NCT04772521

Brief Summary

Smoking causes cardiovascular and respiratory diseases, cancers and diabetes, and it has been a leading risk factor for death globally. Despite the availability of smoking cessation services locally, most smokers do not use such services. Workplace is one of the most convenient platforms to provide smoking cessation services and over 55% of smokers are employed according to the local population-based survey. Moreover, The COVID-19 pandemic and new normal increase in mental health burden to people in the workplace. An online survey during the pandemic found 88% of Hong Kong employees suffered from stress at work during the past 7 days. Mental health can be both precursors and consequences of smoking. However, the effectiveness of a smoking cessation programme conducted in workplace is yet to be examined in Hong Kong, and the mental health support for smoking employees in promoting smoking cessation is not clear. Thus, this study aims to test, by a 2-arm RCT, the effectiveness of an intervention of which includes mobile phone-based intervention on reducing mental health symptoms and smoking cessation in workplaces in Hong Kong; identify facilitators and barriers of successful policy implementation and quitting; examine and evaluate the company environment and their policies in promoting smoking cessation.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
300

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Apr 2021

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 23, 2021

Completed
3 days until next milestone

First Posted

Study publicly available on registry

February 26, 2021

Completed
2 months until next milestone

Study Start

First participant enrolled

April 15, 2021

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2023

Completed
Last Updated

December 8, 2023

Status Verified

December 1, 2023

Enrollment Period

2.7 years

First QC Date

February 23, 2021

Last Update Submit

December 6, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Self-reported 7-day point prevalence quit rate

    Smokers who did not smoke even a puff in the 7 days preceding the follow-up

    6-month

Secondary Outcomes (7)

  • Self-reported 7-day point prevalence quit rate

    9-,12-month

  • Biochemical validation of smoking status

    6-, 9-, and 12-month

  • Self-reported reduction cigarette rate

    6-, 9-, and 12-month

  • Self-reported perceived stress

    6-, 9-, and 12-month

  • Self-reported depression symptoms

    6-, 9-, and 12-month

  • +2 more secondary outcomes

Study Arms (2)

Intervention

EXPERIMENTAL

Personalized chat-based support and nicotine replacement therapy sampling (NRT-S) for continued smokers at 6 months for intervention group

Behavioral: General health talkBehavioral: Personalized chat-based interactionsBehavioral: Phone follow-up/counselling serviceDrug: Mailed nicotine replacement therapy (NRT)

Control

PLACEBO COMPARATOR

Regular text-based support and nicotine replacement therapy sampling (NRT-S) for continued smokers at 6 months for control group

Behavioral: General health talkBehavioral: Text messageBehavioral: Phone follow-up/counselling serviceDrug: Mailed nicotine replacement therapy (NRT)

Interventions

Health talk provided information about hazards of tobacco (active smoking, second- and third-hand smoke), benefits of quitting smoking and methods to quit smoking.

ControlIntervention

Individual chat-based interactions last 3 months and consist of 2 parts. First part is regular message. The schedule will be adjusted according to the participants' quitting and mental health status. The second part includes real-time psycho-behavioral intervention delivered by trained cessation counsellors using the acceptance and commitment therapy (ACT) model for smoking cessation and reliving mental health problems. The conversation is based on participants' socio-demographic characteristics, smoking habit at baseline, and updated smoking status and mental health status assessed during online conversation and the baseline questionnaire.

Intervention
Text messageBEHAVIORAL

Regular messages will be sent twice per month within 3 months. These messages covers simple cessation advice and reminders for follow-ups.

Control

The intervention outcomes and participants' smoking status will be followed up regularly via telephone interviews (15 - 30 minutes).

ControlIntervention

Full course of NRT treatment (8 weeks) will be provided to all participants who are still smoking at 6-month follow-up and request, or willing to use NRT after advice from counsellors. Medications will be mailed from the smoking cessation clinics.

Also known as: NRT
ControlIntervention

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Hong Kong residents aged 18 or above
  • Smoke at least 1 cigarette per day or use e-cigarette (EC) or heated tobacco product (HTP) daily
  • PSS-4 score ≥ 6, or GAD-2 score≥ 3, or PHQ-2 score≥ 3
  • Able to communicate in Cantonese/Mandarin and read Chinese
  • Able to use instant messaging tool (e.g. WhatsApp) for communication.
  • Stay in Hong Kong during the intervention and follow-up periods (12 months)

You may not qualify if:

  • Smokers who are psychologically or physically unable to communicate
  • Currently following other smoking cessation program(s)
  • Smokers who have severe mental illness

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

School of Nursing, The University of Hong Kong

Hong Kong, Hong Kong

Location

MeSH Terms

Conditions

Smoking Cessation

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Study Officials

  • Man Ping Wang, PhD

    The University of Hong Kong

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

February 23, 2021

First Posted

February 26, 2021

Study Start

April 15, 2021

Primary Completion

December 30, 2023

Study Completion

December 30, 2023

Last Updated

December 8, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will not share

Locations