NCT03230955

Effectiveness of a Smoking Cessation Quit Line for Mental Health Patients

Effectiveness of a Smoking Cessation Quit Line for Mental Health Patients: Pragmatic Clinical Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 300 (actual)
• Sponsor: Institut Català d'Oncologia · Academic / Other
• Sex: All
• Age: 18 Years – 76 Years
• Healthy volunteers: Accepted

Summary

Pragmatic randomized clinical trial, single-blind, with allocation 2:1 \[Intervention Group (IG) and control group (CG)\] in 5 acute hospitals. The IG will receive telephone assistance to quit smoking (including psychological and psycho-educational support and pharmacological treatment advice, if required) proactively for 12 months, and the CG only brief counselling after discharge. To assess the effectiveness of a multicomponent and motivational intensive telephone-based intervention to stop smoking ("quit line") addressed to smokers with mental disorders discharged from hospitals.

Detailed description

Background: People suffering from mental illness are more likely to smoke. In Spain, up to 75% of patients hospitalized for mental disorders smoke, tripling the general population consumption. Life expectancy for people with severe mental illnesses is decreased by up to 25 years in comparison to the general population, mainly due to diseases caused or worsened by smoking. Hospitalized patients without monitoring after discharge quickly restore their tobacco use to previous levels. This evidence suggests the need of an appropriate follow-up intervention to prevent relapse after discharge and achieve higher rates of withdrawal in this population. Objectives: To assess the effectiveness of a multicomponent and motivational intensive telephone-based intervention to stop smoking ("quit line") addressed to smokers with mental disorders discharged from hospitals. Methods: Pragmatic randomized clinical trial, single-blind, with allocation 2:1 \[Intervention Group (IG) and control group (CG)\] in 5 acute hospitals. The IG will receive telephone assistance to quit smoking (including psychological and psycho-educational support and pharmacological treatment advice, if required) proactively for 12 months, and the CG only brief counselling after discharge. The sample size, calculated with an expected difference of 15 points on withdrawal between groups, α=0.05 and β=0.10 and 20% loss, will be of 334 (IG) and 176 (CG), which will be doubled to allow stratified analyses. Variables: a) dependent variables: self-reported smoking abstinence and verified by expired carbon monoxide levels, quit attempts, time of abstinence, motivation and self-efficacy to quit, and b) independent variables: age, sex and main disorder. Data analysis: multivariate logistic regression (odds ratio and confidence interval, CI 95%) of abstinence and other variables adjusted for potential confounding variables. Number of smokers needed to treat (NNT, and its 95% CI) to achieve one abstinent will be calculated. Hypothesis: Abstinence rate (≥ 15%) of enrolled patients between groups. If the intervention is effective, the pragmatic nature of the study will permit to transfer it to the routine clinical practice with a reasonable investment.

Conditions

• Mental Disorder
• Smoking Cessation
• Motivation

Interventions

Type	Name	Description
BEHAVIORAL	Psychological and psycho-educational support by phone	The intervention is based on cognitive-behavioural therapy (CBT). The intervention, in order to achieve behavioural changes, will include components based in Bandura's social learning theory and social cognitive theory (Bandura, 1986) and the transtheorical model of change (Prochaska, 1992). It has been shown that expectations and self-efficacy are behavioural predictors and that they are an effective framework for the assistance to quit smoking. This theory allows evaluating patient motivation phase and adapting the interventions according to each phase (Fiore, 2011)
OTHER	Brief counselling session	Brief counselling session

Timeline

• Start date: 2017-05-02
• Primary completion: 2020-05-31
• Completion: 2020-12-31
• First posted: 2017-07-27
• Last updated: 2021-10-11

Locations

1 site across 1 country: Spain