CClinicalTrials.gg
Status unknownNCT00677638Updated Dec 3, 2009

Transapical Implantation of Ventor Embracer™ Valve in Patients With Severe Aortic Valve Disease

An interventional study of Ventor Embracer in Aortic Valve Disease, sponsored by Ventor Technologies. Status unknown at 3 sites in Germany. Open to participants aged 75 Years and older. Per ClinicalTrials.gov, last updated 2009-12-03.

Sponsored by Ventor Technologies · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Dec 2009), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
30
Allocation
Not applicable
Ages
75 Years and older
Sex
All
01

Study summary

A prospective single arm study evaluating feasibility and safety of a catheter-based transapical implantation of the Ventor Embracer™ aortic valve bioprosthesis in patients with severe aortic valve disease, specifically aortic stenosis, who are at elevated risk for standard surgical valve replacement.

02

Conditions studied

03

In context

Aortic Valve Disease

231 studies on the registry are indexed under Aortic Valve Disease; 76 are open to participants now.

This study's planned enrollment of 30 is below the median of 108 across 116 interventional studies indexed under Aortic Valve Disease.

Browse Aortic Valve Disease studies →

Lead sponsor

This is the only study on the registry with Ventor Technologies as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
75 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Patient understands the implications of participating in the study and provides informed consent
  2. Patient is willing to comply with specified follow-up evaluation and can be contacted by telephone
  3. Age >75 years
  4. Severe, aortic stenosis (echocardiographically derived mean gradient > 40 mm Hg, and/or jet velocity > 4m/s, or an initial aortic valve area of \< 0.8 cm2)
  5. Symptoms related to the aortic valve disease, as demonstrated by NYHA Functional Class II or greater
  6. EuroSCORE scale of >9 points indicating a predicted risk for mortality of >11% according to the logistic EuroSCORE
  7. Echocardiographically determined anteroposterior aortic annulus diameter of >19 and \<23 mm
  8. Echocardiographically determined sinotubular junction diameter of ≥23 mm

Exclusion criteria

Exclusion Criteria:

  1. Congenital unicuspid or bicuspid aortic valve
  2. Fused commissures
  3. Severe eccentricity of calcification
  4. Echocardiographic evidence of intracardiac mass, thrombus, or vegetation.
  5. Severe left ventricular dysfunction (LVEF \< 25%)
  6. More than mild right ventricular dysfunction
  7. Hypertrophic obstructive cardiomyopathy
  8. Moribund patients, or patients with a noncardiac disease limiting by itself life expectancy to less than 12 months
  9. Known hypersensitivity or contraindication to any study medication
  10. Known sensitivity to contrast medium that cannot be adequately controlled with pre-medication
  11. Known allergy or sensitivity to Nitinol
  12. Sepsis, or acute endocarditis
  13. Blood dyscrasia such as acute anemia, leucopenia, or thrombocytopenia; bleeding diathesis, or coagulopathy.
  14. Renal insufficiency and/or end stage renal disease requiring chronic dialysis
  15. Liver disease as indicated by jaundice, ascites, ALT/AST > 3 x ULN, elevation of total bilirubin > 1.5 mg/dl, albumin \< 3.0 g/l, or INR > 1.5 (if not on anticoagulation).
  16. Significant lung disease (e.g. FEV1 \< 1.2L or FEV1 \< 50%).
  17. Active peptic ulcer or GI bleeding within 3 months from the planned index procedure
  18. Untreated clinically significant coronary artery disease requiring revascularisation
  19. Cardiogenic shock, suspected cardiogenic shock, or hemodynamic instability requiring inotropic support or mechanical heart assistance
  20. Peripheral vascular disease, including abdominal and thoracic aortic disease, which could pose a problem for eventual transarterial mechanical support (e.g. Intraaortic Balloon Pump)
  21. Need for emergency surgery, cardiac or noncardiac
  22. History of myocardial infarction in the last 6 weeks.
  23. History of TIA or stroke in the last 6 months.
  24. Any therapeutic invasive cardiac procedure, except aortic balloon valvuloplasty, performed within 30 days from the planned index procedure, or 6 months, in case of implantation of drug-eluting stents.
  25. Uncontrolled atrial fibrillation
  26. Pre-existing aortic valve replacement
  27. Severe (greater than 3+) mitral regurgitation
  28. Severe (greater than 3+) aortic regurgitation
  29. Patient is currently enrolled in another investigational device or drug trial
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    1

    Embracer implantation

    Device: Ventor Embracer

Interventions

  • DeviceVentor Embracer

    Implantation of Ventor Embracer

06

What researchers measure

Primary outcomes

  1. Stable device placement and adequate function as assessed by angiography and echocardiography immediately post-procedure

    Time frame: day one

  2. A composite of any death, myocardial infarction, or disabling stroke at 30 days post-procedure

    Time frame: 30 days

Secondary outcomes

  1. Device success and the absence of periprocedural MACCEs at post-operative day 1

    Time frame: day one

  2. Any of the following adverse events: death, myocardial infarction, disabling stroke, repeat aortic valve procedure, cardiogenic shock, or endocarditis at 30 days

    Time frame: 30 days

  3. Any of the following adverse events: death, disabling stroke, repeat aortic valve procedure or endocarditis at 6 months

    Time frame: 6 months

  4. Freedom from death at 1 year

    Time frame: 1 year

  5. Functional improvement from baseline per New York Heart Association (NYHA) functional classification at 30 days, 6 months and 1 year

    Time frame: 1 year

  6. Peak & mean pressure gradient, derived calculated measures of prosthetic valve function, aortic regurgitation - assessed by echocardiography immediately after deployment, at POD 1, 30 days, 6 months and 5 years annually

    Time frame: 5 years

07

Study locations

3 sites
  • Prof. Jochen Schaefers
    Homburg, 66421, Germany
  • Prof. Thorsten Wahlers
    Koln, 50924, Germany
  • Friedrich Mohr, MD
    Leipzig, 04289, Germany
08

References and documents

Publications

  • Falk V, Walther T, Schwammenthal E, Strauch J, Aicher D, Wahlers T, Schafers J, Linke A, Mohr FW. Transapical aortic valve implantation with a self-expanding anatomically oriented valve. Eur Heart J. 2011 Apr;32(7):878-87. doi: 10.1093/eurheartj/ehq445. Epub 2010 Dec 9. PubMed 21148541 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 3, 2009, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00677638
Lead sponsor
Ventor Technologies
First posted
May 14, 2008
Start date
Jun 2008
Primary completion
Jan 2010 (estimated)
Completion
Dec 2014 (estimated)
Last update
Dec 3, 2009

Study contacts

Jochen Schaefers, MD
principal investigator · Universitatsklinikum des Saarlandes
Friedrich Mohr, MD
principal investigator · Universität Leipzig

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Dec 2009. You cannot join it, but the record below documents what was studied.

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