To Assess the Effectiveness and Safety of Catheter-based Focal Intracranial Hypothermia Combined with Endovascular Reperfusion Therapy for Patients with Acute Anterior Circulation Large Artery Occlusion

NCT ID: NCT06758609

Last Updated: 2025-01-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

262 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-12-01

Study Completion Date

2026-06-30

Brief Summary

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A multicenter, prospective, open-label, blinded-endpoint, randomized controlled trial to assess the effectiveness and safety of catheter-based focal intracranial hypothermia combined with endovascular reperfusion therapy for patients with acute anterior circulation large artery occlusion.

Detailed Description

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This trial aims to assess the effectiveness and safety of catheter-based focal intracranial hypothermia combined with endovascular reperfusion therapy for patients with acute anterior circulation large artery occlusion. This study used a stratified randomization method, with participants randomly allocated in a 1:1 ratio by a central network randomization system to either the mechanical thrombectomy (MT) combined with arterial selective cooling infusion (intravenous recombinant tissue plasminogen activator) (hypothermia) group or the MT combined with normal saline infusion (normothermia) group (hereinafter referred to as the hypothermia group or normothermia group). Randomization was stratified by ASPECTS score (≥8 or \<8) and age (≥75 years or \<75 years).

Conditions

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Acute Cerebrovascular Accident Acute Ischemic Stroke Internal Carotid Artery Middle Cerebral Artery Occlusion

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Mechanical thrombectomy combined with intra-arterial selective cooling infusion (hypothermia) group

Patients received a total of 350 ml of 4°C saline infusion in addition to mechanical thrombectomy (MT).

Group Type EXPERIMENTAL

Mechanical thrombectomy

Intervention Type PROCEDURE

Mechanical thrombectomy

4°C saline infusion

Intervention Type DRUG

Patients received a total of 350 ml of 4°C saline infusion in addition to mechanical thrombectomy (MT).

Mechanical thrombectomy combined with normothermic saline infusion (normothermia) group

Patients received a total of 350 ml of roomtemperature saline infusion in addition to mechanical thrombectomy (MT).

Group Type ACTIVE_COMPARATOR

Mechanical thrombectomy

Intervention Type PROCEDURE

Mechanical thrombectomy

Normothermic saline infusion

Intervention Type DRUG

Patients received a total of 350 ml of roomtemperature saline infusion in addition to mechanical thrombectomy (MT).

Interventions

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Mechanical thrombectomy

Mechanical thrombectomy

Intervention Type PROCEDURE

4°C saline infusion

Patients received a total of 350 ml of 4°C saline infusion in addition to mechanical thrombectomy (MT).

Intervention Type DRUG

Normothermic saline infusion

Patients received a total of 350 ml of roomtemperature saline infusion in addition to mechanical thrombectomy (MT).

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Age ≥18 and ≤85 years old.
2. Symptoms of sudden focal or general neurological impairment.
3. There may be a causal relationship between vascular occlusion and nerve function defect.
4. Time from symptom onset to randomization ≤24h.
5. The National Institutes of Health Stroke Scale (NIHSS) score was ≥6 points before randomization.
6. According to the judgment of the clinician, the operation path is reasonable, and the operation and operation related instruments can reach the disease smoothly.
7. Patients or their guardians can understand the purpose of the trial, voluntarily participate and sign a written informed consent, and are capable of receiving clinical follow-up.
8. Prior to randomization, CTA, MRA, or DSA confirmed the presence of anterior circulatory large vessel occlusion (internal carotid artery or M1segment).
9. The symptoms are aggravated by recurrent cerebral infarction in the same drainage basin and/or the pathogenesis is caused by decreased blood perfusion.

Exclusion Criteria

1. Pre stroke mRS\>1 score.
2. There are acute infarcts in both cerebral hemispheres and/or anterior and posterior circulation.
3. NIHSS≤6 points.
4. Cerebral hemorrhage/subarachnoid hemorrhage was confirmed by CT or MRI. 5.The presence of active bleeding, severe anemia, coagulation dysfunction, or an uncorrected bleeding tendency (Presence of at least one of the following laboratory tests: hemoglobin \< 10g /dl, platelet count \< 100,000 /μl, uncorrected INR\>1.5, PT\> 1 minute above the upper limit of normal, or heparin-related thrombocytopenia).

6.Patients with heart function of grade 1 or above, or with a clear history of acute or chronic heart dysfunction, are at greater risk of acute heart failure or fluid perfusion intolerance as determined by clinicians.

7\. Severe heart, liver, kidney disease. 8.With malignant diseases such as malignant tumors, the expected survival time is less than 3 months.

9.Participating in other clinical trials, in the investigational phase or in the follow-up phase.
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Guangdong Second Provincial General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Zhixin Huang

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Guangdong Second Provincial General Hospital

Guangzhou, Guangdong, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Zhixin Huang, PhD

Role: CONTACT

8613607548156

Wen Sun, PhD

Role: CONTACT

8615050589620

Facility Contacts

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Zhixin Huang, PhD

Role: primary

8613607548156

Other Identifiers

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CHILL-ART

Identifier Type: -

Identifier Source: org_study_id

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