UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061469
Receipt number R000069524
Scientific Title Evaluation of a Novel Airbag Hip Protector in Hospitalized and Institutionalized Older Adults: A Multicenter Prospective Single-arm Observational Study
Date of disclosure of the study information 2026/05/07
Last modified on 2026/05/07 13:17:29

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Basic information

Public title

Evaluation of a Novel Airbag Hip Protector in Hospitalized and Institutionalized Older Adults: A Multicenter Prospective Single-arm Observational Study

Acronym

Evaluation of a Novel Airbag Hip Protector in Older Adults

Scientific Title

Evaluation of a Novel Airbag Hip Protector in Hospitalized and Institutionalized Older Adults: A Multicenter Prospective Single-arm Observational Study

Scientific Title:Acronym

Evaluation of a Novel Airbag Hip Protector in Older Adults

Region

Japan


Condition

Condition

Older adults with conditions qualifying them for admission to a convalescent rehabilitation ward who are currently hospitalized in a medical facility or admitted to a geriatric healthcare facility.

Classification by specialty

Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Hip fracture incidence per fall will be observed among older adults wearing a novel hip protector currently under development, and its safety, fit, and acceptability will be evaluated. In addition, real-world patterns of use, rehabilitation implementation, and physical function will be comprehensively documented in routine clinical settings to generate foundational data for practical deployment of the device and to inform future interventional studies.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Incidence of fall-related hip fractures during the observation period (number of hip fractures per cumulative number of falls)

Evaluation period: During the observation period (for hospitalized participants, from initiation of wear to discharge; for nursing home residents, from initiation of wear to 3 months. In addition, if consent is obtained, assessments will be continued throughout the 6-month post-discharge follow-up period).

Key secondary outcomes

Fall incidence (number of falls per unit time; number of falls per 100 patient-months at each study site)
Evaluation period: During the observation period (for hospitalized participants, from initiation of wear to discharge; for nursing home residents, from initiation of wear to 3 months. In addition, if consent is obtained, assessments will be continued throughout the 6-month post-discharge follow-up period).

Physical function assessments (grip strength, Hasegawa Dementia Scale, Timed Up and Go test)
Evaluation period: At initiation of wear; every 2 weeks during wear; at discharge (or 3 months after initiation of wear); and at outpatient follow-up visits after discharge.

Discomfort associated with wearing the hip protector
Evaluation period: At initiation of wear; 1 day after initiation; and 1 week after initiation.

Hip range of motion (hip flexion/extension, abduction/adduction, external/internal rotation angles)
Evaluation period: At initiation of wear; 1 day after initiation; and 1 week after initiation.

Skin condition (presence of contact dermatitis and abrasions related to wear)
Evaluation period: Daily throughout the wear period.

Opinion survey regarding the lumbar support device (comfort, ease of donning, etc., as rated by participants and staff)
Evaluation period: During the observation period (conducted as a field survey).

Airbag deployment status (deployment time, deployment timing, and participant impressions of deployment via open-ended questions)
Evaluation period: When airbag deployment occurs due to a fall or other trigger (recorded each time an event occurs).

IMU sensor data during falls (acceleration waveform, peak acceleration [impact magnitude], fall direction [changes in sensor axes])
Evaluation period: At the time of each fall.


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


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

65 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Individuals aged 65 years or older at the time of consent acquisition

Individuals necessitating hospitalization and treatment for conditions warranting admission to recovery-phase rehabilitation wards, or individuals currently residing in nursing care health facilities with conditions warranting such admission

Individuals capable of providing written consent for participation in this study.

Key exclusion criteria

1 Individuals meeting the criteria for cessation of rehabilitation (when active rehabilitation is not to be conducted)
2 Individuals with a resting pulse rate below 40 beats per minute or above 120 beats per minute
3 Individuals with resting systolic blood pressure of 70 mmHg or lower or 200 mmHg or higher
4 Individuals with resting diastolic blood pressure of 120 mmHg or higher
5 Individuals with exertional angina pectoris
6 Individuals with atrial fibrillation accompanied by significant bradycardia or tachycardia
7 Individuals immediately post-myocardial infarction with poor circulatory dynamics
8 Individuals with severe arrhythmia
9 Individuals experiencing resting chest pain
10 Individuals presenting with palpitations, shortness of breath, or chest pain prior to the initiation of rehabilitation
11 Individuals experiencing symptoms such as dizziness, cold sweats, or nausea while seated
12 Individuals with a resting SpO2 below 90%
13 Individuals with impeding independent walking
14 Individuals with severe cognitive impairment impeding comprehension of instructions
15 Individuals with contact dermatitis, abrasions, or bedsores on their bodies
16 Individuals with skin diseases caused by contact infection
17 Individuals with lower limb deformities preventing the use of new hip protectors
18 Individuals with severe osteoporosis
19 Individuals utilizing implantable electronic devices such as cardiac pacemakers
20 Individuals with conflicts of interest with the principal investigator or co-investigators
21 Any other individuals deemed inappropriate by the principal investigator or co-investigators.

Target sample size

500


Research contact person

Name of lead principal investigator

1st name Yukio
Middle name
Last name Mikami

Organization

Hiroshima University Hospital

Division name

Department of Rehabilitation Medicine

Zip code

734-8551

Address

Kasumi 1-2-3, Minamiku, Hiroshima

TEL

082-257-5566

Email

mikamiy@hiroshima-u.ac.jp


Public contact

Name of contact person

1st name Makoto
Middle name
Last name Asaeda

Organization

Hiroshima University Hospital

Division name

Division of Rehabilitation, Department of Clinical Support

Zip code

734-8551

Address

Kasumi 1-2-3, Minamiku, Hiroshima

TEL

082-257-5566

Homepage URL


Email

asaedam@hiroshima-u.ac.jp


Sponsor or person

Institute

Hiroshima University

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor

Daicel Corporation

Name of secondary funder(s)

Daicel Corporation


IRB Contact (For public release)

Organization

Hiroshima University

Address

Kasumi 1-2-3, Minamiku, Hiroshima

Tel

082-257-1551

Email

iryo-sinsa@office.hiroshima-u.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 05 Month 07 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 12 Month 26 Day

Date of IRB

2026 Year 05 Month 07 Day

Anticipated trial start date

2026 Year 06 Month 01 Day

Last follow-up date

2028 Year 05 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Novel Hip Protector Installation

Details: This airbag-type hip protector incorporates an IMU sensor positioned above the pelvis. Upon detecting a fall, it deploys in less than 0.1 seconds to protect the pelvic region. It should be worn continuously during hospitalization or institutional stay, except during toileting, changing clothes, and bathing.


Management information

Registered date

2026 Year 05 Month 07 Day

Last modified on

2026 Year 05 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069524