UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061802
Receipt number R000070721
Scientific Title Efficacy of Masticatory Rehabilitation Using Rice Crackers for Patients with Eating and Swallowing Disorders: An Assessor-Blinded Randomized Controlled Trial
Date of disclosure of the study information 2026/06/04
Last modified on 2026/06/04 19:19:09

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Basic information

Public title

Efficacy of Masticatory Rehabilitation Using Rice Confectionery for Patients with Eating and Swallowing Disorders

Acronym

Evaluation of the efficacy of masticatory rehabilitation using rice crackers for patients with dysphagia: a randomized controlled trial

Scientific Title

Efficacy of Masticatory Rehabilitation Using Rice Crackers for Patients with Eating and Swallowing Disorders: An Assessor-Blinded Randomized Controlled Trial

Scientific Title:Acronym

SakuSaku Reha

Region

Japan


Condition

Condition

Post-stroke dysphagia

Classification by specialty

Rehabilitation medicine Dental medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The objective of this study is to evaluate whether masticatory rehabilitation using rice crackers (SakuSaku Reha) improves masticatory function in post-stroke inpatients consuming texture-modified diets.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Circular motion frequency of the mandible
Change in the circular motion frequency during mastication from baseline to post-intervention

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -participants are blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Other

Interventions/Control_1

Masticatory rehabilitation using rice crackers (SakuSaku Reha) is implemented.

Interventions/Control_2

Standard dysphagia rehabilitation are implemented.

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

100 years-old >=

Gender

Male and Female

Key inclusion criteria

Post-stroke patients hospitalized at our institution who received dental consultation during their stay.

Patients prescribed with dysphagia rehabilitation (rehabilitation for feeding and swallowing function).

Patients consuming modified diets (e.g., pureed or minced-and-thickened diets) with a Food Intake Level Scale (FILS) score of 7 or 8.

Patients who tested positive on the SakuSaku-test.

Key exclusion criteria

Patients who are unable to understand simple instructions.

Patients without posterior occlusal support (Eichner classification B4 and C; patients with Eichner A1 to B3 are included).

Patients with structural problems or pain during mastication, such as oral cancer or ill-fitting dentures.

Patients who experienced aspiration during the SakuSaku-test.

Patients who do not provide consent to participate in the study.

Target sample size

44


Research contact person

Name of lead principal investigator

1st name Akiko
Middle name
Last name Nomoto

Organization

Hamamatsu City Rehabilitation Hospital

Division name

Division of Dentistry

Zip code

433-8127

Address

1-6-1 Wagoukita Hamamatsu, Shizuoka, JAPAN

TEL

053-471-8331

Email

tatans.123.tatata@gmail.com


Public contact

Name of contact person

1st name Akiko
Middle name
Last name Nomoto

Organization

Hamamatsu City Rehabilitation Hospital

Division name

Division of Dentistry

Zip code

433-8127

Address

1-6-1 Wagoukita Hamamatsu, Shizuoka, JAPAN

TEL

053-471-8331

Homepage URL


Email

n.akiko-dent@sis.seirei.or.jp


Sponsor or person

Institute

Institute of Science Tokyo

Institute

Department

Personal name



Funding Source

Organization

Japan Society for the Promotion of Science (JSPS) KAKENHI

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Hamamatsu City Rehabilitation Hospital

Address

1-6-1 Wagoukita Hamamatsu, Shizuoka, JAPAN

Tel

053-471-8331

Email

kamiya@sis.seirei.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

2026 Year 06 Month 04 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

2024 Year 12 Month 12 Day

Date of IRB

2024 Year 12 Month 12 Day

Anticipated trial start date

2025 Year 10 Month 16 Day

Last follow-up date

2026 Year 12 Month 30 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 06 Month 04 Day

Last modified on

2026 Year 06 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070721