COPD, Dyspnea, Hypoxemia, Lung Diseases, Tachycardia
Conditions
Keywords
COPD, Inspiratory capacity, Residual volume, Total lung resistance, Arterial Oxygen
Brief summary
The purpose of this study is to determine whether indacaterol maleate 300 micrograms (mcg) is effective in the acute treatment of COPD and in particular on reducing lung hyperinflation and dynamic volumes.
Detailed description
Enrolled patients: COPD of any disease severity in stable conditions. 48 hours of inhalatory drugs wash out. Evaluation: Plethysmographic test, blood gas analysis, blood pressure, cardiac frequency and Borg scale evaluation in basal condition and after 60 minutes of indacaterol maleate 300 mcg inhalation.
Interventions
Dry powered, 300 mcg, only one inhalation with 24 hours duration
Dry powered, same to study drug, only one inhalation
Sponsors
Study design
Eligibility
Inclusion criteria
* Signature of consensus * COPD diagnosis * Age from 50 to 85 years old * history of COPD at least of one year * respiratory stable conditions at least of one month * Any basal FEV1 expressed in % of predicted value * FEV1/ Forced Vital Capacity (FVC) less than 70% * Former or active smokers with at least a smoking history of 20 pack year
Exclusion criteria
* Pregnancy * FEV1/FVC more than 70% * Known deficit of alpha 1 antitrypsin * Subjects submitted to a Lung Volume Reduction Surgery (LVRS) * Subjects with known positivity to Human Immunodeficiency Virus (HIV) * Misuse of alcool or drugs * Absence of compliance in performing respiratory tests
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Intra Thoracic Gas Volume (ITGV) | 60 minutes after drug inhalation | A complete body plethysmografic test will be performed after indacaterol inhalation |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Forced Expired Volume in the first second (FEV1) | 60 minutes after drug inhalation | Will be performed: spirometry, Arterial blood sample, measurement of blood pressure and cardiac frequency. All these parameters will be tested 60 minutes after inhalation of Indacaterol 300 micrograms (mcg). |
| Partial pressure of arterial oxygen (PaO2) | 60 minutes after drug inhalation | Arterial gas analysis will be performed evaluating all arterial gases |
Countries
Italy