Effectiveness of intensive smoking reduction counselling plus combination nicotine replacement therapy in promoting long-term abstinence in patients with chronic obstructive pulmonary disease not ready to quit smoking: Protocol of the REDUQ trial

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Abstract

Introduction: Limited tobacco dependence treatment resources exist for smoking COPD patients not ready to quit. Smoking reduction may be a viable treatment approach if it prompts quit attempts and subsequent abstinence.
This article describes the protocol of the REDUQ (REDUce and Quit) study, which examines whether smoking reduction counselling plus combination nicotine replacement therapy (NRT) is (cost-)effective in achieving long-term abstinence in smoking COPD patients not ready to quit.
Methods/Design: We conducted a two-centre, parallel-group, randomised controlled trial with 18 months followup in smoking outpatients with COPD. Patients not ready to quit within the next month but willing to reduce their smoking, were randomised to receive either intensive smoking reduction counselling plus combination NRT or a single information meeting plus self-help manual. Outcomes were assessed at baseline, 6, 12 and 18 months.
The primary outcome is ≥ 1-year prolonged abstinence. Secondary outcomes are point prevalence abstinence, successful (i.e. ≥ 50%) smoking reduction, and incidence of quit attempts reported at follow-up assessments. Smoking status is biochemically verified by salivary cotinine and expired CO. Other variables include smokingrelated cognitions, intention and motivation to reduce and quit smoking, withdrawal symptoms, health-related quality of life, symptoms of anxiety and depression, state of mindfulness, lung function, use of health care resources, and costs.
Discussion: The outcomes of the REDUQ trial will advance knowledge on treatment of smoking COPD patients not ready to quit. If (cost-)effective, the smoking reduction intervention can be offered to this difficult-to-treat
target group as a valuable adjunct to smoking cessation treatment.
Original languageEnglish
Pages (from-to)248-257
Number of pages10
JournalContemporary Clinical Trials Communications
Volume8
DOIs
Publication statusPublished - 1 Sep 2017

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