EMPIRE-NVT ALLEGRA THV System with a new delivery system
Research type
Research Study
Full title
InvEstigation of the safety and perforMance of the NVT ALLEGRA THV System with a new delivery system in Patients with severe calcified aortIc stenosis or failed suRgical aortic bioprosthEsis (EMPIRE)
IRAS ID
319703
Contact name
David Andrew Smith
Contact email
Sponsor organisation
NVT GmbH
Clinicaltrials.gov Identifier
Clinicaltrials.gov Identifier
CIV-22-07-039967, CIV-ID
Duration of Study in the UK
1 years, 8 months, 0 days
Research summary
The ALLEGRA THV System is designed to replace a severely stenotic calcified native aortic heart valve without open heart surgery. It can also be used to replace failing surgical bioprosthetic aortic heart valve without concomitant surgical removal of the failing valve.
It consists of:
1. ALLEGRA Transcatheter Heart Valve (THV), made of a self-expandable nitinol stent and bovine pericardium, available in 3 size configurations (ALLEGRA 23/27/31). The ALLEGRA THV is available on the market in Europe.
2. IMPERIA Delivery System that allows re-sheathing and re-positioning of the ALLEGRA THV.REC name
South East Scotland REC 02
REC reference
23/SS/0013
Date of REC Opinion
8 Mar 2023
REC opinion
Further Information Favourable Opinion