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The Swiss Venous Thromboembolism Cohort 65+ (SWITCO65+)

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: NCT00973596
Recruitment Status : Completed
First Posted : September 9, 2009
Last Update Posted : December 2, 2014
Information provided by (Responsible Party):
Drahomir Aujesky, University of Bern

Brief Summary:
The purpose of this prospective multicenter cohort study is to examine long-term medical outcomes, quality of life, and medical resource utilization in elderly patients (>= 65 years) with acute venous thromboembolism (i.e., acute pulmonary embolism and/or deep vein thrombosis)

Condition or disease
Venous Thromboembolism

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Study Type : Observational
Actual Enrollment : 1003 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Swiss Venous Thromboembolism Cohort Study of Elderly Patients With Acute Venous Thromboembolism
Study Start Date : September 2009
Actual Primary Completion Date : March 2012
Actual Study Completion Date : December 2013

Primary Outcome Measures :
  1. Venous thromboembolism recurrence [ Time Frame: 3-48 months ]

Secondary Outcome Measures :
  1. Overall mortality [ Time Frame: 3-48 months ]
  2. Major bleeding [ Time Frame: 3-48 months ]
  3. Post-thrombotic syndrome [ Time Frame: 3-48 months ]
  4. Generic and disease-specific health-related quality of life [ Time Frame: 3-48 months ]
  5. Medical resource utilization [ Time Frame: 3-48 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   65 Years and older   (Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Outpatients and inpatients with acute venous thromboembolism from 9 Swiss university and non-university hospitals

Inclusion Criteria:

  • Objectively confirmed acute pulmonary embolism and/or deep vein thrombosis
  • Age >=65 years

Exclusion Criteria:

  • Thrombosis at a different site than lower limb
  • Catheter-related thrombosis
  • Insufficient spoken language ability in German or French
  • Follow-up not possible (e.g., terminally ill patients)
  • Informed consent not possible (e.g., severe dementia)
  • Prior enrolment in the study

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): NCT00973596

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Kantonsspital Baden
Baden, Switzerland
University Hospital of Basel
Basel, Switzerland
University Hospital of Bern
Bern, Switzerland
Kantonsspital Frauenfeld
Frauenfeld, Switzerland
University Hospital of Geneva
Geneva, Switzerland
University Hospital of Lausanne
Lausanne, Switzerland
Kantonsspital Luzern
Luzern, Switzerland
Kantonsspital St. Gallen
St. Gallen, Switzerland
University Hospital of Zurich
Zurich, Switzerland
Sponsors and Collaborators
University of Lausanne Hospitals
Publications automatically indexed to this study by Identifier (NCT Number):

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Responsible Party: Drahomir Aujesky, Director of the Division of General Internal Medicine, University of Bern Identifier: NCT00973596    
Other Study ID Numbers: 33CSCO-122 659/139 470
First Posted: September 9, 2009    Key Record Dates
Last Update Posted: December 2, 2014
Last Verified: December 2014
Additional relevant MeSH terms:
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Venous Thromboembolism
Embolism and Thrombosis
Vascular Diseases
Cardiovascular Diseases