UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000059112
Receipt number R000067581
Scientific Title Elucidation of the protective effect of subcutaneous insulin administration against brain amyloid accumulation
Date of disclosure of the study information 2025/09/18
Last modified on 2025/09/17 15:50:26

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Basic information

Public title

Elucidation of the protective effect of subcutaneous insulin administration against brain amyloid accumulation

Acronym

Elucidation of the protective effect of subcutaneous insulin administration against brain amyloid accumulation

Scientific Title

Elucidation of the protective effect of subcutaneous insulin administration against brain amyloid accumulation

Scientific Title:Acronym

Elucidation of the protective effect of subcutaneous insulin administration against brain amyloid accumulation

Region

Japan


Condition

Condition

Type 2 diabetes

Classification by specialty

Medicine in general Endocrinology and Metabolism

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Clarifying the relationship with subcutaneous insulin administration and brain Ab accumulation by quantifying brain Ab accumulation in long-term insulin users and non-users using amyloid PET.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The standardized uptake volume ratio (SUVr) was calculated using the volumes of interest (VOI) of eight domain (frontal lobe, parietal lobe, temporal lobe, occipital lobe, posterior cingulate gyrus, precuneus, basal ganglia, and cerebellum) and Composite (a composite of eight regions) and the mean pixel values of Pons, and the mean cortical SUVr (mcSUVr) was compared between insulin user group and noninsulin user group.

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

No treatment

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Medicine

Interventions/Control_1

Type 2 diabetes treated with subcutaneous insulin injections for more than 10 years

Interventions/Control_2

Patients who have never used subcutaneous insulin injections

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

90 years-old >

Gender

Male and Female

Key inclusion criteria

- Patients with type 2 diabetes who was diagnosed for 10 years or more
- Patients aged 65 to 90 years
- MOCA-J score of 18 to 25
- Patients who have been receiving subcutaneous insulin injections for 10 years or more
- Patients who have never received subcutaneous insulin injections
- Patients who have provided written consent to participate in the study

Key exclusion criteria

- Patients who have been previously diagnosed with dementia
- Patients with underlying conditions that cause cognitive impairment
- Heavy alcohol users
- Patients taking medications that affect cognitive function
- Patients for whom PET scans are difficult to perform
- Patients deemed inappropriate by their attending physician

Target sample size

12


Research contact person

Name of lead principal investigator

1st name Fukumi
Middle name
Last name Yoshikawa

Organization

Toho university school of medicine

Division name

Division of Diabetes, Metabolism, and Endocrinology, Department of internal medicine.

Zip code

143-8541

Address

6-11-1Omori-nishi, Ota-ku

TEL

0337624151

Email

fukumi.yoshikawa@med.toho-u.ac.jp


Public contact

Name of contact person

1st name Fukumi
Middle name
Last name Yoshikawa

Organization

Toho university school of medicine

Division name

Division of Diabetes, Metabolism, and Endocrinology, Department of internal medicine.

Zip code

108-0014

Address

6-11-1Omori-nishi, Ota-ku, Tokyo

TEL

0337624151

Homepage URL


Email

fukumi.yoshikawa@med.toho-u.ac.jp


Sponsor or person

Institute

Toho university school of medicine

Institute

Department

Personal name



Funding Source

Organization

Toho university school of medicine

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethics Committee of Toho University Medical Center Omori Hospital

Address

6-11-1 Omori Nishi, Ota-Ku, Tokyo-to 143-8541 Japan

Tel

03-5763-6534

Email

omori.rinri@ext.toho-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

2025 Year 09 Month 18 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 07 Month 30 Day

Date of IRB


Anticipated trial start date

2025 Year 09 Month 19 Day

Last follow-up date

2026 Year 10 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

2025 Year 09 Month 17 Day

Last modified on

2025 Year 09 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000067581