Clinical Trial to Evaluate the Safety and Effectiveness of Using the Tendyne Transcatheter Mitral Valve System for the Treatment of Symptomatic Mitral Regurgitation (SUMMIT)
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ClinicalTrials.gov Identifier: NCT03433274 |
Recruitment Status :
Recruiting
First Posted : February 14, 2018
Last Update Posted : March 23, 2023
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Prospective, controlled, multicenter clinical investigation with four trial cohorts: Randomized, Non-repairable, Severe Mitral Annular Calcification (MAC) and Severe Mitral Annular Calcification Continued Access Protocol (MAC CAP). Subjects in the Randomized cohort will be randomized in a 1:1 ratio to the trial device or to the MitraClip system. Subjects in the Non-repairable, Severe MAC, and Severe MAC CAP cohorts will receive the trial device.
The objective of the Clinical Trial to Evaluate the Safety and Effectiveness of Using the Tendyne Transcatheter Mitral Valve System for the Treatment of Symptomatic Mitral Regurgitation (SUMMIT) is to evaluate the safety and effectiveness of the Tendyne Transcatheter Mitral Valve System for the treatment of patients with symptomatic, moderate-to-severe or severe mitral regurgitation or for patients with symptomatic mitral valve disease due to severe mitral annular calcification.
This randomized controlled trial will provide the opportunity to evaluate the safety and clinical benefits of the Tendyne Transcatheter Mitral Valve System compared to the MitraClip System in patients with symptomatic, moderate-to-severe or severe mitral regurgitation, within approved MitraClip indications. In addition, the safety and effectiveness of the Tendyne Transcatheter Mitral Valve System will be evaluated in patients with severe mitral annular calcification who are at prohibitive risk for mitral valve surgery. Patients who are not suitable for mitral valve surgery for reasons other than severe mitral annular calcification and are also not suitable for transcatheter repair with MitraClip, will be enrolled in the Non-repairable cohort.
Subjects will be seen at screening, pre- and post-procedure, discharge, 30 days, 3 months, 6 months, and annually through 5 years.
Condition or disease | Intervention/treatment | Phase |
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Mitral Regurgitation Mitral Insufficiency Mitral Valve Insufficiency Cardiovascular Diseases Valve Disease, Heart Heart Valve Diseases Functional Mitral Regurgitation Degenerative Mitral Valve Disease | Device: Tendyne Mitral Valve System Device: MitraClip System | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 958 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Clinical Trial to Evaluate the Safety and Effectiveness of Using the Tendyne Transcatheter Mitral Valve System for the Treatment of Symptomatic Mitral Regurgitation |
Actual Study Start Date : | June 15, 2018 |
Estimated Primary Completion Date : | June 2023 |
Estimated Study Completion Date : | June 2027 |
Arm | Intervention/treatment |
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Experimental: Randomized Cohort - Treatment Group
Treatment of mitral regurgitation with the Tendyne Transcatheter Mitral Valve System
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Device: Tendyne Mitral Valve System
Mitral valve replacement |
Active Comparator: Randomized Cohort - Control Group
Treatment of mitral regurgitation within commercially approved MitraClip system indications
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Device: MitraClip System
Percutaneous mitral valve repair using the MitraClip system. |
Experimental: Non-repairable Cohort
Treatment of mitral regurgitation with the Tendyne Transcatheter Mitral Valve System
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Device: Tendyne Mitral Valve System
Mitral valve replacement |
Experimental: Severe Mitral Annular Calcification (MAC) Cohort
Treatment of mitral regurgitation and mitral annular calcification with the Tendyne Transcatheter Mitral Valve System
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Device: Tendyne Mitral Valve System
Mitral valve replacement |
Experimental: Severe Mitral Annular Calcification Continued Access Protocol (MAC CAP) Cohort
Treatment of mitral regurgitation and mitral annular calcification with the Tendyne Transcatheter Mitral Valve System after the completion of enrollment in the Severe MAC Cohort
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Device: Tendyne Mitral Valve System
Mitral valve replacement |
- Randomized Cohort [ Time Frame: 1 year ]Survival free of heart failure hospitalization at 12 months post index procedure
- Non-repairable Cohort [ Time Frame: 1 year ]Survival free of heart failure hospitalization at 12 months post index procedure
- Severe Mitral Annular Calcification (MAC) Cohort [ Time Frame: 1 year ]Survival free of heart failure hospitalization at 12 months post index procedure
- Severe MAC Continued Access Protocol (MAC CAP) Cohort [ Time Frame: 1 year ]Survival free of heart failure hospitalization at 12 months post index procedure
- Change from baseline in distance walked, as measured by the 6 Minute Walk Test (6MWT) [ Time Frame: 1 year ]
- Change from baseline in quality of life, as measured by the Kansas City Cardiomyopathy Questionnaire (KCCQ) [ Time Frame: 1 year ]
- Change from baseline in health outcomes, as measured by the EQ-5D [ Time Frame: 1 year ]
- • Change from baseline in health outcomes, as measured by the 12-item Short Form Health Survey (SF-12) [ Time Frame: 1 year ]
- Change from baseline in New York Heart Association Classification [ Time Frame: 1 year ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Symptomatic, moderate-to-severe or severe mitral regurgitation, or severe mitral annular calcification (MAC)
- NYHA Functional Classification ≥ II (if Class IV, patient must be ambulatory)
- The local site heart team determines that the subject has been adequately treated per applicable standards
- Not a member of a vulnerable population
Exclusion Criteria:
- Mitral valvular vegetation or mass
- Left ventricular ejection fraction < 25%
- Left ventricular end diastolic diameter > 7.0 cm
- Prior surgical or interventional treatment of mitral valve involving implantation of prosthetic material
- Aortic valve disease requiring surgery or transcatheter intervention
- Severe tricuspid regurgitation or any tricuspid valve disease requiring surgery or transcatheter intervention
- Any planned surgical / interventional procedure within 60 day prior to or following subject randomization
- Subject undergoing hemodialysis due to chronic renal failure
- Mitral pathoanatomy and left ventricular outflow tract anatomy deemed not suitable for Trial device implantation
- Subjects with non-cardiac comorbidities that are likely to result in a life expectancy of less than 12 months

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): NCT03433274
Contact: Kayla Dellefratte | +1 (669)214-9748 | SUMMIT.Trial@abbott.com | |
Contact: Leslie Ornelas | +1 (602)692-5047 | leslie.ornelas@abbott.com |

Principal Investigator: | Gorav Ailawadi, MD | University of Michigan | |
Principal Investigator: | Jason Rogers, MD | University of California, Davis | |
Study Director: | Ryan Palmer, PhD | Abbott Structural Heart |
Responsible Party: | Abbott Medical Devices |
ClinicalTrials.gov Identifier: | NCT03433274 |
Other Study ID Numbers: |
CS0004-P |
First Posted: | February 14, 2018 Key Record Dates |
Last Update Posted: | March 23, 2023 |
Last Verified: | March 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 |
Cardiovascular Diseases Mitral Valve Insufficiency Heart Valve Diseases Heart Diseases |