21 C.F.R. § 316.31 Scope of orphan-drug exclusive approval.
Title 21 - Food and Drugs
(a) After approval of a sponsor's marketing application for a designated orphan-drug product for treatment of the rare disease or condition concerning which orphan-drug designation was granted, FDA will not approve another sponsor's marketing application for the same drug before the expiration of 7 years from the date of such approval as stated in the approval letter from FDA, except that such a marketing application can be approved sooner if, and such time as, any of the following occurs: (1) Withdrawal of exclusive approval or revocation of orphan-drug designation by FDA under any provision of this part; or (2) Withdrawal for any reason of the marketing application for the drug in question; or (3) Consent by the holder of exclusive approval to permit another marketing application to gain approval; or (4) Failure of the holder of exclusive approval to assure a sufficient quantity of the drug under section 527 of the act and §316.36. (b) If a sponsor's marketing application for a drug product is determined not to be approvable because approval is barred under section 527 of the act until the expiration of the period of exclusive marketing of another drug product, FDA will so notify the sponsor in writing.
Title 21: Food and Drugs
PART 316—ORPHAN DRUGS
Subpart D—Orphan-drug Exclusive Approval
§ 316.31 Scope of orphan-drug exclusive approval.
