Conditions: Asthma
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 453
Healthy volunteers: no

Brief summary:
The trial is a randomised, double-blind, placebo-controlled, parallel-group trial to evaluate the efficacy and safety of 5 µg tiotropium over a 48-week treatment period as compared to placebo. Tiotropium inhalation solution delivered by the Respimat® inhaler will be examined as add-on controller therapy on top of usual care in patients with severe persistent asthma. The primary objective of each trial is to evaluate the long term efficacy of tiotropium over placebo on top of usual care in patients with severe persistent asthma as determined by pulmonary function testing, effects on asthma exacerbations, effects on quality of life, on asthma control and health care resource utilisation. The secondary objective of each trial is to compare the long term safety of tiotropium with placebo in this patient population.

Detailed description:

Arms:
arm 1: patient to receive double-blind treatment with either 5mcg/day tiotropium inhalation solution or placebo inhalation solution arm 2: patient to receive double-blind treatment with either 5mcg/day tiotropium inhalation solution or placebo inhalation solution

Interventions: intervention 1: tiotropium 5mcg/day intervention 2: placebo
Intervention descriptions: intervention 1: Intervention = Randomisation: patient to receive double-blind treatment with either 5mcg/day tiotropium inhalation solution or placebo inhalation solution intervention 2: Intervention = Randomisation: patient to receive double-blind treatment with either 5mcg/day tiotropium inhalation solution or placebo inhalation solution

Protocol document: