- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04517955
TAVI in Intermediate Risk Septuagenarians With Risk Factors Not Captured by the Traditional Surgical Risk Scores
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The purpose of this study is to investigate the safety and efficacy of transcatheter aortic valve implantation (TAVI) in septuagenarians with severe, symptomatic Aortic Stenosis (AS) and risk factors for adverse surgical outcomes not captured by the traditional risk scores and therefore of intermediate surgical risk.
The primary objective of this trial is to evaluate device success of TAVI with the Evolut R and Evolut Pro systems in septuagenarians with risk factors for adverse surgical outcomes not captured by the traditional risk scores and therefore of intermediate surgical risk.
The secondary objective is to assess early safety (at 30 days) and clinical efficacy (after 30 days) of the TAVI procedure.
Exploratory objective: comparative health economics in septuagenarians with symptomatic severe aortic stenosis and intermediate surgical risk treated with Transcatheter Aortic Valve Implantation (TAVI) vs Surgical Aortic Valve Replacement (SAVR) (matched historic cohort)
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Dimitris Tousoulis, Prof
- Phone Number: +302132088099
- Email: tousoulis@med.uoa.gr
Study Contact Backup
- Name: Konstantinos Toutouzas, Prof
- Phone Number: +302132088099
- Email: ktoutouz@med.uoa.gr
Study Locations
-
-
-
Athens, Greece, 17674
- Not yet recruiting
- Onassis Cardiac Surgery Center
-
Contact:
- Vassilios Voudris, MD
-
Athens, Greece, 11527
- Not yet recruiting
- Cardiology Department, Hippokration Hospital
-
Contact:
- Dimitris Syrseloudis, MD
-
Athens, Greece, 11527
- Recruiting
- First Department of Cardiology, National & Kapodistrian University of Athens
-
Contact:
- Konstantinos Toutouzas, Prof
- Phone Number: +302132088099
- Email: ktoutouz@med.uoa.gr
-
Heraklion, Greece, 71110
- Not yet recruiting
- University Hospital of Heraklion
-
Contact:
- Fragkiskos Parthenakis, Prof
-
Ioannina, Greece, 45500
- Not yet recruiting
- University Hospital of Ioannina
-
Contact:
- Lampros Michalis, Prof
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Patients 75-79 years old who have symptomatic severe aortic stenosis at intermediate surgical risk defined by a Society of Thoracic Surgeons (STS) mortality risk of >=4% and <=8%, will be presented to the Heart Team for inclusion in the trial.
Patients will have risk factors not captured by traditional risk scores
Description
Inclusion Criteria:
- Age 75-79
- Subject must have Society of Thoracic Surgeons (STS) score >=4% and <=8%
Subject must have at least one from the risk factors presented below:
i. Severely atherosclerotic or porcelain aorta ii. Internal Mammary Artery (IMA) or other conduit(s) crossing midline and/or adherent to posterior table of sternum iii. Pre-existing mechanical valve in any other position iv. Severe right ventricular dysfunction v. Hostile chest (abnormal chest wall anatomy due to severe kyphoscoliosis or other skeletal abnormalities, evidence of severe radiation damage, history of multiple recurrent pleural effusions causing internal adhesions) vi. Severe liver disease/cirrhosis vii. Frailty viii. Malignancy with life expectancy that exceeds 24 months ix. Renal replacement therapy with creatinine levels >200mmol/L or 2.26 mg/dl
- Heart team consisting of at least one interventional cardiologist and one cardiac surgeon agree on indication and treatment proposal, based on their clinical judgment (including anatomy assessment, risk factors, etc)
- Critical aortic valve area defined as an initial aortic valve area of <=1cm2 or aortic valve index <0.6cm2/m2
In presence of normal left ventricular function:
- Mean gradient >40mmHg OR Vmax>4m/sec OR
- In presence of low flow, low gradient severe AS, a dobutamine stress echo must be conducted that demonstrates presence of contractile reserve defined as follows >=20% increase in stroke volume and mean gradient >40mmHg
- Subject is symptomatic from his/her aortic valve stenosis, as demonstrated by New York Heart Association (NYHA) Functional Class II or greater
- The subject is suitable for direct TAVI not preceded by balloon valvuloplasty according to the judgment of the treating physicians
- The subject and the treating physician agree that the subject will return for all required post procedure follow-up visits.
