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29.06.01

Aktuelle Abstracts 29.06.01


Poole PJ, Black PN
Department of Medicine, University of Auckland, Private Bag 92019, Auckland, New Zealand.
BMJ 2001 May 26;322(7297):1271-4
Link zum Volltextartikel

Oral mucolytic drugs for exacerbations of chronic obstructive pulmonary disease: systematic review.

OBJECTIVE: To assess the effects of oral mucolytics in adults with stable chronic bronchitis and chronic obstructive pulmonary disease.

DESIGN: Systematic review of randomised controlled trials that compared at least two months of regular oral mucolytic drugs with placebo.

STUDIES: Twenty three randomised controlled trials in outpatients in Europe and United States. MAIN OUTCOME MEASURES: Exacerbations, days of illness, lung function, adverse events.

RESULTS: Compared with placebo, the number of exacerbations was significantly reduced in subjects taking oral mucolytics (weighted mean difference -0.07 per month, 95% confidence interval -0.08 to -0.05, P<0.0001). Based on the annualised rate of exacerbations in the control subjects of 2.7 a year, this is a 29% reduction. The number needed to treat for one subject to have no exacerbation in the study period would be 6. Days of illness also fell (weighted mean difference -0.56, -0.77 to -0.35, P<0.0001). The number of subjects who had no exacerbations in the study period was greater in the mucolytic group (odds ratio 2.22, 95% confidence interval 1.93 to 2.54, P<0.0001). There was no difference in lung function or in adverse events reported between treatments.

CONCLUSIONS: In chronic bronchitis and chronic obstructive pulmonary disease, treatment with mucolytics is associated with a reduction in acute exacerbations and days of illness. As these drugs have to be taken long term, they could be most useful in patients who have repeated, prolonged, or severe exacerbations of chronic obstructive pulmonary disease.

Publication Types:
· Review
· Review, academic


PMID: 11375228, UI: 21268913

 


 

Tashkin D, Kanner R, Bailey W, Buist S, Anderson P, Nides M, Gonzales D, Dozier G, Patel MK, Jamerson B
Division of Pulmonary and Critical Care Medicine, Department of Medicine, UCLA School of Medicine, 90095, Los Angeles CA, USA. dtashkin@mednet.ucla.edu
Lancet 2001 May 19;357(9268):1571-5

Smoking cessation in patients with chronic obstructive pulmonary disease: a double-blind, placebo-controlled, randomised trial.

BACKGROUND: Tobacco smoking is associated with chronic obstructive pulmonary disease (COPD) in more than 80% of cases. Our aim was to investigate the effect of sustained-release bupropion (amfebutamone) (SR) in promoting abstinence from smoking in patients with COPD.

METHODS: In a double-blind, randomised, placebo-controlled trial 404 individuals with mild or moderate COPD who smoked 15 or more cigarettes per day, were assigned bupropion SR (150 mg twice daily) or placebo for 12 weeks. All patients received smoking cessation counselling. Study medication was taken for 1 week before patients attempted to stop smoking. The primary efficacy endpoint was the complete and continuous abstinence from smoking from the beginning of week 4 to the end of week 7. Participants were followed up at month 6. Analysis was by intention to treat.

FINDINGS: All patients were chronic smokers with a smoking history of about 51 pack-years. Continuous smoking abstinence rates from week 4 to 7 were significantly higher in participants receiving bupropion SR than in those receiving placebo (28% [57/204] vs 16% [32/200], p=0.003). Continuous abstinence rates from weeks 4 to 12 (18% [36/204] vs 10% [20/200]) and weeks 4 to 26 (16% [32/204] vs 9% [18/200]) were also higher in participants receiving bupropion SR than in those taking placebo (p<0.05). Furthermore, symptoms of tobacco craving and withdrawal were attenuated in those receiving bupropion SR. Seven individuals discontinued study medication because of adverse events.

INTERPRETATION: Bupropion SRis a well-tolerated and effective aid to smoking cessation in people with mild to moderate COPD.


Publication Types:
· Clinical trial
· Multicenter study
· Randomized controlled trial

PMID: 11377644, UI: 21272983

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