Impact of Polymorphism on Pulmonary Pressure in Subjects With Pulmonary Hypertension of Different Cause

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00893178
Recruitment Status : Active, not recruiting
First Posted : May 5, 2009
Last Update Posted : March 15, 2017
Heart Center Leipzig - University Hospital
Information provided by (Responsible Party):
Sven Möbius-Winkler, University of Leipzig

Brief Summary:

Pulmonary Hypertension (PH) is a disease that is characterized by vasoconstriction of small vessels of the lung. Many cases do have proliferation of endothelial cells within these vessels. A possible influence of polymorphisms of genes relevant for inflammatory and endothelial processes is suspected.

Especially patients with chronic heart failure can develope PH. The reasons therefore are lacking.

The researchers investigate different polymorphism and the influence of these on pulmonary artery pressure (measured invasively) in patients with congestive heart failure (CHF) and patients with primary pulmonary hypertension.

Condition or disease
Congestive Heart Failure Pulmonary Hypertension

Detailed Description:

The study consists of 3 arms-patients with CHF and PH, patients with CHF without PH and patients without CHF and PH.

The PH measurement is due to routine catheterization, thereafter we measure different vasoactive polymorphism.

Study Type : Observational
Estimated Enrollment : 600 participants
Observational Model: Case-Control
Time Perspective: Prospective
Official Title: Impact of Different Genetic Polymorphism on the Pulmonary Pressure in Patients With Pulmonary Hypertension of Different Cause With Special Focus on Patients With Chronic Heart Failure
Actual Study Start Date : December 2007
Estimated Primary Completion Date : July 2018
Estimated Study Completion Date : December 2018

Resource links provided by the National Library of Medicine

CHF with elevated PAP
CHF patients (LVEF > 35%) with elevated mean pulmonary pressure( > 20 mmHg ) measured by pa catheter
CHF patient without elevated PAP
CHF patients (LVEF > 35%) with normal mean pulmonary pressure
Normal EF with elevated PAP
Patients with normal LVEF < 60% with elevated mean pulmonary pressure

Primary Outcome Measures :
  1. Correlation of the Expression of Glu 298ASP Polymorphism with pulmonary pressure [ Time Frame: Dec. 2010 ]

Secondary Outcome Measures :
  1. Rate of G308A TNF alpha polymorphism within the different groups [ Time Frame: Dec. 2010 ]

Biospecimen Retention:   Samples With DNA
EDTA Blood, Serum

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
CHF elevated pulmonary hypertension

Inclusion Criteria:

  • CHF with or without pulmonary hypertension or
  • patients with normal LVEF and pulmonary hypertension
  • right heart catheterization due to routine
  • informed consent

Exclusion Criteria:

  • no right heart catheterization
  • no informed consent
  • elevated pulmonary pressure due to valve diseases or congenital heart disease

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00893178

Heart Center Leipzig- University Leipzig
Leipzig, Germany, 04289
Sponsors and Collaborators
University of Leipzig
Heart Center Leipzig - University Hospital
Principal Investigator: Sven Möbius-Winkler, M.D University Leipzig-Heart Center

Responsible Party: Sven Möbius-Winkler, PI, University of Leipzig Identifier: NCT00893178     History of Changes
Other Study ID Numbers: SMW 03
First Posted: May 5, 2009    Key Record Dates
Last Update Posted: March 15, 2017
Last Verified: March 2017

Keywords provided by Sven Möbius-Winkler, University of Leipzig:
eNOS Polymorphism
TNF alpha polymorphism
pulmonary pressure
polymorphism of vasoactive substances

Additional relevant MeSH terms:
Heart Failure
Hypertension, Pulmonary
Vascular Diseases
Cardiovascular Diseases
Heart Diseases
Lung Diseases
Respiratory Tract Diseases