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Self-determination Plus Instant Messaging for Smokers With Cancer

NCT05643469 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 1448

Last updated 2025-12-05

No results posted yet for this study

Summary

Objective: To test the efficacy of a self-determination theory-based intervention plus instant messaging to help smokers with cancer quit smoking.

Hypothesis to be tested: Subjects who are allowed to choose their quit schedule and receive regular instant messaging about smoking cessation will show a significantly higher biochemically validated quit rate than those who receive only brief advice to quit immediately.

Design and Subjects: An RCT will be conducted to 1448 smokers with cancer attending the outpatient clinics of five major acute care hospitals in Hong Kong for medical follow-up.

Instruments: A structured questionnaire will be used to assess subjects' smoking history and demographic and clinical characteristics. EQ-5D-5L will be used to measure subjects' quality of life.

Interventions: The intervention group will receive brief advice and will be invited to choose their own quit schedules (immediate or progressive) in the outpatient clinics. They will receive instant messaging about smoking cessation during the first 6-month follow-up period. The control group will receive brief advice to quit smoking immediately in the outpatient clinics, and will receive a placebo intervention during the first 6-month follow-up period. Subjects in both groups will receive leaflets on smoking cessation.

Conditions

Interventions

OTHER

Self-determination theory-based intervention plus instant messaging

subjects will receive brief interventions using the AWARD model and they will be allowed to select their own quit schedules (quit immediately, or quit progressively) with the ultimate goal of complete cessation. Follow-up booster intervention with WhatsApp/WeChat messages to help them to adhere to their schedules and independent 1-minute videos will be delivered.

OTHER

AWARD model

Subjects will receive a brief intervention using the AWARD model and all of them will advise to quit immediately. Only general health advice via WhatsApp/WeChat will be delivered.

Sponsors & Collaborators

  • Chinese University of Hong Kong

    lead OTHER

Principal Investigators

  • Ho Cheung William Li, PhD · Chinese University of Hong Kong

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-07-03
Primary Completion
2026-05-31
Completion
2026-05-31

Countries

  • Hong Kong

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05643469 on ClinicalTrials.gov