NCT02491086

Brief Summary

Background About half of the daily smokers in Hong Kong have never tried and have no intention to quit smoking. 37.9% of daily smokers attempted to quit but failed. Nicotine replacement therapy (NRT) is a safe and effective pharmacotherapy to reduce withdrawal symptoms during early stage of tobacco abstinence and increase quit rate. However, the prevalence of using NRT in Hong Kong is lower than most of the developed countries. The proposed project aims to test if providing free NRT sampling to smokers can increase quit attempt and hence quit successfully. Methods Nurses and university undergraduate students will be trained, and will invite smokers at outdoor public places to participate in the randomized controlled trial, which randomized eligible smokers to intervention or control group. The intervention group will be provided with 1-week free NRT sampling and medication counselling, whereas the control group will only be advised to purchase NRT on their own. The primary outcome is the proportion of any self-reported quit attempt (no smoking for at least 24 hours) in the past month at 1- and 3-month telephone follow-up. Discussions The findings will inform the feasibility and effectiveness of delivering free NRT sampling to increase quit attempt and abstinence. It will yield more information on smokers' adherence to the NRT sampling, side effect and safety issue of the usage. Moreover, it will guide a future larger trial to test the effect from the NRT sampling and translation to practice.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2015

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2015

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

July 2, 2015

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 7, 2015

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2016

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2016

Completed
Last Updated

October 26, 2016

Status Verified

October 1, 2016

Enrollment Period

6 months

First QC Date

July 2, 2015

Last Update Submit

October 24, 2016

Conditions

Keywords

intervention, nicotine replacement sampling, smoking cessation, smoking hotspots

Outcome Measures

Primary Outcomes (1)

  • Self-reported quit attempt

    No smoking for at least 24 hours in the past month

    1 month

Secondary Outcomes (3)

  • Self-reported 7-day prevalence of tobacco abstinence

    1 month

  • Proportion of participants using NRT in the past month

    1 month

  • Biochemically validated quit rate, measurement of exhaled carbon monoxide

    1 month

Study Arms (2)

Intervention

EXPERIMENTAL

The intervention group will receive a free pack of one-week NRT. The nurse will help the subject to decide which NRT product (patch, gum and lozenge) he/she can use and advise how to use the NRT based on his/her smoking habit and amount of cigarette consumption, followed by the delivery of the sampling, instructions of using the NRT sampling, an education card about NRT and a 12-page smoking cessation booklet (Figure 1). Based on the experience in the previous trials, the choice of NRT (either patch, lozenge or gum) will be made according to subject's preference, and the counsellors will provide medication counselling \[25-27\]. If the subject is willing to continue the counselling at recruitment, the ambassador will further introduce the NRT's side effects, adherence and effectiveness (Table 1). Otherwise, the ambassador will contact the subject for providing these details and enquiring the usage through telephone within 2 days.

Drug: Nicotine replacement therapy (NRT) samplingBehavioral: Smoking cessation counseling

Control

ACTIVE COMPARATOR

The control group subjects will only be advised by the ambassador to purchase the NRT on their own, but will not be given the sampling. The same education card and the 12-page smoking cessation booklet will be provided.

Behavioral: Smoking cessation counseling

Interventions

1-week free NRT

Intervention

Smoking cessation counseling

ControlIntervention

Eligibility Criteria

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

You may qualify if:

  • Aged 18 years or above;
  • Smoke 10 cigarettes or more per day in the past week;
  • Able to read and speak Chinese;
  • Have not used NRT for the past 3 months

You may not qualify if:

  • Have severe angina and serious cardiac arrhythmias;
  • Have suffered from acute myocardial event in the past 4 weeks;
  • Pregnant and breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Hong Kong

Hong Kong, 00, Hong Kong

Location

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  • Cheung YT, Leung JP, Cheung CK, Li WH, Wang MP, Lam TH. Motivating smokers at outdoor public smoking hotspots to have a quit attempt with a nicotine replacement therapy sample: study protocol for a randomized controlled trial. Trials. 2016 Jul 26;17(1):355. doi: 10.1186/s13063-016-1485-z.

MeSH Terms

Conditions

Smoking Cessation

Interventions

Nicotine Replacement Therapy

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Intervention Hierarchy (Ancestors)

Drug TherapyTherapeutics

Study Officials

  • Yee Tak Derek Cheung, Cheung

    The University of Hong Kong

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Post-doctoral Fellow

Study Record Dates

First Submitted

July 2, 2015

First Posted

July 7, 2015

Study Start

July 1, 2015

Primary Completion

January 1, 2016

Study Completion

September 1, 2016

Last Updated

October 26, 2016

Record last verified: 2016-10

Data Sharing

IPD Sharing
Will share

Locations