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Clinical Trial Summary

Non-invasive ventilation is frequently applied in patients with acute exacerbation of COPD, but no evidence exists about the effect of long term application/home application.

This study tests the hypothesis, that a daily, 6 hour application of non-invasive ventilation over one year improves survival, exercise capacity, and quality of life in patients with advanced stages of COPD.


Clinical Trial Description

The key problem of COPD (Chronic Obstructive Pulmonary Disease) is chronic inflammation and obstruction of the small airways. This results in a largely elevated flow resistance and work of breathing. The lungs develop enlarged air spaces (emphysema) with a reduction of alveoli and respiratory surface. Consequences are flattening of the diaphragm and alterations in the thoracic skeleton. COPD patients in advanced stages develop insufficiency of the muscular ventilatory pump. The ventilatory pump may decompensate, if the load of the muscles overruns their capacities. Besides that, an unphysiologically high proportion of the cardiac pump volume must be spent for the demands of the ventilatory muscles. Hypercapnia, and later hypoxaemia, are indicators of a decompensated ventilatory pump.

Theoretically, non-invasive ventilation (NIV) could be a treatment option for patients with advanced COPD and insufficiency of their ventilatory pump. Mechanical non-invasive ventilation provides support for the ventilatory muscles and might counterbalance the elevated intrinsic PEEP.

The physiologic and quality of life aspects of long term application on non-invasive ventilation (over at least one year) will be assessed in this study. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT00710541
Study type Interventional
Source Deutsche Lungenstiftung e.V.
Contact
Status Terminated
Phase N/A
Start date October 2004
Completion date December 2012

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