StrokeNCT07741669
Study on the Incremental Predictive Value of Early Resting-State EEG Phenotypes for Functional Prognosis and Risk Stratification in Acute Ischemic Stroke
An observational study of Stroke, run by Xuanwu Hospital, Beijing at 1 site in China.
Trial summary
This is a single-center, prospective, observational cohort study that plans to consecutively enroll 400 patients with acute ischemic stroke from July 2026 to July 2029. The study will not interfere with acute-phase treatment decisions; information on reperfusion and non-reperfusion treatment will be recorded according… Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Stroke
- How many people
- 5 participants
- Where
- 1 siteChina
- Study dates
- 15 Jul 2026to 28 Jul 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
- Healthy volunteers accepted
- Adult, Older adult
Study population: The study population will consist of stroke patients treated at Xuanwu Hospital, Capital Medical University. Participants will be grouped according to their actual treatment pathway into a reperfusion therapy group and a non-reperfusion therapy group. The study team will record the type of reperfusion therapy, key treatment time points, and related information.
Who may be able to join
- Age >=18 years, regardless of sex;
- Meets diagnostic criteria for acute ischemic stroke, supported by cranial CT/MRI and/or vascular imaging;
- Symptom onset time or last-known-well time is clear;
- Clinical assessment indicates that resting-state EEG can be completed without delaying acute treatment;
- Pre-stroke mRS <=2, or basic independence in daily living before stroke;
- The patient, legal guardian, or impartial witness provides informed consent to participate in this study.
- The primary analysis population will be restricted to patients with mild-to-moderate to moderately severe acute ischemic stroke; an NIHSS score of 4-18 is recommended.
Who cannot join
- Primary diagnosis of hemorrhagic stroke, cerebral venous sinus thrombosis, brain tumor, encephalitis, severe traumatic brain injury, or other non-ischemic brain injury;
- Pre-existing marked neurological disability, pre-stroke mRS >2, severe prior dementia, or severe psychiatric disorder that would make follow-up functional or cognitive outcomes difficult to interpret;
- Persistent deep sedation, coma, mechanical ventilation, severe metabolic disturbance, severe infection, or other conditions at the time of EEG acquisition that the investigator judges would markedly affect resting-state EEG background activity;
- Status epilepticus or recent frequent clinical seizures around the time of EEG acquisition that the investigator judges would substantially affect interpretation of resting-state EEG;
- Any other condition that the investigator judges unsuitable for participation in this study.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site
Xuanwu Hospital
Beijing
Junwei Hao, MD, 01083198277, haojunwei@vip.163.com
About this study
This is a single-center, prospective, observational cohort study that plans to consecutively enroll 400 patients with acute ischemic stroke from July 2026 to July 2029. The study will not interfere with acute-phase treatment decisions; information on reperfusion and non-reperfusion treatment will be recorded according to the actual clinical care pathway. After completion of necessary acute treatment, once vital signs are stable and clinical conditions permit, all participants will undergo one resting-state EEG recording as early as possible, within 7 days after symptom onset or the last-known-well time. For patients receiving reperfusion therapy, EEG will be acquired after completion of the reperfusion procedure, and intervals such as onset-to-reperfusion initiation and completion of reperfusion-to-EEG acquisition will be recorded. For patients not receiving reperfusion therapy, EEG will be acquired after the stroke diagnosis is established, routine treatment has been initiated, and the clinical condition is stable; onset-to-admission and onset-to-EEG acquisition intervals will be recorded. EEG features will be extracted and combined with clinical and imaging variables to construct prognostic models. The primary outcome is functional outcome at 3 months after onset, dichotomized as mRS 0-2 versus 3-6. The primary analysis will evaluate the incremental predictive value of EEG phenotypes for poor 3-month functional outcome beyond a conventional clinical-imaging model. Secondary analyses will include validation of 6-month outcomes, functional and cognitive scale outcomes, and differences in EEG phenotypes across treatment pathways.
- Conditions
- Stroke
- Medical subject headings
- Stroke
What is being measured
The primary outcome is the main question the study is designed to answer.
Dichotomized mRS of 0-2 vs. 3-6
Dichotomized mRS of 0-2 vs. 3-6 at 90±7 days; modified Rankin scale (range, 0 to 6, with a score of 0 indicating no disability, 1 no clinically significant disability, 2 slight disability, 3 moderate disability but remaining able to walk unassisted, 4 moderately severe disability, 5 severe disability, and 6 death)
Measured: 90(±28)days
Secondary outcomes (3)
Ordinal mRS score
Ordinal mRS score at 90 (±28) days; modified Rankin scale (range, 0 to 6, with a score of 0 indicating no disability, 1 no clinically significant disability, 2 slight disability, 3 moderate disability but remaining able to walk unassisted, 4 moderately severe disability, 5 severe disability, and 6 death)
Measured: 90 (±28) days
Dichotomized mRS of 0-2 vs. 3-6
Dichotomized mRS of 0-2 vs. 3-6 at 180(±28) days; modified Rankin scale (range, 0 to 6, with a score of 0 indicating no disability, 1 no clinically significant disability, 2 slight disability, 3 moderate disability but remaining able to walk unassisted, 4 moderately severe disability, 5 severe disability, and 6 death)
Measured: 180(±28) days
Score on the BI at 90 (±28) days and 180(±28) days
Barthel Index，BI: The total score is 100 points. The higher the score, the better the independence and the lower the dependence.If the total score is ≤ 40 points, it indicates severe dependence, and full - time care by others is required.If the total score is between 41 - 60 points, it indicates moderate dependence, and most of the care needs to be provided by others.If the total score is between 61 - 99 points, it indicates mild dependence, and only a small part of care needs to be provided by others.If the total score is 100 points, it indicates no dependence, and no care from others is required.
