Tricuspid RegurgitationCLASP II TRNCT04097145
Edwards PASCAL Transcatheter Valve Repair System Pivotal Clinical Trial
A study testing Edwards PASCAL System and Optimal Medical Therapy in people with Tricuspid Regurgitation and Tricuspid Valve Insufficiency, run by Edwards Lifesciences at 79 sites in 2 countries.
Trial summary
To establish the safety and effectiveness of the Edwards PASCAL Transcatheter Repair System in patients with symptomatic severe tricuspid regurgitation who have been determined to be at an intermediate or greater estimated risk of mortality with tricuspid valve surgery by the cardiac surgeon with concurrence by the… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Tricuspid Regurgitation, Tricuspid Valve Insufficiency, Tricuspid Valve Disease
- What is being tested?
- Edwards PASCAL System and Optimal Medical Therapy
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,270 participants
- Where
- 79 sitesin 2 countries
- Study dates
- 11 Dec 2019to 31 Dec 2031
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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
- Eighteen (18) years of age or older
- Despite medical therapy, per the local Heart Team, patient has signs of TR, symptoms from TR, or prior heart failure hospitalization from TR.
- Severe or greater tricuspid regurgitation
- New York Heart Association (NYHA) Class II-IVa or heart failure hospitalization in the prior 12 months
- Patient is at an intermediate or greater estimated risk of mortality with tricuspid valve surgery as determined by the cardiac surgeon with concurrence by the local Heart Team
- Patient is able and willing to give informed consent, follow protocol procedures, and comply with follow-up visit requirements
Who cannot join
- Tricuspid valve anatomy not evaluable by TTE or TEE
- Tricuspid valve anatomy precludes proper device deployment and function
- Patient with refractory heart failure requiring, advanced intervention (i.e. patient has or will need left ventricular assist device, or transplantation) (ACC/AHA Stage D heart failure)
- Presence of trans-tricuspid pacemaker or defibrillator leads which meet one of the following:
- Would prevent proper TR reduction due to interaction of the lead with the leaflets
- Were implanted in the RV within the last 90 days prior to the point of enrollment
Show all 30Show fewer
- Primary non-degenerative tricuspid disease
- Previous tricuspid valve repair or replacement that would interfere with placement of PASCAL
- Clinically significant, untreated coronary artery disease requiring revascularization, unstable angina, evidence of acute coronary syndrome, recent myocardial infarction
- Significant intra-cardiac mass, thrombus, or vegetation per echo core lab assessment
- Deep vein thrombosis (DVT) or pulmonary embolism (PE) in the last 90 days
- Recent Stroke
- Active gastrointestinal (GI) bleeding
- Presence of infiltrative cardiomyopathy or valvulopathy (including carcinoid, amyloidosis, sarcoidosis, hemochromatosis) or significant congenital heart disease, including but not limited to atrial septal defect, RV dysplasia, and arrhythmogenic RV
- Need for emergent or urgent surgery for any reason, any planned cardiac surgery within the next 12 months (365 days), or any planned percutaneous cardiac procedure within the next 90 days
- Any of the following cardiovascular procedures:
- Percutaneous coronary, intracardiac, or endovascular intervention within the last 30 days prior to the point of enrollment
- Carotid surgery within 30 days prior to the point of enrollment
- Direct current cardioversion within the last 30 days prior to the point of enrollment
- Leadless RV pacemaker implant within the last 30 days prior to the point of enrollment
- Cardiac surgery within 90 days prior to the point of enrollment
- Severe aortic, mitral and/or pulmonic valve stenosis and/or regurgitation
- Known history of untreated severe symptomatic carotid stenosis or asymptomatic carotid stenosis
- Active endocarditis within the last 90 days or infection requiring antibiotic therapy within the last 14 days
- Patient is oxygen-dependent or requires continuous home oxygen
- Pregnant, breastfeeding, or planning pregnancy within the next 12 months (365 days)
- Concurrent medical condition with a life expectancy of less than 12 months in the judgment of the Investigator
- Patient is currently participating in another investigational biologic, drug, or device clinical study
- Patient has other medical, social, or psychological conditions that preclude appropriate consent and follow-up, or the patient is under guardianship
- Any patient considered to be vulnerable
Trial locations and contacts
79 sites in 2 countries. Contact the study team or a site near you to ask about taking part.
