Mitral Valve Regurgitation (Degenerative or Functional)TWIST-PILOT-ITNCT05010746
TVMR With the Innovalve System Trial - Pilot Study in Italy
A study testing Innovalve TMVR system in people with Mitral Valve Regurgitation (Degenerative or Functional), run by Edwards Lifesciences at 1 site in Italy.
Trial summary
Study to evaluate the safety and performance of the Innovalve mitral valve replacement system Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Mitral Valve Regurgitation (Degenerative or Functional)
- What is being tested?
- Innovalve TMVR system
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 4 participants
- Where
- 1 siteItaly
- Study dates
- 24 Jan 2023to 4 Oct 2029
- Phase
- Interventional
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Clinically significant, symptomatic mitral regurgitation
- High risk for open-heart surgery
- Meets anatomical criteria
Who cannot join
- Unsuitable anatomy
- Patient is inoperable
- EF <30%
Trial locations and contacts
1 site in 1 country.
About this study
Study to evaluate the safety and performance of the Innovalve mitral valve replacement system
- Being tested
- Innovalve TMVR system
- Medical subject headings
- Mitral Valve Insufficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Innovalve TMVR systemDevice
Innovalve TMVR system
| Study group | Role | What they receive |
|---|---|---|
| MV replacement with Innovalve MR system | Experimental | MV replacement with Innovalve MR system Receives: Device: Innovalve TMVR system |
What is being measured
The primary outcome is the main question the study is designed to answer.
Absence of implant or delivery related serious adverse events at 30 days
Absence of implant or delivery related serious adverse events at 30 days
Measured: 30 days
Secondary outcomes (11)
Technical Success
All of the following must be present: i. Absence of procedural mortality; and ii. Successful access, delivery, and retrieval of the device delivery system; and iii. Successful deployment and correct positioning of the first intended device; and iv. Freedom from emergency surgery or reintervention related to the device or access procedure.
Measured: Procedure
Procedural Success
All of the following must be present:
- Deployment of the device
II. Absence of major device- or procedure-related SAEs, including:
- Death
- Stroke
- Life-threatening bleeding (Mitral Valve Academic Research Consortium [MVARC] definition)
- Major vascular complications requiring surgery to repair
- Major cardiac structural complications requiring surgery to repair
- Stage 2 or 3 acute kidney injury (including new dialysis)
- Myocardial infarction or coronary ischemia requiring percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG)
- Unexpected cardiogenic shock requiring intensive care unit (ICU) admission and treatments such as ultrafiltration or hemodynamic assist devices, including intra-aortic balloon pumps or left ventricular (LV) or biventricular assist device, or prolonged intubation for > 48 hours.
- Any valve-related dysfunction, migration, thrombosis, or other complication requiring surgery or repeat intervention
Measured: 30 days
Device Success
All of the following must be present:
- Absence of procedural mortality or stroke; and
- Proper placement and positioning of the device; and
- Freedom from unplanned surgical or interventional procedures related to the device or access procedure; and
- Continued intended safety and performance of the device, including:
- No evidence of major structural or functional failure
- No specific, major device-related technical failure issues and complications
- Reduction of MR to either optimal or acceptable levels* without significant mitral stenosis (i.e., post-procedure effective orifice area [EROA] ≥ 1.5 cm2 with transmitral mean gradient < 5 mmHg), no greater than mild (1+) paravalvular leak (PVL), and no hemolysis
Measured: 30 days, 3, 6, 12 months and annually up to 5 years
Patient Success
All of the following must be present:
- Deployment of the device
- Patient returned to the pre-procedural setting; and
- No rehospitalizations or reinterventions for the underlying condition (e.g., MR, heart failure); and
- Improvement from baseline in symptoms (e.g., New York Heart Association [NYHA] Class improvement by ≥ 1 class); and
- Improvement from baseline in functional status (e.g., 6-minute walk test/distance [6MWT/D] improvement by ≥ 50 m); and
- Improvement from baseline in quality-of-life (e.g., Kansas City Cardiomyopathy Questionnaire [KCCQ-12] improvement by ≥ 10 points)
Measured: 1 year
Change in NYHA Class
New York Heart Association (NYHA) functional classification of heart failure is based on how much a patient is limited during physical activity. The rating ranges from Class I-IV. Class I = no limitations of physical activity; Class II = slight limitations of physical activity, ordinary physical activity results in fatigue, palpitation, shortness of breath; Class III = marked limitations of physical activity, less than ordinary activity causes fatigue, palpitation, or shortness of breath; Class IV = unable to carry on any physical activity without discomfort, symptoms of heart failure at rest.
Measured: 30 days, 3, 6, 12 months and annually up to 5 years
Increase in 6MWD
Measured: from baseline to 30 days, 3, 6, 12 months and annually up to 5 years
Quality of life change (KCCQ-12)
The Kansas City Cardiomyopathy Questionnaire (KCCQ) is a 23-item, self-administered instrument that quantifies physical function, symptoms (frequency, severity and recent change), social function, self-efficacy and knowledge, and quality of life. An overall summary score can be derived from the physical function, symptom (frequency and severity), social function, and quality of life domains. Scores are transformed to a range of 0-100, in which higher scores reflect better health status.
Measured: from baseline to 30 days, 3, 6, 12 months and annually up to 5 years
Reduction in MR grade
Measured: from baseline to 30 days, 3, 6, 12 months and annually up to 5 years
Atrial septal defects requiring closure
Measured: 30 days, 3, 6, 12 months and annually up to 5 years
Change in Montreal Cognitive Assessment (MoCa)
The Montreal Cognitive Assessment is a 30-point test assessing multiple cognitive domains, including short-term memory recall, visuospatial abilities, executive function, attention, concentration, working memory, language, and orientation to time and place. Scores are on a 30-point scale; scores 26 and above indicate normal cognitive function. Lower scores may indicate mild cognitive impairment (scores 19-25), moderate impairment (scores 10-18), or severe impairment (scores less than 10).
Measured: Discharge and 30 days
Composite of MVARC criteria
Number of patients who experience composite endpoint events: death due to any cause, repeat hospitalization due to heart failure, disabling stroke, myocardial infarction, life-threatening major bleeding, acute kidney injury, or specific device-related major technical failure issues and complications.
- Repeat hospitalization for heart failure c. Disabling stroke d. Myocardial infarction e. Life-threatening major bleeding f. Acute kidney injury g. Specific device-related major technical failure issues and complications
Measured: 30 days, 3, 6, 12 months and annually up to 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Aug 2021
- Study start24 Jan 2023
- Primary completion4 May 2024
- Study completion4 Oct 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Mitral Valve Regurgitation (Degenerative or Functional)Studies of the same condition, open and under way.
- More trials run by Edwards LifesciencesThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 4 participants (actual)
Sponsor and investigators
- Lead sponsor
- Edwards Lifesciences
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Antonio Colombo, Prof, Principal investigator, Humanitas IRCCS
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05010746
- Sponsor's protocol ID
- INVL20-01-IT
- Acronym
- TWIST-PILOT-IT
- Status last verified
- Jun 2025
- First submitted
- 11 Aug 2021
- Last updated
- 26 Jun 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No