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Cerebral InfarctionPhase 4CHANGENCT06757764

The Effect and Safety of Combined Anti-platelet Treatment in Acute Ischemic Stroke Due to Large Artery Atherosclerosis

A Phase 4 study testing Aspirin, Clopidogrel and Cilostazol in people with Cerebral Infarction and Stenosis Artery, run by Asan Medical Center at 24 sites in South Korea.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

Currently, aspirin plus clopidogrel is considered as a standard acute treatment of ischemic stroke, based on results of CHANCE and POINT trial. However, still a considerable portion of patients showed early stroke recurrence, especially in those with stroke due to large artery atherosclerosis. Read more about this study

Who is it for?
Ages 20 years and older
Conditions the study is for
Cerebral Infarction, Stenosis Artery
What is being tested?
Aspirin, Clopidogrel and Cilostazol
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
2,340 participants
Where
24 sitesSouth Korea
Study dates
10 Jul 2025to 31 Mar 2028
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age of 20 years or older
  • 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.
  • Informed consent obtained within 72h from stroke onset
  • Acquisition of written informed consent prior to study entry

Who cannot join

  • Large infarction unable to start antiplatelet treatment
  • Combined with acute intracranial haemorrhage
  • With initial haemorrhagic transformation
  • Previous mRS higher than 2
  • Indicated for anticoagulation
  • Contraindication for aspirin, clopidogrel or cilostazol
Show all 11Show fewer
  • Requirement of long term NSAID
  • Pre-planned for surgery
  • Unable to withdraw consent
  • Unavailable to participate based on judgement of the investigator
  • 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.

Trial locations and contacts

24 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Bum Joon Kim, Professor contact

