Developing a curative gene therapy for Crigler-Najjar syndrome.
The CureCN project has ended.

The European research project CureCN sought to develop a curative gene therapy against the ultra-rare Crigler-Najjar syndrome (CN). Crigler-Najjar is a life-threatening liver disease which affects one in a million individuals at birth. The goal of the CureCN consortium was thus to prove the safety and efficacy of an adeno-associated virus (AVV) gene therapy in a clinical trial and make it available to patients.

About Crigler-Najjar

The inherited Crigler-Najjar syndrome occurs directly after birth. It is caused by the deficiency of a liver-specific enzyme (uridine diphosphate Glucuronosyltransferase 1A1) that leads to the accumulation of toxic unconjugated bilirubin in all body tissues. Untreated, CN causes irreversible neurological damage in the brain and leads to death. The only curative treatment currently available is a liver transplant that implies high risks of complications.

Treatment with phototherapy – a treatment with blue light – reduces symptoms, but is very debilitating as it requires 10 to 14 hours therapy per day. Furthermore, it loses its efficiency over time so that all patients depend upon a liver transplant in the long term. On the other hand, phototherapy does not eliminate the risk of life-threatening spikes of bilirubin. The lack of a permanent curative treatment of CN results in a shortened life expectancy of the affected patients.

Main Goals within CureCN

Partners in CureCN were chosen for their complementary scientific excellence, technical expertise, and experience in translational research. Together, they took on the mission to find a curative treatment for CN syndrome. The project’s major goals were:

Another important goal was to establish the first global Crigler-Najjar patient registry. Overall, CureCN set out to provide better information for patients, families, healthcare providers and the general public about CN syndrome and existing treatments.

project leaflet

A leaflet summarizing the main details of the CureCN project is available for download in 3 languages:

English French Italian