UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000061621
Receipt number R000070500
Scientific Title Exploratory Evaluation of Systemic Amyloid Deposition Using 18F-Flutemetamol PET/CT
Date of disclosure of the study information 2026/05/20
Last modified on 2026/05/18 23:49:59

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Basic information

Public title

Flutemetamol PET/CT for whoLe-body evalUation of amyloid deposiTion and its systEmic distribution

Acronym

FLUTE study

Scientific Title

Exploratory Evaluation of Systemic Amyloid Deposition Using 18F-Flutemetamol PET/CT

Scientific Title:Acronym

FLUTE study

Region

Japan


Condition

Condition

Mild Cognitive Impairment and Alzheimer's Disease

Classification by specialty

Neurology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To exploratorily evaluate the distribution and extent of amyloid deposition in whole-body organs, including the brain, using 18F-flutemetamol PET/CT with additional neck-to-knee imaging beyond standard brain acquisition, and to investigate the association between extracranial amyloid deposition, including gastrointestinal involvement, and cerebral amyloid pathology.

Basic objectives2

Others

Basic objectives -Others

This is an exploratory imaging and disease-characterization study using 18F-flutemetamol PET/CT to evaluate whole-body amyloid distribution and its association with cerebral amyloid pathology, and is not intended to assess efficacy, safety, pharmacokinetics, or bioavailability of the radiopharmaceutical.

Trial characteristics_1

Exploratory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable


Assessment

Primary outcomes

Presence, distribution, and quantitative uptake (SUV) of 18F-flutemetamol in whole-body organs and their association with cerebral amyloid deposition.

Key secondary outcomes

Association between APOE genotype, particularly APOE epsilon 4, and whole-body amyloid uptake.
Association between blood/cerebrospinal fluid biomarkers (Abeta1-40, Abeta1-42, Abeta42/40 ratio, and phosphorylated tau) and whole-body amyloid uptake.
Association between whole-body amyloid uptake patterns and clinical manifestations, including cognitive impairment, heart failure, and arrhythmia.
Association between extracranial amyloid uptake, including gastrointestinal involvement, and cerebral amyloid deposition.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

No need to know


Intervention

No. of arms

1

Purpose of intervention

Diagnosis

Type of intervention

Maneuver

Interventions/Control_1

In addition to standard brain 18F-flutemetamol PET/CT imaging, additional neck-to-knee whole-body PET/CT imaging including low-dose CT will be performed for research purposes. The additional acquisition time is approximately 10 minutes to evaluate amyloid uptake in whole-body organs.

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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Adults aged 20 years or older diagnosed with mild cognitive impairment (MCI) or mild Alzheimer's disease
Patients scheduled to undergo clinically indicated 18F-flutemetamol PET/CT at our institution
Individuals who provide written informed consent for study participation

Key exclusion criteria

Individuals with contraindications to PET examination (e.g., severe allergy history)
Individuals unable or unwilling to provide informed consent
Minors, pregnant women, or women with possible pregnancy
Patients with severe cognitive impairment judged incapable of providing informed consent
Individuals considered unsuitable for study participation by the investigator or treating physician

Target sample size

15


Research contact person

Name of lead principal investigator

1st name Tomoya
Middle name
Last name Kotani

Organization

Kyoto Prefectural University of Medicine

Division name

Radiology

Zip code

602-8566

Address

Kyoto-shi, Kamigyo-ku Kajii-cho, Kawaramachi-Hirokoji, JAPAN

TEL

0752515210

Email

kotani@koto.kpu-m.ac.jp


Public contact

Name of contact person

1st name Tomoya
Middle name
Last name Kotani

Organization

Kyoto Prefectural University of Medicine

Division name

Radiology

Zip code

602-8566

Address

Kyoto-shi, Kamigyo-ku Kajii-cho, Kawaramachi-Hirokoji, JAPAN

TEL

0752515210

Homepage URL


Email

kotani@koto.kpu-m.ac.jp


Sponsor or person

Institute

Kyoto Prefectural University of Medicine

Institute

Department

Personal name

Tomoya Kotani


Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto Prefectural University of Medicine

Address

Kyoto-shi, Kamigyo-ku Kajii-cho, Kawaramachi-Hirokoji, JAPAN

Tel

0752515210

Email

kotani@koto.kpu-m.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

京都府


Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 05 Month 20 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 03 Month 25 Day

Date of IRB

2026 Year 04 Month 23 Day

Anticipated trial start date

2026 Year 05 Month 20 Day

Last follow-up date

2027 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

2026 Year 05 Month 18 Day

Last modified on

2026 Year 05 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000070500