Clinical endpoints special session, ISCEV 2025, Utrecht.

This report summarises the Clinical Endpoints Special Session held during the 62nd annual symposium of the International Society for Clinical Electrophysiology of Vision (ISCEV), convened at Tivoli Vredenburg, Utrecht, The Netherlands. The session brought together clinicians, regulators, industry representatives, and a patient voice to consider the state of clinical endpoints in trials for inherited retinal disorders (IRDs). Discussions covered the adequacy of current endpoints, challenges of disease heterogeneity, regulatory expectations, operational feasibility, and the perspectives of patients. The session highlighted the need to anchor emerging endpoints to clinically meaningful outcomes and to minimise assessment burdens.