UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000032936
Receipt number R000037546
Scientific Title The evaluation of the efficacy of olfactory stimulation as a means of improving cognitive function: A randomised controlled trial
Date of disclosure of the study information 2018/06/11
Last modified on 2020/04/03 01:15:31

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Basic information

Public title

The evaluation of the efficacy of olfactory stimulation as a means of improving cognitive function: A randomised controlled trial

Acronym

The evaluation of the efficacy of olfactory stimulation as a means of improving cognitive function: A randomised controlled trial

Scientific Title

The evaluation of the efficacy of olfactory stimulation as a means of improving cognitive function: A randomised controlled trial

Scientific Title:Acronym

The evaluation of the efficacy of olfactory stimulation as a means of improving cognitive function: A randomised controlled trial

Region

Japan


Condition

Condition

healthy elderly people

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate whether the rehabilitation of odor stimulation to health elderly people have an efficacy for the improvement of cognitive function, mental condition and olfactory function

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

PASAT(Paced Auditory Serial Addition Test)

Key secondary outcomes

MMSE, PHQ-9, GAD-7, SDISS,Well-being(the relevant four items from CES-D), RAVLT, Symbol Digit Modalities Test, Pittsburgh Sleep Quality Index, T&T Olfactometer


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -investigator(s) and assessor(s) are blinded

Control

Placebo

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

Odor stimulation by aromas (two hours exposure to odor stimulation twice a day in the morning and evening over three months)

Interventions/Control_2

Odor stimulation by ethanol (two hours exposure to odor stimulation twice a day in the morning and evening over three months)

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

80 years-old >

Gender

Male and Female

Key inclusion criteria

Ability to both understand and agree with informed consent in Japanese

Ability to perform the all tests required on the designated day after the agreement with informed consent

A score of 24 or more on the MMSE

Olfactory ability demonstrated as normal by the test of T&T olfactometer

Key exclusion criteria

Any substance addiction (except nicotine addiction) in the current or past history

Education history of 6 years or less

Any substance addiction (except nicotine addiction) in the current or past history

Currently receiving any psychotropic medication such as antidepressant, antipsychotics or tranquilizers including sleeping pills

Medical history of psychiatric or neurological diseases, including schizophrenia, depressive disorders or anxiety disorders, potentially influencing the olfactory ability (ruled out by the M.I.N.I.(Mini-International Neuropsychiatric Interview)

Severe physical disease including liver, renal or endocrine disability

Any disease potentially causing the olfactory disability

Routinely receiving aromatherapy treatments

Routinely using softener, fragrance or perfume with strong smell

Target sample size

120


Research contact person

Name of lead principal investigator

1st name Hajime
Middle name
Last name Tabuchi

Organization

Keio University School of Medicine

Division name

Department of Neuropsychiatry

Zip code

160-8582

Address

35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan

TEL

03-3353-1211

Email

tabuchi@a8.keio.jp


Public contact

Name of contact person

1st name Mika
Middle name
Last name Konishi

Organization

Keio University School of Medicine

Division name

Department of Neuropsychiatry

Zip code

160-8582

Address

35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan

TEL

03-3353-1211

Homepage URL


Email

mikita1204@keio.jp


Sponsor or person

Institute

Keio University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

The Research Institute of Economy, Trade and Industry(RIETI)

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

Keio University Hospital Clinical and Translational Research Center

Address

35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582 Japan

Tel

03-3353-1211

Email

keio@esct.bvits.com keio.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

2018 Year 06 Month 11 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

120

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

2018 Year 12 Month 25 Day

Date of IRB

2018 Year 12 Month 25 Day

Anticipated trial start date

2019 Year 01 Month 10 Day

Last follow-up date

2019 Year 06 Month 07 Day

Date of closure to data entry

2019 Year 07 Month 03 Day

Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2018 Year 06 Month 10 Day

Last modified on

2020 Year 04 Month 03 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000037546


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name