Measured: 90 (±28) days and 180(±28) days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Aug 2026
- Study start15 Jul 2026 (estimated)
- Primary completion15 Dec 2026 (estimated)
- Study completion28 Jul 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for StrokeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- 5 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Xuanwu Hospital, Beijing
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07741669
- Sponsor's protocol ID
- xw206-001
- Status last verified
- Jul 2026
- First submitted
- 15 Jul 2026
- Last updated
- 3 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 3 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Study on the Incremental Predictive Value of Early Resting-State EEG Phenotypes for Functional Prognosis and Risk Stratification in Acute Ischemic Stroke
- ClinicalTrials.gov ID
- NCT07741669
- Acronym / sponsor ID
- xw206-001
- Conditions
- Stroke
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 5 participants (estimated)
- Lead sponsor
- Xuanwu Hospital, BeijingUniversity, hospital or other
- Study start
- 15 Jul 2026 (estimated)
- Primary completion
- 15 Dec 2026 (estimated)
- Study completion
- 28 Jul 2029 (estimated)
- First posted
- 3 Aug 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a single-center, prospective, observational cohort study that plans to consecutively enroll 400 patients with acute ischemic stroke from July 2026 to July 2029. The study will not interfere with acute-phase treatment decisions; information on reperfusion and non-reperfusion treatment will be recorded according to the actual clinical care pathway. After completion of necessary acute treatment, once vital signs are stable and clinical conditions permit, all participants will undergo one resting-state EEG recording as early as possible, within 7 days after symptom onset or the last-known-well time. For patients receiving reperfusion therapy, EEG will be acquired after completion of the reperfusion procedure, and intervals such as onset-to-reperfusion initiation and completion of reperfusion-to-EEG acquisition will be recorded. For patients not receiving reperfusion therapy, EEG will be acquired after the stroke diagnosis is established, routine treatment has been initiated, and the clinical condition is stable; onset-to-admission and onset-to-EEG acquisition intervals will be recorded. EEG features will be extracted and combined with clinical and imaging variables to construct prognostic models. The primary outcome is functional outcome at 3 months after onset, dichotomized as mRS 0-2 versus 3-6. The primary analysis will evaluate the incremental predictive value of EEG phenotypes for poor 3-month functional outcome beyond a conventional clinical-imaging model. Secondary analyses will include validation of 6-month outcomes, functional and cognitive scale outcomes, and differences in EEG phenotypes across treatment pathways.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- The study population will consist of stroke patients treated at Xuanwu Hospital, Capital Medical University. Participants will be grouped according to their actual treatment pathway into a reperfusion therapy group and a non-reperfusion therapy group. The study team will record the type of reperfusion therapy, key treatment time points, and related information.
Key inclusion criteria (7 listed)
- Age >=18 years, regardless of sex;
- Meets diagnostic criteria for acute ischemic stroke, supported by cranial CT/MRI and/or vascular imaging;
- Symptom onset time or last-known-well time is clear;
- Clinical assessment indicates that resting-state EEG can be completed without delaying acute treatment;
- Pre-stroke mRS <=2, or basic independence in daily living before stroke;
Key exclusion criteria (5 listed)
- Primary diagnosis of hemorrhagic stroke, cerebral venous sinus thrombosis, brain tumor, encephalitis, severe traumatic brain injury, or other non-ischemic brain injury;
- Pre-existing marked neurological disability, pre-stroke mRS >2, severe prior dementia, or severe psychiatric disorder that would make follow-up functional or cognitive outcomes difficult to interpret;
- Persistent deep sedation, coma, mechanical ventilation, severe metabolic disturbance, severe infection, or other conditions at the time of EEG acquisition that the investigator judges would markedly affect resting-state EEG background activity;
- Status epilepticus or recent frequent clinical seizures around the time of EEG acquisition that the investigator judges would substantially affect interpretation of resting-state EEG;
- Any other condition that the investigator judges unsuitable for participation in this study.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Dichotomized mRS of 0-2 vs. 3-6
Time frame: 90(±28)days
Dichotomized mRS of 0-2 vs. 3-6 at 90±7 days; modified Rankin scale (range, 0 to 6, with a score of 0 indicating no disability, 1 no clinically significant disability, 2 slight disability, 3 moderate disability but remaining able to walk unassisted, 4 moderately severe disability, 5 severe disability, and 6 death)
3 secondary outcomes
Ordinal mRS score
Time frame: 90 (±28) days
Dichotomized mRS of 0-2 vs. 3-6
Time frame: 180(±28) days
Score on the BI at 90 (±28) days and 180(±28) days
Time frame: 90 (±28) days and 180(±28) days
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Aug 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Stroke, run by Xuanwu Hospital, Beijing 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 7 inclusion and 5 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: opening soon, as of the sponsor's last update on 3 Aug 2026. 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 Jun wei Hao, MD (01083198277, haojunwei@vip.163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Dichotomized mRS of 0-2 vs. 3-6 (time frame: 90(±28)days). 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 3 Aug 2026.