New heart valve shows promise in tight aortic stenosis
Disease control
Completed
This study tested a new device called the ALLEGRA THV System with a new delivery system (IMPERIA) in 137 people with severe calcified aortic stenosis or a failed surgical valve. The main goal was to see if the valve worked well and was safe 7 days after the procedure. The study c…
Phase: NA • Sponsor: NVT GmbH • Aim: Disease control
Last updated Jun 27, 2026 09:07 UTC