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FDA Purple Book · Reference family

rasburicase (Elitek)

rasburicase is an FDA-licensed reference biologic from Sanofi-Aventis U.S. LLC. Reference exclusivity, biosimilar lineage, and published patents from official FDA Purple Book records.

0

Biosimilars

0

Interchangeables

0

Listed patents

2006

Reference approved

Reference product

351(a)BLA 103946

Elitek rasburicase

Sanofi-Aventis U.S. LLC

Approved
Jan 06, 2006
Marketing
Rx
Center
CDER
Patents
None listed

Molecular structure

Experimental 3D structure for rasburicase from the RCSB Protein Data Bank (PDB 9QW5).

3D molecular structure of rasburicase (PDB entry 9QW5)

Interactive biological assembly from PDB entry 9QW5. 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 rasburicase, in chronological order.

  1. Reference approval

    Approval date of the reference rasburicase product.

    20 yr 10 mo ago

  2. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    17 yr 3 mo ago

Frequently asked questions

Are there biosimilars approved for rasburicase (Elitek)?

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

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