Artificial Intelligence Support for Stroke

August 26, 2026 updated by: Ji Xunming,MD,PhD, Capital Medical University

Artificial Intelligence-Assisted Decision Support for Intravenous Thrombolysis in Acute Ischemic Stroke at Basic Hospitals in China (ASSIST)

This study investigates whether an AI-assisted decision support tool, compared with standard care, increases the proportion of acute ischemic stroke patients receiving intravenous thrombolysis within 24 hours of symptom onset at a primary hospital in China, while also evaluating its impact on clinical outcomes, treatment timelines, and safety.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This single-center, randomized controlled, open-label, blinded-endpoint trial aims to evaluate whether an AI-assisted decision support tool increases the proportion of acute ischemic stroke patients (onset <24 h) receiving intravenous thrombolysis at a primary hospital in China, and to assess its impact on clinical outcomes. Using cluster randomization at the level of attending physicians , the intervention group adds the AI tool to routine assessment, while the control group follows current guidelines and standard institutional protocols; both groups are not permitted to delay routine care for research purposes.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
516

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
    • Hunan
      • Changsha, Hunan, China
        • Recruiting
        • Liuyang Jili Hospital
        • Contact:
          • Yong He
          • Phone Number: 073183615622

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Age ≥18 years.
  2. Clinical diagnosis of acute ischemic stroke.
  3. Onset time (last known well) <24 hours.
  4. CT or MRI examination excluding intracerebral hemorrhage.
  5. Signed informed consent by the patient or a legally authorized representative

Exclusion Criteria:

  1. Currently participating in another interventional clinical trial related to drugs or devices.
  2. Pregnant women.
  3. Has received intravenous thrombolysis at another hospital.
  4. Has completed a definitive reperfusion therapy decision at another hospital and is transferred to this hospital solely for follow-up observation or rehabilitation.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: AI-Assisted Group
Patients receive care from attending physicians who use the AI-assisted thrombolysis decision support tool in addition to routine assessment, with the final treatment decision left to the physician's clinical judgment.
Other: AI-assisted thrombolysis decision support
The AI-assisted thrombolysis decision support tool is used by attending physicians in addition to routine stroke evaluation. After the physician enters key patient data, the system generates real-time prompts on whether the patient meets criteria for intravenous thrombolysis, recommended additional tests and risk alerts for thrombolysis. The final treatment decision remains with the treating clinician.
No Intervention: Standard Treatment Group
Patients receive standard acute ischemic stroke care according to the hospital's current protocols without the use of the AI tool.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
The proportion of patients receiving intravenous thrombolysis.
Time Frame: 24 hours within last known well
24 hours within last known well

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Proportion of patients with an modified Rankin Scale score (the total score ranges from 0 to 6; a higher score indicates a more severe disability) of 0-1 at 90 days
Time Frame: 90 days after stroke onset
90 days after stroke onset
90-Day modified Rankin Scale score (the total score ranges from 0 to 6; a higher score indicates a more severe disability)
Time Frame: 90 days after stroke onset
90 days after stroke onset
Early neurological improvement
Time Frame: 24 hours after admission
Defined as an improvement of at least 4 points on the National Institutes of Health Stroke Scale (NIHSS, 0-42 score, a higher score indicates a more severe condition) score within 24 hours, or a score of 0.
24 hours after admission
Time from admission to intravenous thrombolysis (DNT) in patients receiving intravenous thrombolysis
Time Frame: 24 hours within last known well
24 hours within last known well

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Time Frame
Proportion of symptomatic intracranial hemorrhage within 36 hours of thrombolysis
Time Frame: within 36 hours of thrombolysis
within 36 hours of thrombolysis
Proportion of any type of intracranial hemorrhage within 36 hours of thrombolysis
Time Frame: within 36 hours of thrombolysis
within 36 hours of thrombolysis
90-day all-cause mortality rate.
Time Frame: 90 days after stroke onset
90 days after stroke onset

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Capital Medical University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 26, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 31, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 15, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 23, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 25, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 27, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 26, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ASSIST

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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