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Ischemic Stroke4SNCT07171242

Shanghai Prospective Registry Study of Ischemic Stroke

An observational study of Ischemic Stroke, run by Qiang Dong at 1 site in China.

Recruiting

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

Sites and contacts
Official record
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Trial summary

This study aims to conduct a prospective cohort study on patients with imaging-confirmed ischemic stroke based on the 4S database. The primary objectives are to investigate the incidence, clinical characteristics, risk factors, and pathophysiological mechanisms of young-onset stroke, as well as to analyze the evolving… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Ischemic Stroke
How many people
15,000 participants
Where
1 siteChina
Study dates
1 Dec 2024to 31 Dec 2029
Phase
Observational
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients aged 18 years or older diagnosed with acute or subacute ischemic stroke

Who may be able to join

  • Patients aged 18 years or older diagnosed with acute or subacute ischemic stroke
  • The diagnosis of stroke must be confirmed through clinical assessment and imaging examinations
  • In cases where imaging examinations are negative or unavailable, the clinical diagnosis of stroke must be confirmed by an experienced neurologist. (4)Patients must sign an informed consent form agreeing to the collection of information.

Who cannot join

  • The amount of missing data exceeds 40% of the data to be entered;
  • After enrollment, it is discovered that the study participant does not meet the inclusion criteria or meets any of the exclusion criteria;
  • Missing persons

Trial locations and contacts

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

Qiang Dong, Professor contact

+8613701747065

qiang_dong163@163.com

China1 site, 1 recruiting
  • Huashan hospital Fudan University

    Shanghai, Shanghai Municipality, 200040

    Qiang Dong, Professor, +8613701747065, qiang_dong163@163.com

    Recruiting

Other trials in China

About this study

This study aims to conduct a prospective cohort study on patients with imaging-confirmed ischemic stroke based on the 4S database. The primary objectives are to investigate the incidence, clinical characteristics, risk factors, and pathophysiological mechanisms of young-onset stroke, as well as to analyze the evolving trends in the etiology of young-onset stroke in the Shanghai region over recent years. This includes examining the roles of traditional risk factors (such as hypertension and diabetes) and emerging factors (such as air pollution and lifestyle changes), and exploring the associations between these factors and patient outcomes. Additionally, the study will analyze the association between reperfusion therapies such as intravenous thrombolysis, acute-phase management, and secondary prevention with clinical outcomes. Finally, it will delve into the screening, treatment, and challenges associated with genetic young stroke patients with Farby syndrome, providing comprehensive information for regional stroke prevention and control strategies targeting young stroke patients.

Read the detailed description

This study is designed as a prospective cohort investigation utilizing data from the 4S database, focusing specifically on patients with imaging-confirmed ischemic stroke who are classified as having young-onset stroke (typically defined as occurring in individuals under 55 years of age). The purpose is to provide a thorough understanding of stroke in younger populations within the Shanghai region through collecting relevant clinical information of patients.

Conditions
Ischemic Stroke
Keywords
ischemic stroke
Medical subject headings
Ischemic Stroke

What participants receive

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

Study groups in NCT07171242
Study groupRoleWhat they receive
acute ischemic stroke groupCollect basic clinical information about patients, including age, gender, medical history, etc.

What is being measured

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

  1. Patient general information

    Name, age, gender, place of residence, date of admission, name of hospital, hospital grade, TOAST classification

    Measured: Upon admission

  2. Risk factors (assessed by medical history review and clinical evaluation)

    The presence (Yes) or absence (No) of each listed risk factor will be determined for each participant through medical history review and clinical evaluation:Smoking, hypertension, atrial fibrillation, hyperlipidemia, diabetes, history of cerebral infarction, myocardial infarction, other heart diseases, dementia, chronic obstructive pulmonary disease, history of bleeding or bleeding tendency

    Measured: Upon admission

  3. Pre-illness medication history(assessed by medical history review)

    The use of the following pre-illness medication categories, as confirmed by medical history review upon admission, will be recorded as a binary outcome (Yes/No) for each participant: antihypertensive drugs, antidiabetic drugs, lipid-lowering drugs, anticoagulants, antiplatelet drugs.

