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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT04788888




Registration number
NCT04788888
Ethics application status
Date submitted
2/03/2021
Date registered
9/03/2021
Date last updated
19/09/2024

Titles & IDs
Public title
Evaluation of TAVR Using the NAVITOR Valve in a Global Investigation
Scientific title
VANTAGE Clinical Trial Evaluation of TAVR Using the NAVITOR Valve in a Global Investigation
Secondary ID [1] 0 0
ABT-CIP-10342
Universal Trial Number (UTN)
Trial acronym
VANTAGE
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Symptomatic Severe Aortic Stenosis 0 0
Condition category
Condition code
Cardiovascular 0 0 0 0
Diseases of the vasculature and circulation including the lymphatic system

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Devices - Navitor Transcatheter Aortic Valve and FlexNav Delivery System

Experimental: Navitor Transcatheter Aortic Valve, FlexNav Delivery System - Navitor Transcatheter Aortic Valve System Navitor valves (23mm, 25mm, 27mm, 29mm, and 35mm Titan valve), FlexNav Delivery system (small and large) and and Navitor Loading System (small, large, and LG+)


Treatment: Devices: Navitor Transcatheter Aortic Valve and FlexNav Delivery System
For traditional application, the Navitor valve is indicated for transcatheter delivery in patients with symptomatic severe native aortic stenosis who are intermediate or low surgical risk.

For the valve-in-valve application, the Navitor valve is indicated for use in patients with symptomatic heart disease due to failure (stenosed, insufficient, or combined) of a surgical bioprosthetic aortic valve.

Subjects will undergo transcatheter aortic valve replacement (TAVR) with the Navitor valve and FlexNav Delivery system
Intervention code [1] 0 0
Treatment: Devices
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Incidence of a composite of all-cause mortality or fatal stroke/stroke with disability at 12 months (Primary Safety Endpoint)
Timepoint [1] 0 0
12 months post index procedure
Primary outcome [2] 0 0
The proportion of subjects who have moderate or greater paravalvular leak at 30 days (Primary Effectiveness Endpoint)
Timepoint [2] 0 0
30 days post index procedure
Secondary outcome [1] 0 0
Transvalvular gradient
Timepoint [1] 0 0
12 months post index procedure
Secondary outcome [2] 0 0
Effective orifice area
Timepoint [2] 0 0
12 months post index procedure
Secondary outcome [3] 0 0
KCCQ quality of life score
Timepoint [3] 0 0
12 months post index procedure

Eligibility
Key inclusion criteria
1. Subject who is judged by a Heart Team, including a cardiac surgeon, to be appropriate for transcatheter heart valve intervention therapy, and is deemed to be at intermediate or low risk for open surgical aortic valve replacement (i.e., heart team estimates risk of surgical mortality < 7% at 30 days, considering the Society of Thoracic Surgeons (STS) risk score, overall clinical status, and other clinical co-morbidities unmeasured by the risk calculator). *
2. New York Heart Association (NYHA) Functional Classification of II, III, or IV *
3. Degenerative aortic valve stenosis with echo-derived criteria, defined as:

aortic valve area (AVA) of = 1.0 cm2 (or indexed EOA = 0.6 cm2/m2) AND either mean gradient = 40 mmHg or peak jet velocity = 4.0 m/s or doppler velocity index (DVI) = 0.25. The echocardiogram supporting the qualifying AVA baseline measurement must be performed within 90 days prior to informed consent). *
4. Aortic annulus diameter of 19-30 mm and ascending aorta diameter of 26-44 mm for the specified valve size listed in the IFU, as measured by CT (systolic phase) conducted within 12 months prior to informed consent.
Minimum age
18 Years
Maximum age
100 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
1. Life expectancy is less than 2 years in the opinion of the Investigator.
2. Evidence of an acute myocardial infarction [defined as ST-segment elevation myocardial infarction (STEMI) or non-ST-segment elevation myocardial infarction (NSTEMI) with acute ischemia symptoms and troponin elevation] within 30 days prior to index procedure.
3. Untreated clinically significant coronary artery disease requiring revascularization.
4. Any percutaneous coronary or peripheral interventional procedure performed within 30 days prior (except pacemaker or implantable cardioverter defibrillator (ICD) implant) to index procedure or planned within 30 days following the index procedure.
5. Blood dyscrasias as defined: leukopenia (WBC < 3000 mm3), acute anemia (Hb < 9 g/dL), thrombocytopenia (platelet count < 50,000 cells/mm³); history of bleeding diathesis or coagulopathy
6. Active peptic ulcer or upper GI bleeding within 3 months prior to index procedure that would preclude anticoagulation
7. Recent (within 6 months prior to index procedure date) cerebrovascular accident (CVA) or a transient ischemic attack (TIA)
8. Renal insufficiency (creatinine > 3.0 mg/dL or eGFR < 30 ml/min/1.73m2) and/ or end stage renal disease requiring chronic dialysis
9. Hostile chest or conditions or complications from prior surgery that would make the subject be considered high surgical risk (i.e., mediastinitis, radiation damage, abnormal chest wall, porcelain aorta, adhesion of aorta or internal mammary artery to sternum, etc.) *
10. Significant frailty as determined by the heart team (after objective assessment of frailty parameters) that would indicate high or extreme surgical risk *
11. Mixed aortic valve disease (aortic stenosis and aortic regurgitation with predominant aortic regurgitation 3-4+) *
12. Aortic valve is a congenital unicuspid or congenital bicuspid valve as verified by echocardiography or CT *
13. Severe ventricular dysfunction with LVEF < 30% as measured by resting echocardiogram
14. Pre-existing prosthetic heart valve or other implant (such as prosthetic ring or transcatheter edge-to-edge repair (TEER) clip) in any valve position * (Note: Subjects with a bioprosthetic aortic valve may be included in the ViV cohort.)
15. Severe circumferential mitral annular calcification (MAC) which is continuous with calcium in the left ventricular outflow tract (LVOT) *
16. Severe (greater than or equal to 3+) mitral regurgitation or severe mitral stenosis with pulmonary compromise
17. Minimum access vessel diameter of < 5.0 mm for small FlexNav Delivery System and < 5.5 mm for large FlexNav Delivery System
18. Eccentricity ratio of the annulus < 0.73

