Affiliations: Amgen International Regulatory Affairs, Cambridge,
UK. E-mail: chwalker@amgen.com
Abstract: Orphan legislation provides incentives to industry to investigate
rare conditions that otherwise would be unlikely to be investigated. These
incentives include, free access to scientific advice during the development of
their clinical programs ('protocol assistance'); reduction in fees payable to
EMA for review of the marketing authorisation and subsequent licence
maintenance fees; sustained market protection in the form of market exclusivity
in addition to a range of national incentives. To qualify for these incentives
companies must apply for orphan designation confirming the seriousness of the
condition which has inadequate alternative therapeutic options (for the
diagnosis, prevention or treatment) and that the condition qualifies in terms
of low prevalence in the European community. The company must also provide
evidence of medical plausibility including likely significant medical benefit
for patients to be treated with the product for the proposed orphan indication.
If an application for orphan designation is not accepted then a company is able
to appeal providing detailed grounds for reassessment and will receive a second
opinion from the PDCO. The period of market exclusivity awarded by orphan
designation will require that future applications received by the EMA for the
same condition have to undergo an assessment of similarity to ensure that no
variations or new applications for 'similar' medicinal products are granted
licences during this ten year period. Products gaining orphan designation
provide regular/annual reports regarding their development status, status of
global regulatory submissions and any change likely financial returns predicted
for the indication.