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Your journey
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More info
You can access this
clinical trial
if you have
Chronic Obstructive Pulmonary Disease
and you are
over 18
years old
The phase for this study is not defined.
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The purpose

Chronic obstructive pulmonary disease (COPD) is a chronicle inflammatory disease with a non reversible diminution of the airway flow. COPD is caused most commonly from tobacco smoking, which triggers an abnormal inflammatory response in the lung. Worldwide, COPD ranked as the sixth leading cause of death in 1990. It is projected to be the fourth leading cause of death worldwide by 2030 due to an increase in smoking rates and demographic changes in many countries. COPD is responsible for 16000 deaths per year in France, 100 000 hospitalizations per year and the health care expenditure of COPD in France is 3.5 billion of Euros. Classical markers of the disease severity, the forced expiratory volume in one second, poorly correlates with dyspnea and prognosis. Therefore, many studies focused on the control of breathing in an attempt to understand the pathophysiological mechanisms involved in the progression of the disease. Breathing control is enhanced in patients with COPD due to the progressive failure of respiratory muscles (airflow obstruction, static and dynamic hyperinflation, positive intrinsic end expiratory pressure), the ventilation/ perfusion ratio abnormalities leading to the loss of the gaz exchange efficiency. Inspiratory command depends on the medulla automatic pathway and the voluntary corticospinal command. Indirect method of breathing control estimation suggested in COPD patients an increased excitability of neurons involved in the voluntary diaphragm activation and a reduced cortical reserve. This may represent an increase risk factor for acute respiratory failure. Until now, no study reported the central breathing control with cerebral fMRI in COPD patients.

Provided treatments

  • Other: cerebral fMRI
  • Other: cerebral fMRI

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT01331070. The sponsor of the trial is Assistance Publique - Hôpitaux de Paris and it is looking for 40 volunteers for the current phase.
Official trial title:
Central Control of Breathing in Patients With Chronic Obstructive Pulmonary Disease: Identification and Dynamics With Cerebral Functional Magnetic Resonance Imaging