UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061268
Receipt number R000070105
Scientific Title Effects of Purposeful Activity-Based Electrical Stimulation Therapy on Brain Function in Patients with Severe Upper Limb Hemiparesis in Chronic Stroke: A Crossover Randomized Controlled Trial
Date of disclosure of the study information 2026/06/01
Last modified on 2026/04/15 12:20:23

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Basic information

Public title

Effect of Purposeful Activity-Based Electrical Stimulation Therapy on Severe Upper Limb Paralysis in Chronic Stroke Patients

Acronym

PA-EST Crossover Trial

Scientific Title

Effects of Purposeful Activity-Based Electrical Stimulation Therapy on Brain Function in Patients with Severe Upper Limb Hemiparesis in Chronic Stroke: A Crossover Randomized Controlled Trial

Scientific Title:Acronym

PA-EST Crossover RCT

Region

Japan


Condition

Condition

Chronic stroke with severe upper limb hemiparesis

Classification by specialty

Neurology Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The objective of this study is to evaluate the effectiveness of purposeful activity-based electrical stimulation therapy (PA-EST) in patients with severe upper limb hemiparesis in chronic stroke, and to compare its effects on brain function and motor function with those of stretching therapy.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Changes in cerebral hemodynamics (oxygenated hemoglobin concentration) measured by functional near-infrared spectroscopy (fNIRS), assessed before and after each intervention period

Key secondary outcomes

Upper limb motor function (Fugl-Meyer Assessment), amount and quality of use of the affected upper limb (Motor Activity Log),and goal attainment (Goal Attainment Scaling) will be assessed before and after each intervention period


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Behavior,custom

Interventions/Control_1

Purposeful activity-based electrical stimulation therapy (PA-EST)
PA-EST consists of functional electrical stimulation combined with purposeful upper limb activities tailored to the participants daily life goals in patients with severe upper limb hemiparesis after chronic stroke. The intervention period is 3 months. Home-based training is performed twice daily for 5-30 minutes per session, at least 3 times per week. In addition, therapist-guided training focusing on daily activities and instruction on the use of the affected upper limb in daily life are provided.

Interventions/Control_2

Stretching therapy
Stretching therapy consists of stretching exercises for the affected upper limb in patients with severe upper limb hemiparesis after chronic stroke. The intervention period is 3 months. Home-based training is performed twice daily for 5-30 minutes per session, at least 3 times per week. In addition, occupational therapy focusing on daily activities and instruction on the use of the affected upper limb in daily life are provided.

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

30 years-old <=

Age-upper limit

89 years-old >=

Gender

Male and Female

Key inclusion criteria

Patients with chronic stroke, defined as more than 1 year since onset
Severe upper limb hemiparesis with a Fugl-Meyer Assessment (FMA) upper extremity score of <33
Minimal voluntary movement of the affected upper limb
Living at home
Receiving occupational therapy
Able to communicate in daily conversation
No higher brain dysfunction that interferes with daily life

Key exclusion criteria

Presence of a cardiac pacemaker
Malignant lesions at the stimulation site
Fracture, dislocation, or other local disorders at the stimulation site
Severe cognitive impairment that interferes with daily communication
Higher brain dysfunction that interferes with daily life
Considered unsuitable for participation by the investigator or attending physician

Target sample size

10


Research contact person

Name of lead principal investigator

1st name Seigo
Middle name
Last name Minami

Organization

Gunma Paz University

Division name

Department of Occupational Therapy, Faculty of Rehabilitation

Zip code

371-0823

Address

1-7-1 Tonya-machi, Maebashi, Gunma, Japan

TEL

0748635670

Email

se-minami@hyo-med.ac.jp


Public contact

Name of contact person

1st name Seigo
Middle name
Last name Minami

Organization

Hyogo Medical University

Division name

Faculty of Rehabilitation Science

Zip code

650-8530

Address

1-3-6 Minatojima, Chuo-ku, Kobe, Hyogo, Japan

TEL

0783043060

Homepage URL


Email

se-minami@hyo-med.ac.jp


Sponsor or person

Institute

Gunma Paz University

Institute

Department

Personal name



Funding Source

Organization

Japan Society for the Promotion of Science (JSPS) KAKENHI

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Gunma Paz University

Address

1-7-1 Tonya-machi, Maebashi, Gunma, Japan

Tel

027-365-3366

Email

paz-kenkyu@paz.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

2026 Year 06 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

Open public recruiting

Date of protocol fixation

2023 Year 02 Month 10 Day

Date of IRB

2023 Year 02 Month 10 Day

Anticipated trial start date

2023 Year 03 Month 01 Day

Last follow-up date

2026 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

2026 Year 04 Month 15 Day

Last modified on

2026 Year 04 Month 15 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070105