Mixed and Match vs One-size-fits-all

Sponsor
The Hong Kong Polytechnic University (Other)
Overall Status
Not yet recruiting
CT.gov ID
NCT05297370
Collaborator
(none)
500
2
18

Study Details

Study Description

Brief Summary

Most existing smoking cessation services are based on '5A's' and '5R's' models which are recognized by the World Health Organization as a standardized tool for smoking cessation. While there are more techniques that are known to be effective and could be incorporated in existing smoking cessation interventions to further promote their effectiveness. This study is to examine the effectiveness SDTM in assisting adult smokers in Hong Kong to quit.

Condition or Disease Intervention/Treatment Phase
  • Behavioral: Mixed and match Intervention
  • Other: Control
N/A

Detailed Description

A randomized controlled trial (RCT) will be conducted. One-hundred adult smokers aged 25 or above will be recruited from smoking hotspots in Hong Kong. Participants in the intervention group will be contacted by our trained research assistant to receive a telephone counselling session at baseline. Participants can choose to receive their own smoking cessation treatment options from our menu. Control group participants will only receive a self-help quitting leaflet

Study Design

Study Type:
Interventional
Anticipated Enrollment :
500 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Mixed and Match Versus One-size-fits-all: A Randomized Controlled Trial of Self-determination Theory on a Menu of Smoking Cessation Options (SDTM) Among Adult Smokers
Anticipated Study Start Date :
Jul 1, 2022
Anticipated Primary Completion Date :
Dec 31, 2023
Anticipated Study Completion Date :
Dec 31, 2023

Arms and Interventions

Arm Intervention/Treatment
Other: Mixed and Match

Participants can choose to receive their own smoking cessation treatment options from our menu.

Behavioral: Mixed and match Intervention
Participants will receive a brief 15-minute counselling session based on the 5A's' and '5R's' models by our trained research assistant. Participants will be able to choose their smoking cessation treatment options from our menu.

Other: Control

Participants will receive a self-help quitting leaflet

Other: Control
Participants in the control group will receive a self-help quitting leaflet issued by the TACO

Outcome Measures

Primary Outcome Measures

  1. Self-reported abstinence at 6-month follow-up [At 6-month follow-up]

    participants will be asked about their self-reported abstinence in the past 7 and 30 days

  2. Biochemically validated abstinence [At 6 months follow-up]

    validate the self-reported abstinence if the level of carbon monoxide in expired air was less than 4 parts per million and saliva cotinine level was less than100 ng/mL in parallel tests

  3. Self-efficacy at 6-month follow-up [At 6-month follow-up]

    Participants will be asked about their self-efficacy in quitting. The score ranges from 0 to 10. Higher scores represent a higher self-efficacy.

Secondary Outcome Measures

  1. Screening rate [at day 1]

    calculated as the number of smokers screened at smoking hotspots by the RA divided by number of smokers available

  2. Eligibility rate [at day 1]

    calculated by dividing the number of smokers who are eligible by the number who are screened.

  3. Randomization rate [at day 1]

    calculated by dividing the number of smokers who are randomized into intervention and control groups by those who provide consent.

  4. Attendance rate [Immediately after the training workshop]

    calculated by dividing the number of smokers who complete the intervention by those who are randomized.

  5. Retention rate at 1-week follow-up [At 1-week follow-up]

    calculated by dividing the number of smokers who remain in the study by those who are randomized

  6. Retention rate at 1-month follow-up [At 1-month follow-up]

    calculated by dividing the number of smokers who remain in the study by those who are randomized

  7. Retention rate at 6-month follow-up [At 6-month follow-up]

    calculated by dividing the number of smokers who remain in the study by those who are randomized

  8. Retention rate at 3-month follow-up [At 3-month follow-up]

    calculated by dividing the number of smokers who remain in the study by those who are randomized

  9. Adherence to intervention protocol at 1-week follow-up [At 1-week follow-up]

    calculated by dividing the number of smokers who follow and practice the chosen treatment options by those who are randomized

  10. Adherence to intervention protocol at 1-month follow-up [At 1-month follow-up]

    calculated by dividing the number of smokers who follow and practice the chosen treatment options by those who are randomized

