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FDA Purple Book · Reference family

interferon beta-1a (Avonex)

interferon beta-1a is an FDA-licensed reference biologic from Biogen Inc.. Reference exclusivity, biosimilar lineage, and published patents from official FDA Purple Book records.

0

Biosimilars

0

Interchangeables

0

Listed patents

1996

Reference approved

Reference product

351(a)BLA 103628

Avonex interferon beta-1a

Biogen Inc.

Approved
May 17, 1996
Marketing
Disc
Center
CDER
Patents
None listed

Exclusivity & patent cliffs

Approval, exclusivity, and published-patent expiration dates for interferon beta-1a, in chronological order.

  1. Reference approval

    Approval date of the reference interferon beta-1a product.

    30 yr 6 mo ago

  2. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    23 yr 5 mo ago

Frequently asked questions

Are there biosimilars approved for interferon beta-1a (Avonex)?

No 351(k) biosimilars or interchangeable biosimilars referencing interferon beta-1a are listed in the FDA Purple Book yet.

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