79 sites in 2 countries
United States73 sites, 45 recruiting
- Recruiting
University of Michigan
Ann Arbor, Michigan, 48109
Stanley Chetcuti, MD
- Recruiting
Emory University Hospital Midtown / Emory University - St. Joseph's Hospital
Atlanta, Georgia, 30308
Adam Greenbaum, MD
- Active, not recruiting
Piedmont Healthcare, Inc.
Atlanta, Georgia, 30309
- Recruiting
Johns Hopkins
Baltimore, Maryland, 21287
Rani Hasan, MD
- Recruiting
Massachusetts General Hospital
Boston, Massachusetts, 02114
Nilay Patel, MD
Ignacio Inglessis, MD
- Recruiting
State University of New York at Buffalo
Buffalo, New York, 14203
Vijay Iyer, MD, PhD
- Recruiting
Cooper Health Systems
Camden, New Jersey, 09103
Sajjad Sabir, MD
- Recruiting
University of North Carolina
Chapel Hill, North Carolina, 27517
John Vavalle, MD
- Active, not recruiting
Medical University of South Carolina
Charleston, South Carolina, 29245
- Recruiting
University of Virginia Health System
Charlottesville, Virginia, 22908
John Saxon, MD
- Active, not recruiting
Erlanger Health System
Chattanooga, Tennessee, 37403
- Recruiting
Northwestern University
Chicago, Illinois, 60611
Charles Davidson, MD
- Recruiting
The Christ Hospital
Cincinnati, Ohio, 45219
Santiago Garcia, MD
- Active, not recruiting
TriHealth-Bethesda North Hospital
Cincinnati, Ohio, 45242
- Recruiting
The Ohio State University
Columbus, Ohio, 43210
Konstantinos Boudoulas, MD
Scott Lilly, MD
- Recruiting
St. Joseph Hospital
Denver, Colorado, 80218
Jake Chanin, MD
- Recruiting
Henry Ford Hospital
Detroit, Michigan, 48202
Brian O' Neill, MD
- Active, not recruiting
Sanford Medical Center Fargo
Fargo, North Dakota, 58104
- Recruiting
The Cardiac and Vascular Institute Research Foundation
Gainesville, Florida, 32605
Charles Klodell, MD
Ilie Barb, MD
- Recruiting
Penn State Hershey
Hershey, Pennsylvania, 17033
Mark Kozak, MD
- Recruiting
HCA Houston Healthcare Medical Center
Houston, Texas, 77004
Pranav Loyalka, MD
- Recruiting
Baylor College of Medicine St. Luke's Medical Center
Houston, Texas, 77030
Guilherme Silva, MD
- Recruiting
The University of Texas Health Science Center at Houston
Houston, Texas, 77030
Abhijeet Dhoble, MD
Richard Smalling, MD
- Recruiting
UTHealth/Memorial Hermann Hospital
Houston, Texas, 77030
Biswajit Kar, MD
- Recruiting
Ascension St. Vincent Heart Center Cardiovascular Research Institute
Indianapolis, Indiana, 46290
James Hermiller, MD
- Active, not recruiting
University of Iowa Hospitals & Clinics
Iowa City, Iowa, 52242
- Recruiting
University of California, Irvine
Irvine, California, 92868
Antonio Frangieh, MD
- Recruiting
Saint Luke's Hospital of Kansas City
Kansas City, Missouri, 64111
Adnan Chhatriwalla, MD
- Active, not recruiting
SCPMG - Kaiser San Diego
La Jolla, California, 92037
- Recruiting
Dartmouth-Hitchcock Medical Center
Lebanon, New Hampshire, 03756
Michael Young, MD
- Active, not recruiting
Cedars Sinai Medical Center
Los Angeles, California, 90048
- Active, not recruiting
UCLA Medical Center
Los Angeles, California, 90095
- Active, not recruiting
Medical Center of the Rockies
Loveland, Colorado, 80538
- Active, not recruiting
Fairview Health Services
Maplewood, Minnesota, 55109
- Recruiting
Mount Sinai Medical Center
Miami Beach, Florida, 33140
Nirat Beohar, MD
Steve Xydas, MD
- Recruiting
Medical College of Wisconsin
Milwaukee, Wisconsin, 53226
Jeremiah Depta, MD
- Active, not recruiting
Providence St. Patrick Hospital
Missoula, Montana, 59802
- Recruiting
Morristown Medical Center
Morristown, New Jersey, 07962
Gennaro Giustino, MD
- Active, not recruiting
Intermountain Medical Center
Murray, Utah, 84107
- Recruiting
NCH Healthcare System
Naples, Florida, 34102
Robert Cubeddu, MD
- Active, not recruiting
Vanderbilt University Medical Center
Nashville, Tennessee, 37212
- Recruiting
Rutgers Robert Wood Johnson Medical School
New Brunswick, New Jersey, 08901
Mark Russo, MD
- Active, not recruiting
Ochsner Medical Center
New Orleans, Louisiana, 70121
- Recruiting
Columbia University Irving Medical Center/NYPH
New York, New York, 10032
Michael Brener, MD
- Recruiting
Weill Cornell Medicine
New York, New York, 10065
Shmuel Chen, MD
- Recruiting
Lenox Hill Hospital, Northwell Health /Northshore University Hospital Manhasset
New York, New York, 10075