* Criterion not applicable for valve-in-valve application

Study design
Purpose of the study
Treatment
Allocation to intervention
Not applicable
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
Phase
Not applicable
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
13/06/2021
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
28/02/2036
Actual
Sample size
Target
590
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
St. Andrew's Hospital - Adelaide
Recruitment hospital [2] 0 0
The Alfred Hospital - Melbourne
Recruitment hospital [3] 0 0
Fiona Stanley Hospital - Murdoch
Recruitment hospital [4] 0 0
Macquirie University Hopsital - Ryde
Recruitment hospital [5] 0 0
Prince of Wales Hospital - Sydney
Recruitment hospital [6] 0 0
Princess Alexandra Hospital - Woolloongabba
Recruitment postcode(s) [1] 0 0
- Adelaide
Recruitment postcode(s) [2] 0 0
- Melbourne
Recruitment postcode(s) [3] 0 0
WA 6150 - Murdoch
Recruitment postcode(s) [4] 0 0
- Ryde
Recruitment postcode(s) [5] 0 0
NSW 2031 - Sydney
Recruitment postcode(s) [6] 0 0
QLD 4102, - Woolloongabba
Recruitment outside Australia
Country [1] 0 0
Austria
State/province [1] 0 0
Graz
Country [2] 0 0
Austria
State/province [2] 0 0
Linz
Country [3] 0 0
Austria
State/province [3] 0 0
Vienna
Country [4] 0 0
Denmark
State/province [4] 0 0
Copenhagen
Country [5] 0 0
France
State/province [5] 0 0
Clermont-Ferrand
Country [6] 0 0
France
State/province [6] 0 0
Pessac
Country [7] 0 0
France
State/province [7] 0 0
Toulouse
Country [8] 0 0
Germany
State/province [8] 0 0
Bad Nauheim
Country [9] 0 0
Germany
State/province [9] 0 0
Berlin
Country [10] 0 0
Germany
State/province [10] 0 0
Dortmund
Country [11] 0 0
Germany
State/province [11] 0 0
Dresden
Country [12] 0 0
Germany
State/province [12] 0 0
Frankfurt
Country [13] 0 0
Germany
State/province [13] 0 0
Hamburg
Country [14] 0 0
Germany
State/province [14] 0 0
Leipzig
Country [15] 0 0
Germany
State/province [15] 0 0
Mainz
Country [16] 0 0
Germany
State/province [16] 0 0
München
Country [17] 0 0
Italy
State/province [17] 0 0
Caserta
Country [18] 0 0
Italy
State/province [18] 0 0
Padua
Country [19] 0 0
Italy
State/province [19] 0 0
Milan
Country [20] 0 0
Netherlands
State/province [20] 0 0
Rotterdam
Country [21] 0 0
Spain
State/province [21] 0 0
Alicante
Country [22] 0 0
Spain
State/province [22] 0 0
Barcelona
Country [23] 0 0
Spain
State/province [23] 0 0
Madrid
Country [24] 0 0
Spain
State/province [24] 0 0
Sevilla
Country [25] 0 0
Switzerland
State/province [25] 0 0
Zürich
Country [26] 0 0
United Kingdom
State/province [26] 0 0
Belfast
Country [27] 0 0
United Kingdom
State/province [27] 0 0
Leeds
Country [28] 0 0
United Kingdom
State/province [28] 0 0
London
Country [29] 0 0
United Kingdom
State/province [29] 0 0
Swansea

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
Abbott Medical Devices
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Evaluation of TAVR using the NAVITOR valve in a Global Investigation.
Trial website
https://clinicaltrials.gov/study/NCT04788888
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Stephen Worthley, M.D., Ph. D.
Address 0 0
Macquarie University Hospital
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Christophe Van Dyck
Address 0 0
Country 0 0
Phone 0 0
+32 470 20 10 21
Fax 0 0
Email 0 0
[email protected]
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT04788888