"Since the introduction of the first implantable pacemaker in 1958, pacemaker technology has continued to evolve into smaller, more efficient devices," said Dr. Mark D. Carlson, chief medical officer and vice president of global clinical affairs for St. Jude Medical. "Despite this evolution, pacing technology has, until now, required surgery in addition to leads that connect the pacemaker to the heart. The Nanostim leadless pacemaker is the first miniaturized device that removes the need for leads, thus offering less invasive and less complicated procedures for physicians and patients around the world. We believe the innovative nature of this technology will change the future landscape of cardiac rhythm management devices by revolutionizing the delivery methods and design of these life-saving technologies."
Cardiac pacemakers are used to treat bradycardia, which is a heart rate that is too slow. These devices monitor the heart and provide electrical stimulation when the heart beats too slowly for each patient's specific physiological requirements. More than 4 million people worldwide have an implanted pacemaker or other cardiac rhythm management device, and an additional 700,000 patients receive the devices each year.
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LEADLESS II Clinical Trial Design
The LEADLESS II pivotal trial is a prospective, non-randomized, multi-center, international clinical research trial designed to evaluate the safety and effectiveness of the Nanostim leadless pacemaker in patients indicated for the device. It is being conducted under an Investigational Device Exemption (IDE) from theFDA, and will enroll approximately 670 patients at 50 centers in the U.S., Canada and Europe.
LEADLESS Clinical Trial Preliminary Results
Initial results from the LEADLESS study, a prospective, single-arm, multicenter study evaluating patients with the Nanostim leadless pacemaker, were presented last year and demonstrated overall device performance comparable to conventional pacemakers. Total implant procedure times averaged 28 minutes. Even with miniaturization, the device battery is expected to have an average lifespan of more than nine years at 100 percent pacing, or more than 13 years at 50 percent pacing.
The Nanostim pacemaker received CE Mark approval in 2013 and is available in select European markets. The device is not available for sale in the U.S.
About St. Jude Medical
St. Jude Medical is a global medical device manufacturer dedicated to transforming the treatment of some of the world's most expensive, epidemic diseases. The company does this by developing cost-effective medical technologies that save and improve lives of patients around the world. Headquartered in St. Paul, Minn., St. Jude Medical has four major clinical focus areas that include cardiac rhythm management, atrial fibrillation, cardiovascular and neuromodulation. For more information, please visit sjm.com or follow us on Twitter @SJM_Media.
