Clinical trial NCT05907226: Compare Smokers' Appraisal of Proposed Plain Packs and Existing Cigarette Packs
Official title: Conducting a Study to Compare Smokers' Appraisal of Proposed Plain Packs and Existing Cigarette Packs in Hong Kong
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Health Risk Behaviors
Non Communicable Diseases
Keywords: Plain cigarette packs
current smokers
branded cigarette packs
Lead sponsor: Chinese University of Hong Kong
Sponsor class: OTHER
First posted: 2023-06-18
Enrollment: 1283
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: At least 1,280 current smokers at smoking hotspots in Hong Kong Island, Kowloon, and the New Territories will be recruited.

Brief summary: 2 Objectives

1. To explore the noticeability of pictorial health warnings and perceptions of attractiveness and harmfulness towards plain cigarette packets and existing cigarette packets with 85% pictorial warnings in current smokers;
2. to compare the differences in perceptions of packaging in current smokers with different characteristics (i.e. by sex, age, the consumption level of cigarettes, nicotine dependence levels, and types of tobacco used for polytobacco product users);
3. to evaluate the effectiveness in reducing smoking consumption and promoting quit attempts; and
4. to assess the support for the legislation of plain packaging.

Detailed description: The present study will recruit at least 1,280 current smokers at smoking hotspots in Hong Kong Island, Kowloon, and the New Territories. Land-based, non-institutionalized Hong Kong residents aged 18 years and over who speak Cantonese or Putonghua are eligible to participate.

Subjects will be shown dummies of branded and plain packets that differ in brand names and plain colours. Subjects will discuss their perceptions of attractiveness and harmfulness, noticeability of warnings and effectiveness in reducing smoking consumption and promoting quit attempts. Their opinions on the legislation of plain packaging will also be asked.

After each interview, interviewers will debrief each interviewee on the harms of smoking and distribute a card providing a quitline and quitting methods.

Eligibility criteria: Inclusion Criteria:

* Hong Kong residents aged 18 years and over
* Able to speak Cantonese or Putonghua
* Smokers who have tobacco use behaviour of holding a cigarette in the hand or mouth

Exclusion Criteria:

* Foreign domestic helpers
* Non-smokers

Primary outcomes:
measure: Percent of participants who perceive current branded packets as attractive
timeFrame: Baseline
measure: Percent of participants who perceive plain packets as harmful
timeFrame: Baseline
Secondary outcomes:
measure: Noticeability of pictorial warnings
timeFrame: Baseline
measure: Perceived effectiveness
timeFrame: Baseline
Other outcomes:
Locations:
city: Hong Kong
country: Hong Kong
facility: The Chinese University of Hong Kong
Study officials:
affiliation: williamli@cuhk.edu.hk
name: Ho Cheung William Li, PhD
role: PRINCIPAL_INVESTIGATOR
References: