UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059215
Receipt number R000066857
Scientific Title Efficacy of Remote Ischaemic Postconditioning in Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion: randomised control trial
Date of disclosure of the study information 2025/09/28
Last modified on 2025/09/27 14:49:13

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Basic information

Public title

Efficacy of Remote Ischaemic Postconditioning in Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion

Acronym

Efficacy of RIPoC in AESD

Scientific Title

Efficacy of Remote Ischaemic Postconditioning in Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion: randomised control trial

Scientific Title:Acronym

Efficacy of RIPoC in AESD

Region

Japan


Condition

Condition

Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion

Classification by specialty

Neurology Pediatrics Intensive care medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

We prospectively investigate the efficacy of remote iscaemic postconditiong (RIPoC) as an adjunct therapy to therapeutic hypothermia in AESD patients by comparing the outcomes between AESD patients with targeted temperature management (34 degrees celsius) and those with targeted temperature management and RIPoC.

Basic objectives2

Others

Basic objectives -Others

We also investigate the effect of RIPoC on autonomic nervous system under targeted temperature management (34 degrees celsius)

Trial characteristics_1

Confirmatory

Trial characteristics_2

Explanatory

Developmental phase

Phase II,III


Assessment

Primary outcomes

Neurological outcomes evaluated by psychologists who do not know the treatment assignment at the time of one, three, six, twelve months and three years from the onset are compared between the two groups using below three methods.
1. When the patient age is less than 18 months at the time of evaluation, the Kyoto Scale of Psychological Development 2001 (KSPD) is used for the evaluation. When the patient age is 18 months or more, Tanaka-Binet Intelligence Scale is used.
2. The evaluation is also made using Vineland Adaptive Behavior Scales, Second Edition at six, twelve months and three years from the onset.
3. Pediatric Cerebral Performance Category Scale (PCPC) judging from above two neurological assessments.

Key secondary outcomes

Objective evaluation of autonomic nervous system
1. Comparison changes in cortisol, melatonin, and Chromogranin A in saliva between the two groups at 6 points a day (6, 10, 12, 15, 17, 21:00) for three days plus before and three hours after the RIPoC procedure on the first day and third day.
2. Comparison of low frequency, high frequency, and LF/FH ratio for three days from the start of therapeutic temperature management between the two groups using Holter electrocardiographic monitoring


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Maneuver

Interventions/Control_1

The intervention group: RIPoC (4 cycles of 5 mins inflation and 5 mins deflation) is applied on a lower extremity using a blood pressure monitor cuff with 200 mmHg at the initiation of targeted temperature management for 72 hours. Briefly, after a patient is intubated, arterial blood pressure monitoring is established at an upper extremity, and targeted temperature management (34 degrees celsiu) is initiated, a blood pressure monitor cuff is placed on another upper extremity and both side of thighs. The cuff is inflated to 200mmHg and the artery is checked whether to be occluded completely using the ultrasonic blood flowmeter and/or colour doppler image by ultrasonography. During each interval of cuff inflation, the pulse is checked peripherally to the site where the cuff is applied using the ultrasonic blood flowmeter and also skin damage to the site, such as swelling, redness, is checked using the ultrasonic blood flowmeter and colour doppler image by ultrasonography. During the 40 minutes of the procedure, blood pressure, heart rate, oxygen aturation, are checked every minute. Blood samples for coagulation function test was taken from patients at two timepoints, just before the procedure and after the 5 cycles of RIPoC, and PT, APTT was compared between them. These procedures are repeated every 24 hours for three days.

Interventions/Control_2

After a patient is intubated, arterial blood pressure monitoring is established at an upper extremity, and targeted temperature management (34 degrees celsiu) for 72 hours is initiated.

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

1 months-old <=

Age-upper limit

15 years-old >=

Gender

Male and Female

Key inclusion criteria

Pediatric patients (1month-15years) fulfilling the diagnostic criteria of AESD or paediatric patients with persistent consciousness disturbance more than 6 hours after early seizure/seizures strongly suggestive for AESD judging from clinical symptoms/signs (seizures and consciousness disturbance) and electroencephalogram findings (usually generalised high voltage slow wave) and later confirmed as AESD by the neuroimaging

Key exclusion criteria

Exclusion criteria for applying RIPoC were patients who the consent is not gained from their parent/parents or guardians for the study, patients with thrombocytopenia (<100,000/uL), coagulation disorders (international normalised ratio of prothrombin time > 1.3 s or activated partial thromboplastin time > 50 s), patients with shock, or unstable hemodynamic status with elevated intracranial hypertension symptoms, requiring catecholamine medications or antihypertensive medications, and patients with injuries or skin inflammation on both lower extremities which prevent the application of a blood pressure monitor cuff.
Patient who underwent therapeutic hypothermia due to persistent consciousness disturbance more than 6 hours after ES/ESs, which was strongly suggestive for AESD, but later revealing no abnormal MRI or SPECT findings.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Go
Middle name
Last name Kawano

Organization

St Marys Hospital

Division name

Department of Paediatrics

Zip code

830-8543

Address

422 Tsubukuhonmachi, Kurume, Fukuoka

TEL

0942-35-3322

Email

kawano19720625@yahoo.co.jp


Public contact

Name of contact person

1st name Go
Middle name
Last name Kawano

Organization

St Marys Hospital

Division name

Department of Paediatrics

Zip code

830-8543

Address

422 Tsubukuhonmachi, Kurume, Fukuoka

TEL

0942-35-3322

Homepage URL

https://www.st-mary-med.or.jp/hospital/optout.html

Email

kawano19720625@yahoo.co.jp


Sponsor or person

Institute

Social Medical Corporation Yuki no Seibokai , St. Mary's Research Cente

Institute

Department

Personal name

Go Kawano


Funding Source

Organization

JSPS KAKENHI

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Social Medical Corporation Yuki no Seibokai , St. Mary's Research Cente

Address

422 Tsubukuhonmachi, Kurume, Fukuoka

Tel

0942-36-2250

Email

kenkyusyo@st-mary-med.or.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 09 Month 28 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 21 Day

Date of IRB


Anticipated trial start date

2025 Year 07 Month 22 Day

Last follow-up date

2030 Year 03 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 09 Month 27 Day

Last modified on

2025 Year 09 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000066857