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An Internet-based Dialectical Behaviour Therapy-informed Skills Training for Promoting Smoking Cessation and Improving Psychological Distress of Adult Smokers.

Effect of an Internet-based Dialectical Behaviour Therapy-informed Skills Training for Promoting Smoking Cessation and Improving Psychological Distress of Smokers: A Pilot Randomised Controlled Trial

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06575673
Enrollment
60
Registered
2024-08-28
Start date
2024-09-04
Completion date
2025-12-31
Last updated
2025-09-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Smoking

Keywords

Dialectical behaviour therapy, Skills training, Internet-based intervention, Psychological distress, Adult smokers, Smoking

Brief summary

1. To determine the feasibility, acceptability, and preliminary effects of an internet-based DBT-ST for promoting smoking abstinence/reduction and improving psychological distress/emotional regulation in adult smokers 2. To explore the participants' experiences and perceptions (e.g., perceived benefits/weaknesses) towards the proposed intervention

Interventions

Adaptive applications of DBT-ST for smokers with psychological distress

General health information and sharing sessions

Sponsors

Chinese University of Hong Kong
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
Yes

Inclusion criteria

* Hong Kong Chinese aged 18-64 years * Had smoked at least one cigarette per day over the previous three months * Indicate psychological distress as measured by the Depression, Anxiety, and Stress Scale-21 * Have an intention to stop smoking * Have an electronic device and are willing to receive interventions via the internet

Exclusion criteria

* Experiencing psychotic disorders/cognitive impairment/communication problems * Participating in other smoking cessation programs or related psychosocial interventions

Design outcomes

Primary

MeasureTime frameDescription
Level of psychological distressBaseline, 3-month post-interventionSymptoms of depression, anxiety and stress measured by the Chinese version of Depression, Anxiety, and Stress Scale-21
Biochemically validated 7-day PPA (an exhaled CO test and a salivary cotinine test)Baseline, 3-month post-interventionParticipants who self-reported not smoking within the past seven days will be invited to attend a biochemical verification test of smoking abstinence

Secondary

MeasureTime frameDescription
Self-reported smoking reduction of at least 50%3-month post-interventionParticipants will report the number of cigarette they consume and the number will be compared to the number at baseline
Quit attemptsBaseline, 3-month post-interventionThe number of times that the participant engage in a period of intentional abstinence of more than 24 hours in the previous three months
Self-reported 7-day PPABaseline, 3-month post-interventionSelf-reporting of complete abstinence for at least seven days prior to assessment
Emotion dysregulationBaseline, 3-month post-interventionLevels of emotion dysregulation measured by the Chinese version of the Difficulties in Emotion Regulation Scale (DERS)
Distress toleranceBaseline, 3-month post-interventionPerceived ability to tolerate emotional distress measured by the Chinese version of the Distress Tolerance Scale (DTS)

Other

MeasureTime frameDescription
Feasibility of the intervention3-month post-interventionRecruitment rate
Acceptability3-month post-interventionClient Satisfaction measured by the 8-item Client Satisfaction Questionnaire-8
Semi-structured interview3-month post-interventionIndividual semi-structured interviews will be conducted at post-intervention to explore participants' experiences/perceptions of the internet-based DBT-ST, as well as their comments on the appropriateness/comprehensiveness of the content/frequency of the intervention.

Countries

Hong Kong

Contacts

Primary ContactLong Kwan Ho, PhD
longkwanho@cuhk.edu.hk39430664
Backup ContactHiu Nam Naomi Wu, Bachelor
hiunamnaomiwu@cuhk.edu.hk39438167

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026