Evaluation of TAVR Using the NAVITOR Valve in a Global Investigation (VANTAGE)
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ClinicalTrials.gov Identifier: NCT04788888 |
Recruitment Status :
Recruiting
First Posted : March 9, 2021
Last Update Posted : January 9, 2023
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Condition or disease | Intervention/treatment | Phase |
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Symptomatic Severe Aortic Stenosis | Device: Navitor Transcatheter Aortic Valve and FlexNav Delivery System | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 590 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | VANTAGE Clinical Trial Evaluation of TAVR Using the NAVITOR Valve in a Global Investigation |
Actual Study Start Date : | June 13, 2021 |
Estimated Primary Completion Date : | April 30, 2025 |
Estimated Study Completion Date : | February 28, 2036 |

Arm | Intervention/treatment |
---|---|
Experimental: Navitor Transcatheter Aortic Valve, FlexNav Delivery System
Navitor valve implantation, FlexNav Delivery system (small and large) and and Navitor Loading System (small and large)
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Device: 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 |
- Primary safety and effectiveness endpoint is a composite of all-cause mortality or disabling stroke [ Time Frame: 12 months ]
- Non-hierarchical composite of all-cause mortality, disabling stroke, life threatening bleeding, acute kidney injury (stage 3), or major vascular complications [ Time Frame: 30 days ]
- Non-hierarchical composite of all-cause mortality or stroke [ Time Frame: 12 months ]
- Procedural success defined as successful vascular access, delivery and deployment of the Navitor valve; retrieval with the delivery system and correct positioning of a single Navitor valve in the proper anatomical location and no procedural mortality [ Time Frame: Procedure ]
- Mortality (all-cause and cardiovascular-related) [ Time Frame: 30 days and 12 months ]
- Stroke (All stroke, disabling, and non-disabling) [ Time Frame: 30 days and 12 months ]
- Transient ischemic attack (TIA) [ Time Frame: 30 days and 12 months ]
- Bleeding (life threatening, disabling, and major) [ Time Frame: 30 days ]
- Major vascular complications at 30 days [ Time Frame: 30 days ]
- Acute kidney injury (Stage 3 requiring dialysis, Stage 3, and Stage 2) [ Time Frame: 30 days ]
- Permanent pacemaker insertion [ Time Frame: 30 days and 12 months ]
- Myocardial infarction [ Time Frame: 30 days and 12 months ]
- Coronary obstruction requiring intervention [ Time Frame: 30 days and 12 months ]
- Changes in functional status from baseline to follow-up assessments (e.g., NYHA classification, six-minute walk test, quality of life measures) [ Time Frame: 30 days and 12 months ]
- Rehospitalization (valve-related, procedure-related, or heart failure) [ Time Frame: 30 days and 12 months ]
- Paravalvular leak (none/trace, mild, moderate or severe) [ Time Frame: Discharge, 30 days, 12 months and annually (when collected) through 10 years ]
- Changes in echocardiographic parameters from baseline to follow-up (e.g., mean effective orifice area, mean transvalvular gradient) [ Time Frame: 30 days, 12 months and annually (when collected) through 10 years ]
- Aortic valve reintervention [ Time Frame: at 30 days, 12 months, and annually through 10 years ]
- Prosthetic valve endocarditis [ Time Frame: 12 months and annually through 10 years ]
- Structural valve deterioration [ Time Frame: 12 months and annually through 10 years ]
- Successful coronary access as needed [ Time Frame: 12 months and annually through 10 years ]
- Symptomatic prosthetic valve thrombosis [ Time Frame: 12 months and annually through 10 years ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 100 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- In the judgement of the site's heart team, subject 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
- New York Heart Association (NYHA) Functional Classification of II, III, or IV
Exclusion Criteria:
- Evidence of an acute myocardial infarction [defined as: Q wave MI, or non-Q wave MI with total CK elevation of CK-MB ≥ twice normal in the presence of MB elevation and/or troponin level elevation (WHO definition)] within 30 days prior to index procedure
- Untreated clinically significant coronary artery disease requiring revascularization
- Any percutaneous coronary or peripheral interventional procedure performed within 30 days prior (except pacemaker or ICD implant) to index procedure or planned within 30 days following the index procedure.
- 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
- Recent (within 6 months prior to index procedure date) cerebrovascular accident (CVA) or a transient ischemic attack (TIA)
- Renal insufficiency (creatinine > 3.0 mg/dL or estimated GFR <30 ml/min/1.73m2) and/or end stage renal disease requiring chronic dialysis
- Untreated atrial fibrillation (e.g., patients with atrial fibrillation not on anticoagulants)
- Symptomatic carotid or vertebral artery disease, significant carotid or vertebral artery disease requiring intervention, or successful treatment of carotid or vertebral stenosis within 30 days prior to index procedure
- Severe pulmonary hypertension with pulmonary systolic pressure greater than two-thirds of systemic pressure
- Severe lung disease (FEV1 < 50% predicted) or currently on home oxygen

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04788888
Contact: Nadia Bouhdi | +32 479 94 10 37 | nadia.bouhdi@abbott.com | |
Contact: Hai-Chien Kuo | +1 408-221-6366 | hai-chien.kuo@abbott.com |

Principal Investigator: | Azeem Latib, MD | Montefiore Health System | |
Principal Investigator: | Michael Reardon, MD | The Methodist Hospital Research Institute |
Responsible Party: | Abbott Medical Devices |
ClinicalTrials.gov Identifier: | NCT04788888 |
Other Study ID Numbers: |
ABT-CIP-10342 |
First Posted: | March 9, 2021 Key Record Dates |
Last Update Posted: | January 9, 2023 |
Last Verified: | January 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | Yes |
Device Product Not Approved or Cleared by U.S. FDA: | Yes |
Product Manufactured in and Exported from the U.S.: | Yes |
Aortic Valve Stenosis Aortic Valve Disease Heart Valve Diseases |
Heart Diseases Cardiovascular Diseases Ventricular Outflow Obstruction |