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Purple Book product · Reference 351(a)

Fasenra

benralizumab

351(a)BLA 761070RxLicensed AstraZeneca AB

Oct 03, 2019

Approved

Reference 351(a)

License type

Rx

Marketing

None

Listed patents

Fasenra (benralizumab) is AstraZeneca AB's FDA-licensed reference biologic, approved under a 351(a) BLA in 2019. No biosimilars referencing Fasenra are listed in the Purple Book yet.

Sourced from the FDA Purple Book · verified Jul 02, 2026

Key dates

  1. Approval

    Approval date of this BLA submission.

    Oct 03, 2019

    6 yr 11 mo ago

  2. Today

  3. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    Sep 17, 2031

    in 5 yr 3 mo

Pharmaceutical detail

Strength

30MG/ML

Dosage form

Injection

Route

Subcutaneous

Presentation

Autoinjector

Center

CDER

License number

2059

Product number

002

Submission type

Supplement

Supplement number

5

Change type

Not listed

Reference product family

View full family

This is the reference (originator) product. No biosimilars or interchangeables reference it in the Purple Book yet.

2 additional BLA records for this product (other strengths or presentations) are in the same reference family.

Patent list

No patent-list records were published for this product. The Purple Book patent list reflects the statutory patent exchange under the BPCIA and is not exhaustive.

Source provenance

Source kind · Advanced Search
Checked Jul 02, 2026
  • advanced-searchAdvanced Search · Jul 02, 2026
  • monthly-downloadMonthly download · Jul 02, 2026

Change history

  • v4Jul 02, 2026
  • v3Jul 02, 2026
  • v2Jul 02, 2026

Frequently asked questions

Does Fasenra have approved biosimilars?

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

What is Fasenra's BLA number?

Fasenra is licensed under BLA 761070, held by AstraZeneca AB.

When was Fasenra approved by the FDA?

Fasenra was approved by the FDA on Oct 03, 2019.

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