UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000061583
Receipt number R000070293
Scientific Title The Effect of Text Messages Tailored to Psychological Characteristics on Enhancing Intentions to Quit Smoking: A Web-Based Survey Study
Date of disclosure of the study information 2026/05/15
Last modified on 2026/05/13 10:58:08

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Basic information

Public title

The Effect of Text Messages Tailored to Psychological Characteristics on Enhancing Intentions to Quit Smoking: A Web-Based Survey Study

Acronym

A Preliminary Study on Text Messages Designed to Promote Smoking Cessation

Scientific Title

The Effect of Text Messages Tailored to Psychological Characteristics on Enhancing Intentions to Quit Smoking: A Web-Based Survey Study

Scientific Title:Acronym

A Preliminary Study on Text Messages Designed to Promote Smoking Cessation

Region

Japan


Condition

Condition

Not specified

Classification by specialty

Not applicable

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine changes in intention to quit smoking after presenting messages tailored to psychological characteristics.
To examine the acceptability of messages tailored to psychological characteristics, including their comprehensibility and persuasiveness.

Basic objectives2

Others

Basic objectives -Others

Smoking cessation intention

Trial characteristics_1

Exploratory

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

Smoking cessation intention

Key secondary outcomes

Message comprehensibility: Ease of understanding the presented message.
Message persuasiveness / acceptability: The extent to which the message is acceptable or convincing to the participant.
Intention to use smoking cessation treatment: Whether the participant intends to use smoking cessation treatment in the future.
Type-specific congruence


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

Prevention

Type of intervention

Other

Interventions/Control_1

Presentation of text messages

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

Aged 20 years or older
Current smokers, defined as individuals who have smoked within the past 7 days
Able to respond in Japanese
Provided informed consent to participate in this study

Key exclusion criteria

Aged under 20 years
Holders of medical qualifications, to avoid bias due to medical knowledge
Students enrolled in universities, vocational schools, or other institutions for obtaining medical qualifications, to avoid bias due to medical knowledge
Individuals who do not provide consent to participate in the study
Individuals otherwise deemed inappropriate for participation by the principal investigator

Target sample size

500


Research contact person

Name of lead principal investigator

1st name Miyuki
Middle name
Last name Odawara

Organization

National Cancer Center

Division name

Institute for Cancer Control Division of Behavioral Sciences

Zip code

104-0045

Address

5-1-1 Tsukiji Chuo-ku Tokyo

TEL

03-3547-5201

Email

modawara@ncc.go.jp


Public contact

Name of contact person

1st name Hikari
Middle name
Last name Nagao

Organization

National Cancer Center

Division name

Institute for Cancer Control Division of Behavioral Sciences

Zip code

104-0045

Address

5-1-1 Tsukiji Chuo-ku Tokyo

TEL

03-3547-5201

Homepage URL


Email

hnagao@ncc.go.jp


Sponsor or person

Institute

National Cancer Center

Institute

Department

Personal name



Funding Source

Organization

MEXT(Japan)

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

National Cancer Center Institutional Review Board

Address

5-1-1 Tsukiji Chuo-ku Tokyo

Tel

03-3542-2511

Email

irst@ncc.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



Other administrative information

Date of disclosure of the study information

2026 Year 05 Month 15 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 04 Month 30 Day

Date of IRB

2026 Year 05 Month 13 Day

Anticipated trial start date

2026 Year 05 Month 17 Day

Last follow-up date

2028 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 15 Day

Last modified on

2026 Year 05 Month 13 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070293