UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059945
Receipt number R000068561
Scientific Title Assessment of neuroinflammation and immune function for predicting the onset and improving the prognosis of dementia
Date of disclosure of the study information 2025/12/08
Last modified on 2025/12/02 15:00:14

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Basic information

Public title

Assessment of neuroinflammation and immune function for predicting the onset and improving the prognosis of dementia

Acronym

AIM-Brain study

Scientific Title

Assessment of neuroinflammation and immune function for predicting the onset and improving the prognosis of dementia

Scientific Title:Acronym

AIM-Brain study

Region

Japan


Condition

Condition

Older and younger adults with dementia and those with mild cognitive impairment, Individuals with normal cognitive function

Classification by specialty

Neurology Geriatrics Psychiatry
Radiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The aim of this study is to clarify how neuroinflammation and immune function influence the onset, clinical manifestations, and prognosis of dementia, including Alzheimer's disease, a condition whose risk increases with aging. By elucidating these mechanisms, the study seeks to promote the development of new therapeutic strategies targeting brain inflammation and immune function.

Basic objectives2

Others

Basic objectives -Others

Assessment of disease pathology

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

To clarify the relationship between cognitive function and blood biomarkers reflecting neuroinflammation and immune function in late-onset dementia.
To clarify the relationship between cognitive function and blood biomarkers reflecting neuroinflammation and immune function in early-onset dementia.

Key secondary outcomes

To elucidate the relationship between activated-astrocyte PET imaging and blood biomarkers reflecting neuroinflammation and immune function.
To elucidate the association between regional astrocyte activation and cognitive function in late-onset dementia.
To elucidate the association between regional astrocyte activation and microglial density or amyloid pathology.
To elucidate the association between regional astrocyte activation and cognitive function in early-onset dementia.
To elucidate the association between regional astrocyte activation and tau pathology.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Diagnosis

Type of intervention

Medicine

Interventions/Control_1

Activated-astrocyte PET imaging ([18F]SMBT-1-PET), Tau PET ([18F]Florzolotau-PET)

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

40 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1) Participants with late-onset dementia (including moderate stages) and those with mild cognitive impairment
1. Individuals who have provided written informed consent, either by themselves or through a family member (legal representative).
2. Individuals accompanied by a study partner who can observe and evaluate the participant's condition, and for whom written consent from the study partner has also been obtained.
3. Men and women diagnosed with dementia or mild cognitive impairment, with age at onset of 65 years or older.
4. Individuals who have agreed to the storage of biological samples in the NCGG Biobank.

2) Participants with early-onset dementia (including moderate stages) and those with mild cognitive impairment
1. Individuals who have provided written informed consent, either by themselves or through a family member (legal representative).
2. Individuals accompanied by a study partner who can observe and evaluate the participant's condition, and for whom written consent from the study partner has also been obtained.
3. Men and women diagnosed with dementia or mild cognitive impairment, with age at onset younger than 65 years.
4. Individuals who have agreed to the storage of biological samples in the NCNP Biobank.

3) Cognitively normal participants
1. Individuals who voluntarily apply for participation and provide written informed consent.
2. Men and women aged 40 years or older at the time of consent.
3. Individuals with an MMSE score of 24 or higher.
4. Individuals who meet the following WMS-R Logical Memory II criteria:
  Score >= 9 for those with >=16 years of education
  Score >= 5 for those with 10-15 years of education
  Score >= 3 for those with 0-9 years of education
5. Individuals who agree to the storage of biological samples in the Biobank.

Key exclusion criteria

1) Exclusion criteria applicable to all participants
1. Individuals judged by the principal investigator or study physicians to be at a higher-than-usual risk of health injury due to participation in this study.
2. Individuals deemed unable to undergo the study examinations.
3. Individuals with severe comorbidities, or a history of such conditions, for whom the principal investigator or study physicians consider participation inappropriate.
4. Individuals who regularly take steroidal or non-steroidal anti-inflammatory drugs, or immunosuppressive agents.
5. Individuals who are unable to remain still during examinations (applicable only when PET imaging is performed).
6. Individuals with ferromagnetic implants or materials in the body (including tattoos and permanent makeup, pacemakers, etc.) (applicable only when MRI is performed).
7. Individuals with severe claustrophobia (applicable only when MRI is performed).
8. Individuals with a history of drug allergy (applicable only when PET imaging is performed).
9. Pregnant or possibly pregnant women, and breastfeeding women (applicable only when PET imaging is performed).
10. Any other individuals deemed unsuitable for participation by the principal investigator or study physicians.

Exclusion criteria by participant category

1) Cognitively normal participants
1. Individuals with developmental or psychiatric conditions that may interfere with study examinations.
2. Individuals who have undergone nuclear medicine examinations within six months prior to obtaining consent, due to radiation exposure considerations.

Target sample size

80


Research contact person

Name of lead principal investigator

1st name Yasuyuki
Middle name
Last name Kimura

Organization

National Center for Geriatrics and Gerontology

Division name

Department of Clinical and Experimental Neuroimaging

Zip code

474-8511

Address

7-430 Morioka-cho, Obu, Aichi

TEL

0562-46-2311

Email

yazkim@ncgg.go.jp


Public contact

Name of contact person

1st name Yasuyuki
Middle name
Last name Kimura

Organization

National Center for Geriatrics and Gerontology

Division name

Department of Clinical and Experimental Neuroimaging

Zip code

474-8511

Address

7-430 Morioka-cho, Obu, Aichi

TEL

0562-46-2311

Homepage URL


Email

yazkim@ncgg.go.jp


Sponsor or person

Institute

National Center for Geriatrics and Gerontology

Institute

Department

Personal name



Funding Source

Organization

Japan Health Research Promotion Bureau

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor

National Center of Neurology and Psychiatry

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethics and Conflict of Interest Committee, National Center for Geriatrics and Gerontology

Address

7-430 Morioka-cho, Obu, Aichi

Tel

0562-46-2311

Email

yaday@ncgg.go.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

国立長寿医療研究センター(愛知県)、国立精神・神経医療研究センター(東京都)


Other administrative information

Date of disclosure of the study information

2025 Year 12 Month 08 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 09 Month 29 Day

Date of IRB

2025 Year 09 Month 29 Day

Anticipated trial start date

2025 Year 12 Month 08 Day

Last follow-up date

2029 Year 03 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 12 Month 02 Day

Last modified on

2025 Year 12 Month 02 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068561