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FDA Purple Book · Reference family

asfotase alfa (Strensiq)

asfotase alfa is an FDA-licensed reference biologic from Alexion Pharmaceuticals, Inc.. Reference exclusivity, biosimilar lineage, and published patents from official FDA Purple Book records.

0

Biosimilars

0

Interchangeables

0

Listed patents

2015

Reference approved

Reference product

351(a)BLA 125513

Strensiq asfotase alfa

Alexion Pharmaceuticals, Inc.

Approved
Oct 23, 2015
Marketing
Rx
Center
CDER
Patents
None listed

Exclusivity & patent cliffs

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

  1. Reference approval

    Approval date of the reference asfotase alfa product.

    10 yr 9 mo ago

  2. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    3 yr 8 mo ago

Frequently asked questions

Are there biosimilars approved for asfotase alfa (Strensiq)?

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

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