The ENCIRCLE Trial

Purpose

This study will establish the safety and effectiveness of the SAPIEN M3 System in subjects with symptomatic, at least 3+ mitral regurgitation (MR) for whom commercially available surgical or transcatheter treatment options are deemed unsuitable. Following completion of enrollment, subjects will be eligible for enrollment in the continued access phase of the trial.

Conditions

  • Mitral Regurgitation
  • Mitral Valve Insufficiency

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. 18 years of age or older 2. MR ≥ 3+ 3. NYHA functional class ≥ II 4. Per the Heart Team, commercially available surgical or transcatheter treatment options are deemed unsuitable due to clinical, anatomic or technical considerations. 5. Subject's heart failure management has been optimized based on subject characteristics and applicable guidelines, and stable for at least 30 days prior to enrollment. 6. The subject or subject's legal representative has been informed of the nature of the study, agrees to its provisions and has provided written informed consent.

Exclusion Criteria

  1. Mitral/cardiac anatomy that would preclude appropriate delivery and deployment of the SAPIEN M3 dock or valve 2. Inappropriate anatomy for femoral introduction and delivery of the SAPIEN M3 dock and valve 3. Presence of any device that will contact or interfere with the SAPIEN M3 System during delivery or after implantation 4. Left ventricular ejection fraction <25% 5. Severe right ventricular dysfunction 6. Need for aortic, tricuspid or pulmonic valve intervention within the next 12 months 7. History of heart transplant 8. Cardiac imaging evidence of intracardiac mass, thrombus or vegetation 9. Active bacterial endocarditis within 180 days of the procedure 10. Hemodynamic instability requiring inotropic or mechanical support within 30 days of the procedure 11. Myocardial infarction within 30 days of the procedure 12. Clinically significant untreated coronary artery disease requiring revascularization 13. Any percutaneous cardiovascular intervention, cardiovascular surgery, or carotid surgery within 30 days of the procedure 14. Stroke or transient ischemic attack within 90 days of the procedure 15. Irreversible, severe pulmonary hypertension 16. Chronic obstructive pulmonary disease requiring home oxygen therapy or chronic outpatient oral steroid use 17. Renal insufficiency or receiving renal replacement therapy 18. Liver disease 19. Planned surgery within the next 12 months 20. Inability to tolerate or a medical condition precluding treatment with antithrombotic therapy, including heparin administration during the procedure 21. Active infection requiring current antibiotic therapy 22. Active SARS-CoV-2 infection (Coronavirus-19 [COVID-19]) or previously diagnosed with COVID-19 with sequelae that could confound endpoint assessments 23. Leukopenia, anemia, thrombocytopenia, history of bleeding diathesis or coagulopathy or hypercoagulable states 24. Refusal of blood products 25. Female who is pregnant or lactating 26. Estimated life expectancy <12 months due to non-cardiac conditions 27. Participating in another investigational drug or device study that has not reached its primary endpoint 28. Subject considered to be part of a vulnerable population

Study Design

Phase
N/A
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Single Group Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
TMVR - Main Cohort 		Subjects for whom commercially available surgical or transcatheter treatment options are deemed unsuitable will have transcatheter mitral valve replacement (TMVR).
  • Device: SAPIEN M3 valve and dock
    During the procedure a SAPIEN M3 dock and a SAPIEN M3 valve will be implanted via transseptal approach.
Experimental
TMVR - Failed TEER Registry 		Subjects who have had an attempted but failed transcatheter edge-to-edge repair (TEER) procedure will have TMVR.
  • Device: SAPIEN M3 valve and dock
    During the procedure a SAPIEN M3 dock and a SAPIEN M3 valve will be implanted via transseptal approach.
Experimental
TMVR - MAC Registry 		Subjects with mitral annular calcification (MAC) will have TMVR.
  • Device: SAPIEN M3 valve and dock
    During the procedure a SAPIEN M3 dock and a SAPIEN M3 valve will be implanted via transseptal approach.

Recruiting Locations

University of Kansas
Kansas City, Kansas 66160

More Details

Status
Recruiting
Sponsor
Edwards Lifesciences

Study Contact

Edwards THV Clinical Affairs
+1 (949) 250-2500
THV_CT.gov@Edwards.com

Detailed Description

This is a prospective single-arm, multicenter study.