Low-Frequency REpetitive TRanscranial Magnetic Stimulation in ACute Ischemic StrokE Within 48 Hours
RETRACE-I
1 other identifier
interventional
60
1 country
1
Brief Summary
This is a multicenter, open-label, evaluator-blinded, investigator-initiated, randomized clinical trial, to evaluate the clinical efficacy and safety of LF-rTMS in reducing infarct size, reducing disability rate and improving functional outcome in patients with acute ischemic stroke within 48 hours after stroke onset.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Mar 2024
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 24, 2023
CompletedFirst Posted
Study publicly available on registry
October 3, 2023
CompletedStudy Start
First participant enrolled
March 11, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 28, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
October 25, 2025
CompletedApril 15, 2026
April 1, 2026
1.4 years
August 24, 2023
April 10, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Infarct growth from baseline to Day 3 (mL)
Infarct growth at 3 days was calculated as the absolute difference between the baseline core infarct volume and the 3 days post-randomization infarct volume. Positive values indicate infarct growth.
3 days
Symptomatic intracranial hemorrhage
The proportion of symptomatic intracranial hemorrhage
3 days
Secondary Outcomes (14)
Proportion of Early neurological improvement (ENI)
3 days
Final infarct volume at Day 3 (mL)
3 days
Change in NIHSS score from baseline to Day 3
3 days
Proportion of participants with modified Rankin Scale score 0 to 1 at Day 90
90 days
Proportion of participants with modified Rankin Scale score 0 to 2 at Day 90
90 days
- +9 more secondary outcomes
Other Outcomes (3)
Change in resting-state functional connectivity in the insular-prefrontal circuit.
90 days
Change in peripheral immune biomarker levels from baseline to Day 3
3 days
Change in peripheral immune biomarker levels from baseline to Day 7
7 days
Study Arms (2)
LF-rTMS
EXPERIMENTALH 4 Coil (stimulation site: prefrontal cortex, insular lobe),1-Hz rTMS, stimulation intensity RMT 100%,1200 pulses/session, two sessions (2400 pulses)/day (interval ≥2 hours), lasting about half an hour each time, the total duration of treatment was 3 days (6 sessions,7200 pulses).
Control
NO INTERVENTIONRoutine treatment.
Interventions
H 4 Coil (stimulation site: prefrontal cortex, insular lobe),1-Hz rTMS, stimulation intensity RMT 100%,1200 pulses/session, two sessions (2400 pulses)/day (interval ≥2 hours), lasting about half an hour each time, the total duration of treatment was 3 days (6 sessions,7200 pulses).
Eligibility Criteria
You may qualify if:
- Age 18-80 years, gender is not limited;
- Acute ischemic stroke of anterior circulation was diagnosed clinically
- mRS 0-1 score before onset;
- ≤ NIHSS ≤25 at randomization;
- Within 48 hours of stroke onset;
- No thrombolysis therapy or thrombectomy is planned;
- Obtain informed consent signed by the patient himself or by his legal authorized representative.
You may not qualify if:
- TMS contraindications include metallic foreign bodies in the head, pacemaker, implantable drug pumps, cochlear implants, etc.
- Epilepsy or history of epilepsy, intracranial hypertension, tumor and other serious neurological disorders;
- Midline displacement and brain parenchymal mass effect seen in head CT and other images;
- Head CT or MRI showed bilateral acute cerebral infarction, brainstem infarction, or insular infarction;
- Evidence of acute intracranial hemorrhage;
- A history of congenital or acquired hemorrhagic disease, coagulation factor deficiency, or thrombocytopenia disease;
- After blood pressure control, the systolic blood pressure was still ≥180 mmHg or the diastolic blood pressure was ≥110 mmHg;
- Known recent or current serum creatinine exceeding 1.5 times the upper limit of normal or estimated glomerular filtration rate (EGFR) \< 60 mL/min;
- Patients during pregnancy or lactation and within 90 days of planned pregnancy;
- Patients with severe mental disorders or dementia who can not cooperate with informed consent and follow-up;
- Patients with malignancy or severe systemic disease and expected survival of less than 90 days;
- Participants in other clinical intervention studies within 30 days before randomization or who were participating in other clinical intervention studies.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Beijing Tian tan Hospital
Beijing, Beijing Municipality, 100070, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Yongjun Wang, MD
Beijing Tiantan Hospital
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Masking Details
- The investigators involved in the clinical evaluation of the patients remained blinded to treatment grouping.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
August 24, 2023
First Posted
October 3, 2023
Study Start
March 11, 2024
Primary Completion
July 28, 2025
Study Completion
October 25, 2025
Last Updated
April 15, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share