. Specifically, these patients are unsuited for other treatments, have marked physical limitations related to their heart failure, and have remained symptomatic despite optimal medical therapy. They also have a regular heart rhythm, are not candidates for resynchronization, and possess a left ventricular ejection fraction of 25%-45%.
The cardiac contractility modulation system is indicated to improve 6-minute hall walk distance, quality of life, and functional status in these patients.
The system is made up of several components, including the implantable pulse generator, a programmer, and software. The pulse generator is connected to three leads that have been implanted in the heart, after which the device is tested and programmed to deliver pulses during normal heartbeats, which improves the heart’s squeezing capability. In randomized, multicenter clinical trials, the system plus optimal medical therapy demonstrated improvements in distance during 6-minute walking tests and standard assessments of heart failure symptoms when compared with optimal medical therapy alone.
The Breakthrough Device designation means this system treats a life-threatening disease and addresses unmet medical needs among some patients. “The FDA recognized the unmet need for these patients and worked with the manufacturer through our Breakthrough Device Program to efficiently bring this product to market, while ensuring it meets our regulatory requirements for safety and effectiveness,” Bram Zuckerman, MD, the director of the division of cardiovascular devices in the FDA’s Center for Devices and Radiological Health said in a news release from the agency.