CFR 21-316.23-2013 Food and drugs. Part316:Orphan drugs. Section316.23:Timing of requests for orphandrug designation; designation of already approved drugs.
(a) A sponsor may request orphandrug designation at any time in its drug development process prior to the time that sponsor submits a marketingapplication for the drug for the same rare disease or condition.
CFR 21-316.23-2013 history
2013CFR 21-316.23-2013 Food and drugs. Part316:Orphan drugs. Section316.23:Timing of requests for orphandrug designation; designation of already approved drugs.