CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 590 enrolled
Drug / intervention
Standard smoking cessation treatment +2 morebehavioral
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05370352
NCT05370352N/ACompleted

Effectiveness of Mobile Chat Messaging for Preventing Relapse in Smokers Who Have Recently Quit Smoking: a Randomised Controlled Trial

The University of Hong Kong·interventional·Posted May 11, 2022·Updated Nov 20, 2025

In Brief

A clinical study evaluating Standard smoking cessation treatment, Personalised chat messaging, and 1 other intervention for Smoking Cessation. Completed, enrolled 590 participants across 2 sites.

Detailed Summary

Most smokers return to smoking (relapse) after making a quit attempt, but evidence of effective intervention to prevent relapse is scarce. Taking advantage of recent advances in mobile technologies, this study aims to evaluate the effectiveness of a mobile chat messaging-based relapse prevention intervention in promoting successful quitting in people who recently quit smoking (recent abstainers) using a randomised controlled trial design.

Study Details

Timeline

N/ACompletedFinished
2023202420252026
First PostedMay 11, 2022
Enrollment StartMar 14, 2023
Primary CompletionFeb 16, 2025
Study CompletionAug 10, 2025
TodayJul 2, 2026
Enrollment to primary: 1.9 yearsPosted 4.1 years ago

Interventions

Standard smoking cessation treatmentbehavioral

Standard smoking cessation treatment (behavioural and pharmacotherapy) provided by Tung Wah Group of Hospitals Integrated Centre on Smoking Cessation

Personalised chat messagingbehavioral

Personalised chat messaging focusing on smoking relapse prevention for 3 months from randomisation. A trained counsellor will interact with a participant individually and provide relapse prevention advice via WhatsApp. The participant can also access a supportive chatbot in WhatsApp, which will provide on-demand smoking relapse prevention support when the counsellor is not available (e.g., during nighttime).

SMS text messagingbehavioral

SMS text messaging on generic information about the harms of smoking and the benefits of quitting for 3 months from randomisation.