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During the 14-year period 2000-2013, 86 orphan drugs were approved in the U.S., up from 65 during the prior 18-year period 1983-2000, while in Europe 96 orphan drugs were approved in 2000-2013, more than double the 44 approved in the earlier period, according to Tufts CSDD.
Orphan drugs are those developed for rare diseases and conditions that affect fewer than 200,000 people in the U.S., or five per 10,000 or fewer people in the European Union.
Among the challenges that limit patient access to orphan drugs in the U.S., relative to Europe, is higher cost-sharing by patients, which can lead to increased levels of non-compliance, according to Joshua Cohen, Assistant Professor at Tufts CSDD, who conducted the analysis.
"The encouraging news is that more orphan drugs are in development today than ever before, with more getting marketing approval-in 2013 alone, nine orphan drugs were approved in the U.S., the most in a single year. But the high cost of these medicines is leading insurers to reassess their reimbursement policies, which likely will mean more out-of-pocket costs for patients," Cohen said.
The most expensive orphan drugs can cost more than half a million dollars per year per patient in the U.S.
Key findings from the study, reported in the July/August Tufts CSDD Impact Report, released today, include the following: