To demonstrate the efficacy of inhaled tiotropium + olodaterol via Respimat® on lung function in patients with moderate to severe Chronic Obstructive Pulmonary Disease (COPD) with optimal and sub-optimal Peak Inspiratory Flow Rate (PIFR). Disease severity (moderate to severe) is based on the Global Initiative for Chronic Lung Disease (GOLD) guidelines (GOLD 2 - 3)

Inclusion Criteria:

• Signed and dated written informed consent in accordance with International Council on Harmonisation Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trial.

• Male or female patients, 40 years of age or older.

• All patients must have a diagnosis of chronic obstructive pulmonary disease and must meet the following spirometric criteria: patients with a post-bronchodilator Forced Expiratory Volume in one second (FEV1) >30% and <80% of predicted normal (European Coal and Steel Community (ECSC), [R94-1408]); and a postbronchodilator FEV1/ Functional Residual Capacity (FVC) <70%, at the screening visit.

• Patients must be current or ex-smokers with a smoking history of more than 10 pack years

• Patients should meet the peak inspiratory flow rate criteria (optimal or sub-optimal) at the time of randomization depending on which strata is available for inclusion in the study.

• Women of childbearing potential must be ready and able to use highly effective methods of birth control per ICH M3 (R2) that result in a low failure rate of less than 1% per year when used consistently and correctly. A list of contraception methods meeting these criteria is provided in the patient information.

• Patients are expected to be able to perform, according to investigator's judgment, all trial related procedures including:

  • Technically acceptable pulmonary function tests (spirometry)
  • Use of In-Check DIAL G16 device to measure peak inspiratory flow rate.
  • Inhale medication in a competent manner (in the opinion of the investigator) from the Respimat® device
  • Perform technically acceptable body plethysmography measurements. This is applicable only to patients who will consent to the optional trial procedure at the selected sites.

Exclusion Criteria:

• Patients with a significant disease other than chronic obstructive pulmonary disease; a significant disease defined as a disease which, in the opinion of the investigator, and referring to the warnings to be observed as quoted in the locally applicable SmPC or prescribing information, could (i) put the patient at risk because of participation in the trial, (ii) influence the results of the trial, or (iii) cause concern regarding the patient's ability to participate in the trial.
• Patients who have had a chronic obstructive pulmonary disease exacerbation that required treatment with antibiotics, systemic steroids (oral or intravenous) or hospitalization in the 6 weeks prior to screening visit or during the screening period.
• Patients who experienced two or more moderate chronic obstructive pulmonary disease exacerbations (exacerbation that required treatment with antibiotics and/or oral corticosteroids), or one or more exacerbation leading to hospitalization within a year prior to visit 1.
• 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 taking inhaled corticosteroids (including combinations, e.g. inhaled corticosteroids / Long-Acting β2-agonist) in the 6 months prior to screening visit.
• Patients being treated with oral corticosteroid medication due to reasons other than chronic obstructive pulmonary disease exacerbation within 6 weeks prior to the screening visit.
• Patients who have completed a pulmonary rehabilitation program in the 6 weeks prior to screening visit or patients who are currently in a pulmonary rehabilitation program.
• Further criteria apply

After the study is completed and the primary manuscript is accepted for publishing, researchers can use this following link https://www.mystudywindow.com/msw/datasharing to request access to the clinical study documents regarding this study, and upon a signed "Document Sharing Agreement". Also, Researchers can use the following link https://www.mystudywindow.com/msw/datasharing to find information in order to request access to the clinical study data, for this and other listed studies, after the submission of a research proposal and according to the terms outlined in the website. The data shared are the raw clinical study data sets.

After all regulatory activities are completed in the US and EU for the product and indication, and after the primary manuscript has been accepted for publication.

For study documents - upon signing of a 'Document Sharing Agreement'. For study data - 1. after the submission and approval of the research proposal (checks will be performed by both the independent review panel and the sponsor, including checking that the planned analysis does not compete with sponsor's publication plan); 2. and upon signing of a 'Data Sharing Agreement'.