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Study to establish the lung function effects of added formoterol (12μg QD and BID) during 2-week periods to pharmacodynamic steady state of tiotropium(18μg QD)
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Inclusion criteria
All patients must sign an informed consent consistent with international conference of harmonization (ICH)-good clinical practice (GCP) guidelines prior to participation in the trial, which includes medication washout and restrictions
All patients must have a diagnosis of chronic obstructive pulmonary disease and must meet the following spirometric criteria:
Patients must have relatively stable* moderate to severe airway obstruction with an FEV1 ≤ 60% of predicted normal and FEV1 ≤ 70% of FVC (Visit 1)
* Patients who have frequent exacerbations (at least three in the preceding year) which could be expected to interfere with the patient's ability to participate in the trial should be excluded. The enrollment of patients who have had an exacerbation within the six-week period prior to planned study entry should be postponed for at least six weeks
Predicted normal values will be calculated according to european community for coal and steel (ECCS):
Males: FEV1 predicted (L) = 4.30 x Height (metres) - 0.029 x Age (years) - 2.49
Females: FEV1 predicted (L) = 3.95 x Height (metres) - 0.025 x Age (years) - 2.60
Male or female patients 40 years of age or older
Patients must be current or ex-smokers with a smoking history of more than 10 pack-years
Patients must be able to perform technically acceptable pulmonary function tests and must be able to maintain records (Patient Daily Record) during the study period as required in the protocol
Patients must be able to inhale medication from inhalation capsule delivery systems (the HandiHaler® for the tiotropium and placebo capsules and the Aerolizer® for the formoterol capsule) and from a metered dose inhaler
Exclusion criteria
Primary purpose
Allocation
Interventional model
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95 participants in 3 patient groups
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Data sourced from clinicaltrials.gov
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