EMA has launched an initiative on patient registries aimed at making better use of existing registries as a source of high-quality post-authorization data for regulatory decision-making, and to facilitate the establishment of new registries if needed. Registries collect information over time on patients who are diagnosed with a particular disease or who receive particular treatment. The patient registry initiative will explore ways of dealing with current challenges faced by companies and regulators in using existing registries and establishing new registries if needed.

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