Effect on Exercise Endurance and Lung Hyperinflation of Tiotropium + Olodaterol in COPD Patients

Inclusion criteria

• All patients must sign an informed consent consistent with ICH-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 airway obstruction with a post-bronchodilator FEV1 x2 ULN, SGPT >x2 ULN, bilirubin >x2 ULN or creatinine >x2 ULN will be excluded regardless of clinical condition

• Patients with a history of asthma. For patients with allergic rhinitis or atopy, source documentation is required to verify that the patient does not have asthma.

Patients with any of the following conditions:

• A diagnosis of thyrotoxicosis (due to the known class side effect profile of ß2-agonists)
• A diagnosis of paroxysmal tachycardia (>100 beats per minute) (due to the known class side effect profile of ß2-agonists)
• A history of myocardial infarction within 1 year of screening visit (Visit 1)
• Unstable or life-threatening cardiac arrhythmia
• Hospitalized for heart failure within the past year
• Known active tuberculosis
• A malignancy for which patient has undergone resection, radiation therapy or chemotherapy within last five years (patients with treated basal cell carcinoma are allowed)
• A history of life-threatening pulmonary obstruction
• A history of cystic fibrosis
• Clinically evident bronchiectasis
• A history of significant alcohol or drug abuse
• Any contraindications for exercise testing.
• Patients who have undergone thoracotomy with pulmonary resection (patients with a history of thoracotomy for other reasons should be evaluated as per exclusion criterion No. 1)
• Patients being treated with any oral ß-adrenergics
• Patients being treated with oral corticosteroid medication at unstable doses
• Patients who regularly use daytime oxygen therapy for more than one hour per day and in the investigator's opinion will be unable to abstain from the use of oxygen therapy during clinic visits
• Patients who have completed a pulmonary rehabilitation program in the six weeks prior to the screening visit or patients who are currently in a pulmonary rehabilitation program
• Patients who have a limitation of exercise performance as a result of factors other than fatigue or exertional dyspnoea, such as arthritis in the leg, angina pectoris or claudication or morbid obesity.
• Patients who have taken an investigational drug within one month or six half lives (whichever is greater) prior to screening visit
• Patients with known hypersensitivity to ß-adrenergics drugs, anticholinergic drugs, BAC, EDTA or any other component of the Respimat® inhalation solution delivery system
• Pregnant or nursing women
• Women of childbearing potential not using highly effective methods of birth control.