Under ERN-ITHACA’s umbrella, we plan to develop a single “meta-registry” (ILIAD) of patients with developmental anomalies (dysmorphic/multiple malformations syndromes and/or intellectual disability) recruited in ERN ITHACA, ,patients with several developmental disorders affecting the head recruited by ERN-CRANIO and connective tissue disorders recruited by ERN SKIN. ILIAD will register 3 types of patients: genetically-defined patients (patients must have a genetic/genomic diagnosis to be recorded), clinically defined patients (patients must have a precise clinical diagnosis with a disease-level ORPHA code), and undiagnosed patients. ILIAD will rely on the JRC common data element, enriched by ITHACA specific elements. Effort will also be done to connect ILIAD with external European registries, both professional-driven and patients-driven, and with biobanks.
ILIAD registry relies on 2 components: a central,web-based registry and a network of satellite/client registries linked to the central registry to form the ITHACA registry federation. ILIAD will be build with the existing software solutions from MOLGENIS open source project.. To support findability and interoperability of the ILIAD, the registry will be connected to the European Rare Disease Registry Infrastructure (ERDRI) provided by the JRC, by listing the ILIAD in the European Directory of Registries (ERDRI.dor), making the meta-data available in the Central Metadata Repository (ERDRI.mdr), and using the Pseudonymisation Tool (EUPID) to allow linking RD patients cohorts. In addition, all data will be modelled adhering to international interoperability standards and building on FAIR systems as developed in and coordinated by EJP-RD, Global Alliance for Genomics and Health and Solve-RD, and more generally, Biobanking and Biomolecular Resources Research Infrastructure - European Research Infrastructure Consortium and the European Life-sciences Infrastructure for biological Information.

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