It is with great sadness that we share the news of the passing of Prof. Juliane Léger on 27 September 2025, at the age of 71.
Prof. Léger was a distinguished pediatric endocrinologist-diabetologist at Hôpital Robert-Debré (AP-HP, Paris) and an important contributor to the foundation of Endo-ERN.

Throughout her career, she made outstanding contributions to the field of pediatric endocrinology, particularly in the areas of congenital hypothyroidism, growth disorders, and rare endocrine diseases. As coordinator of the French reference centre CRESCENDO, she played a leading role in advancing care, research, and collaboration for children with rare endocrine conditions.

Prof. Léger was also a dedicated mentor and educator, training generations of clinicians and researchers across Europe and beyond. Her expertise, kindness, and collaborative spirit greatly enriched the Endo-ERN community.

She will be remembered with deep respect and gratitude for her scientific achievements and her lasting impact on the rare endocrine disease network.