Tiotropium in patients with moderate COPD naive to maintenance therapy: a randomised placebo-controlled trial.
The benefits of pharmacotherapy with tiotropium HandiHaler 18 μg for patients with chronic obstructive pulmonary disease (COPD) have been previously demonstrated. However, few data exist regarding the treatment of moderate disease (Global Initiative for Chronic Obstructive Lung Disease (GOLD) stage II).



To determine whether tiotropium improves lung function/patient-reported outcomes in patients with GOLD stage II COPD naive to maintenance therapy.



A randomised 24-week double-blind placebo-controlled trial of tiotropium 18 μg once daily (via HandiHaler) was performed in maintenance therapy-naive patients with forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) ratio <0.7 and post-bronchodilator FEV1 ≥50 and <80%.



A total of 457 patients were randomised (238 tiotropium, 219 placebo; mean age 62 years; FEV1 1.93 l (66% predicted)). Tiotropium was superior to placebo in mean change from baseline in post-dose FEV1 area under the curve from 0 to 3 h (AUC0-3h) at week 24 (primary endpoint): 0.19 vs. -0.03 l (least-squares mean difference 0.23 l, P<0.001). FVC AUC0-3h, trough and peak FEV1 and FVC were significantly improved with tiotropium versus placebo (P<0.001). Compared with placebo, tiotropium provided numerical improvements in physical activity (P=NS). Physician's Global Assessment (health status) improved (P=0.045) with less impairment on the Work Productivity and Activity Impairment questionnaire (P=0.043) at week 24. The incidence of exacerbations, cough, bronchitis and dyspnoea was lower with tiotropium than placebo.



Tiotropium improved lung function and patient-reported outcomes in maintenance therapy-naive patients with GOLD stage II COPD, suggesting benefits in initiating maintenance therapy early.
Department of Rehabilitation Sciences and Respiratory Division UZ Leuven, Katholieke Universiteit Leuven, Leuven, Belgium.
Thierry
T
Troosters
Emphysema Research Center, Division of Pulmonary and Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
Frank C
FC
Sciurba
Pneumology, Katholieke Universiteit Leuven and University Hospitals Leuven, Leuven, Belgium.
Marc
M
Decramer
University Hospital of Heraklion, Heraklion, Greece.
Nikos M
NM
Siafakas
Pfizer, Groton, CT, USA.
Solomon S
SS
Klioze
Pfizer, New York, NY, USA.
Santosh C
SC
Sutradhar
Pfizer, New York, NY, USA.
Idelle M
IM
Weisman
Pfizer, New York, NY, USA.
Carla
C
Yunis
D000203:Activities of Daily Living; D001993:Bronchodilator Agents / Q000009:adverse effects / Q000627:therapeutic use*; D004311:Double-Blind Method; D005260:Female; D005541:Forced Expiratory Volume; D006304:Health Status; D006801:Humans; D008297:Male; D008875:Middle Aged; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy*; D012602:Scopolamine Derivatives / Q000009:adverse effects / Q000627:therapeutic use*; D012720:Severity of Illness Index; D000069447:Tiotropium Bromide; D016896:Treatment Outcome
D001993:Bronchodilator Agents; D012602:Scopolamine Derivatives; D000069447:Tiotropium Bromide