Viewing Study NCT00949195


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Study NCT ID: NCT00949195
Status: UNKNOWN
Last Update Posted: 2011-07-21
First Post: 2009-07-29
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Pulmonary Arterial Pressure Response During Exercise
Sponsor: Szeged University
Organization:

Study Overview

Official Title: Pulmonary Arterial Pressure Response During Exercise in COPD and Healthy Subjects
Status: UNKNOWN
Status Verified Date: 2009-10
Last Known Status: RECRUITING
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: PAPCOPDHS
Brief Summary: Background:

The extent of increase in systolic pulmonary arterial pressure (PAPs) during exercise in patients with COPD is unpredictable from lung function data. The non-invasive assessment of pulmonary hemodynamics during exercise and flow-mediated vasodilatation measurement may give useful data in the rehabilitation of COPD patients.

Methods:

Patients with stable, severe COPD and healthy, age-matched subjects (H) perform semi supine echocardiography with PAPs measurement. COPD patients perform ramp protocol with gas exchange detection. Serum hsCRP level is also determined in COPD patients. Endothel dysfunction is detected by flow mediated vasodilation measurement after arm strangulation with Doppler ultrasonography.

Primary endpoint:

The degree of pulmonary artery systolic pressure change during exercise?

Secondary endpoint:

1. The degree of right ventricular function change during exercise?
2. Is endothel dysfunction manifested with pulmonary artery pressure rise?
3. What is the correlation between the systemic inflammatory marker hsCRP and the degree of pulmonary artery pressure rise?
Detailed Description: Background: The extent of increase in systolic pulmonary arterial pressure (PAPs) during exercise in patients with COPD is unpredictable from lung function data. The non-invasive assessment of pulmonary hemodynamics during exercise by semi-supine echocardiography and flow-mediated vasodilatation measurement may give useful data in the rehabilitation of COPD patients.

Methods: Patients with stable, severe COPD and healthy, age-matched subjects (H) perform semi supine echocardiography with PAPs measurement. COPD patients perform ramp protocol with gas exchange detection. Serum hsCRP level is also determined in COPD patients. All of the subjects perform complete lung function with body pletysmography and diffusion capacity measurement. Endothel dysfunction is detected by flow mediated vasodilation measurement after arm strangulation with Doppler ultrasonography.

Study Oversight

Has Oversight DMC: True
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?:

Secondary ID Infos

Secondary ID Type Domain Link View
ISRCTN11034505 None None View