UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000054281
Receipt number R000061987
Scientific Title A study of changes in treatment satisfaction and its factors in patients treated with lecanemab
Date of disclosure of the study information 2024/05/01
Last modified on 2025/11/18 12:30:12

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Basic information

Public title

A study of changes in treatment satisfaction and its factors in patients treated with lecanemab

Acronym

A study of treatment satisfaction in lecanemab-treated patients

Scientific Title

A study of changes in treatment satisfaction and its factors in patients treated with lecanemab

Scientific Title:Acronym

A study of treatment satisfaction in lecanemab-treated patients

Region

Japan


Condition

Condition

early Alzheimer's disease

Classification by specialty

Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To assess longitudinal treatment satisfaction and identify factors associated with changes in treatment satisfaction with lecanemab, the first disease-modifying drug for Alzheimer's disease to be approved in Japan

Basic objectives2

Others

Basic objectives -Others

treatment satisfaction

This study aims to evaluate the longitudinal changes in treatment satisfaction (TSQM) over a three-year period beginning six months after the initiation of lecanemab therapy, using linear mixed-effects models.
Given the potential for treatment satisfaction to decline over time due to disease progression and the burden of ongoing infusions and assessments, as well as the possibility that satisfaction may be maintained or even increase as patients perceive the long-term benefits of a disease-modifying therapy, we do not presuppose a specific direction of change.
Accordingly, the primary objective is to estimate the presence or absence of a time effect on TSQM, along with the magnitude and 95% confidence intervals of these longitudinal changes, to clarify the actual trajectory of treatment satisfaction in real-world clinical practice.

Trial characteristics_1


Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Treatment Satisfaction Questionnaire for Medication (TSQM) score

Key secondary outcomes

Neuropsychiatric Inventory Questionnaire(NPI-Q) score, Everyday memory checklist(EMC) score, the presence of Amyloid Related Imaging Abnormalities(ARIA)


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

40 years-old <=

Age-upper limit

90 years-old >

Gender

Male and Female

Key inclusion criteria

1) Patients diagnosed with probable/possible AD dementia or MCI due to AD-intermediate/high likelihood according to the 2011 NIA-AA clinical criteria.
2) Patients with a positive amyloid PET or cerebrospinal fluid (CSF) Ab42/40 ratio.
3) Patients who will receive lecanemab (consent can be obtained up to 26 weeks after administration even if the drug has been administered).
4) Patients who are at least aged 40 and less than 90 at the time of obtaining consent.
5) Individuals whose written consent to participate in the study has been obtained from them.

Patients who meet the above criteria and their carers will be included.

Key exclusion criteria

1) Persons with uncontrolled physical illnesses.
2) Persons who have another nationality or speak a language other than Japanese as their mother tongue.

Patients who meet the above criteria and their carers are excluded from the eligible participants.

Target sample size

160


Research contact person

Name of lead principal investigator

1st name Manabu
Middle name
Last name Ikeda

Organization

Osaka University Graduate School of Medicine

Division name

Department of Psychiatry

Zip code

565-871

Address

D3 2-2, Yamadaoka, Suita, Osaka, Japan

TEL

06-6879-3051

Email

mikeda@psy.med.osaka-u.ac.jp


Public contact

Name of contact person

1st name Yuto
Middle name
Last name Satake

Organization

Osaka University Graduate School of Medicine

Division name

Department of Psychiatry

Zip code

565-871

Address

D3 2-2, Yamadaoka, Suita, Osaka, Japan

TEL

06-6879-3051

Homepage URL


Email

y.satake@psy.med.osaka-u.ac.jp


Sponsor or person

Institute

Osaka University

Institute

Department

Personal name



Funding Source

Organization

Osaka University

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

Ethical Review Board Osaka University Hospital

Address

1-1 Yamadaoka, Suita, Osaka, Japan

Tel

06-6877-5111

Email

rinri@hp-crc.med.osaka-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

2024 Year 05 Month 01 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

74

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

No longer recruiting

Date of protocol fixation

2024 Year 04 Month 12 Day

Date of IRB

2024 Year 04 Month 15 Day

Anticipated trial start date

2024 Year 05 Month 01 Day

Last follow-up date

2028 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Clinical data including patient satisfaction will be collected at 6 months, 1 year, 1.5 years, 2 years and 3 years after the start of recanemab treatment; all MRI imaging data obtained during the 3-year follow-up will be collected. Patients within six months of receiving RECANEMAB will be eligible for recruitment.


Management information

Registered date

2024 Year 04 Month 29 Day

Last modified on

2025 Year 11 Month 18 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000061987