  11. Adherence to intervention protocol at 3-month follow-up [At 3-month follow-up]

    calculated by dividing the number of smokers who follow and practice the chosen treatment options by those who are randomized

  12. Adherence to intervention protocol at 6-month follow-up [At 6-month follow-up]

    calculated by dividing the number of smokers who follow and practice the chosen treatment options by those who are randomized

  13. Complete rate at 1-week follow-up [At 1-week follow-up]

    calculated by dividing the number of smokers who returned questionnaires by the number of questionnaires distributed

  14. Complete rate at 1-month follow-up [At 1-month follow-up]

    calculated by dividing the number of smokers who returned questionnaires by the number of questionnaires distributed

  15. Complete rate at 3-month follow-up [At 3-month follow-up]

    calculated by dividing the number of smokers who returned questionnaires by the number of questionnaires distributed

  16. Complete rate at 6-month follow-up [At 6-month follow-up]

    calculated by dividing the number of smokers who returned questionnaires by the number of questionnaires distributed

  17. Missing data at 1-week follow-up [At 1-week follow-up]

    calculated as the percentage of missing values in the dataset

  18. Missing data at 1-month follow-up [At 1-month follow-up]

    calculated as the percentage of missing values in the dataset

  19. Missing data at 3-month follow-up [At 3-month follow-up]

    calculated as the percentage of missing values in the dataset

  20. Missing data at 6-month follow-up [At 6-month follow-up]

    calculated as the percentage of missing values in the dataset

  21. Adverse events at 6-month follow-up [At 6-month follow-up]

    Participants will report any unfavorable and unintended events

  22. Adverse events at 1-week follow-up [At 1-week follow-up]

    Participants will report any unfavorable and unintended events

  23. Adverse events at 1-month follow-up [At 1-month follow-up]

    Participants will report any unfavorable and unintended events

  24. Adverse events at 3-month follow-up [At 3-month follow-up]

    Participants will report any unfavorable and unintended events

  25. Self-reported abstinence at 1-week follow-up [At 1-week follow-up]

    Participants will be asked about their self-reported abstinence in the past 7 and 30 days

  26. Self-reported abstinence at 1-month follow-up [At 1-month follow-up]

    participants will be asked about their self-reported abstinence in the past 7 and 30 days

  27. Self-reported abstinence at 3-month follow-up [At 3-month follow-up]

    participants will be asked about their self-reported abstinence in the past 7 and 30 days

  28. Self-efficacy at 1-week follow-up [at 1-week follow-up]

    Participants will be asked about their self-efficacy in quitting. The score ranges from 0 to 10. Higher scores represent a higher self-efficacy.

  29. Self-efficacy at 1-month follow-up [at 1-month follow-up]

    Participants will be asked about their self-efficacy in quitting. The score ranges from 0 to 10. Higher scores represent a higher self-efficacy.

  30. Self-efficacy at 3-month follow-up [at 3-month follow-up]

    Participants will be asked about their self-efficacy in quitting. The score ranges from 0 to 10. Higher scores represent a higher self-efficacy.

Eligibility Criteria

Criteria

Ages Eligible for Study:
25 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:
  • have smoking in the previous 30 days.

  • be above 25 years old

  • able to speak Cantonese and read Chinese

Exclusion Criteria:
  • who are receiving current smoking cessation services

  • report psychological disorders

  • at risk of suicide

Contacts and Locations

Locations

No locations specified.

Sponsors and Collaborators

  • The Hong Kong Polytechnic University

Investigators

  • Principal Investigator: Katherine Lam, PhD, The Hong Kong Polytechnic University

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Dr Katherine Lam, Research Assistant Professor, The Hong Kong Polytechnic University
ClinicalTrials.gov Identifier:
NCT05297370
Other Study ID Numbers:
  • SDTM-adult
First Posted:
Mar 28, 2022
Last Update Posted:
Mar 28, 2022
Last Verified:
Mar 1, 2022
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Dr Katherine Lam, Research Assistant Professor, The Hong Kong Polytechnic University

Study Results

No Results Posted as of Mar 28, 2022