On January 24, 2023, FDA published a notice in the Federal Register entitled, “Clarification of Orphan-Drug Exclusivity Following Catalyst Pharms., Inc. v. Becerra.”[1] In brief, the Catalyst decision by the 11th Circuit Court of Appeals[2] concerned FDA’s application of the Orphan Drug Act (21 USC 360cc(a)), and in particular the extent of the 7-year orphan drug market exclusivity (ODE) provided with an orphan drug’s approval. The ODE, per the Orphan Drug Act prevents FDA from approving another applicant’s same drug for “the same disease or condition.”
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