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Prescription medicine

Tagraxofusp

Drug class: CD123 Interaction, Cytotoxin

The FDA’s “Established Pharmacologic Class”: the group of medicines that work in a similar way.

Official FDA data, not advice

Everything here comes from the U.S. Food and Drug Administration (FDA): the drug label, the NDC Directory, Drugs@FDA, recall reports and the drug shortage list. Each fact shows its source and date.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

In an emergency, call 911. If someone may have taken too much of a medicine, call Poison Help: 1‑800‑222‑1222.

Quick answers

What is Tagraxofusp used for?
The FDA-approved label (Elzonris, Stemline Therapeutics, Inc., December 9, 2024) says: “ELZONRIS is indicated for the treatment of blastic plasmacytoid dendritic cell neoplasm (BPDCN) in adults and in pediatric patients 2 years and older. ELZONRIS is a CD123-directed cytotoxin indicated for the treatment of blastic plasmacytoid dendritic cell neoplasm (BPDCN) in adults and in pediatric patients 2 years and older” This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.
Does Tagraxofusp have a boxed warning?
Yes. The FDA label for Elzonris has a boxed warning (“WARNING: CAPILLARY LEAK SYNDROME”), the FDA’s strongest warning. Read it on the full label and ask your pharmacist.
Is there a shortage of Tagraxofusp?
No current shortage is listed by the FDA for the products of this medicine (FDA data from October 30, 2026).
Has Tagraxofusp been recalled?
No recall linked to the products of this medicine appears in the FDA enforcement reports we use.
Who makes Tagraxofusp?
1 company lists prescription products of Tagraxofusp in the FDA NDC Directory, including Stemline Therapeutics, Inc..

What Tagraxofusp is used for

Quoted from the “Indications and Usage” section of the FDA-approved label.

ELZONRIS is indicated for the treatment of blastic plasmacytoid dendritic cell neoplasm (BPDCN) in adults and in pediatric patients 2 years and older. ELZONRIS is a CD123-directed cytotoxin indicated for the treatment of blastic plasmacytoid dendritic cell neoplasm (BPDCN) in adults and in pediatric patients 2 years and older

— FDA label: Elzonris, Stemline Therapeutics, Inc., effective December 9, 2024. Read the full label on DailyMed →

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

Boxed warning

A boxed warning (“black box”) is the FDA’s strongest warning on a drug label, for serious or life-threatening risks.

This label has a boxed warning. Its heading: WARNING: CAPILLARY LEAK SYNDROME. Read it on the full label →

Forms and how it is given

Dosage formsInjection, solution
RouteIntravenous
Prescription products1 in the FDA NDC Directory
Brand namesElzonris

Companies that list this medicine

Labelers in the FDA NDC Directory: the company named on the package (maker or distributor), with the number of prescription products.

FDA approval history

  • BLA: Biologics License Application: how a biologic medicine (made from living cells) is approved.
Brand and biologic applications
ApplicationSponsorApprovedLater changes approved
BLA761116
ELZONRIS
Stemline Therapeutics IncDecember 21, 2018 3, latest July 26, 2023
2023: Labeling · 2022: Labeling · 2022: Efficacy

Shortage status

The FDA drug shortage list does not show these products.

FDA Drug Shortages database →

Recalls

No recall linked to these products (by their NDC code) appears in the FDA enforcement reports.

Official identifiers

RxCUI (RxNorm)2109059, 2109064
SPL set ID of the quoted label80eb1080-fe20-4af0-b2a5-a67999923fa8
FDA labels (SPL)1
FDA applicationsBLA761116
Active ingredients (FDA)TAGRAXOFUSP

Sources

  1. FDA-approved label on DailyMed (National Library of Medicine) — Elzonris, Stemline Therapeutics, Inc., effective December 9, 2024; via openFDA, FDA data exported October 30, 2026, retrieved October 31, 2026
  2. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  5. Drug shortages (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026

openFDA data is provided by the FDA as is; it may be incomplete. Always rely on the label that comes with your medicine. FDA Enforcement Report search →

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