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Purple Book product · Reference 351(a)

Campath

alemtuzumab

351(a)BLA 103948RxLicensed Genzyme Corporation

Oct 12, 2004

Approved

Reference 351(a)

License type

Rx

Marketing

None

Listed patents

Campath (alemtuzumab) is Genzyme Corporation's FDA-licensed reference biologic, approved under a 351(a) BLA in 2004. 1 approved follow-on biologic reference Campath (Lemtrada).

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

Key dates

  1. Approval

    Approval date of this BLA submission.

    Oct 12, 2004

    22 yr 1 mo ago

  2. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    May 07, 2008

    18 yr 6 mo ago

  3. Today

Pharmaceutical detail

Strength

30MG/1ML

Dosage form

Injection

Route

Intravenous

Presentation

Single-Dose Vial

Center

CDER

License number

1596

Product number

003

Submission type

Supplement

Supplement number

5034

Change type

Not listed

Reference product family

View full family

This is the reference (originator) product. Its approved biosimilars and interchangeables are listed below.

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

Source kind · Advanced Search
Checked Jul 02, 2026
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Change history

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

Frequently asked questions

Does Campath have approved biosimilars?

Yes. 1 approved follow-on biologic reference Campath in the Purple Book: Lemtrada.

What is Campath's BLA number?

Campath is licensed under BLA 103948, held by Genzyme Corporation.

When was Campath approved by the FDA?

Campath was approved by the FDA on Oct 12, 2004.

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