ClinicalTrials.gg
Not yet recruitingNCT07919366TRI-SUCCESSUpdated Nov 5, 2026

TRI-SUCCESS - Tricuspid Regurgitation Study of the Unica™ Cross-Caval System for the Evaluation of Efficacy and Safety in Significant TR Subjects

An interventional study of Innoventric Unica™ System in Tricuspid Regurgitation and Tricuspid Regurgitation Functional, sponsored by Innoventric LTD. Not yet recruiting. Open to participants aged 18 Years to 85 Years. Per ClinicalTrials.gov, last updated 2026-11-05.

Sponsored by Innoventric LTD · Not applicable, Interventional, and Treatment

Updated Nov 5, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
510
Allocation
Randomized
Ages
18 Years to 85 Years
Sex
All
01

Study summary

Prospective, multi-center, randomized, open-label, controlled pivotal study to assess the safety and effectiveness of the Innoventric Unica™ heterotopic cross-caval stent with OMT compared to OMT alone in the treatment of severe or greater TR.

Read the detailed description

Prospective, multi-center, randomized, open-label, controlled pivotal study to assess the safety and effectiveness of the Innoventric Unica™ heterotopic cross-caval stent with OMT compared to OMT alone in the treatment of severe or greater TR. A maximum of 510 subjects, may be enrolled at up to 70 sites in the US, Canada, Europe, and Israel. All enrolled study subjects will be assessed at baseline, after 1 month, 3 months, 6 months, and yearly thereafter through 5 years. The device cohort subjects will also be assessed during the procedure and at discharge.

02

Conditions studied

  • Tricuspid Regurgitation
  • Tricuspid Regurgitation Functional

Keywords

  • Tricuspid valve
  • Transcatheter
  • Tricuspid Regurgitation
  • Tricuspid valve insufficiency
03

In context

Tricuspid Valve Insufficiency

226 studies on the registry are indexed under Tricuspid Valve Insufficiency; 109 are open to participants now.

This study's planned enrollment of 510 is above the median of 60 across 128 interventional studies indexed under Tricuspid Valve Insufficiency.

Browse Tricuspid Valve Insufficiency studies →

Lead sponsor

Innoventric LTD is the lead sponsor of 3 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 ≤ Age ≤ 85
  • Clinically symptomatic severe or greater tricuspid regurgitation
  • Symptomatic ( functional classification of II-IVa), despite OMT.
  • The subject is deemed unsuitable for tricuspid valve surgery, tricuspid transcatheter edge-to-edge repair (t-TEER), or orthotopic transcatheter tricuspid valve replacement (TTVR), as determined by a multidisciplinary Heart Team.
  • Peak central venous pressure or peak RA pressure of ≥ 12mmHg
  • HF hospitalizations ≥ 1 in the past year

Exclusion criteria

Exclusion Criteria:

  • Echocardiographic parameters (Any of the following):

    1. \< 30%
    2. Severe RV dysfunction
  • Anatomical suitability according to CT scan
  • Systolic Pulmonary Artery Pressure (measured per RHC) > 65mmHg or PVR >4 WU
  • Moderate or greater tricuspid or mitral valve stenosis, or greater than moderate mitral valve regurgitation or greater than moderate aortic valve stenosis/regurgitation
  • Moderate mitral valve regurgitation combined with moderate aortic valve stenosis/regurgitation
  • A Patent Foramen Ovale (PFO) or an Atrial Septal Defect (ASD) that cannot be closed.
  • A Ventricular Septal Defect (VSD)
  • 6MWD \< 100m
  • Any therapeutic invasive cardiac procedure (excluding PFO/ASD closure and pericardiocentesis for pericardial effusion drainage) in the 30 days prior to enrollment
  • Kidney dysfunction with estimated (eGFR) \< 30 ml/min/1.73 m2 within 60 days, or the subject is on chronic dialysis
  • Liver cirrhosis or moderate or severe liver disease (Child-Turcotte Pugh class C)
  • Chronic anemia ( \< 8.5 g/dL) within 14 days
  • Thrombocytopenia ( count\< 80,000/mm3) or thrombocytosis (platelet count > 750,000/mm3) within 14 days
  • Active or history of that, is likely to result in cancer related morbidity or mortality, require systemic anti-cancer therapy during the study follow-up period, or otherwise confound assessment of study endpoints.
  • Current or history of drug or alcohol abuse within the last 3 years.
  • Subject's \< 12 months
  • Presence of any prosthetic device in the SVC or IVC or RA that prevents proper device implantation
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
510 participants (estimated)

Study arms

  • Experimental
    Device

    Unica™ System and OMT

    Device: Innoventric Unica™ System

  • No intervention
    Control

    OMT

Interventions

  • DeviceInnoventric Unica™ System

    The Unica™ heterotopic cross-caval transcatheter tricuspid valve replacement in conjunction with Optimal Medical Therapy

06

What researchers measure

Primary outcomes

  1. Rate of Major Adverse Events (MAE)

    Proportion of subjects experiencing a Major Adverse Event (MAE) in the device arm.

