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Purple Book product · Reference 351(a)

ryoncil

remestemcel-L-rknd

351(a)BLA 125706RxLicensed Mesoblast, Inc.

Dec 18, 2024

Approved

Reference 351(a)

License type

Rx

Marketing

None

Listed patents

ryoncil (remestemcel-L-rknd) is Mesoblast, Inc.'s FDA-licensed reference biologic, approved under a 351(a) BLA in 2024. No biosimilars referencing ryoncil are listed in the Purple Book yet.

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

Key dates

  1. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    Dec 18, 1931

    96 yr ago

  2. First licensure

    Date the BLA was first licensed.

    Dec 18, 2024

    1 yr 7 mo ago

  3. Approval

    Approval date of this BLA submission.

    Dec 18, 2024

    1 yr 7 mo ago

  4. Today

Pharmaceutical detail

Strength

6.68X10^CELL/ML

Dosage form

Suspension

Route

Intravenous

Presentation

Single-Dose Vial

Center

CBER

License number

2140

Product number

001

Submission type

Original

Supplement number

0

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

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

Frequently asked questions

Does ryoncil have approved biosimilars?

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

What is ryoncil's BLA number?

ryoncil is licensed under BLA 125706, held by Mesoblast, Inc..

When was ryoncil approved by the FDA?

ryoncil was first licensed by the FDA on Dec 18, 2024.

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