BLA number
103234
epoetin alfa
Procrit, BLA 103234, is listed in the FDA Purple Book as a 351(a) reference biologic. This page consolidates 1 exact FDA presentation row, and 1 FDA rows name-link 351(k) follow-on products to its reference family. It separates the BLA applicant from any unverified manufacturer and does not infer clinical labeling, pharmacy substitution, commercial availability, or patent conclusions.
Sourced from the FDA Purple Book · verified Oct 08, 2026
BLA number
103234
Regulatory role
351(a) reference biologic
Applicant
Amgen Inc.
Applicant is not automatically the physical manufacturer.
Presentations
1
Exact FDA presentation rows under this BLA.
Approval
Not listed
Follow-on biologics
1
Procrit is a 351(a) reference biologic supported by exact-BLA evidence.
1 distinct licensed follow-on biologic in the loaded Purple Book data name Procrit as their reference product; exact-BLA patent or exclusivity fields, or an unambiguous single-BLA name match, support this page's role.
Substitution boundary
Substitution status belongs to an individual follow-on product; it cannot be inferred from the reference product alone.
Orphan exclusivity ends
7-year orphan-drug exclusivity window.
Dec 31, 1997
29 yr 2 mo ago
Today
Strength
40,000UNITS/ML
Dosage form
Injection
Route
Intravenous, Subcutaneous
Presentation
Single-Dose Vial
Center
CDER
License number
1080
Product number
006
Submission type
Supplement
Supplement number
Not listed
Change type
Not listed
One row per FDA presentation under this exact BLA. Missing cells remain unavailable rather than being borrowed from another product.
| Product | Strength | Dosage form | Route | Presentation | Licensure | Marketing |
|---|---|---|---|---|---|---|
| 006 | 40,000UNITS/ML | Injection | Intravenous, Subcutaneous | Single-Dose Vial | Licensed | Rx |
The rows above are this brand's presentations. FDA also lists the brand below on this BLA, each with its own presentation rows. Strength and reference product come from each brand's own rows; a shared BLA does not establish shared presentations, approved uses, or substitutability.
Current product label
Candidate awaiting exact-BLA match
FDA exposes a label link on this Purple Book row, but labeling content remains unavailable until the document is independently matched to this exact BLA and its presentations.
Inspect FDA label candidateFDA approval evidence
Not applicable to 351(a)
A biosimilar totality-of-evidence summary is not applicable to this 351(a) record. Product-specific clinical content still requires an exact-BLA label or review source.
Human review pending
Automated BLA-level interpretation has not been marked human-reviewed. The research queue contains 1 exact-source task. Labeling and approval-review claims stay unavailable until their own match gate passes.
1 distinct 351(k) follow-on biologic are linked through FDA-stated reference names to Procrit; 0 are designated interchangeable and 1 has a licensed status in the loaded snapshot.
Exact-BLA patent, exclusivity, or unambiguous linked-family evidence supports this page's reference role. Name-linked licensed biosimilars and interchangeables are listed below.
| Product | Designation | BLA | Approved | Presentation | Marketing |
|---|---|---|---|---|---|
| Procritepoetin alfa | 351(a) reference biologic | 103234 | Not listed | 40,000UNITS/ML · Intravenous, Subcutaneous | Rx |
| Retacritepoetin alfa-epbx | 351(k) biosimilar | 125545 | May 15, 2018 | 2,000UNITS/ML · Intravenous, Subcutaneous | Rx |
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.
1 exact FDA presentation row is consolidated under this BLA rather than split across duplicate pages.
The loaded rows list Intravenous, Subcutaneous and Injection; these are regulatory presentation fields, not dosing instructions.
Amgen Inc. is the listed BLA applicant. The page does not relabel the applicant as manufacturer, labeler, distributor, or commercial supplier without an exact product-specific source.
Procrit is a 351(a) reference biologic supported by exact-BLA evidence. Family comparisons preserve each BLA's own designation and do not use Orange Book therapeutic-equivalence terminology.
Licensure, biosimilar status, exclusivity, and patents for this biologic, from the FDA Purple Book.
Built directly from the FDA Purple Book database of licensed biological products. License types, approval and exclusivity dates, and the patent list match the official FDA record. The Purple Book patent list reflects the statutory BPCIA patent exchange and is not exhaustive.

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