+82-2- 3010-3981

bj.kim@amc.seoul.kr

24 sites in 1 country

South Korea24 sites, 24 recruiting
  • Pusan National University Hospital

    Busan

    Hanjun Cho, +82-51-240-7000, chohj75@gmail.com

    Recruiting
  • Chungbuk National University Hospital

    Cheongju-si

    Hee-yoon Chae, MD, PhD, +82-1533-0075, chy4142@gmail.com

    Recruiting
  • Kyungpook National University Chilgok Hospital

    Daegu

    Mi-Yeon Eun, MD, PhD, +82-1533-8888, eunmiyn@gmail.com

    Recruiting
  • Chungnam National University Hospital

    Daejeon

    Jong Wook Shin, MD, PhD, +82-1599-7123, jeonghs1028@gmail.com

    Recruiting
  • Eulji University Hospital

    Daejeon

    Jae Guk Kim, MD, PhD, +82-1899-0001, jgkim@eulji.ac.kr

    Recruiting
  • Chonnam National University Hospital

    Gwangju

    Kang-Ho Choi, MD, PhD, +82-1899-0000, ckhchoikang@hanmail.net

    Recruiting
  • Seoul National University Bundang Hospital

    Gyeonggi-do, 13620

    Beom Joon Kim, MD, PhD, +82-1588-3369, kim.bj.stroke@gmail.com

    Recruiting
  • Hallym University Medical Center

    Gyeonggi-do

    Minwoo Lee, MD, PhD, +82-1577-1801, minwoo.lee.md@gmail.com

    Recruiting
  • Hanyang University Guri Hospital

    Gyeonggi-do

    Hyuk Sung Kwon, MD, PhD, +82-1644-9118, hamohamo1318@gmail.com

    Recruiting
  • Korea University Ansan Hospital

    Gyeonggi-do

    Jin-Man Jung, MD, PhD, +82-31-412-5114, sodium75@hanmail.net

    Recruiting
  • Gachon University Gil Medical Center

    Incheon, 21565

    SangHee Ha, MD, PhD, +82-1577-2299, shha31@naver.com

    Recruiting
  • Inha University Hospital

    Incheon

    Cindy W Yoon, MD, PhD, +82-1600-8114, cindywyoon1981@gmail.com

    Recruiting
  • Jeju National University Hospital

    Jeju City

    Joong Goo Kim, MD, PhD, +82-64-717-1114, lilis1118@naver.com

    Recruiting
  • Jeonbuk National University Hospital

    Jeonju

    Hyun Goo Kang, MD, PhD, +82-1577-7877, hgkang@jbnu.ac.kr

    Recruiting
  • Asan Medical Center

    Seoul, Songpa-gu, 05505

    Bum Joon Kim, MD, PhD, +82-2-3010-3981, medicj80@hanmail.net

    Recruiting
  • Ewha Womans University Seoul Hospital

    Seoul

    Tae-Jin Song, MD, PhD, +82-1522-7000, knstar@hanmail.net

    Recruiting
  • Hanyang University Seoul Hospital

    Seoul

    Youngseo Kim, MD, PhD, +82-2-2290-8114, aescula@hanmail.net

    Recruiting
  • Korea University Guro Hospital

    Seoul

    Chi Kyung Kim, MD, PhD, +82-1577-9966, ckkim7@gmail.com

    Recruiting
  • Kyung Hee University Hospital at Gangdong

    Seoul

    Kyung Chul Noh, MD, PhD, +82-1577-5800, kyungchulnoh85@gmail.com

    Recruiting
  • Kyung Hee University Hospital

    Seoul

    Hogeol Woo, MD, PhD, +82-2-958-8114, nr85plasma@gmail.com

    Recruiting
  • Samsung Medical Center

    Seoul

    Woo Keun Seo, MD, PhD, +82-1599-3114, mcastenosis@gmail.com

    Recruiting
  • The Catholic University of Korea, Seoul St. Mary's Hospital

    Seoul

    Minhwan Lee, MD, PhD, +82-1588-1511, prelee01@naver.com

    Recruiting
  • Yonsei University Health System, Gangnam Severance Hospital

    Seoul

    Yo Han Jung, MD, PhD, +82-1599-6114, yhjung@yuhs.ac

    Not yet recruiting
  • Pusan National University Yangsan Hospital

    Yangsan

    Sungho Ahn, MD, PhD, +82-1577-7512, caesar-ahn@hanmail.net

    Recruiting

Other trials in South Korea

About this study

Official title: The Effect and Safety of Therapy Adding Cilostazol in Acute Ischemic Stroke Due to Large Artery Atherosclerosis: CHANGE Trial

Currently, aspirin plus clopidogrel is considered as a standard acute treatment of ischemic stroke, based on results of CHANCE and POINT trial. However, still a considerable portion of patients showed early stroke recurrence, especially in those with stroke due to large artery atherosclerosis. Cilostazol may have benefit in reducing early stroke recurrence of neurologic deterioriation. The post-hoc analysis of CSPS.com showed that use of cilostazol after 15 days of stroke was effective for preventing subsequent stroke. The effect of adding cilostazol was more effective in those with large artery atherosclerosis and those receiving clopidogrel than aspirin.

Being tested
Aspirin, Clopidogrel, Cilostazol, Placebo
Medical subject headings
Cerebral Infarction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AspirinDrug

    Aspirin 100mg qd (21days)

    • In case of stenting, aspirin will be added to cilostazol and clopidogrel until 90 days after stenting.
    • Route: per oral. IMP can be taken with or without food.
    • Frequency: once daily (qd)
  • ClopidogrelDrug

    Clopidogrel 75mg qd (180days)

    • Route: per oral. IMP can be taken with or without food.
    • Frequency: once daily (qd)
  • CilostazolDrug

    Cilostazol SR 100mg x 2cap (180days)

    • Route: per oral. IMP can be taken with or without food.
    • Frequency: once daily (qd)
  • PlaceboDrug

    Placebo x 2cap (180days)

    • Route: per oral. IMP can be taken with or without food.
    • Frequency: once daily (qd)
Study groups in NCT06757764
Study groupRoleWhat they receive
CA groupExperimentalAspirin 100mg qd (21days), clopidogrel 75mg qd (180days), Cilostazol SR 100mg x 2cap (180days). In case of stenting, aspirin will be added to cilostazol and clopidogrel until 90 days after stenting.
Receives: Drug: Aspirin; Drug: Clopidogrel; Drug: Cilostazol
PA groupPlacebo comparatorAspirin 100mg (21days), clopidogrel 75mg qd (180days), Placebo x 2cap (180days). In case of stenting, aspirin will be added to placebo and clopidogrel until 90 days after stenting.
Receives: Drug: Aspirin; Drug: Clopidogrel; Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of occurrence of composite endpoint

    *Composite endpoint: Neurologic deterioration† during admission (within 14 days) or recurrence of ischemic stroke‡ within 180 days after stroke

    †Neurologic deterioration: Increment of 2 or more in total NIHSS(National Institutes of Health Stroke Scale) score or one or more in the motor NIHSS score.

    ‡Recurrence of ischemic stroke: A newly developed neurological deficit corresponding to a new ischemic lesion confirmed by neuro-imaging.

    Measured: during admission (within 14 days) and within 180 days after stroke

Secondary outcomes (11)
  1. Proportion of participants with good functional outcome (mRS(modified Rankin Scale) 0-2)

    Measured: at 180 days

  2. mRS score collected at 180 days

    Measured: at 180 days

  3. Proportion of participants with Neurologic Deterioration(ND) during admission

    Measured: during admission(within 14days)

  4. Proportion of participants with good functional outcome (mRS 0-2)

    Measured: at 90 days

  5. Proportion of participants with ischemic stroke recurrence

    Measured: at 90 days

  6. Proportion of participants with ischemic stroke recurrence

    Measured: at 180 days

  7. Proportion of participants with MI(Myocardial Infarction), ischemic stroke recurrence, haemorrhagic stroke and vascular death

    Measured: within 180 days

  8. Proportion of participants with haemorrhagic stroke

    Measured: within 180 days

  9. Proportion of participants with myocardial infarction

    Measured: within 180 days

  10. Proportion of participants with vascular death

    Measured: within 180 days

  11. mRS score collected at 90 days

    Measured: at 90 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Jan 2025
  2. Study start10 Jul 2025
  3. Primary completion31 Mar 2028 (estimated)
  4. Study completion31 Mar 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
2,340 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06757764
Sponsor's protocol ID
CHANGE
Acronym
CHANGE
Status last verified
Mar 2026
First submitted
26 Dec 2024
Last updated
27 Mar 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Aspirin, Clopidogrel and Cilostazol in people with Cerebral Infarction and Stenosis Artery, run by Asan Medical Center at 24 sites in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 27 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 24 sites in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Bum Joon Kim, Professor (+82-2- 3010-3981, bj.kim@amc.seoul.kr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of occurrence of composite endpoint (time frame: during admission (within 14 days) and within 180 days after stroke). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Mar 2026.

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