Rare diseases are defined as diseases that affect not more than 1 person per 2000 in the European population. While individual rare diseases affect only a small percentage of the population, they collectively affect up to 30 million people in the EU. To facilitate access to high quality cross-border healthcare and promote and foster cooperation on rare disease healthcare between member states, 24 European Reference Networks (ERN) are currently active. The aim of the ERICA consortium, in which all 24 ERNs take part, is to build on the strength of the individual ERNs and create a platform that integrates all ERN’s research and innovation capacity. Through knowledge sharing, engagement with stakeholders in the rare disease domain and assembly of transdisciplinary research groups working across the global health spectrum ERICA strives to reach the following goals: • new intra- and inter-ERN rare disease competitive networks; • effective data collection strategies; • better patient involvement; • enhanced quality and impact of clinical trials; • increased awareness of ERN’s innovation potential; Through integration of ERN research activities, outreach to European research infrastructures to synergistically increase impact and innovation ERICA will strengthen the research and innovation capacity of the ERNs. This will result in safe, accessible and efficient access of therapies for the benefit of patients suffering from rare diseases and conditions.

As recognized by the Council Recommendation 2009/C 151/02, rare diseases (RD) are a prime example of a research area that can strongly profit from coordination on a European and international scale. RD research should be improved to overcome fragmentation, leading to efficacious use of data and resources, faster scientific progress and competitiveness, and most importantly to decrease unnecessary hardship and prolonged suffering of RD patients. In the specific context of the massive generation, need for reuse and efficient interpretation of data, introduction of omics into care practice and the structuration of RD care centers in European Reference Networks, it appears crucial and timely to maximize the potential of already funded tools and programmes by supporting them further, scaling up, linking, and most importantly, adapting them to the needs of end-users through implementation tests in real settings. Such a concerted effort is necessary to develop a sustainable ecosystem allowing a virtuous circle between RD care, research and medical innovation. To achieve this goal, the European Joint Programme on RD (EJP RD) has two major objectives: (i) To improve the integration, the efficacy, the production and the social impact of research on RD through the development, demonstration and promotion of Europe/world-wide sharing of research and clinical data, materials, processes, knowledge and know-how; (ii) To implement and further develop an efficient model of financial support for all types of research on RD (fundamental, clinical, epidemiological, social, economic, health service) coupled with accelerated exploitation of research results for benefit of patients. To this end, the EJP RD actions will be organized within four major Pillars assisted by the central coordination: (P1): Funding of research; (P2): Coordinated access to data and services; (P3) Capacity building; (P4): Accelerated translation of research projects and improvement outcomes of clinical studies.