Role of healthcare databases and registries for surveillance of orphan drugs in the real-world setting: the Italian case study.

Despite their considerable potential for rare disease research, the available Italian data sources are currently under-used and require further harmonization of data collection. The establishment of large structured and integrated nationwide data sources, tailored to respond to both research as well as regulatory requirements, is necessary to provide clinically useful information on orphan drugs as well. Such data sources should also be more accessible at the loco-regional, national and international level.