    Measured: Upon admission

  4. Baseline National Institutes of Health Stroke Scale (NIHSS) Score

    The severity of neurological deficit will be assessed using the National Institutes of Health Stroke Scale (NIHSS) upon admission. The NIHSS is a 15-item neurologic examination stroke scale with scores ranging from 0 to 42, where higher scores indicate more severe neurological deficit.

    Measured: Upon admission

  5. Pre-Stroke Modified Rankin Scale (mRS) Score

    Functional ability prior to stroke admission will be assessed using the Modified Rankin Scale (mRS). The mRS is a 6-point disability scale ranging from 0 (no symptoms) to 5 (severe disability), with a separate score of 6 indicating death. Higher scores indicate worse functional outcome.

    Measured: Prior to stroke admission (assessed upon current admission)

  6. Time Metrics from Symptom Onset to Hospital Presentation

    The following time points will be recorded to determine delays in presentation: time when the patient was last known to be at their normal neurological baseline, time of symptom onset, and time of arrival at the hospital.

    Measured: Upon admission

  7. Number of Participants Undergoing Reperfusion Therapy

    The administration of specific reperfusion therapies during hospitalization will be recorded as a binary outcome (Yes/No) for each participant. Therapies include: intravenous thrombolysis and endovascular treatment (mechanical thrombectomy). Determination will be made through review of medical records and procedure documentation.

    Measured: Within 24 hours of admission

  8. Number of Participants With Baseline Neuroimaging Findings

    The presence of findings on baseline neuroimaging (CT or MRI) performed at admission will be recorded. This includes the presence of cerebral small vessel disease manifestations (e.g., white matter hyperintensities, lacunes) and the location and degree of large vessel occlusion/stenosis.

    Measured: At admission (within 24 hours of hospitalization)

  9. Number of Participants With Cardiac Evaluation Findings

    Results from cardiac evaluations performed during hospitalization will be recorded as binary outcomes (normal/abnormal). Assessments include: echocardiogram (cardiac ultrasound), electrocardiogram (ECG), 24-hour Holter monitoring, and bubble test (for patent foramen ovale detection).

    Measured: Within 7 days of admission

  10. Modified Rankin Scale (mRS) Score at Discharge

    Functional outcome at discharge will be assessed using the Modified Rankin Scale (mRS). The mRS is a 7-point disability scale ranging from 0 (no symptoms) to 6 (death), where higher scores indicate worse functional outcome.

    Measured: Day 7 post-stroke (or at discharge if earlier)

  11. Discharge Diagnosis

    The primary diagnosis documented in the medical record at the time of hospital discharge will be recorded.

    Measured: Day 7 post-stroke (or at discharge if earlier)

  12. Length of Hospital Stay

    The duration of hospitalization, calculated as the number of days from admission to discharge.

    Measured: Up to 30 days (from admission to discharge,this will be calculated from admission to discharge for each participant)

Timeline

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

  1. First posted12 Sep 2025
  2. Study start1 Dec 2024
  3. Primary completion31 Dec 2029 (estimated)
  4. Study completion31 Dec 2029 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
15,000 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07171242
Sponsor's protocol ID
KY2024-1385
Acronym
4S
Status last verified
Sep 2025
First submitted
25 Aug 2025
Last updated
12 Sep 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Yaghi S, Henninger N, Giles JA, Leon Guerrero C, Mistry E, Liberman AL, Asad D, Liu A, Nagy M, Kaushal A, Azher I, Mac Grory B, Fakhri H, Brown Espaillat K, Pasupuleti H, Martin H, Tan J, Veerasamy M, Esenwa C, Cheng N, Moncrieffe K, Moeini-Naghani I, Siddu M, Scher E, Trivedi T, Furie KL, Keyrouz SG, Nouh A, de Havenon A, Khan M, Smith EE, Gurol ME. Ischaemic stroke on anticoagulation therapy and early recurrence in acute cardioembolic stroke: the IAC study. J Neurol Neurosurg Psychiatry. 2021 Oct;92(10):1062-1067. doi: 10.1136/jnnp-2021-326166. Epub 2021 Apr 26.

