Purple Book product · Reference 351(a)
Imfinzi
durvalumab
May 01, 2017
Approved
Reference 351(a)
License type
Rx
Marketing
None
Listed patents
Sourced from the FDA Purple Book · verified Jul 02, 2026
Key dates
Approval
Approval date of this BLA submission.
May 01, 2017
9 yr 4 mo ago
Today
Orphan exclusivity ends
7-year orphan-drug exclusivity window.
Dec 04, 2031
in 5 yr 6 mo
Pharmaceutical detail
Strength
120MG/2.4ML (50MG/ML)
Dosage form
Injection
Route
Intravenous
Presentation
Single-Dose Vial
Center
CDER
License number
2043
Product number
002
Submission type
Original
Supplement number
Not listed
Change type
Not listed
Reference product family
View full familyThis is the reference (originator) product. No biosimilars or interchangeables reference it in the Purple Book yet.
1 additional BLA record 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
- advanced-searchAdvanced Search · Jul 02, 2026
- monthly-downloadMonthly download · Jul 02, 2026
Change history
- v3Jul 02, 2026
- v2Jul 02, 2026
Frequently asked questions
Does Imfinzi have approved biosimilars?
No 351(k) biosimilars or interchangeable biosimilars referencing Imfinzi are listed in the FDA Purple Book yet.
What is Imfinzi's BLA number?
Imfinzi is licensed under BLA 761069, held by AstraZeneca UK Ltd.
When was Imfinzi approved by the FDA?
Imfinzi was approved by the FDA on May 01, 2017.
Related FDA reference tools
- FDA Orange BookApproved drugs, generics, therapeutic-equivalence codes, patents, and exclusivity.
- FDA BiosimilarsThe list of FDA-approved biosimilars and interchangeable biosimilars, by reference product.
- 510(k) Predicate DatabaseSearch FDA 510(k) clearances and map predicate-device lineage.
- FDA 483 & Inspection DatabaseFDA Form 483 observations and inspection records by firm, date, and citation.
