UMIN-ICDS Clinical Trial
| Unique ID issued by UMIN | UMIN000061884 |
|---|---|
| Receipt number | R000070811 |
| Scientific Title | Effect of chewing on stiff shoulders associated with prolonged smartphone use |
| Date of disclosure of the study information | 2026/06/19 |
| Last modified on | 2026/06/12 10:23:11 |
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Basic information
Public title
Effect of chewing on stiff shoulders
associated with prolonged smartphone use
Acronym
Effect of chewing on stiff shoulders
associated with prolonged smartphone use
Scientific Title
Effect of chewing on stiff shoulders
associated with prolonged smartphone use
Scientific Title:Acronym
Effect of chewing on stiff shoulders
associated with prolonged smartphone use
Region
| Japan |
Condition
Condition
Healthy adult
Classification by specialty
| Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
Effect of chewing on stiff shoulders
associated with prolonged smartphone use
Basic objectives2
Efficacy
Basic objectives -Others
Trial characteristics_1
Exploratory
Trial characteristics_2
Pragmatic
Developmental phase
Not applicable
Assessment
Primary outcomes
EMG measurement (Median Frequency)
Key secondary outcomes
Muscle stiffness measurement
Subjective symptoms (VAS)
Base
Study type
Interventional
Study design
Basic design
Cross-over
Randomization
Randomized
Randomization unit
Individual
Blinding
Open -no one is blinded
Control
No treatment
Stratification
YES
Dynamic allocation
NO
Institution consideration
Institution is not considered as adjustment factor.
Blocking
NO
Concealment
Pseudo-randomization
Intervention
No. of arms
3
Purpose of intervention
Prevention
Type of intervention
| Food |
Interventions/Control_1
Test food(Mid-dose)
Interventions/Control_2
Test food(Low-dose)
Interventions/Control_3
No intake
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
| 60 | years-old | >= |
Gender
Male and Female
Key inclusion criteria
(1) Those who can eat the test foods ( preference)
(2) Those who have received sufficient explanation of the purpose and content of the study, have the ability to consent, have voluntarily volunteered to participate with a good understanding, and have agreed to participate in this study in writing
Key exclusion criteria
(1) Those who have any symptoms that may affect test food intake
(2) Those currently undergoing dental treatment, including orthodontic treatment (except for periodic cleanings).
(3) Those who may develop allergies related to the study
(4) Those who are judged by the study representative to be inappropriate to participate in this study
(5) Those taking medications that are thought to have the potential to affect the results
(6) Those who are pregnant or lactating
(7) Those who mainly use their left hand to operate their smartphone
(8) Those who are otherwise deemed unsuitable as subjects by the test administrator
Target sample size
25
Research contact person
Name of lead principal investigator
| 1st name | Kazuto |
| Middle name | |
| Last name | Okabayashi |
Organization
Lotte Co., Ltd.
Division name
Research and Development Center, Kamukoto Research Department
Zip code
3368601
Address
1-1, Numakage-3chome, Minami-ku, Saitama
TEL
0488370744
okabayashi_kazuto@lotte.co.jp
Public contact
Name of contact person
| 1st name | Kazuto |
| Middle name | |
| Last name | Okabayashi |
Organization
Lotte Co., Ltd.
Division name
Research and Development Center, Kamukoto Research Department
Zip code
3368601
Address
1-1, Numakage-3chome, Minami-ku, Saitama
TEL
0488370744
Homepage URL
okabayashi_kazuto@lotte.co.jp
Sponsor or person
Institute
Lotte Co., Ltd.
Institute
Department
Personal name
Funding Source
Organization
None
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
Shiba Palace Clinic
Address
6F DaiwaA Hamamatucho Bld., 1-9-10 Hamamatsucho, Minato-ku, Tokyo, 105-0013, Japan
Tel
03-5408-1590
jimukyoku@mail.souken-r.com
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 | 19 | 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 | 06 | Month | 09 | Day |
Date of IRB
| 2026 | Year | 06 | Month | 18 | Day |
Anticipated trial start date
| 2026 | Year | 06 | Month | 22 | Day |
Last follow-up date
| 2026 | Year | 08 | 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 | 06 | Month | 12 | Day |
Last modified on
| 2026 | Year | 06 | Month | 12 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070811
