The ENCIRCLE Trial for Mitral Regurgitation

This study is testing the safety and effectiveness of a new device called the SAPIEN M3 System for people with significant mitral regurgitation (MR), a condition where a heart valve doesn't close properly. You might be able to join if you are 18 or older, have severe MR (at least 3+), and your heart failure symptoms are affecting your daily life (NYHA functional class II or higher). This trial is for people whose doctors have decided that standard surgery or other catheter-based treatments are not suitable for them. The main goal is to see how many people experience death or need to be re-hospitalized for heart failure within one year after receiving the SAPIEN M3 valve and dock. The study is currently enrolling participants.

Study design
This is a single-arm study, meaning all 900 participants will receive the SAPIEN M3 valve and dock. It is a multicenter study, conducted at multiple locations.
What's involved
During the procedure, you will have a SAPIEN M3 dock and a SAPIEN M3 valve implanted through a transseptal approach (a way to access the heart through a vein).
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for one year to measure outcomes like death and rehospitalization for heart failure.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT04153292

The ENCIRCLE Trial

Recruiting
NAAges 18+InterventionalTreatment
Edwards Lifesciences
~900 participants
Updated 2026-02-25 on ClinicalTrials.gov
What's tested:SAPIEN M3 valve and dock

At a glance

Recruiting sites
3 of 68 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Non-hierarchical composite of death and heart failure rehospitalization
Measured over 1 year
Mitral Regurgitation
Mitral Valve Insufficiency
68 sites across 36 states
California6
Florida5
Arizona3
Minnesota3
Ohio3
Texas3
Israel3
Georgia2
  • John Webb, MD · PRINCIPAL_INVESTIGATOR · St. Paul's Hospital
  • Mayra Guerrero, MD · PRINCIPAL_INVESTIGATOR · Mayo Clinic
  • David Daniels, MD · PRINCIPAL_INVESTIGATOR · California Pacific Medical Center

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  • Non-hierarchical composite of death and heart failure rehospitalization1 year

    Number of subjects with death and/or heart failure rehospitalization