Mei Chau, MD
Bruce Rutkin, MD
- Active, not recruiting
Integris Baptist Medical Center
Oklahoma City, Oklahoma, 73112
- Recruiting
Oklahoma Cardiovascular Research Group
Oklahoma City, Oklahoma, 73120
Mohammad Ghani, MD
- Active, not recruiting
Pennsylvania Presbyterian Medical Center / Hospital of the University of Pennsylvania
Philadelphia, Pennsylvania, 19104
- Active, not recruiting
Banner University Medical Center Phoenix
Phoenix, Arizona, 85006
- Recruiting
Baylor Scott & White - The Heart Hospital - Plano
Plano, Texas, 75093
Molly Szerlip, MD
- Recruiting
Oregon Health & Science University
Portland, Oregon, 97239
Firas Zahr, MD
Scott Chadderdon, MD
- Active, not recruiting
Virginia Commonwealth University
Richmond, Virginia, 23298
- Recruiting
Carilion Medical Center
Roanoke, Virginia, 24014
Jason Foerst, MD
- Recruiting
Mayo Clinic
Rochester, Minnesota, 55905
Mackram Eleid, MD
- Active, not recruiting
Rochester General Hospital
Rochester, New York, 14621
- Recruiting
St. Francis Hospital
Roslyn, New York, 11576
George A. Petrossian, MD
Newell B. Robinson, MD
- Active, not recruiting
William Beaumont Hospital - Royal Oak
Royal Oak, Michigan, 48073
- Active, not recruiting
St. Mary's of Ascension Research
Saginaw, Michigan, 48601
- Active, not recruiting
Kaiser Permanente San Francisco
San Francisco, California, 94118
- Recruiting
University of California, San Francisco
San Francisco, California, 94143
Sammy Elmariah, MD
- Recruiting
Sarasota Memorial Health Care System
Sarasota, Florida, 34239
Ricardo A. Yaryura, MD
- Recruiting
Virginia Mason Medical Center
Seattle, Washington, 98101
Ming Zhang, MD
- Active, not recruiting
Swedish Medical Center
Seattle, Washington, 98122
- Active, not recruiting
Washington University School of Medicine
St Louis, Missouri, 63110
- Recruiting
St. George Regional Hospital
St. George, Utah, 84790
Blake Gardner, MD
- Active, not recruiting
Stanford University
Stanford, California, 94305
- Active, not recruiting
Tallahassee Research Institute
Tallahassee, Florida, 32308
- Recruiting
Montefiore Medical Center / Arts Pavilion / Hutchinson Metro Center Clinic / Weiler Hospital / Moses Hospital
The Bronx, New York, 10467
Mohamed A. Latib, MD
- Active, not recruiting
Tucson Medical Center Healthcare
Tucson, Arizona, 85712
- Recruiting
Oklahoma Heart Institute at Hillcrest Medical Center
Tulsa, Oklahoma, 74104
Kamran Muhammad, MD
- Recruiting
Pinnacle Health Cardiovascular Institute/UPMC Pinnacle
Wormleysburg, Pennsylvania, 17043
Mubashir Mumtaz, MD
- Recruiting
Lankenau Heart Institute
Wynnewood, Pennsylvania, 19096
William Gray, MD
Canada6 sites
- Active, not recruiting
Hamilton Health Services
Hamilton, Ontario, L8L 2X2
- Active, not recruiting
University of Ottawa Heart Institute
Ottawa, Ontario, K1Y 4Q7
- Active, not recruiting
Institut universitaire de cardiologie et de pneumologie de Québec - Université Laval
Québec, Quebec, G1V 4G5
- Active, not recruiting
Sunnybrook Health Sciences Centre
Toronto, Ontario, M4N 3M5
- Active, not recruiting
St. Michael's Hospital
Toronto, Ontario, M5B 1W8
- Active, not recruiting
St. Paul's Hospital
Vancouver, British Columbia, V6Z 1Y6
About this study
Official title: A Prospective, Multicenter, Randomized, Controlled Pivotal Trial to Evaluate the Safety and Effectiveness of Transcatheter Tricuspid Valve Repair With the Edwards PASCAL Transcatheter Valve Repair System and Optimal Medical Therapy (OMT) Compared to OMT Alone in Patients With Tricuspid Regurgitation
To establish the safety and effectiveness of the Edwards PASCAL Transcatheter Repair System in patients with symptomatic severe tricuspid regurgitation who have been determined to be at an intermediate or greater estimated risk of mortality with tricuspid valve surgery by the cardiac surgeon with concurrence by the local Heart Team
Read the detailed description
A Prospective, multicenter, randomized, controlled pivotal trial to evaluate the safety and effectiveness of transcatheter tricuspid valve repair with the Edwards PASCAL Transcatheter Valve Repair System and optimal medical therapy (OMT) compared to OMT alone in patients with tricuspid regurgitation. Patients will be seen for follow-up visits at discharge, 30 days, 3 months, 6 months, and annually through 5 years.
