UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062615
Receipt number R000071659
Scientific Title Effectiveness of radial extracorporeal shockwave therapy (rESWT) for post-stroke shoulder pain: a randomized controlled trial
Date of disclosure of the study information 2026/08/21
Last modified on 2026/08/21 10:06:39

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Basic information

Public title

Effectiveness of radial extracorporeal shockwave therapy (rESWT) for shoulder pain in patients with stroke

Acronym

Radial extracorporeal shockwave therapy (rESWT) for post-stroke shoulder pain

Scientific Title

Effectiveness of radial extracorporeal shockwave therapy (rESWT) for post-stroke shoulder pain: a randomized controlled trial

Scientific Title:Acronym

Radial extracorporeal shockwave therapy (rESWT) for post-stroke shoulder pain: a randomized controlled trial

Region

Japan


Condition

Condition

Post-stroke shoulder pain

Classification by specialty

Neurology Orthopedics Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the effectiveness of radial extracorporeal shockwave therapy (rESWT) for shoulder pain in patients with stroke.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Worst shoulder pain during the past 24 hours (Brief Pain Inventory [BPI], Question 3: Worst pain)

Key secondary outcomes

1.Pain intensity: Mean score of the four pain intensity items of the Brief Pain Inventory (BPI)
2.Pain interference: Mean score of the seven pain interference items of the Brief Pain Inventory (BPI)
3.Pain during passive movement: Numeric Rating Scale (NRS) during passive range-of-motion (ROM) assessment
4.Passive range of motion: Passive range of motion (ROM) of the shoulder joint
5.Global perceived improvement: Global Rating of Change (GROC) scale


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

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

Device,equipment

Interventions/Control_1

Radial extracorporeal shockwave therapy (rESWT) will be applied to the affected shoulder for 2 weeks, twice weekly, for a total of 4 sessions. Each session will consist of 6,000 shocks at a pressure of 2 bar and a frequency of 15 Hz. After the initial 2-week intervention period, no further rESWT will be administered, and the participants will be followed during the subsequent observation period.

Interventions/Control_2

Sham radial extracorporeal shockwave therapy (sham rESWT) will be applied to the affected shoulder for 2 weeks, twice weekly, for a total of 4 sessions. The sham treatment will follow the same treatment procedures and treatment duration as the rESWT group but will use a sham stimulus that does not deliver therapeutic shockwave energy. After the initial 2-week sham intervention period, participants will receive open-label rESWT during the subsequent intervention period.

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

20 years-old <=

Age-upper limit

90 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Individuals with hemiparesis resulting from stroke (cerebral infarction or intracerebral hemorrhage)
2. Individuals with pain localized to the affected shoulder joint

Key exclusion criteria

1. Individuals who have difficulty understanding the study procedures due to higher brain dysfunction (attention, memory, apraxia, aphasia, or unilateral spatial neglect) or cognitive impairment
2. Individuals whose dosage of analgesic medication may be changed during the study period
3. Individuals who are receiving intra-articular injections or are likely to receive such injections during the study period
4. Individuals receiving anticoagulant therapy with an international normalized ratio (INR) >4.0
5. Individuals with shoulder pain that was present before the onset of stroke
6. Individuals who meet the diagnostic criteria for complex regional pain syndrome (CRPS)
7. Individuals with allodynia
8. Individuals with causes of shoulder pain other than hemiplegic shoulder pain (HSP)
9. Individuals whom the attending physician considers unsuitable for participation in the study

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Ichiro
Middle name
Last name Miyai

Organization

Morinomiya Hospital

Division name

Neurorehabilitation Research Institute

Zip code

536-0025

Address

2-1-88 Morinomiya, Joto-ku, Osaka, Japan.

TEL

06-6969-8170

Email

miyai@omichikai.or.jp


Public contact

Name of contact person

1st name Misako
Middle name
Last name Miyata

Organization

Morinomiya Hospital

Division name

Officer

Zip code

5360025

Address

2-1-88 Morinomiya, Joto-ku, Osaka City, Osaka, Japan

TEL

06-6969-0111

Homepage URL


Email

miyata@omichikai.or.jp


Sponsor or person

Institute

Morinomiya hospital

Institute

Department

Personal name

Miyai Ichiro


Funding Source

Organization

Morinomiya Hospital

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Omichi-kai Social Medical Corporation IRB

Address

2-1-88 Morinomiya, Joto-ku, Osaka City, Osaka, Japan

Tel

06-6969-0111

Email

nrri-jimu@omichikai.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

森之宮病院(大阪府)


Other administrative information

Date of disclosure of the study information

2026 Year 08 Month 21 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

2026 Year 08 Month 24 Day

Date of IRB

2025 Year 11 Month 26 Day

Anticipated trial start date

2026 Year 08 Month 24 Day

Last follow-up date

2029 Year 08 Month 24 Day

Date of closure to data entry

2029 Year 08 Month 24 Day

Date trial data considered complete

2029 Year 08 Month 24 Day

Date analysis concluded

2029 Year 08 Month 24 Day


Other

Other related information



Management information

Registered date

2026 Year 08 Month 19 Day

Last modified on

2026 Year 08 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071659