Effectiveness of Intensive Smoking Cessation Interventions in Patients With Cancer

Completed

• Conditions: Tobacco Smoking; Tobacco Cessation; Cancer
• Interventions: Behavioral: Intensive Smoking Cessation Intervention

• Registration Number: NCT04198688
• Lead Sponsor: Bispebjerg Hospital

Brief Summary

Smoking accounts for approximately 30% of total cancer deaths each year. Even though former studies show that persons with a cancer diagnosis are less likely to smoke than the general population up to 50% of people who smoke and have lung cancer do not stop smoking after their diagnosis or frequently relapse after smoking cessation. Continued smoking leads to increased all-cause mortality, increased cancer-specific mortality, and decreased quality of life. It is well-known that cancer patients are interested in smoking cessation therefore smoking cessation interventions play an important role in the management of people with cancer.

This study will evaluate the effectiveness of an intensive smoking cessation interventions on cancer patients in real life. The project provides new knowledge about smokers diagnosed with cancer.

Detailed Description

This prospective register-based cohort study including smokers attending an intensive smoking cessation intervention (the Gold Standard Programme (GSP)) from 2006-2017 in Denmark. The GSP is a manualised, patient education programme taught by specially trained staff, including pharmacologic strategies.

Study Timeline

• Study Start: 2006-01-03
• Primary Completion: 2018-01-04
• Study Completion: 2018-01-04
• Study First Submitted: 2019-12-06
• Study First Submitted QC: 2019-12-12
• Study First Posted: 2019-12-13
• Status Verified: 2023-07
• Last Update Submitted: 2023-07-07
• Last Update Posted: 2023-07-10

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 77380

Inclusion Criteria

• Smokers registered in the National Danish Smoking Cessation Database between January 2006 until May 2017

Exclusion Criteria

• Entries referring to smokers attending more than one smoking cessation intervention (the latest entry will be used)
• Smokers younger than 18 years of age
• Smokers attending interventions other than the intensive Gold Standard Programme for smoking cessation (GSP)
• Smokers where the smoking cessation unit pre-decided not to follow up on their participants
• Smokers in the non-cancer group diagnosed with benign neoplasms, tumours of unknown etymology or non-melanoma skin cancer (ICD-10 diagnoses: D30.1-9; D32-33; D35.2-4; D41.1-9; D44.3-5; C44, C46.0)

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
With cancer	Intensive Smoking Cessation Intervention	Patients diagnosed with cancer (with at least one of the following ICD-10 diagnoses: C00-43; C46.1-99; D09)
Without cancer	Intensive Smoking Cessation Intervention	Patients without cancer (without any of the following ICD-10 diagnoses: C00-99; D09; D30.1-9; D32-33; D35.2-4; D41.1-9; D44.3-5)

Primary Outcome Measures

Name	Time	Method
% of patients that are continuously smokefree	6 months	Self-reported smoking status, questionnaire completed by telephone interview