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anifrolumab-fnia (Saphnelo)

anifrolumab-fnia is an FDA-licensed reference biologic from AstraZeneca AB. Reference exclusivity, biosimilar lineage, and published patents from official FDA Purple Book records.

0

Biosimilars

0

Interchangeables

0

Listed patents

2026

Reference approved

Reference product

351(a)BLA 761451

Saphnelo anifrolumab-fnia

AstraZeneca AB

Approved
Apr 24, 2026
Marketing
Rx
Center
CDER
Patents
None listed

Molecular structure

Experimental 3D structure for anifrolumab-fnia from the RCSB Protein Data Bank (PDB 4QXG).

3D molecular structure of anifrolumab-fnia (PDB entry 4QXG)

Interactive biological assembly from PDB entry 4QXG. Drag to rotate, scroll to zoom, and inspect the full atomic structure right here โ€” no need to leave the page.

Exclusivity & patent cliffs

Approval, exclusivity, and published-patent expiration dates for anifrolumab-fnia, in chronological order.

  1. Reference approval

    Approval date of the reference anifrolumab-fnia product.

    2 mo ago

Frequently asked questions

Are there biosimilars approved for anifrolumab-fnia (Saphnelo)?

No 351(k) biosimilars or interchangeable biosimilars referencing anifrolumab-fnia are listed in the FDA Purple Book yet.

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