efgartigimod alfa-fcab (Vyvgart)
efgartigimod alfa-fcab is an FDA-licensed reference biologic from Argenx BV. Reference exclusivity, biosimilar lineage, and published patents from official FDA Purple Book records.
0
Biosimilars
0
Interchangeables
0
Listed patents
2021
Reference approved
Reference product
Vyvgart efgartigimod alfa-fcab
Argenx BV
- Approved
- Dec 17, 2021
- Marketing
- Rx
- Center
- CDER
- Patents
- None listed
Molecular structure
Experimental 3D structure for efgartigimod alfa-fcab from the RCSB Protein Data Bank (PDB 7Q3P).

Interactive biological assembly from PDB entry 7Q3P. Drag to rotate, scroll to zoom, and inspect the full atomic structure right here — no need to leave the page.
Exclusivity & patent cliffs
Approval, exclusivity, and published-patent expiration dates for efgartigimod alfa-fcab, in chronological order.
Reference approval
Approval date of the reference efgartigimod alfa-fcab product.
4 yr 8 mo ago
Orphan exclusivity ends
7-year orphan-drug exclusivity window.
in 2 yr 6 mo
Frequently asked questions
Are there biosimilars approved for efgartigimod alfa-fcab (Vyvgart)?
No 351(k) biosimilars or interchangeable biosimilars referencing efgartigimod alfa-fcab are listed in the FDA Purple Book yet.
Related FDA reference tools
- FDA Orange BookApproved drugs, generics, therapeutic-equivalence codes, patents, and exclusivity.
- FDA BiosimilarsThe list of FDA-approved biosimilars and interchangeable biosimilars, by reference product.
- 510(k) Predicate DatabaseSearch FDA 510(k) clearances and map predicate-device lineage.
- FDA 483 & Inspection DatabaseFDA Form 483 observations and inspection records by firm, date, and citation.
Explore the full FDA Purple Book
Search every FDA-licensed biologic, biosimilar, and interchangeable with exclusivity timelines and patent records.
