Assyro AI

Purple Book product · Reference 351(a)

Adcetris

brentuximab vedotin

351(a)BLA 125388RxLicensed Seagen Inc.

Aug 19, 2011

Approved

Reference 351(a)

License type

Rx

Marketing

None

Listed patents

Adcetris (brentuximab vedotin) is Seagen Inc.'s FDA-licensed reference biologic, approved under a 351(a) BLA in 2011. No biosimilars referencing Adcetris 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.

    Aug 19, 2011

    15 yr 2 mo ago

  2. Today

  3. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    Nov 10, 2029

    in 3 yr 4 mo

Pharmaceutical detail

Strength

50MG

Dosage form

For Injection

Route

Intravenous

Presentation

Single-Dose Vial

Center

CDER

License number

2257

Product number

001

Submission type

Original

Supplement number

Not listed

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.

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

  • v3Jul 02, 2026
  • v2Jul 02, 2026

Frequently asked questions

Does Adcetris have approved biosimilars?

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

What is Adcetris's BLA number?

Adcetris is licensed under BLA 125388, held by Seagen Inc..

When was Adcetris approved by the FDA?

Adcetris was approved by the FDA on Aug 19, 2011.

Related FDA reference tools

Agent CTA Background

Your Next Submission Could Take 6+ Fewer Weeks and Cost $250K Less.