October 4, 2016 — Xeltis recently announced that three pediatric patients have been successfully implanted with the world’s first heart valve enabling cardiovascular restoration. The children have been enrolled in the “Xplore-I” clinical study of the Xeltis bioabsorbable pulmonary heart valve, a multi-centered feasibility trial currently enrolling pediatric patients from 2 to 21 years of age in leading heart centers in Europe.
The primary objective of the Xplore-I clinical feasibility study is to assess the survival rate of patients undergoing right ventricular outflow tract (RVOT) reconstruction at six months following implantation of the bioabsorbable heart valve. RVOT reconstruction is an open-heart surgery often involving pulmonary heart valve replacement. It is normally performed in children born with congenital heart defects. The first three trial implants have been conducted at Gottsegen György Hungarian Institute of Cardiology’s Pediatric Cardiac Centre in Budapest (Hungary) and University Children’s Hospital in Krakow (Poland).
VIDEO: How the Xeltis Bioresorbable Pulmonary Valve Works
“The Xplore-I patients are doing well and have been discharged from hospital,” said Zsolt Prodan, M.D., head of congenital heart surgery at Paediatric Cardiac Centre in Budapest, who performed the first two interventions in July. “The bioabsorbable implant is performing according to expectations,” he added.
Prodan presented trial details at the 30th Annual Meeting of the European Association of Cardio-Thoracic Surgery (EACTS), Oct. 1-5 in Barcelona, Spain.
"Reconstruction and replacement of diseased heart valves in children using patients’ own tissue could help reduce the risk of complications and of re-interventions observed with animal and human donor implants,” stated Thierry Carrel, M.D., principal investigator of the ‘Xplore-I’ study, and professor of surgery at the Clinic for Cardiovascular Surgery, University Hospital Bern (Switzerland). “We are quite confident regarding this technology, since children from the precursor feasibility study on bio-absorbable blood vessels demonstrate excellent results over two years after implantation,” he continued.
The Xeltis bioabsorbable heart valve employs a technique known as endogenous tissue restoration (ETR). ETR is a novel therapeutic approach in cardiovascular regenerative medicine enabling the restoration within the body of complex cardiac parts with patient’s own tissue. The porous structure of a Xeltis bioabsorbable heart valve enables cardiovascular restoration by harnessing the body’s natural healing process to pervade it with new healthy tissue once implanted. As a new healthy heart valve or blood vessel made of patient’s own tissue forms around the structure of the implant and takes over functionality, the implanted valve gets absorbed in the body.
For more information: www.xeltis.com
November 14, 2025 
