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

NCT ID: NCT00677638

Last Updated: 2009-12-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-06-30

Study Completion Date

2014-12-31

Brief Summary

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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.

Detailed Description

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Conditions

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Aortic Valve Disease

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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1

Embracer implantation

Group Type EXPERIMENTAL

Ventor Embracer

Intervention Type DEVICE

Implantation of Ventor Embracer

Interventions

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Ventor Embracer

Implantation of Ventor Embracer

Intervention Type DEVICE

Eligibility Criteria

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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

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
Minimum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ventor Technologies

INDUSTRY

Sponsor Role lead

Responsible Party

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Ventor Technologies

Principal Investigators

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Jochen Schaefers, MD

Role: PRINCIPAL_INVESTIGATOR

Universitatsklinikum des Saarlandes

Friedrich Mohr, MD

Role: PRINCIPAL_INVESTIGATOR

Universität Leipzig

Locations

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Prof. Thorsten Wahlers

Cologne, , Germany

Site Status

Prof. Jochen Schaefers

Homburg, , Germany

Site Status

Friedrich Mohr, MD

Leipzig, , Germany

Site Status

Countries

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Germany

References

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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.

Reference Type DERIVED
PMID: 21148541 (View on PubMed)

Other Identifiers

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CLIN004

Identifier Type: -

Identifier Source: org_study_id