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The efficacy and cost-effectiveness of confrontational counselling for smoking cessation in smokers with previously undiagnosed COPD: a randomised controlled trial.

The efficacy and cost-effectiveness of confrontational counselling for smoking cessation in smokers with previously undiagnosed COPD: a randomised controlled trial.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON23106
Enrollment
350
Registered
2005-05-20
Start date
2004-02-01
Completion date
Unknown
Last updated
2024-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

2. Health education and promotion delivered by a pulmonary nurse and pharmacotherapy
or 3. "Care as usual" delivered by the general practitioner.
Intervention groups: 1. Confrontational counselling delivered by a pulmonary nurse and pharmacotherapy

Sponsors

None listed

Eligibility

Inclusion criteria

Inclusion criteria: 1. Age between 35 through 70 years; 2. Smoker with a smoking history of > 10 pack years of cigarettes; 3. Motivated to stop smoking; 4. One or more of the following symptoms are present: cough, progressive persistent shortness of breath (worse during exercise or respiratory infections) or sputum production; 5. Bronchus obstruction detected by spirometry: FEV1/FVC-ratio 50% predicted (= mild or moderate COPD / GOLD I or II); 6. Competent enough in speaking the Dutch language.

Exclusion criteria

Exclusion criteria: 1. Known by the general practitioner or in the second-line medical care with the diagnosis asthma or COPD (c.q. chronic bronchitis, lung emphysema); 2. Spirometry performed during the preceding 12 months; 3. FEV1 < 50% predicted (= severe or very severe COPD / GOLD III or IV); 4. Contraindications for the intake of the medication such as an acute myocardial infarction and hypersensitiveness for nortriptyline; 5. Current use of antidepressants; 6. Quit smoking attempt(s) using nortriptyline or bupropion during the preceding 6 months; 7. Co-morbidity: hypersensitiveness towards nortriptyline, tuberculosis, porfyrine, epilepsy,Parkinson disease, glaucoma, bronchial carcinoma or any other live threatening disease.

Design outcomes

Primary

MeasureTime frame
The primary outcome of this study is biochemically validated prolonged abstinence from smoking during a period of 12 months. A smoker is defined as prolonged abstinent if he/she is a non-smoker (no cigarette smoked during the preceding seven days), at the end of the intervention (day 50), and at the follow-up-visits after 6 months (day 197) and 12 months (day 380. Non-smoking is verified by urine cotinine. Participants with a cotinine-value of > 50ng/mL are regarded as smokers as well as participants who are lost to follow-up.

Secondary

MeasureTime frame
1. Point prevalence of non-smokers (no cigarette smoked during the preceding seven days) at the end of the intervention period and at 6- and 12-month follow-up; 2. Self-reported number of quit attempts and temporary or complete relapse; 3. Attitudes, social norms and self-efficacy with regard to smoking cessation; 4. Lung function (FEV1 post-bronchodilatory and FEV1/FVC) at baseline and at 12-month follow-up; 5. Anthropometry: physical height and weight at baseline, at the end of the intervention period and at 6- and 12-month follow-up; 6. Perceived specific health-related complaints (impairments and functional disabilities in everyday life); 7. Health-related quality of life; 8. Mental health (fear,depression); 9. Smoking related cognitions (risk perception, health concerns, self-exempting beliefs); 10. Number of unplanned visits to the general practitioner or specialized physician due to respiratory complaints and the number, severity and frequency of exacerbations (self-reported and/or reported by the general practitioner or specialist).

Contacts

Public ContactDaniel Kotz

University Maastricht (UM), CAPHRI Research Institute, Department of General Practice, P.O. Box 616

d.kotz@hag.unimaas.nl+31 (0)43 3882893

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)