About this trial
The CardioClip study is exploring the use of a wireless sensor to monitor pressure in the pulmonary artery. This sensor is inserted much like the mTEER procedure, a non-surgical method through a vein in the groin. The investigators want to find out if the sensor, by constantly sending information about heart function, can help improve patient outcomes. This means doctors could adjust medications based on real-time pressure changes detected by the sensor. The results from this study will help pave the way for future trials, asking if using these wireless sensors could benefit people with valve disease and heart failure.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Significant (moderate-severe [3+] or severe [4+] secondary MR)
Left ventricular dysfunction (ejection fraction >20% and <50%)
New York Heart Association (NYHA) class II-IVa symptoms
Sign informed consent to participate in the study
Disqualifiers
Left ventricular (LV) end-systolic dimension 70 mm
PA systolic pressure 70 mmHg (fixed)
Mitral valve (MV) orifice area <4.0 cm2
Commissural MR jet or leaflet anatomy not suitable for mTEER
Trial design
Parallel
Treatments tested in this trial
CardioMEMS
DeviceHemodynamic-guided optimization will be performed using the CardioMEMS CardioClip device.
Treatment groups
Trial outcomes
Primary outcomes
The change in Kansas City Cardiomyopathy Questionnaire (KCCQ) Overall Summary (OS) score between baseline (pre-mTEER) and 12 months after mTEER.
The Kansas City Cardiomyopathy Questionnaire (KCCQ) is a 23-item self-administered questionnaire developed to independently measure the patient's perception of their health status, which includes heart failure symptoms, impact on physical and social function, and how their heart failure impacts their quality of life (QOL) within a 2-week recall period. To facilitate interpretation, all scores are represented on a 0-to-100-point scale, where lower scores represent more severe symptoms and/or limitations and scores of 100 indicate no symptoms, no limitations, and excellent quality of life (i.e., higher score indicates a better outcome). The Overall Summary (OS) score is the mean of four subdomain scores, each ranging from 0 to 100. A higher OS score indicates better outcome.
Secondary outcomes
All-cause mortality rate at 12 months
All-cause mortality rate will be calculated at 12 months.
Rate of HFH at 12 months
Heart failure hospitalization (HFH) rate will be calculated.
Number of participants who achieve excellent clinical outcome
An excellent clinical outcome is defined by a) survival, b) KCCQ-OS \>60 points, and c) no decline ≥10 points in the KCCQ-OS relative to baseline at 12 months
KCCQ score - Physical Function domain
The KCCQ-OS evaluates health status from four principal domains: physical function, social function, symptoms, and quality of life. Participants receive a score for 0 to 100 in each domain, with higher scores indicating better health status in that specific domain. The score for each domain will be an individual secondary endpoint.
Sponsors and contacts
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Columbia University
Lead sponsor
Abbott
Collaborator
National Heart, Lung, and Blood Institute (NHLBI)
Collaborator