Cerebral Autoregulation Guiding Blood Pressure Management After Revascularization

NCT ID: NCT05670028

Last Updated: 2023-01-05

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

NOT_YET_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-06-04

Study Completion Date

2026-06-04

Brief Summary

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This clinical trial aims to learn whether blood pressure (BP) guided by individualized cerebral autoregulation (CA) is safe and provides a better prognosis than a fixed target in patients with ischemic stroke after endovascular therapy. The BP of participants will be managed at least 48 hours after revascularization. Researchers will compare the CA-guided BP group with the fixed target BP group to mainly see if individualized BP could help more patients to have their neurological function improved at seven days.

Detailed Description

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Conditions

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Ischemic Stroke Revascularization Blood Pressure Cerebrovascular Insufficiency Cerebral Autoregulation Individuation Hemorrhagic Transformation Due to Acute Stroke

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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CA-guided BP

The upper and lower limits of autoregulation determined by ICM+ software are used to guide the range of blood pressure control, but no more than 40% above or below the usual BP. From when the upper or lower limit of autoregulation appeared in ICM+ software to 48h after revascularization, the total time of actual BP beyond the CA range will be no more than two hours through drug intervention.

Group Type EXPERIMENTAL

Hypotensive Drugs and/or Vasoactive Drugs

Intervention Type DRUG

To manipulate the blood pressure within a certain range with hypotensive drugs (e.g. nifedipine, benidipine, captopril, benazepril, irbesartan, labetalol, urapidil) and/or vasoactive drugs (noradrenaline or dopamine).

Fixed target BP

After randomization to 48h after endovascular therapy, the target of BP was determined by clinicians according to current guidelines, i.e. \<180/105mmHg.

Group Type ACTIVE_COMPARATOR

Hypotensive Drugs and/or Vasoactive Drugs

Intervention Type DRUG

To manipulate the blood pressure within a certain range with hypotensive drugs (e.g. nifedipine, benidipine, captopril, benazepril, irbesartan, labetalol, urapidil) and/or vasoactive drugs (noradrenaline or dopamine).

Interventions

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Hypotensive Drugs and/or Vasoactive Drugs

To manipulate the blood pressure within a certain range with hypotensive drugs (e.g. nifedipine, benidipine, captopril, benazepril, irbesartan, labetalol, urapidil) and/or vasoactive drugs (noradrenaline or dopamine).

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Acute ischemic stroke, undergone endovascular treatment within 24 hours of onset (time of stroke is the last known normal for wake-up stroke or with unknown onset time), with reaching the goal of mTICI grade 2b-3
* No functional disability before stroke (mRS 0-1)
* Angiography (CTA, MRA or DSA) before endovascular therapy confirmed occlusion of the internal carotid artery and/or the middle cerebral artery M1 to M2 segment, with consistent clinical symptoms.
* Informed consent is given by the patient or the legal representative.

Exclusion Criteria

* Hemorrhagic transformation with mass effect (PH-2 type parenchymal hematoma) occurs during the operation.
* Coma, dilated pupils on one or both sides, dull or absent light reflex is noticed before randomization
* Dissection of aorta, common carotid artery, internal carotid artery, subclavian artery, intracranial artery; severe bilateral subclavian artery stenosis; contraindications of radial artery puncture were found before or during surgery.
* Shock.
* Severe cardiomyopathy with heart failure (EGFR ≤ 30% or NYHA Grade IV), acute myocardial infarction, or unstable angina.
* Possible infective endocarditis, infective embolism, or vasculitis.
* Participating in other clinical research involving drug or device intervention after endovascular therapy.
* Women who plan or are pregnant, or breastfeeding.
* Severe liver or kidney disease, malignant tumor with a life expectancy is less than 3 months.
* The 90-day follow-up is not expected to be completed.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beijing Tiantan Hospital

OTHER

Sponsor Role lead

Responsible Party

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Liping Liu

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

References

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Other Identifiers

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RESCUE-CA

Identifier Type: -

Identifier Source: org_study_id

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