoagulation 6. Contraindication for aspirin, clopidogrel or cilostazol 7. Requirement of long term NSAID 8. Pre-planned for surgery 9. Unable to withdraw consent 10. Unavailable to participate based on judgement of the investigator 11. Participants of reproductive potential (PORP)/ Participants of childbearing potential (POCBP) who do not agree to practice methods of birth control or remain fully abstinent from sexual activity with the potential for conception.
Where it's running
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Asan Medical Center
Seoul, Songpa-gu, South Korea Recruiting -
Pusan National University Hospital
Busan, South Korea Recruiting -
Chungbuk National University Hospital
Cheongju-si, South Korea Recruiting -
Kyungpook National University Chilgok Hospital
Daegu, South Korea Recruiting -
Chungnam National University Hospital
Daejeon, South Korea Recruiting -
Eulji University Hospital
Daejeon, South Korea Recruiting
Show 18 more locations
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Chonnam National University Hospital
Gwangju, South Korea Recruiting -
Seoul National University Bundang Hospital
Gyeonggi-do, South Korea Recruiting -
Hallym University Medical Center
Gyeonggi-do, South Korea Recruiting -
Hanyang University Guri Hospital
Gyeonggi-do, South Korea Recruiting -
Korea University Ansan Hospital
Gyeonggi-do, South Korea Recruiting -
Gachon University Gil Medical Center
Incheon, South Korea Recruiting -
Inha University Hospital
Incheon, South Korea Recruiting -
Jeju National University Hospital
Jeju City, South Korea Recruiting -
Jeonbuk National University Hospital
Jeonju, South Korea Recruiting -
Ewha Womans University Seoul Hospital
Seoul, South Korea Recruiting -
Hanyang University Seoul Hospital
Seoul, South Korea Recruiting -
Korea University Guro Hospital
Seoul, South Korea Recruiting -
Kyung Hee University Hospital at Gangdong
Seoul, South Korea Recruiting -
Kyung Hee University Hospital
Seoul, South Korea Recruiting -
Samsung Medical Center
Seoul, South Korea Recruiting -
The Catholic University of Korea, Seoul St. Mary's Hospital
Seoul, South Korea Recruiting -
Pusan National University Yangsan Hospital
Yangsan, South Korea Recruiting -
Yonsei University Health System, Gangnam Severance Hospital
Seoul, South Korea Not yet recruiting
Study contacts
- Study coordinator: Bum Joon Kim, Professor
- Email: bj.kim@amc.seoul.kr
- Phone: +82-2- 3010-3981
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.