UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058537
Receipt number R000066936
Scientific Title Randomized Clinical Trial of Endovascular Therapy for Acute Ischemic Stroke with Occlusion of the M2 Segment of Middle Cerebral Artery
Date of disclosure of the study information 2025/10/01
Last modified on 2025/07/21 21:59:51

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Basic information

Public title

Randomized Clinical Trial of Endovascular Therapy for Acute Ischemic Stroke with Occlusion of
the M2 Segment of Middle Cerebral Artery

Acronym

RESCUE-M2O

Scientific Title

Randomized Clinical Trial of Endovascular Therapy for Acute Ischemic Stroke with Occlusion of
the M2 Segment of Middle Cerebral Artery

Scientific Title:Acronym

RESCUE-M2O

Region

Japan Asia(except Japan)


Condition

Condition

Acute Ischemic Stroke with Occlusion of the M2 Segment of Middle Cerebral Artery

Classification by specialty

Neurosurgery

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the efficacy of endovascular therapy for acute ischemic stroke with occlusion of the M2 segment of the middle cerebral artery.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Achievement of mRS scores of 0-2 at 90 days after randomization

Key secondary outcomes

(1) Achievement of mRS scores of 0-1 at 90 days after randomization
(2) mRS shift analysis at 90 days after randomization
(3) NIHSS improvement of 8 points or more at 48 hours after randomization
(4) QOL (EQ-5D-3L) at 90 days after randomization
(5) Symptomatic intracranial hemorrhage (ICH) within 48 hours after randomization
(6) Any ICH within 48 hours after randomization
(7) All cause death (mRS 6) within 90 days after randomization
(8) Recurrence of cerebral infarction within 90 days after randomization
(9) Decompressive craniectomy within 7 days after randomization


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Maneuver

Interventions/Control_1

Medical therapy+Endovascular therapy

Interventions/Control_2

Medical therapy alone

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

85 years-old >

Gender

Male and Female

Key inclusion criteria

(1) Acute cerebral infarction
(2) Aged 18-84 years
(3) NIHSS score at admission 8 or more
(4) Prestroke mRS scores of 0-1
(5) Occlusion of the M2 segment of MCA on digital subtraction angiography (DSA)
(6) ASPECTS 8 or more, or DWI-ASPECTS 8 or more
(7) Ineligible or failed IV-tPA (no recanalization within 30 minutes after injection)
(8) Randomization can be completed within 24 hours from the last known well time.
(9) EVT can be initiated within 30 minutes from randomization.
(10) The patient or their legally authorized representative has signed the informed consent form.

Key exclusion criteria

(1) Occlusion of the anterior temporal artery, duplicate M1, or accessory M1
(2) Occlusion of multiple major intracranial arteries
(3) Difficulty in endovascular access due to tortuous vascular anatomy
(4) Significant mass effect with midline shift on CT (or MRI)
(5) Known allergy (more severe than skin rash) to contrast agents
(6) Evidence of acute intracranial hemorrhage on CT (or MRI)
(7) Pregnant or potentially pregnant
(8) Clinical evidence of chronic occlusion
(9) High risk of hemorrhage (platelet < 40,000/ul, APTT > 50 second or PT-INR > 3.0)
(10) Participating in any other therapeutic investigational trial
(11) Judgment of the investigator to be non-compliant or uncooperative during the study

Target sample size

200


Research contact person

Name of lead principal investigator

1st name Shinichi
Middle name
Last name Yoshimura

Organization

Hyogo Medical University

Division name

Department of Neurosurgery

Zip code

663-8501

Address

1-1 Mukogawa, Nishinomiya, Hyogo, Japan

TEL

0798-45-6455

Email

fu-sakakibara@hyo-med.ac.jp


Public contact

Name of contact person

1st name Kazutaka
Middle name
Last name Uchida

Organization

Hyogo Medical University

Division name

Department of Neurosurgery

Zip code

663-8501

Address

1-1 Mukogawa, Nishinomiya, Hyogo, Japan

TEL

0798-45-6455

Homepage URL


Email

fu-sakakibara@hyo-med.ac.jp


Sponsor or person

Institute

Hyogo Medical University

Institute

Department

Personal name



Funding Source

Organization

Hyogo Medical University

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institutional Review Boards at Hyogo Medical University

Address

1-1 Mukogawa, Nishinomiya, Hyogo

Tel

0798-45-6455

Email

rinri@hyo-med.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 10 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 07 Month 22 Day

Date of IRB


Anticipated trial start date

2025 Year 10 Month 01 Day

Last follow-up date

2028 Year 01 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 07 Month 21 Day

Last modified on

2025 Year 07 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066936