NCT03142152 · Cardiac Dimensions, Inc.
The EMPOWER Trial - The Carillon Mitral Contour System® in Treating Heart Failure With FMR
What this study is about
The objective of this forward-looking, randomly assigned, double- blinded (patient and assessors), sham-controlled clinical trial is to assess the safety and effectiveness of the CMCS in treating heart failure with functional regurgitation (FMR).
View original scientific description
The objective of this prospective, randomized, double- blinded (patient and assessors), sham-controlled clinical trial is to assess the safety and efficacy of the CMCS in treating heart failure with functional regurgitation (FMR).
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Symptomatic heart failure with functional (secondary) mitral regurgitation of at least 1+ (mild) severity
- NYHA II, III, or IV
- Six Minute Walk distance ≥ 100 meters and ≤ 600 meters
- Left Ventricular Ejection Fraction ≤ 50%
- ≥ 55 mm (women)
- ≥ 57 mm (men)
- LVESD ≤ 75 mm
- Corrected NT-proBNP \> 1200 pg/ml measured within 60 days of randomization, and/or one or more heart failure hospitalizations within one year prior to consent or one or more outpatient visits for intensification of heart failure therapy within one year prior to consent.
- Optimal Guideline directed heart failure medical therapy assessed by the Central Review Committee
- Age ≥ 18 years old
- Carillon implant can be sized and placed in accordance with the IFU
- The subject has been informed of the nature of the trial and agrees to its provisions, including the possibility of randomization to the Control group and returning for all required post-procedure follow-up visits, and has provided written informed consent
Exclusion criteria
- Presence of a mechanical or bio-prosthetic mitral valve or, mitral valve annuloplasty, or leaflet repair device
- Significant organic mitral valve pathology (e.g., moderate or severe myxomatous degeneration, with or without mitral leaflet prolapse, rheumatic disease, full or partial chordal rupture)
- Severe tricuspid regurgitation associated with right ventricular dysfunction and enlargement
- Severe mitral annular calcification
- Severe aortic stenosis
- Expected to require any cardiac surgery, including surgery for coronary artery disease (CAD) or valve disease within one (1) year
- Chronic, severe, medical conditions or pathology, other than heart failure, that will prevent likely survival beyond twelve (12) months or any other medical condition that, in the judgement of the Investigator or Central Review Committee, makes the patient a poor candidate for this study
- An entire list of eligibility is available in the clinical investigational plan
Where
- Gilbert, Arizona
- Phoenix, Arizona
- Tucson, Arizona
- Long Beach, California
- Los Angeles, California
- Redwood City, California
- San Diego, California
- San Francisco, California
- Littleton, Colorado
- Washington D.C., District of Columbia
- Delray Beach, Florida
- Miami, Florida
And 52 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Apr 13, 2026 · Source of record for eligibility and locations