UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000060832
Receipt number R000069607
Scientific Title A prospective observational study evaluating the effectiveness of a digital peer-support app-based smoking cessation program without pharmacotherapy
Date of disclosure of the study information 2026/03/05
Last modified on 2026/03/05 11:10:04

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Basic information

Public title

Effectiveness of a digital peer-support app-based smoking cessation program without pharmacotherapy: a prospective observational study

Acronym

DPSA-SC

Scientific Title

A prospective observational study evaluating the effectiveness of a digital peer-support app-based smoking cessation program without pharmacotherapy

Scientific Title:Acronym

DPSA-SC

Region

Japan


Condition

Condition

Current Smokers

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To examine whether tobacco product type is associated with smoking cessation success and whether app use frequency is associated with smoking cessation success.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Smoking cessation success rate, defined as self-reported complete abstinence for at least 4 consecutive weeks at the end of the 12-week program

Key secondary outcomes



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

20 years-old <=

Age-upper limit

75 years-old >

Gender

Male and Female

Key inclusion criteria

-Owns an iOS or Android smartphone.
-Enrolled in the company corporate health insurance program.
-Self-reported smoking of at least 1 cigarette per day, including novel tobacco products such as heated tobacco products and e-cigarettes.

Key exclusion criteria

-Non-smokers.
-Not using the app or does not own an iOS or Android smartphone.
-Not enrolled in the company corporate health insurance program.

Target sample size

350


Research contact person

Name of lead principal investigator

1st name Shota
Middle name
Last name Yoshihara

Organization

Kitasato University Graduate School

Division name

Medical Sciences

Zip code

252-0373

Address

1-15-1 Kitazato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan

TEL

042-778-9305

Email

yoshihara.shota@st.kitasato-u.ac.jp


Public contact

Name of contact person

1st name Shota
Middle name
Last name Yoshihara

Organization

Kitasato University

Division name

Medical Sciences

Zip code

252-0373

Address

1-15-1 Kitazato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan

TEL

042-778-9305

Homepage URL


Email

yoshihara.shota@st.kitasato-u.ac.jp


Sponsor or person

Institute

Kitasato University

Institute

Department

Personal name



Funding Source

Organization

Conflicts of interest were reviewed by the Kitasato University Conflict of Interest Committee and are appropriately managed.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Research Ethics Committee of Kitasato University School of Allied Health Sciences

Address

1-15-1 Kitazato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan

Tel

0427789602

Email

a-soumu@kitasato-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

2026 Year 03 Month 05 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

Open public recruiting

Date of protocol fixation

2025 Year 11 Month 01 Day

Date of IRB

2026 Year 01 Month 19 Day

Anticipated trial start date

2026 Year 03 Month 01 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

This study is a single-arm prospective observational study.
Participants will take part in a 3-month smoking cessation program using a digital peer-support app and will complete questionnaires (including smoking status) at baseline and at 3 months (program end).
The primary outcome is the smoking cessation success rate.
Logistic regression analysis will be used to estimate the odds ratio for smoking cessation success.


Management information

Registered date

2026 Year 03 Month 05 Day

Last modified on

2026 Year 03 Month 05 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069607