Boston Scientific Corp. and Abbott Laboratories continue to parry over clinical trials comparing the latter’s Amplatzer Amulet with Boston Scientific’s Watchman in sealing the heart’s left atrial appendage (LAA) to prevent ischemic stroke in patients with atrial fibrillation (Afib). In one of five presentations at the 34th Transcatheter Cardiovascular Therapeutics annual scientific symposium in Boston in mid-September, Abbott said device-related thrombosis or peri-device leak more frequently preceded strokes in patients with Watchman compared to those with Abbott’s Amplatzer Amulet device.
The 2022 Transcatheter Cardiovascular Therapeutics annual meeting highlighted mostly positive outcomes from major trials conducted by nearly all the big players in the cardiac device market. Here’s our round-up of the meeting’s high points, with updates from Abbott Laboratories, Abiomed Inc., Boston Scientific Corp., Edwards Lifesciences Corp., Inari Medical Inc., Medtronic plc and Recor Medical Inc.
Boston Scientific Corp.’s Sentinel cerebral protection system missed its primary endpoint of reduced stroke in the PROTECTED TAVR clinical trial. The data did, however, show a significant reduction in risk of disabling stroke in the immediate days after a transcatheter aortic valve replacement (TAVR) procedure.
The use of leads for cardiac electrophysiology devices has proven nothing short of controversial in the past, usually an artifact of efforts to craft ever-skinnier leads that won’t disrupt the blood vessels into which they are placed. Dublin-based Medtronic plc is working to avoid these problems with leads without sacrificing the advantages of leads via its EV ICD system, which soundly passed the test in a study presented at this year’s edition of the European Society of Cardiology (ESC) annual scientific sessions.
Boston Scientific Corp. acquired privately held Obisidio Inc., adding the company’s gel embolic material (GEM) technology to its portfolio. GEM is a ready-to-use, semi-solid material that conforms to the vasculature in which it is placed to immediately obstruct or reduce blood flow to a tumor or abnormality or stop hemorrhaging.
Intravascular ultrasound (IVUS) is an established method for gaining an appreciation of the sources of closure of the coronary arteries, but its use in the peripheral vasculature is not quite as well established. Nonetheless a new paper makes the case that IVUS may be appropriate for widespread use in connection with diseases of the peripheral vasculature, a position that could lead to a considerable expansion of sales of IVUS systems.
Patent litigation is notoriously drawn out in some instances, as is the case with disputes between Boston Scientific Corp. (BSX), of Natick, Mass., and Nevro Corp., of Redwood City, Calif. However, the two announced Aug. 1 that they have come to terms over several lawsuits, with each enjoying the right to practice some of the disputed patents and Nevro taking in a net payment of $85 million.
Boston Scientific Corp. signed an agreement to purchase a majority stake (64%) of M.I. Tech Co. Ltd. for $230 million. The publicly traded Pyeongtaek South Korea-based company manufactures device solutions used in endoscopic and urologic procedures. Boston Scientific has distributed M.I. Tech’s Hanarostent non-vascular stent in Japan since 2015. The deal marks Boston Scientific’s first acquisition of the year, following a busy spending spree in 2021.
The U.S. FDA has received a citizen’s petition regarding the use of neuropsychological testing prior to placement of a deep brain stimulation (DBS) device for treatment of Parkinson’s disease. The petitioners, most of whose names were redacted, said that there is no standardized test for this purpose, and thus the patient should have sole discretion of evaluating the meaning of their own tests or the use of these tests should not be seen dispositive of the question of whether to go ahead with placement of a DBS device for Parkinson’s.
The second generation of Boston Scientific Corp.’s Acurate Neo2 valve has demonstrated better performance than its predecessor, showing a threefold reduction of paravalvular leakage (PVL) said researchers. During the hotline/late-breaking trials session on May 17 at the EuroPCR meeting held in Paris, Andrea Buono, interventional cardiologist at Fondazione Poliambulanza Istituto Ospedaliero in Brescia, Italy, presented results from a large study comparing the performance of Acurate Neo and Acurate Neo2 in 13 Italian centers.