- Being tested
- Edwards PASCAL System, Optimal Medical Therapy
- Medical subject headings
- Tricuspid Valve Insufficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Edwards PASCAL SystemDevice
Also called Transcatheter tricuspid valve repair (TTVr)
Transcatheter tricuspid valve repair with the Edwards PASCAL System in patients on optimal medical therapy
Optimal Medical TherapyDrug
Optimal Medical Therapy alone in patients with tricuspid regurgitation
Edwards PASCAL SystemDevice
Transcatheter tricuspid valve repair with the Edwards PASCAL System in conjunction with OMT
Edwards PASCAL SystemDevice
Transcatheter tricuspid valve repair with the Edwards PASCAL system in patients on optimal medical therapy (OMT) with tricuspid regurgitation
| Study group | Role | What they receive |
|---|---|---|
| Edwards PASCAL System & OMT | Experimental | Transcatheter tricuspid valve repair with the Edwards PASCAL system in patients on optimal medical therapy (OMT) with tricuspid regurgitation Receives: Device: Edwards PASCAL System |
| Optimal Medical Therapy (OMT) | Active comparator | Optimal medical therapy (OMT) alone in patients with tricuspid regurgitation Receives: Drug: Optimal Medical Therapy |
| Single-Arm Registry | Experimental | Transcatheter tricuspid valve repair with the Edwards PASCAL System in conjunction with optimal medical therapy (OMT) in patients with tricuspid regurgitation who are not eligible for randomization Receives: Device: Edwards PASCAL System |
| Continued Access Study | Experimental | Transcatheter tricuspid valve repair with the Edwards PASCAL system in patients on optimal medical therapy (OMT) with tricuspid regurgitation Receives: Device: Edwards PASCAL System |
What is being measured
The primary outcome is the main question the study is designed to answer.
Composite endpoint including all-cause mortality, RVAD implantation or heart transplant, tricuspid valve intervention, heart failure hospitalizations, and Quality of Life improvement (measured by KCCQ score)
Comparison of number of participants with composite endpoint events between experimental and active comparator arms
Measured: 6 months
Secondary outcomes (15)
1 Grade Reduction in TR Severity
Total number of participants with at least 1 grade reduction in TR severity
Measured: 6, 12 months
Quality of Life (QOL) as Measured by the Kansas City Cardiomyopathy Questionnaire (KCCQ)
Change in KCCQ score from baseline
Measured: 3, 6, and 12 months
All Cause Mortality
Total number of deaths from any cause
Measured: 12 months, 24 months
Death and Heart Failure Hospitalizations
Total number of deaths and hospital admissions due to heart failure
Measured: 12 months
All-cause Mortality, TV Surgery or TV Interventions
Total number of deaths, TV surgeries or interventions
Measured: 24 months
Right ventricular end-diastolic diameter (RVEDD mid)
Change in right ventricular end-diastolic diameter (RVEDD mid)
Measured: 12 months
Major Adverse Events (MAEs)
Overall rate of Major Adverse Events (MAEs)
Measured: 30 days
Reduction in TR grade
Reduction in TR severity as assessed by TEE pre- and post-implantation
Measured: Intraprocedural post-implantation
All-Cause Mortality
Total number of deaths from any cause
Measured: 12 months, annually through 5 years
Heart failure hospitalizations
Total number of hospital admissions due to heart failure
Measured: 12 months, annually through 5 years
Non-elective tricuspid valve re-intervenitions (percutaneous or surgical)
Total number of non-elective tricuspid valve re-interventions
Measured: 12 months, annually through 5 years
Durable RVAD implantation or heart transplant
Total number of patients requiring RVAD impantantion or heart transplant
Measured: 12 months, annually through 5 years
Need for paracentesis
Total nunber of patients who required paracentesis
Measured: 12 months, annually through 5 years
All cause mortality or the first heart failure hospitalization for patients with massive or torrential TR at baseline
Time to death or first heart failure hospitalization
Measured: 12, 24 months
All-cause Hospitalizations
Number of hospitalizations for any cause
Measured: 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Sep 2019