Exclusion Criteria:
- Hypersensitivity or contraindication to aspirin, heparin, clopidogrel, coumadin, nitinol, or sensitivity to contrast media which cannot be adequately pre-medicated;
- Blood dyscrasias as defined: leukopenia (WBC<1000/mm3), thrombocytopenia (platelet count <50.000cells/mm3), history of bleeding diathesis or coagulopathy;
- Ongoing sepsis, including active endocarditis
- Any condition considered a contraindication to extracorporeal assistance;
- Symptomatic carotid or vertebral artery disease or successful treatment of carotid stenosis within six weeks prior treatment
- Cardiogenic shock manifested by low cardiac output, vasopressor dependence or mechanical hemodynamic support;
- Recent (within 6 months) cerebrovascular accident (CVA) or transient ischemic attack (TIA)
- Active gastrointestinal (GI) bleeding within the past 3 months
- Subject refuses a blood transfusion;
- Severe dementia (resulting in either inability to provide informed consent for the trial/procedure, prevents independent lifestyle outside of a chronic care facility, or will fundamentally complicate rehabilitation from the procedure or compliance with follow-up visits);
- Multivessel coronary artery disease with a Syntax score >22
- Estimated life expectancy of less than 24 months due to associated non-cardiac comorbid conditions
- Other medical, social, or psychological conditions that in the opinion of the investigator precludes the subject from appropriate consentor adherence to the protocol required follow-up exams;
- Currently participating in an investigational drug or another device trial (excluding registries)
- Evidence of an acute myocardial infarction <=30 days before the index procedure
- Need for emergency surgery for any reason
Uncontrolled atrial fibrillation
Anatomical Exclusion Criteria:
- Native aortic annulus size <18mm or >30mm per the baseline diagnostic imaging;
- Mixed aortic valve disease [aortic stenosis and aortic regurgitation with predominant aortic regurgitation (3-4+]
- Severe mitral or severe tricuspid regurgitation
- Severe mitral stenosis;
- Hypertrophic obstructive cardiomyopathy
- Echocardiographic or Multislice Computed Tomography (MSCT) evidence of intracardiac mass, thrombus or vegetation
- Anatomy of the aortic root and ascending aorta not suitable for TAVI with Evolut R or Evolut Pro system (aortic root angulation >70 degrees for femoral and left subclavian access or >30 degrees for right subclavian access)
- Congenital bicuspid or unicuspid valve verified by echocardiography Vascular Exclusion Criteria
- Transarterial access not able to accommodate an 16 French sheath
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Device success (VARC-2 criteria)
Time Frame: 30 days
|
|
30 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Rate of All-cause mortality
Time Frame: 30 days
|
Early Safety
|
30 days
|
Rate of All stroke (disabling and non-disabling)
Time Frame: 30 days
|
Early Safety
|
30 days
|
Rate of Life-threatening bleeding
Time Frame: 30 days
|
Early Safety
|
30 days
|
Rate of Acute Kidney Injury-Stage 2 or 3 (including renal replacement therapy)
Time Frame: 30 days
|
Early Safety
|
30 days
|
Rate of Coronary artery obstruction requiring intervention
Time Frame: 30 days
|
Early Safety
|
30 days
|
Rate of Major vascular complication
Time Frame: 30 days
|
Early Safety
|
30 days
|
Rate of Valve-related dysfunction requiring repeat procedure (BAV, TAVI or SAVR)
Time Frame: 30 days
|
Early Safety
|
30 days
|
Rate of New pacemaker implantation
Time Frame: 30 days
|
Early Safety
|
30 days
|
Rate of All-cause mortality
Time Frame: after 30 days and up to 2 years
|
Clinical Efficacy
|
after 30 days and up to 2 years
|
Rate of All stroke (disabling and non-disabling)
Time Frame: after 30 days and up to 2 years
|
Clinical Efficacy
|
after 30 days and up to 2 years
|
Rate of Hospitalizations for valve-related symptoms or worsening congestive heart failure NYHA class III or IV
Time Frame: after 30 days and up to 2 years
|
Clinical Efficacy
|
after 30 days and up to 2 years
|
Rate of Valve related dysfunction
Time Frame: after 30 days and up to 2 years
|
Mean aortic valve gradient >=20mmHg, Effective orifice area (EOA)<=0.9-1.1cm2,
and/or Dimensionless Valve Index (DVI)<0.35
m/s and/or moderate or severe prosthetic valve regurgitation
|
after 30 days and up to 2 years
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Dimitris Tousoulis, Prof, First Department of Cardiology, University of Athens
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- 088891/2019
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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