1-Year Outcomes of Transcatheter Edge-to-Edge Repair in Anatomically Complex Degenerative Mitral Regurgitation Patients.

Background: Favorable 6-month outcomes from the CLASP IID Registry (Edwards PASCAL transcatheter valve repair system pivotal clinical trial) demonstrated that mitral valve transcatheter edge-to-edge repair with the PASCAL transcatheter valve repair system is safe and beneficial for treating prohibitive surgical risk degenerative mitral regurgitation (DMR) patients with complex mitral valve anatomy.
Objectives: The authors sought to assess 1-year safety, echocardiographic and clinical outcomes from the CLASP IID Registry.
Methods: Patients with 3+ or 4+ DMR who were at prohibitive surgical risk, had complex mitral valve anatomy based on the MitraClip Instructions for Use, and deemed suitable for treatment with the PASCAL system were enrolled prospectively. Safety, clinical, echocardiographic, functional, and quality-of-life outcomes were assessed at 1 year. Study oversight included a central screening committee, echocardiographic core laboratory, and clinical events committee.
Results: Ninety-eight patients were enrolled. One-year Kaplan-Meier (KM) estimates of freedom from composite major adverse events, all-cause mortality, and heart failure hospitalization were 83.5%, 89.3%, and 91.5%, respectively. Significant mitral regurgitation (MR) reduction was achieved at 1 year (P < 0.001 vs baseline) including 93.2% at MR ≤2+ and 57.6% at MR ≤1+ with improvements in related echocardiographic measures. NYHA functional class and Kansas City Cardiomyopathy Questionnaire score also improved significantly (P < 0.001 vs baseline).
Conclusions: At 1 year, treatment with the PASCAL system demonstrated safety and significant MR reduction, with continued improvement in clinical, echocardiographic, functional, and quality-of-life outcomes, illustrating the value of the PASCAL system in the treatment of prohibitive surgical risk patients with 3+ or 4+ DMR and complex mitral valve anatomy.
Competing Interests: Funding Support and Author Disclosures Dr Smith is on the CLASP IID Trial leadership team and has received institutional grant and travel support for device evaluation from Edwards Lifesciences; has received institutional grants from Artivion; and honoraria for speaking from Artivion and Medtronic. Dr Lim is a consultant for Opus, Nyra, Philips, Venus, and Valgen; and has received research grants from Abbott, Boston Scientific, Corvia, Edwards Lifesciences, Medtronic, V Wave, and WL Gore. Dr Gillam is a consultant for Philips, Bracco, and Edwards Lifesciences; and directs an echocardiography core laboratory for Abbott, Edwards Lifesciences, and Medtronic for which she receives no direct compensation. Dr Zahr is a consultant and has received research grants from Edwards Lifesciences. Dr Chadderdon is an educational consultant for Edwards Lifesciences and Medtronic. Dr Makkar is a consultant and has received research grants from Edwards Lifesciences, Abbott, Medtronic, and Boston Scientific. Dr Goldman consults in minimally invasive mitral valve observation for Edwards Lifesciences. Dr Rudolph has received research grants from Edwards Lifesciences, Abbott, and Boston Scientific. Dr Hermiller is a consultant and proctor for Edwards Lifesciences. Dr Dhoble is a consultant and proctor for Edwards Lifesciences and Abbott. Dr Smalling has received clinical trial grant support from Edwards Lifesciences, Medtronic, and Abbott; and serves as a consultant for Abbott. Dr Latib is a consultant and serves on the advisory board for Boston Scientific, Edwards Lifesciences, Medtronic, Abbott, and Philips. Dr Kodali is a consultant for Admedus, Dura Biotech, TriCares, Phillips, and TriFlo; has received institutional research funding from Edwards Lifesciences, Medtronic, Abbott, Boston Scientific, and JenaValve; and serves on a scientific advisory board and has received equity from Dura Biotech, MicroInterventional Devices, Thubrikar Aortic Valve Inc, Supira, Admedus, TriFlo, Adona, Tioga, and X-Dot. Dr Lurz has received institutional grants from Edwards Lifesciences, Abbott, and ReCor. Dr O’Neill is a consultant for Abiomed, BSCI, and Abbott; and was previously a consultant for Edwards Lifesciences. Dr Laham is a speaker for Abbott, Edwards Lifesciences, and Medtronic. Dr Kar is a consultant for Abbott, Medtronic, Boston Scientific, WL Gore, Laminar, Intershunt, and V wave; has received institutional research grants from Abbott, Medtronic, Boston Scientific, Edwards Lifesciences, and Highlife; is the co-national principal investigator for the REPAIR MR Trial and EXPAND registry and co-national principal investigator for the PINNACLE FLX Trial and CHAMPION Trial; serves on the steering committee for the Triluminate Trial; and is an executive committee member for the RELIEVE HF Trial. Dr Schofer has received travel support from Edwards Lifesciences and Abbott/St. Jude Medical; has received speaker honoraria from Edwards Lifesciences and Boston Scientific; and is a consultant for Edwards Lifesciences and Abbott. Dr Inglessis-Azuaje is a proctor for Edwards Lifesciences and Medtronic; and serves as a lecturer for Edwards Lifesciences and Boston Scientific. Dr Baldus has received research funding from Abbott; and has received lecturing fees from Edwards Lifesciences, Abbott, and Medtronic. Dr Szerlip is a proctor for Edwards Lifesciences and Abbott; is a speaker for Edwards Lifesciences and Boston Scientific; serves as a national principal investigator for an early feasibility study for Edwards Lifesciences; serves on the advisory board for Abbott; and is part of a steering committee for Medtronic. Dr Kliger is a consultant for and has received speaker honoraria from Edwards Lifesciences, Medtronic, and Siemens. Dr Webb is a consultant and national principal investigator for Edwards Lifesciences–sponsored clinical studies; and has received speaking honoraria, travel support, or grant support from Edwards Lifesciences. Dr von Bardeleben is a principal investigator for Phase 3, post-market clinical trials and investigator-initiated trials (Reshape II HF, TENDER, EuroSMR and other registries) for Abbott, Daiichi Sankyo, Edwards Lifesciences, Medtronic, Neochord, Philips and Siemens. Dr Ruf has received speaker, consulting, and proctoring fees from Abbott Laboratories and Edwards Lifesciences. Dr Guerrero has received grant support, and consulting and proctoring fees from Edwards Lifesciences. Dr McCabe is a consultant and has received honoraria from Edwards Lifesciences, Medtronic, Boston Scientific, and Abbott; and holds equity in Excision Medical. Dr Davidson is a consultant and has received research grant support from Edwards Lifesciences. Dr Shah has received grant support, consulting, and proctoring fees from Edwards Lifesciences. Dr Yadav is a consultant and speaker for Edwards Lifesciences, Abbott, Dasi Simulations, and Shockwave Medical. Dr Koulogiannis is a consultant and advisory board member for Edwards Lifesciences; and is a speaker for Abbott. Dr Marcoff serves as a member of the echocardiography core laboratory for Edwards Lifesciences and Abbott for which he receives no direct compensation. Dr Hausleiter is a consultant, and receives speaker honoraria and institutional research support from Edwards Lifesciences. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.
(Copyright © 2023. Published by Elsevier Inc.)