- Study start11 Dec 2019
- Primary completion31 Dec 2027 (estimated)
- Study completion31 Dec 2031 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Tricuspid RegurgitationStudies 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
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 1,270 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Edwards Lifesciences
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Martin B. Leon, MD, Principal investigator, Columbia UniversityMichael J. Mack, MD, Principal investigator, Baylor Scott and White HealthCharles Davidson, MD, Principal investigator, Northwestern UniversityAllen Anderson, MD, Study chair, The University of Texas Health Science Center at San AntonioGorav Ailawadi, MD, Study chair, University of Michigan
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04097145
- Sponsor's protocol ID
- 2019-07
- Acronym
- CLASP II TR
- Status last verified
- Aug 2026
- First submitted
- 18 Sep 2019
- Last updated
- 14 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- No
Publications
Ailawadi G, Davidson CJ, Anderson AS, Hahn RT, Willert P, Gilmore SY, Vinekar C, Zhang B, Muralidhar M, Castro R, Shi L, Graham A, Feldman T, Mack MJ, Leon MB. Design and Rationale of the CLASP II TR Randomized Trial for Severe Tricuspid Regurgitation. Am Heart J. 2026 Oct 9:107627. doi: 10.1016/j.ahj.2026.107627. Online ahead of print.
PubMed 42855029
Study at a glance
From the registry record, last updated by the sponsor on 14 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Prospective, Multicenter, Randomized, Controlled Pivotal Trial to Evaluate the Safety and Effectiveness of Transcatheter Tricuspid Valve Repair With the Edwards PASCAL Transcatheter Valve Repair System and Optimal Medical Therapy (OMT) Compared to OMT Alone in Patients With Tricuspid Regurgitation
- ClinicalTrials.gov ID
- NCT04097145
- Acronym / sponsor ID
- CLASP II TR / 2019-07
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 1,270 participants (estimated)
- Lead sponsor
- Edwards LifesciencesIndustry (pharma, biotech, devices)
- Study start
- 11 Dec 2019 (actual)
- Primary completion
- 31 Dec 2027 (estimated)
- Study completion
- 31 Dec 2031 (estimated)
- First posted
- 20 Sep 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To establish the safety and effectiveness of the Edwards PASCAL Transcatheter Repair System in patients with symptomatic severe tricuspid regurgitation who have been determined to be at an intermediate or greater estimated risk of mortality with tricuspid valve surgery by the cardiac surgeon with concurrence by the local Heart Team
Detailed description
A Prospective, multicenter, randomized, controlled pivotal trial to evaluate the safety and effectiveness of transcatheter tricuspid valve repair with the Edwards PASCAL Transcatheter Valve Repair System and optimal medical therapy (OMT) compared to OMT alone in patients with tricuspid regurgitation. Patients will be seen for follow-up visits at discharge, 30 days, 3 months, 6 months, and annually through 5 years.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Edwards PASCAL System & OMT | Experimental | Device: Edwards PASCAL SystemTranscatheter tricuspid valve repair with the Edwards PASCAL system in patients on optimal medical therapy (OMT) with tricuspid regurgitation |
| Optimal Medical Therapy (OMT) | Active comparator | Drug: Optimal Medical TherapyOptimal medical therapy (OMT) alone in patients with tricuspid regurgitation |
| Single-Arm Registry | Experimental | Device: Edwards PASCAL SystemTranscatheter tricuspid valve repair with the Edwards PASCAL System in conjunction with optimal medical therapy (OMT) in patients with tricuspid regurgitation who are not eligible for randomization |
| Continued Access Study | Experimental | Device: Edwards PASCAL SystemTranscatheter tricuspid valve repair with the Edwards PASCAL system in patients on optimal medical therapy (OMT) with tricuspid regurgitation |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Eighteen (18) years of age or older
- Despite medical therapy, per the local Heart Team, patient has signs of TR, symptoms from TR, or prior heart failure hospitalization from TR.
