Inspiratory Flow Parameters and Handling of Easyhaler and Turbuhaler Inhalers

Inspiratory Flow Parameters and Device Handling With Empty Device-metered Dry Powder Inhalers, Easyhaler and Turbuhaler; an Open, Randomised, Multi Centre Study in Patients With Asthma or COPD

The aim of the study is to measure the inspiratory flow that the different patient groups (asthmatic children, adults and elderly, as well as chronic obstructive pulmonary disease (COPD) patients) generate through empty Easyhaler (two versions) and Turbuhaler inhalers. In addition, the handling and acceptability of the inhalers will be compared in asthmatic children.

Inclusion Criteria:

• Written informed consent obtained.
• Documented diagnosis of asthma and/or COPD (a range of different severities for both diseases).
• Age: 6 years or above.

Exclusion Criteria:

• Any severe chronic respiratory disease other than asthma or COPD.
• Acute respiratory infection.
• Concurrent participation in a clinical drug study.
• Inability to perform repeatable spirometric measurements.
• Any medical condition that in the opinion of the investigator would endanger the subject if he/she participates in the study (such as contraindications to spirometry).