Purple Book reference family · 351(a) biologic
interferon alfacon-1 (Infergen)
interferon alfacon-1 is an FDA-licensed reference biologic from Kadmon Pharmaceuticals LLC.
351(a) biologicBLA 103663 Kadmon Pharmaceuticals LLC
Biosimilars
0
Interchangeables
0
Listed patents
0
Reference approved
1997
Reference product
Originator biologic
351(a)BLA 103663
Infergen interferon alfacon-1
Kadmon Pharmaceuticals LLC
View full reference-product record- Approved
- Marketing
- Disc
- Center
- CDER
- Patents
- None listed
Exclusivity & patent cliffs
Protection horizon
Reference approval
Approval date of the reference interferon alfacon-1 product.
29 yr 3 mo ago
interferon alfacon-1: frequently asked questions
Reference exclusivity, biosimilars, interchangeability, and patents for this molecule, from the FDA Purple Book.
Built from official FDA Purple Book records (monthly downloads, the Advanced Search interface, and the published Patent List), with reference-product, license-type, and exclusivity context for interferon alfacon-1.
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- 510(k) Predicate DatabaseSearch FDA 510(k) clearances and map predicate-device lineage.
- FDA 483 DatabaseFDA Form 483 observations and inspection records by firm, date, and citation.

