A Study to Continue to Evaluate the Safety and Clinical Performance of the MOMENTUM 3 Left Ventricle Assist System
Overview
Tab Title Description
Study type
InterventionalDescribes the nature of a clinical study. Types include:
- Observational study — observes people and measures outcomes without affecting results.
- Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
- Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
Study IDs
Site IRB
- Rochester, Minnesota: 16-007461
NCT ID: NCT02892955
Sponsor Protocol Number: MOMENTUM 3 CAP
About this study
The purpose of this study is to continue to evaluate the safety and clinical performance of the HeartMate MOMENTUM 3 left ventricle assist system for the treatment of advanced, refractory, left ventricular heart failure following completion of participation in the the MOMENTUM 3 IDE study.
Participation eligibility
Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.
Inclusion Criteria
- Subject or legal representative has signed Informed Consent Form (ICF)
- Age ≥ 18 years
- BSA ≥ 1.2 m2
- NYHA Class III with dyspnea upon mild physical activity or NYHA Class IV
- LVEF ≤ 25%
- Is inotrope dependent
- Is not inotrope dependent, CI < 2.2 L/min/m2 while not on inotropes, and must also meet one of the following
- On optimal medical management (OMM), based on current heart failure practice guidelines for at least 45 out of the last 60 days and is failing to respond
- Advanced heart failure for at least 14 days and dependent on intra-aortic balloon pump for at least 7 days
- Females of child bearing age must agree to use adequate contraception
Exclusion Criteria
- Etiology of HF due to or associated with uncorrected thyroid disease, obstructive cardiomyopathy, pericardial disease, amyloidosis, or restrictive cardiomyopathy
- Technical obstacles which pose an inordinately high surgical risk, in the judgment of the investigator
- Existence of ongoing mechanical circulatory support (MCS) other than IABP
- Positive pregnancy test if of childbearing potential
- Presence of mechanical aortic cardiac valve that will not be either converted to a bioprosthesis or oversewn at the time of LVAD implant
- History of any organ transplant
- Platelet count < 100,000 x 103/L (< 100,000/ml)
- Psychiatric disease/disorder, irreversible cognitive dysfunction or psychosocial issues that are likely to impair compliance with the study protocol and LVAS management
- History of confirmed, untreated Abdominal Aortic Aneurysm (AAA) > 5 cm in diameter within 6 months of enrollment
- Presence of an active, uncontrolled infection
- Intolerance to anticoagulant or antiplatelet therapies or any other peri/post-operative therapy that the investigator will require based upon the patients' health status
- Presence of any one of the following risk factors for indications of severe end organ dysfunction or failure
- An INR ≥ 2.0 not due to anticoagulation therapy
- Total bilirubin > 43 umol/L (2.5 mg/dl), shock liver, or biopsy proven liver cirrhosis
- History of severe chronic obstructive pulmonary disease (COPD) defined by FEV1/FVC < 0.7, and FEV1 <50% predicted
- Fixed pulmonary hypertension with a most recent PVR ≥ 8 Wood units that is unresponsive to pharmacologic intervention
- History of stroke within 90 days prior to enrollment, or a history of cerebrovascular disease with significant (> 80%) uncorrected carotid artery stenosis
- Serum Creatinine ≥ 221 umol/L (2.5 mg/dl) or the need for chronic renal replacement therapy
- Significant peripheral vascular disease (PVD) accompanied by rest pain or extremity ulceration
- Has moderate to severe aortic insufficiency without plans for correction during pump implant
- Pre albumin < 150 mg/L (15mg/dL) or Albumin < 30g/L (3 g/dL) (if only one available); pre albumin < 150 mg/L (15mg/dL) and Albumin < 30g/L (3 g/dL) (if both available)
- Planned Bi-VAD support prior to enrollment
- Has known hypo or hyper coagulable states such as disseminated intravascular coagulation and heparin induced thrombocytopenia
- Participation in any other clinical investigation that is likely to confound study results or affect the study
- Any condition other than HF that could limit survival to less than 24 months
Participating Mayo Clinic locations
Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.
Mayo Clinic Location |
Status |
|
Rochester, Minn.
Mayo Clinic principal investigator John Stulak, M.D. |
Closed for enrollment |
|
More information
Publications
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Contemporary continuous-flow left ventricular assist devices (CF-LVADs) are associated with degradation of von Willebrand factor (vWF) high-molecular-weight multimers (HMWMs), a critical factor supporting platelet function. We hypothesized that the HeartMate 3 fully magnetically levitated LVAD, designed to reduce circulatory shear stress, favorably influences these hemostatic parameters.
Read More on PubMed
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The HeartMate 3 left ventricular assist system (LVAS; St. Jude Medical, Inc., formerly Thoratec Corporation, Pleasanton, CA) was recently introduced into clinical trials for durable circulatory support in patients with medically refractory advanced-stage heart failure. This centrifugal, fully magnetically levitated, continuous-flow pump is engineered with the intent to enhance hemocompatibility and reduce shear stress on blood elements, while also possessing intrinsic pulsatility. Although bridge-to-transplant (BTT) and destination therapy (DT) are established dichotomous indications for durable left ventricular assist device (LVAD) support, clinical practice has challenged the appropriateness of these designations. The introduction of novel LVAD technology allows for the development of clinical trial designs to keep pace with current practices. The prospective, randomized Multicenter Study of MagLev Technology in Patients Undergoing Mechanical Circulatory Support Therapy With HeartMate 3 (MOMENTUM 3) clinical trial aims to evaluate the safety and effectiveness of the HeartMate 3 LVAS by demonstrating non-inferiority to the HeartMate II LVAS (also St. Jude Medical, Inc.). The innovative trial design includes patients enrolled under a single inclusion and exclusion criteria , regardless of the intended use of the device, with outcomes ascertained in the short term (ST, at 6 months) and long term (LT, at 2 years). This adaptive trial design includes a pre-specified safety phase (n = 30) analysis. The ST cohort includes the first 294 patients and the LT cohort includes the first 366 patients for evaluation of the composite primary end-point of survival to transplant, recovery or LVAD support free of debilitating stroke (modified Rankin score >3), or re-operation to replace the pump. As part of the adaptive design, an analysis by an independent statistician will determine whether sample size adjustment is required at pre-specified times during the study. A further 662 patients will be enrolled to reach a total of 1,028 patients for evaluation of the secondary end-point of pump replacement at 2 years.
Read More on PubMed
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The HeartMate 3 (HM3) left ventricular assist device (LVAD) is designed to support advanced heart failure patients. This centrifugal flow pump has a magnetically levitated rotor, artificial pulse, textured blood-contacting surfaces, optimized fluid dynamics, large blood-flow gaps, and low shear stress. Preclinical tests were conducted to assess hemocompatibility. A computational fluid dynamics (CFD) model guided design for low shear stress and sufficient washing. Hemolysis testing was conducted on six pumps. Plasma-free hemoglobin (PfHb) and modified index of hemolysis (MIH) were compared with HeartMate II (HMII). CFD showed secondary flow path residence times between 27 and 798 min, comparable with main flow residence times between 118 and 587 min; HM3 vs. HMII shear stress exposure above 150 Pa was 3.3 vs. 11 mm within the pump volume and 134 vs. 604 mm on surfaces. In in vitro hemolysis tests at 2, 5, and 10 L/min, average pfHb 6 hours after test initiation was 58, 74, and 157 mg/dl, compared with 112, 123, and 353 mg/dl for HMII. The HM3/HMII ratio of average MIH at 2, 5, and 10 L/min was 0.29, 0.36, and 0.22. Eight 60 day bovine implants were tested with average flow rates from 5.6 to 6.4 L/min with no device failures, thrombosis, or hemolysis. Results support advancing HM3 to clinical trials.
Read More on PubMed
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The HeartMate 3 left ventricular assist system (LVAS) is intended to provide long-term support to patients with advanced heart failure. The centrifugal flow pump is designed for enhanced hemocompatibility by incorporating a magnetically levitated rotor with wide blood-flow paths and an artificial pulse.
Read More on PubMed