Abstract: Rare diseases are frequently genetically determined and caused by an
inborn metabolic error, thus occurring early in life and affecting normal
growth, and sexual and CNS maturation. The development of a paediatric orphan
medicine presents a real hurdle for pharmaceutical companies because of the
nature of the patient population where little knowledge is available. In
addition, clinical trials are more difficult to run, take longer and cost more. An overview of the current situation in the paediatric orphan medicines field
in Europe is provided below through the identification of unmet therapeutic
needs still existing in the field (TEDDY NoE work), which represents a
description of the orphan drugs so far authorised in Europe and of the
paediatric drugs under development (Paediatric Investigation Plan – PIP).