    PubMed 33903185
  • Brouwer J, Smaal JA, Emmer BJ, de Ridder IR, van den Wijngaard IR, de Leeuw FE, Hofmeijer J, van Zwam WH, Martens JM, Roos YBWEM, Majoie CB, van Oostenbrugge RJ, Coutinho JM; MR CLEAN Registry Investigatorsdagger. Endovascular Thrombectomy in Young Patients With Stroke: A MR CLEAN Registry Study. Stroke. 2022 Jan;53(1):34-42. doi: 10.1161/STROKEAHA.120.034033. Epub 2021 Dec 7.

    PubMed 34872339
  • Shu L, Akpokiere F, Mandel DM, Field TS, Leon Guerrero CR, Henninger N, Muppa J, Affan M, Haq Lodhi OU, Heldner MR, Antonenko K, Seiffge DJ, Arnold M, Salehi Omran S, Crandall R, Lester E, Lopez-Mena D, Arauz A, Nehme A, Boulanger M, Touze E, Sousa JA, Sargento-Freitas J, Barata V, Castro-Chaves P, Brito MT, Khan M, Mallick D, Rothstein A, Khazaal O, Kaufmann JE, Engelter ST, Traenka C, Aguiar de Sousa D, Soares MD, Rosa SB, Zhou L, Gandhi P, Mancini S, Metanis I, Leker RR, Pan K, Dantu V, Baumgartner K, Burton TM, Von Rennenberg R, Nolte CH, Choi R, MacDonald J, Bavarsad Shahripour R, Guo X, Ghannam M, Almajali M, Samaniego EA, Rioux B, Zine-Eddine F, Poppe A, Fonseca AC, Baptista MF, Cruz D, Romoli M, De Marco G, Longoni M, Keser Z, Griffin KJ, Kuohn L, Frontera JA, Amar JY, Giles JA, Zedde M, Pascarella R, Grisendi I, Nzwalo H, Liebeskind DS, Molaie A, Cavalier A, Kam W, Mac Grory B, Al Kasab S, Anadani M, Kicielinski KP, Eltatawy A, Chervak L, Chulluncuy Rivas R, Aziz YN, Mistry EA, Bakradze E, Tran TL, Rodrigo-Gisbert M, Requena M, Saleh Velez FG, Garcia JO, Muddasani V, de Havenon A, Sanchez S, Vishnu VY, Yaddanapudi S, Adams L, Browngoehl A, Ranasinghe T, Dunston R, Lynch Z, Penckofer M, Siegler JE, Mayer S, Willey JZ, Zubair AS, Cheng YK, Sharma R, Marto JP, Krupka D, Klein P, Nguyen TN, Asad SD, Sarwat Z, Balabhadra A, Patel S, Secchi T, Martins SC, Mantovani GP, Kim YD, Krishnaiah B, Elangovan C, Lingam S, Qureshi AY, Fridman S, Alvarado A, Khasiyev F, Linares G, Mannino M, Terruso V, Tountopoulou A, Tentolouris-Piperas V, Martinez-Marino MM, Carrasco Wall V, Indraswari F, El Jamal SE, Liu S, Zhou M, Alvi MM, Ali F, Sarvath M, Morsi RZ, Kass-Hout T, Shi F, Zhang J, Sokhi D, Said J, Mongare N, Simpkins AN, Gomez R, Sen S, Ghani M, Elnazeir M, Wangqin R, Xiao H, Kala NS, Khan F, Stretz C, Mohammadzadeh N, Goldstein ED, Furie K, Yaghi S. Intravenous Thrombolysis in Patients With Cervical Artery Dissection: A Secondary Analysis of the STOP-CAD Study. Neurology. 2024 Oct 8;103(7):e209843. doi: 10.1212/WNL.0000000000209843. Epub 2024 Sep 19.

    PubMed 39298709
  • Verhoeven JI, van Lith TJ, Ekker MS, Hilkens NA, Maaijwee NAM, Rutten-Jacobs LCA, Klijn CJM, de Leeuw FE. Long-term Risk of Bleeding and Ischemic Events After Ischemic Stroke or Transient Ischemic Attack in Young Adults. Neurology. 2022 Aug 9;99(6):e549-e559. doi: 10.1212/WNL.0000000000200808. Epub 2022 Jun 2.

