The RESPOND study is a prospective, open label, single arm, multi-center, observational post market study designed to collect real world clinical and device performance outcomes data of the commercially available Lotus Valve used in routine clinical practice for the treatment of severe calcific aortic stenosis. Approximately 1000 real-world, consecutive subjects will be enrolled at up to 50 study centers in Europe, Asia Pacific and Central/South America.~All enrolled subjects will be contacted for follow-up at 30 days, 1, 2, 3, 4 and 5 years post index valve implantation. Follow-up visit at 1 year post valve implantation should be conducted via outpatient clinic visit. Follow-up visits at 30 days and 2 through 5 years may be conducted in person (preferred) and via telephone interview. Subjects who are not implanted with a Lotus Valve will be followed for safety through 30 days after the initial attempted index procedure.~Collection of safety events will include any serious adverse event (SAE) that led to death, serious adverse device effect (SADE), adverse device effect (ADE), unanticipated serious adverse device effect (USADE), and all Valve Academic Research Consortium (VARC) events regardless of seriousness and device relationship through 5 year follow-up.~The RESPOND study will be conducted in accordance with the International Organization for Standardization (ISO) 14155: 2011; ethical principles that have their origins in the Declaration of Helsinki; the relevant parts of the International Conference on Harmonization (ICH) Guidelines for Good Clinical Practices (GCP); and pertinent individual country/state/local laws and regulations.~An additional cohort of approximately 50 subjects will be enrolled at up to 6 study centers in Europe after enrollment in the main cohort is completed to assess center-driven implantation technique with the commercially available Lotus Valve with Depth Guard technology.
The purpose of the RESPOND post market study is to collect real world clinical and device performance outcomes data with the Lotus Valve System used in routine clinical practice to demonstrate that the commercially available Lotus Valve System is a safe and effective treatment for patients with severe calcific aortic stenosis.