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Takotsubo SyndromeNCT01249599

Stress-induced Vascular Dysfunction: Evaluation of Endothelial Function in a Cohort of Patients With Takotsubo Syndrome

An observational study of Takotsubo Syndrome, run by University of Zurich at 1 site in Switzerland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this prospective single-center study is to evaluate endothelial function, arterial compliance, sympathetic nervous activity at rest and after mental and physical stress, carotid atherosclerosis, oxidative stress parameters, quality of life and platelet adhesion in patients with apical ballooning syndrome… Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Takotsubo Syndrome
What is being tested?
blood sample analysis
Type of treatment
Surgery or procedure
How many people
44 participants
Where
1 siteSwitzerland
Study dates
Nov 2010to Oct 2012
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: male or female subjects, age 18-80 with a diagnosis of Takotsubo Syndrome according to standard clinical criteria [Strony, J., et al., Analysis of shear stress and hemodynamic factors in a model of coronary artery stenosis and thrombosis. Am J Physiol, 1993. 265 (5 Pt 2): p. H1787-96.] in the last 10 years.

Who may be able to join

None listed.

Who cannot join

  • Long acting nitrates, or PDE-5-Hemmer
  • Alcohol or drug abuse,
  • Malignancy (unless healed or remission > 5 years)
  • Disease with systemic inflammation (e.g. rheumatoid arthritis, M. Crohn)
  • Pulmonary Hypertension
  • Participation in another study within the last month

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • University Hospital Zurich, Division of Cardiology

    Zurich, Canton of Zurich, 8091

Other trials in Switzerland

About this study

The aim of this prospective single-center study is to evaluate endothelial function, arterial compliance, sympathetic nervous activity at rest and after mental and physical stress, carotid atherosclerosis, oxidative stress parameters, quality of life and platelet adhesion in patients with apical ballooning syndrome and age-matched controls.

Read the detailed description

The aim of this prospective single-center study is to evaluate endothelial function, arterial compliance, sympathetic nervous activity at rest and after mental and physical stress, carotid atherosclerosis, oxidative stress parameters, quality of life and platelet adhesion in patients with Takotsubo Syndrome (apical ballooning syndrome/broken heart syndrome) and age-matched controls.

Being tested
blood sample analysis
Keywords
Takotsubo Syndrome, apical balooning syndrome, stress-cardiomyopathy, endothelial function, sympathetic nervous activity, platelet adhesion, arterial compliance
Medical subject headings
Takotsubo Cardiomyopathy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • blood sample analysisProcedure or surgery

    The aim of this prospective single-center study is to evaluate endothelial function, vascular compliance, oxidative stress parameters, quality of life and platelet adhesion in patients with apical ballooning syndrome and age-matched controls.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Endothelial function as flow mediated dilatation

    Evaluation of endothelial function as flow mediated dilation in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors

    Measured: baseline

Secondary outcomes (8)
  1. Evaluation of vascular compliance as pulse wave analysis

    Comparison of vascular compliance as pulse wave analysis in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors

    Measured: baseline

  2. Evaluation of pulse wave velocity

    Comparison of pulse wave velocity in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors

    Measured: baseline

  3. Evaluation of carotid atherosclerosis as intima-media-thickness and total plaque area

    Comparison of carotid atherosclerosis as intima-media-thickness and total plaque area in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors

    Measured: baseline

  4. Measurement of sympathetic nervous activity

    Comparison of sympathetic nervous activity at rest, after cold pressor test and after mental stress tests in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors

    Measured: baseline

  5. Evaluation of platelet adhesion

    Comparison of shear-stress dependent platelet adhesion by the Cone and Platelet Analyzer in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors

    Measured: baseline

  6. Evaluation of oxidative stress parameters

    Comparison of oxidative stress parameters in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors

    Measured: baseline

  7. Evaluation of tissue factor plasma level

    Comparison of tissue factor plasma level in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors

    Measured: baseline

  8. Assessment of quality of life and perceived stress, anxiety and depression

    Comparison of "quality of life" and "perceived stress, anxiety and depression" in patients with apical ballooning syndrome and controls matched for age and cardiovascular risk factors Quality of life will be assessed using the German version of the European Quality of Life Questionnaire EQ-5D (www.euroqol.org). Perceived stress, anxiety and depression will be assessed by the Hospital Anxiety and Depression Scale.

    Measured: baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Nov 2010 (estimated)
  2. Study startNov 2010
  3. Primary completionOct 2012
  4. Study completionOct 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Time perspective
Prospective
Enrolment
44 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01249599
Sponsor's protocol ID
2010-0210/1
Status last verified
Dec 2012
First submitted
22 Nov 2010
Last updated
11 Dec 2012
Results posted
No
Data monitoring committee
Yes

Publications

  • Naegele M, Flammer AJ, Enseleit F, Roas S, Frank M, Hirt A, Kaiser P, Cantatore S, Templin C, Frohlich G, Romanens M, Luscher TF, Ruschitzka F, Noll G, Sudano I. Endothelial function and sympathetic nervous system activity in patients with Takotsubo syndrome. Int J Cardiol. 2016 Dec 1;224:226-230. doi: 10.1016/j.ijcard.2016.09.008. Epub 2016 Sep 12.

    PubMed 27661411

Questions about this trial

What is this clinical trial studying?

An observational study of Takotsubo Syndrome, run by University of Zurich at 1 site in Switzerland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 0 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Dec 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Endothelial function as flow mediated dilatation (time frame: baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01249599, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Dec 2012.

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