    Time frame: 30 Days

  2. Reduction of at least one grade in Caval Reflux

    Reduction of at least one grade in Caval Reflux assessed by the imaging core laboratory. The caval reflux will be assessed using the 3-grade scale * 1- no reflux, reflux extending for less than 1 cm below the diaphragm (RA-IVC junction) * 2- reflux extending for less than 3 cm from the diaphragm (RA-IVC junction) * 3- reflux of 3 cm or more from the diaphragm (RA-IVC junction).

    Time frame: 6 months

  3. Hierarchical Composite Endpoint including: improvement in KCCQ overall score, improvement in NYHA classification, improvement in 6MWD

    Hierarchical Composite Endpoint analyzed using win-ratio - comparison of the number of wins between device and control arms

    Time frame: 6 months

  4. Hierarchical Composite Endpoint including: all-cause mortality, RVAD implant or heart transplant, HF hospitalizations (total number), TR (re-)intervention, change in KCCQ-12 overall score, change in NYHA classification, change in 6MWD

    Hierarchical Composite Endpoint analyzed using win-ratio - comparison of the number of wins between device and control arms

    Time frame: 1 Year

Secondary outcomes

  1. All-cause mortality

    Time frame: 1-year

  2. Cardiovascular mortality

    Time frame: 1-year

  3. Rate of HF hospitalizations

    Time frame: 1-year

  4. Rate of HF hospitalizations combined with all-cause mortality

    Time frame: 1-year

  5. Rate of HF hospitalizations combined with cardiovascular mortality

    Time frame: 1-year

  6. Hierarchical composite endpoint consisting of all-cause death, RVAD implant or heart transplant, HF hospitalizations (total number), and TR (re-) intervention

    Time frame: 1-year

  7. RVAD implant or heart transplant

    Time frame: 1-year

  8. Tricuspid valve (re-)intervention

    Time to tricuspid valve (re-)intervention

    Time frame: 1-year

  9. Reduction in Caval Reflux assessed by the imaging core laboratory

    Reduction of at least one grade in Caval Reflux assessed by the imaging core laboratory. The caval reflux will be assessed using the 3-grade scale * 1- no reflux, reflux extending for less than 1 cm below the diaphragm (RA-IVC junction) * 2- reflux extending for less than 3 cm from the diaphragm (RA-IVC junction) * 3- reflux of 3 cm or more from the diaphragm (RA-IVC junction).

    Time frame: treatment, 30 days, 6 months, 1 year, 2 years, and 3 years

  10. Reduction in CVP v-wave

    Reduction in CVP v-wave measured by IVC catheterization

    Time frame: Treatment

  11. Rate of Major Adverse Events (MAE)

    Proportion of subjects experiencing a Major Adverse Event (MAE)

    Time frame: 1 year, 2 years, 3 years, 4 years, 5 years

  12. Change in NYHA functional from baseline

    Time frame: 6 months, 1 year, and 2 years

  13. Change in leg edema grade from baseline

    Time frame: 6 months, 1 year, and 2 years

  14. Change in quality of life (QOL) as assessed by KCCQ-12 overall score from baseline

    Time frame: 6 months, 1 year, and 2 years

  15. Change in 6MWD from baseline

    Time frame: 6 months, 1 year, and 2 years

07

Study locations

No study locations are listed for this record.

08

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Nov 5, 2026
Show all 1 update
  1. Nov 5, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07919366
Lead sponsor
Innoventric LTD
Collaborators
Innoventric Inc.
Responsible party
Sponsor
First posted
Nov 5, 2026
Start date
Jan 1, 2027 (estimated)
Primary completion
Jan 1, 2031 (estimated)
Completion
Jan 1, 2035 (estimated)
Last update
Nov 5, 2026

Study contacts

Chen Lereya, VP of Clinical Affairs
Contact
chen@innoventric.com
+972-528981783
Anastasya Yavich, Clinical Trials Manager
Contact
anastasyaya@innoventric.com
+972-547600955

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Nov 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion