May 15, 2020 13:30 ET | Source: Medtronic plc
Milestone Results Presented as Late-Breaking Clinical Science at SCAI 2020
DUBLIN, May 15, 2020 (GLOBE NEWSWIRE) -- Medtronic plc (NYSE:MDT) today announced results from two late-breaking clinical trials presented virtually at the 2020 Society for Cardiovascular Angiography and Interventions (SCAI) Scientific Sessions. Ten-year outcomes from the MelodyTranscatheter Pulmonary Valve (TPV) Therapy demonstrated strong long-term hemodynamic and safety outcomes, while the first-ever results from the investigational Harmony TPV pivotal trial met safety and efficacy endpoints for hemodynamic function at six months.
Congenital heart disease (CHD) is the most common type of birth defect in the United States, affecting an estimated 40,000 infants each year1.Approximately 22% of CHD patients have structural malformations that disrupt the connection between the heart and the lungs2, called the right ventricular outflow tract (RVOT). Typically, a subset of these patients will require open-heart surgery early in life to correct these malformations and some will receive a prosthetic conduit that increases blood flow from the heart to the lungs. Once the conduit is no longer functional, in regions where commercially approved,Melody TPV can be implanted to restore pulmonary valve function and delay additional surgical intervention.As part of the Medtronic congenital heart disease program, the safety and effectiveness of the Harmony TPV is currently being evaluated for patients with RVOT malformations who require a correction to their structural malformation early in life and need a minimally invasive option to restore pulmonary valve function, and are without a conduit.
Melody TPV 10-Year Data Highlights:
Having long-term data is an important milestone especially for this pediatric patient population who are growing and changing so rapidly during a ten-year period, said Thomas K. Jones, M.D., director of cardiac catheterization at Seattle Childrens in Seattle, Wash. While the study reinforces the longevity, durability, and efficacy of the Melody TPV, it will also serve as a study model for future evaluations of novel pediatric congenital heart disease technologies.
The Melody TPV 10-year outcomes trial studied 150 implanted patients ranging from age 7-53, with a median age of 19, and the primary indication for intervention was pulmonary regurgitation (PR). The study assessed Melody long-term functionality, or TPV dysfunction, which is defined as reoperation, catheter reintervention, or hemodynamic dysfunction (i.e. moderate or greater PR and/or mean RVOT gradient >40 mm Hg). The studys safety outcomes included serious device-related adverse events, stent fracture, catheter reintervention, surgical conduit replacement, and mortality rate.
The first transcatheter valve implanted in a human anywhere in the world and the first to be approved by the Food and Drug Administration (FDA), Melody is the longest studied TPV with the largest body of evidence. This landmark 10-year study provides insight into the long-term durability, safety, and effectiveness of the Melody TPV.
First-Ever Data from the Harmony TPV Pivotal Trial
Building onto the initial Early Feasibility Study (EFS), the pivotal study was designed to evaluate the safety and effectiveness of a minimally invasive alternative to open-heart surgery. Harmony TPV was designed to treat patients with RVOT anomalies who develop severe PR typically when a pervious repair fails.
"These pivotal data support the rationale for a potential new therapy designed specifically for the right ventricular outflow tract, saidJohn P. Cheatham, M.D., lead principal investigator and professor emeritus, Department of Pediatrics, Cardiology at Nationwide Children's Hospital in Columbus, Ohio. If future study data continues to be strong, were hopeful that Harmony may potentially impact this critical, hard-to-treat segment of patients, who have limited treatment choices with current transcatheter technologies.
This trial is a prospective, non-randomized study evaluating procedural success, safety, and performance of the Harmony TPV device. The study was active across 12 sites in the U.S., Canada and Japan among 50 patients with a mean age of 29 +/- 11. The rigorous patient selection process included those with severe PR after RVOT malformation repair, and an indication for surgical placement of a RV-pulmonary artery conduit orbioprosthetic pulmonary valve.Due to the highly variable anatomy of the patient population, the study required careful screening to assess device fit.
As demonstrated by these late-breaking studies, were consistently building our body of new, short-, and long-term research around innovative, minimally-invasive TPV solutions for CHD patients, said Sandra Lesenfants, vice president and general manager of the Structural Heart division, which is part of the Cardiac and Vascular Group at Medtronic. These Harmony data demonstrate our commitment to generating new therapies and growing our congenital heart disease program to support a lifetime of care that this patient population needs.
Worldwide, the Harmony TPV is limited to investigational use and not approved for sale or distribution.
In collaboration with leading clinicians, researchers and scientists worldwide, Medtronic offers the broadest range of innovative medical technology for the interventional and surgical treatment of cardiovascular disease and cardiac arrhythmias. The company strives to offer products and services that deliver clinical and economic value to healthcare consumers and providers around the world.
About Medtronic Medtronic plc (www.medtronic.com), headquartered in Dublin, Ireland, is among the world's largest medical technology, services and solutions companies alleviating pain, restoring health and extending life for millions of people around the world. Medtronic employs more than 90,000 people worldwide, serving physicians, hospitals and patients in more than 150 countries. The company is focused on collaborating with stakeholders around the world to take healthcare Further, Together.
Any forward-looking statements are subject to risks and uncertainties such as those described in Medtronic's periodic reports on file with the Securities and Exchange Commission. Actual results may differ materially from anticipated results.
-end-
1Hoffman JL, Kaplan S. The incidence of congenital heart disease.J Am Coll Cardiol. 2002;39(12):1890-1900.
2McElhinney DB, Hennesen JT.The Melody valve and Ensemble delivery system for transcatheter pulmonary valve replacement.Ann NY Acad Sci.2013; 1291: 77-85.
Allison Kyriagis Public Relations +1-612-750-6061
Ryan Weispfenning Investor Relations +1-763-505-4626
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