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FDA Purple Book · Reference family

ecallantide (Kalbitor)

ecallantide is an FDA-licensed reference biologic from Takeda Pharmaceuticals U.S.A., Inc.. Reference exclusivity, biosimilar lineage, and published patents from official FDA Purple Book records.

0

Biosimilars

0

Interchangeables

0

Listed patents

2009

Reference approved

Reference product

351(a)BLA 125277

Kalbitor ecallantide

Takeda Pharmaceuticals U.S.A., Inc.

Approved
Dec 01, 2009
Marketing
Rx
Center
CDER
Patents
None listed

Exclusivity & patent cliffs

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

  1. Reference approval

    Approval date of the reference ecallantide product.

    16 yr 9 mo ago

  2. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    5 yr 3 mo ago

Frequently asked questions

Are there biosimilars approved for ecallantide (Kalbitor)?

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

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