While commending the Centers for Medicare and Medicaid Services on its proposed coverage of the transcatheter aortic valve replacement procedure, makers of the SAPIEN artificial valve asked for more flexibility in the clinical trial limitations set by the agency, in an official comment they released on March 5.
Edwards Lifesciences, the manufacturer of the only valve approved for the TAVR procedure in the United States, posted its comment during the 60-day period, which began after CMS released its coverage proposal for TAVR in February.
In its proposal, CMS restricts TAVR coverage to five criteria, including the use of an approved valve, presence of multidisciplinary teams, and enrollment in a registry.
Edwards officials wrote they were pleased that CMS had proposed "clear and flexible national coverage for TAVR," and added that "for appropriately selected Medicare beneficiaries, the evidence is more than adequate for CMS to conclude that TAVR improves health outcomes and should be considered reasonable and necessary under the Medicare statute," if provided under the CMS criteria.
The Edwards SAPIEN valve is currently approved for use in inoperable patients with severe aortic stenosis. Other use of the SAPIEN valve is limited to clinical trials. In their comments, Edwards officials asked CMS for flexibility in the trials they consider for coverage determination.
"CMS’s proposed requirement limiting coverage for unlabeled uses to ‘superiority trials’ undermines the agency’s efforts to promote continued US-based clinical investigations in Medicare beneficiaries aimed at better understanding key determinants of health and quality of life outcomes," according to the Edwards’ comments.
"Noninferiority and other clinical trial designs play an important role in the advancement of medical technology," the company added, saying that if the proposed conditions aren’t revised, important, yet relatively small, patient populations may not be able to receive treatment.
Edwards, which said its transcatheter aortic valves have been implanted in more than 25,000 patients around the world, came in strong support of multidisciplinary heart teams, one of the requirements set by CMS for TAVR coverage, and strongly encouraged by leading cardiovascular organizations.
"It is imperative that at least two engaged cardiothoracic surgeons and two interventional cardiologists at each site coordinate all clinicians to form a high-functioning multi-disciplinary heart team, a key concept integral to assuring TAVR success," Edwards officials wrote in their comment.
The company also addressed credentialing, an issue which four leading cardiovascular organizations also recently addressed in a consensus document.
"We support appropriate facility and heart team criteria -- rather than traditional individual physician-based credentialing," to achieve TAVR success.
Following the CMS proposal, the Society of Thoracic Surgeons and the American College of Cardiology issued a statement, saying that they were pleased with CMS’s comprehensive approach to the coverage of TAVR.
CMS is expected to issue a final decision on TAVR coverage by May.