TheraRadar
Data updated: May 26, 2026

XOSPATA (gilteritinib fumarate)

Genetically Validated Trial Activity: Growth 2 active trials
Orphan Drug Priority Review Fast Track
Oncology Approved 2018-11-28

Xospata treats adults with acute myeloid leukemia (AML) that has either returned or failed to respond to previous treatments. It helps patients whose cancer cells carry a specific genetic change known as a FLT3 mutation. This medication is used when a diagnostic test confirms the presence of this mutation in the patient's leukemic cells.

Source: FDA Label • ASTELLAS

How XOSPATA Works

This drug works by blocking the activity of several proteins called receptor tyrosine kinases, specifically targeting the FLT3 receptor. By inhibiting these signals, it stops the growth and spread of leukemia cells and triggers programmed cell death. This process is effective against various forms of the mutation, including FLT3-ITD and tyrosine kinase domain mutations.

Development Insights

Children's Oncology Group conducting 1 trials (33%)
7 indications explored (Moderate)
acute myeloid leukemia (1 trials)
aml, adult (1 trials)
refractory aml (1 trials)
2
Indications
--
Phase 3 Trials
2
Priority Reviews
7
Years on Market

Details

Status
Prescription
First Approved
2018-11-28
Patent Cliff
2036

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Patent cliff and revenue data

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Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: GILTERITINIB FUMARATE

XOSPATA Approval History

2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
3 FDA actions from 2018 to 2022 · 1 indication expansions
Jan 2022 SUPPL
Label · Labeling
May 2019 SUPPL Priority
Efficacy
Nov 2018 ORIGINAL Priority
New Drug · Type 1 - New Molecular Entity

What XOSPATA Treats

1 indications

XOSPATA is approved for 1 conditions since its original approval in 2018. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Acute Myeloid Leukemia
Source: FDA Label

XOSPATA Boxed Warning

DIFFERENTIATION SYNDROME Patients treated with XOSPATA have experienced symptoms of differentiation syndrome, which can be fatal or life-threatening if not treated. Symptoms may include fever, dyspnea, hypoxia, pulmonary infiltrates, pleural or pericardial effusions, rapid weight gain or peripheral edema, hypotension, or renal dysfunction. If differentiation syndrome is suspected, initiate corticosteroid therapy and hemodynamic monitoring until symptom resolution [see Warnings and Precautions ( ...

XOSPATA Target & Pathway

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Target

FLT3 (FMS-Like Tyrosine Kinase 3) Receptor Tyrosine Kinase

XOSPATA Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

What's emerging in XOSPATA's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications XOSPATA treats. First-in-class if their pivotal trials read out positive.

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Clinical Trial Registry

3 trials
Trial Sponsor ID Phase Status Title
NCT04293562 AAML1831 NCI-2020-00546, AAML1831 Ph 3 recruiting A Study to Compare Standard Chemotherapy to Therapy With CPX-351 and/or Gilteritinib for Patients With Newly Diagnosed AML With or Without FLT3 Mutations
NCT06022003 OGILAR FILOAML-RR-01 OGILAR 2022-501372-25-00 Ph 2 recruiting Study Investigating the Efficacy and Safety of the Addition of Oral-azacitidine to Salvage Treatment by Gilteritinib in Subjects ≥18 Years of Age With Relapsed/Refractory FLT3-mutated Acute Myeloid Leukemia
NCT04655391 20456 NCI-2020-10595, 20456 Ph 1 withdrawn Glasdegib-Based Treatment Combinations for the Treatment of Patients With Relapsed Acute Myeloid Leukemia Who Have Undergone Hematopoietic Cell Transplantation
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

XOSPATA FDA Label Details

Indications & Usage

FDA Label (PDF)

XOSPATA is indicated for the treatment of Acute Myeloid Leukemia.

⚠️ BOXED WARNING

WARNING: DIFFERENTIATION SYNDROME Patients treated with XOSPATA have experienced symptoms of differentiation syndrome, which can be fatal or life-threatening if not treated. Symptoms may include fever, dyspnea, hypoxia, pulmonary infiltrates, pleural or pericardial effusions, rapid weight gain or pe...

View full patent landscape →
8 OB patents · 2 families · 120 international docs across 32 countries

XOSPATA Patents & Exclusivity

Latest Patent: Jul 2036

Patents (8 active)

US11938133 Expires Jul 1, 2036
US11944620 Expires Jul 1, 2036
US11938130 Expires Jul 1, 2036
US10786500 Expires Jul 1, 2036
US11938131 Expires Jul 1, 2036
US11938132 Expires Jul 1, 2036
US8969336 Expires Nov 28, 2032
US9487491 Expires Jul 28, 2030
Source: FDA Orange Book

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Deep insights for XOSPATA

Revenue Insights

  • Quarterly revenue tracking
  • Historical trend analysis

Patent Timeline

  • Cliff: 2036
  • 8 active patents

Trial Analysis

  • 3 total trials
  • Stage: Growth

Competitive Landscape

  • 18 similar drugs
  • Same target/indication analysis
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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.

How We Calculate These Metrics

Trial Activity Stage

Measures the current development activity pattern based on trial phases, status, and trends. Important: This measures R&D activity, not commercial lifecycle.

Trial statuses: "Active" means recruiting or ongoing. "Completed" means reached planned endpoint. "Terminated" means stopped early—often due to safety, efficacy, or business reasons.

  • Growth: High proportion of early-phase trials (Phase 1/2), active development
  • Expansion: Significant Phase 3 activity, approaching or pursuing approvals
  • Mature: Substantial Phase 4 post-marketing studies
  • Stable: Mixed phase distribution, steady development
  • Declining: Low active trial ratio, reduced R&D investment