ERDERA Call info Day - Resolving unsolved cases in rare genetic and non-genetic diseases

The European Rare Diseases Research Alliance (ERDERA) will launch its 2026 joint transnational call 'Resolving unsolved cases in rare genetic and non-genetic diseases' on 10 December 2025. The goal of this call is to solve Undiagnosed Rare Genetic diseases and to address complex, multifactorial Rare Non-Genetic diseases by identifying causative variants in patients with no molecular diagnosis after prior genetic or genomic testing and providing diagnostic clarity for conditions of unknown or mixed pathogenesis.

On 10 December 2025, ERDERA will launch its 2026 Joint Transnational Call, “Resolving unsolved cases in rare genetic and non‑genetic diseases”.

The call will welcome proposals focused on providing diagnostic clarity in unsolved rare genetic and non‑genetic diseases.

This call’s  pre‑announcement is available below, and it describes the forthcoming opportunity for multinational research teams to apply and will be updated with the full call when it launches.

An information webinar for potential applicants will take place on 16 December, 15:00–17:00 CET. Register for the webinar through this link.

Involving patient organisations from the very start is highly desirable. Should you need guidance about patient involvement in research, have a look at this guide.