Smoking: a Risk Factor for Pulmonary Arterial Hypertension? (DACH)

This study is currently recruiting participants.
Verified November 2011 by University of Zurich
Sponsor:
Information provided by (Responsible Party):
University of Zurich
ClinicalTrials.gov Identifier:
NCT01484899
First received: November 28, 2011
Last updated: November 30, 2011
Last verified: November 2011
  Purpose

Environmental factors may play a role in the genesis of pulmonary hypertension, especially in endothelial dysfunction. One widespread environmental factor associated with systemic endothelial dysfunction is cigarette smoke. It may well be that cigarette smoking is not only a risk factor for systemic but also for pulmonary vascular diseases and herewith may interact with other risk factors such as a genetic background and associated conditions. The existing studies which deal with this subject are only small single center case control studies providing less data. Therefore a large European multicenter study is necessary.

The investigators hypothesis are:

  • a history of tobacco smoke exposure is highly prevalent in patients with PAH compared to the unaffected general population.
  • a history of tobacco smoke exposure is more prevalent in patients with PAH compared to CTEPH.

Condition
Pulmonary Hypertension

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Smoking: a Risk Factor for Pulmonary Arterial Hypertension? A D-A-CH Pulmonary Hypertension Study (Germany- Austria - Switzerland)

Resource links provided by NLM:


Further study details as provided by University of Zurich:

Primary Outcome Measures:
  • Difference in Prevalence of Smoking history in patients with PAH compared to unaffected general population [ Time Frame: Assessment during outpatient consultation, an expected average of 1 day. ] [ Designated as safety issue: No ]
    Patients will be asked with a specific questionnaire concerning their tobacco smoke exposure and smoking history. Control-group: Data from Swiss health survey (SHS) 2007 (Gesundheitsbefragung Schweiz).


Estimated Enrollment: 1000
Study Start Date: September 2011
Groups/Cohorts
PAH
Patients with pulmonary arterial hypertension (PH). PH defined as mean pulmonary artery pressure >25mmHg with a pulmonary capillary occlusion pressure ≤ 15mmHg
CTEPH
Patients with chronic thromboembolic pulmonary hypertension. CTEPH defined as mean pulmonary artery pressure >25mmHg with a pulmonary capillary occlusion pressure ≤ 15mmHg.
Controll group
Data from 16322 (10336 females) participants of the Swiss health survey (SHS) 2007 will serve as control. The SHS was performed in 2007, a representative sample of 30000 Swiss citizens were asked to participate, 66% answered per telephone to detailed health question.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population

All patients seen at participating DACH -PH centers who have PH defined as mean pulmonary artery pressure >25mmHg with a pulmonary capillary occlusion pressure ≤15mmHg will be asked to participate upon written informed consent

Criteria

Inclusion Criteria:

  • pulmonary artery pressure >25mmHg
  • pulmonary capillary occlusion pressure ≤15mmHg

Exclusion Criteria:

  • pulmonary artery pressure <25mmHg
  • pulmonary capillary occlusion pressure >15mmHg
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01484899

Contacts
Contact: Silvia Ulrich, MD 0041442554362 silvia.ulrich@usz.ch

Locations
Austria
University Hospital of Graz Recruiting
Graz, Austria
Contact: Gabor Kovacs, M.D.            
University Hospital of Innsbruck Recruiting
Innsbruck, Austria
Contact: Cris Kähler, M.D.            
Germany
University Hospital Dresden Recruiting
Dresden, Germany
Contact: Michael Halank, M.D.         michael.halank@uniklinikum-dresden.de    
University of Greifswald Recruiting
Greifswald, Germany
Contact: Tom Bollmann            
University Hospital of Heidelberg Recruiting
Heidelberg, Germany
Contact: Ekkehard Grüning            
University hospital of Homburg Recruiting
Homburg, Germany
Contact: Heinrike Wilkens            
University Hospital of Regensburg Recruiting
Regensburg, Germany
Contact: Tobias Lange, M.D.            
University Hospital of Würzburg Recruiting
Würzburg, Germany
Contact: Mattias Held, M.D.            
Switzerland
University Hospital Zurich Recruiting
Zurich, Switzerland, 8091
Contact: Silvia Ulrich, MD     0041442554362     silvia.ulrich@usz.ch    
Sponsors and Collaborators
University of Zurich
Investigators
Principal Investigator: Silvia Ulrich, MD Respiratory Clinic, Departement Heart, Vessel, Thorax, University Hospital Zurich
  More Information

No publications provided

Responsible Party: University of Zurich
ClinicalTrials.gov Identifier: NCT01484899     History of Changes
Other Study ID Numbers: DACH_1
Study First Received: November 28, 2011
Last Updated: November 30, 2011
Health Authority: Switzerland: Swissmedic

Keywords provided by University of Zurich:
Pulmonary arterial Hypertension
Chronic thromboembolic pulmonary hypertension
smoking

Additional relevant MeSH terms:
Hypertension, Pulmonary
Hypertension
Smoking
Lung Diseases
Respiratory Tract Diseases
Vascular Diseases
Cardiovascular Diseases
Habits

ClinicalTrials.gov processed this record on June 18, 2013