    PubMed 35654598
  • Verburgt E, Hilkens NA, Ekker MS, Schellekens MMI, Boot EM, Immens MHM, van Alebeek ME, Brouwers PJAM, Arntz RM, van Dijk GW, Gons RAR, van Uden IWM, den Heijer T, van Tuijl JH, de Laat KF, van Norden AGW, Vermeer SE, van Zagten MSG, van Oostenbrugge RJ, Wermer MJH, Nederkoorn PJ, Kerkhoff H, Rooyer FA, van Rooij FG, van den Wijngaard IR, Ten Cate TJF, Tuladhar AM, de Leeuw FE, Verhoeven JI. Short-Term and Long-Term Risk of Recurrent Vascular Event by Cause After Ischemic Stroke in Young Adults. JAMA Netw Open. 2024 Feb 5;7(2):e240054. doi: 10.1001/jamanetworkopen.2024.0054.

    PubMed 38376841
  • Joglar JA, Chung MK, Armbruster AL, Benjamin EJ, Chyou JY, Cronin EM, Deswal A, Eckhardt LL, Goldberger ZD, Gopinathannair R, Gorenek B, Hess PL, Hlatky M, Hogan G, Ibeh C, Indik JH, Kido K, Kusumoto F, Link MS, Linta KT, Marcus GM, McCarthy PM, Patel N, Patton KK, Perez MV, Piccini JP, Russo AM, Sanders P, Streur MM, Thomas KL, Times S, Tisdale JE, Valente AM, Van Wagoner DR; Peer Review Committee Members. 2023 ACC/AHA/ACCP/HRS Guideline for the Diagnosis and Management of Atrial Fibrillation: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. Circulation. 2024 Jan 2;149(1):e1-e156. doi: 10.1161/CIR.0000000000001193. Epub 2023 Nov 30.

    PubMed 38033089
  • Ekker MS, Boot EM, Singhal AB, Tan KS, Debette S, Tuladhar AM, de Leeuw FE. Epidemiology, aetiology, and management of ischaemic stroke in young adults. Lancet Neurol. 2018 Sep;17(9):790-801. doi: 10.1016/S1474-4422(18)30233-3.

    PubMed 30129475
  • Bejot Y, Daubail B, Jacquin A, Durier J, Osseby GV, Rouaud O, Giroud M. Trends in the incidence of ischaemic stroke in young adults between 1985 and 2011: the Dijon Stroke Registry. J Neurol Neurosurg Psychiatry. 2014 May;85(5):509-13. doi: 10.1136/jnnp-2013-306203. Epub 2013 Nov 18.

    PubMed 24249786
  • Ekker MS, Verhoeven JI, Vaartjes I, van Nieuwenhuizen KM, Klijn CJM, de Leeuw FE. Stroke incidence in young adults according to age, subtype, sex, and time trends. Neurology. 2019 May 21;92(21):e2444-e2454. doi: 10.1212/WNL.0000000000007533. Epub 2019 Apr 24.

    PubMed 31019103
  • Madsen TE, Khoury JC, Leppert M, Alwell K, Moomaw CJ, Sucharew H, Woo D, Ferioli S, Martini S, Adeoye O, Khatri P, Flaherty M, De Los Rios La Rosa F, Mackey J, Mistry E, Demel SL, Coleman E, Jasne A, Slavin SJ, Walsh K, Star M, Broderick JP, Kissela BM, Kleindorfer DO. Temporal Trends in Stroke Incidence Over Time by Sex and Age in the GCNKSS. Stroke. 2020 Apr;51(4):1070-1076. doi: 10.1161/STROKEAHA.120.028910. Epub 2020 Feb 12.

    PubMed 32078459

Questions about this trial

What is this clinical trial studying?

An observational study of Ischemic Stroke, run by Qiang Dong at 1 site in China.

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 3 inclusion and 3 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 12 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

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 Qiang Dong, Professor (+8613701747065, qiang_dong163@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Patient general information (time frame: Upon admission). The study lists 12 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07171242, which also lists 10 linked publications.

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 12 Sep 2025.

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