Clinical trial Recruiting at 23 sites Phase 4 Interventional Ages 20 and up

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.

More Cerebral Infarction trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages20 Years and up
SexAll
Enrollment2340 (estimated)
SponsorAsan Medical Center
Academic / other
Locations24 sites (Seoul, Songpa-gu and 23 other locations)
StatusRecruiting
StartedJuly 10, 2025
Main results expectedMarch 31, 2028
Study endsMarch 31, 2028
Registry record updatedMarch 27, 2026
Trial IDNCT06757764 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

  • 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
  • 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

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.