- Severe or greater tricuspid regurgitation
- New York Heart Association (NYHA) Class II-IVa or heart failure hospitalization in the prior 12 months
- Patient is at an intermediate or greater estimated risk of mortality with tricuspid valve surgery as determined by the cardiac surgeon with concurrence by the local Heart Team
Key exclusion criteria (30 listed)
- Tricuspid valve anatomy not evaluable by TTE or TEE
- Tricuspid valve anatomy precludes proper device deployment and function
- Patient with refractory heart failure requiring, advanced intervention (i.e. patient has or will need left ventricular assist device, or transplantation) (ACC/AHA Stage D heart failure)
- Presence of trans-tricuspid pacemaker or defibrillator leads which meet one of the following:
- Primary non-degenerative tricuspid disease
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Edwards PASCAL SystemAlso: Transcatheter tricuspid valve repair (TTVr)Transcatheter tricuspid valve repair with the Edwards PASCAL System in patients on optimal medical therapy | Device | Edwards PASCAL System & OMT |
| Optimal Medical TherapyOptimal Medical Therapy alone in patients with tricuspid regurgitation | Drug | Optimal Medical Therapy (OMT) |
| Edwards PASCAL SystemTranscatheter tricuspid valve repair with the Edwards PASCAL System in conjunction with OMT | Device | Single-Arm Registry |
| Edwards PASCAL SystemTranscatheter tricuspid valve repair with the Edwards PASCAL system in patients on optimal medical therapy (OMT) with tricuspid regurgitation | Device | Continued Access Study |
Primary outcome
Composite endpoint including all-cause mortality, RVAD implantation or heart transplant, tricuspid valve intervention, heart failure hospitalizations, and Quality of Life improvement (measured by KCCQ score)
Time frame: 6 months
Comparison of number of participants with composite endpoint events between experimental and active comparator arms
15 secondary outcomes
1 Grade Reduction in TR Severity
Time frame: 6, 12 months
Quality of Life (QOL) as Measured by the Kansas City Cardiomyopathy Questionnaire (KCCQ)
Time frame: 3, 6, and 12 months
All Cause Mortality
Time frame: 12 months, 24 months
Death and Heart Failure Hospitalizations
Time frame: 12 months
All-cause Mortality, TV Surgery or TV Interventions
Time frame: 24 months
Right ventricular end-diastolic diameter (RVEDD mid)
Time frame: 12 months
Major Adverse Events (MAEs)
Time frame: 30 days
Reduction in TR grade
Time frame: Intraprocedural post-implantation
All-Cause Mortality
Time frame: 12 months, annually through 5 years
Heart failure hospitalizations
Time frame: 12 months, annually through 5 years
Non-elective tricuspid valve re-intervenitions (percutaneous or surgical)
Time frame: 12 months, annually through 5 years
Durable RVAD implantation or heart transplant
Time frame: 12 months, annually through 5 years
Need for paracentesis
Time frame: 12 months, annually through 5 years
All cause mortality or the first heart failure hospitalization for patients with massive or torrential TR at baseline
Time frame: 12, 24 months
All-cause Hospitalizations
Time frame: 12 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Sep 2026.
- Derived from this study: PubMed 42855029Ailawadi G, Davidson CJ, Anderson AS, Hahn RT, Willert P, Gilmore SY, Vinekar C, Zhang B, Muralidhar M, Castro R, Shi L, Graham A, Feldman T, Mack MJ, Leon MB. Design and Rationale of the CLASP II TR Randomized Trial for Severe Tricuspid Regurgitation. Am Heart J. 2026 Oct 9:107627. doi: 10.1016/j.ahj.2026.107627. Online ahead of print.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Martin B. Leon, MD principal investigator
Columbia University
Michael J. Mack, MD principal investigator
Baylor Scott and White Health
Charles Davidson, MD principal investigator
Northwestern University
79 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Edwards PASCAL System and Optimal Medical Therapy in people with Tricuspid Regurgitation and Tricuspid Valve Insufficiency, run by Edwards Lifesciences at 79 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 30 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 14 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 79 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Edwards TMTT Clinical Affairs ((949) 250-2500, CLASPIITRTrialMgmt@edwards.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Composite endpoint including all-cause mortality, RVAD implantation or heart transplant, tricuspid valve intervention, heart failure hospitalizations, and Quality of Life improvement (measured by KCCQ score) (time frame: 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04097145, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Sep 2026.