TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

INREBIC

FEDRATINIB HYDROCHLORIDE
Respiratory Approved 2019-08-16
1
Indication
--
Phase 3 Trials
1
Priority Reviews
6
Years on Market

Details

Status
Prescription
First Approved
2019-08-16
Routes
ORAL
Dosage Forms
CAPSULE

Companies

Active Ingredient: FEDRATINIB HYDROCHLORIDE

INREBIC Approval History

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What INREBIC Treats

3 indications

INREBIC is approved for 3 conditions since its original approval in 2019. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Myelofibrosis
  • Polycythemia Vera
  • Essential Thrombocythemia
Source: FDA Label

INREBIC Boxed Warning

ENCEPHALOPATHY INCLUDING WERNICKE'S Serious and fatal encephalopathy, including Wernicke's, has occurred in patients treated with INREBIC. Wernicke's encephalopathy is a neurologic emergency. Assess thiamine levels in all patients prior to starting INREBIC. Do not start INREBIC in patients with thiamine deficiency; replete thiamine prior to treatment initiation. While on treatment all patients should receive prophylaxis with daily oral thiamine and should have thiamine levels assessed as clinica...

INREBIC Target & Pathway

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Target

JAK1 (Janus Kinase 1) Intracellular Kinase

A member of the JAK family involved in signaling for interferons and several interleukins. JAK1 inhibition is effective in rheumatoid arthritis, atopic dermatitis, and other inflammatory conditions by blocking multiple cytokine pathways.

INREBIC Competitors

Pro

10 other drugs also target JAK1. Compare mechanisms, indications, and trial activity.

View all 10 JAK1 drugs →
Drug = Competitor name Company = Manufacturer N indic. = FDA-approved indications → Date = Patent/exclusivity expiry

Competitors share the same molecular target (JAK1). Earlier expiry dates signal biosimilar/generic opportunities.

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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.

INREBIC FDA Label Details

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Indications & Usage

FDA Label (PDF)

INREBIC ® is indicated for the treatment of adult patients with intermediate-2 or high-risk primary or secondary (post-polycythemia vera or post-essential thrombocythemia) myelofibrosis (MF). INREBIC is a kinase inhibitor indicated for the treatment of adult patients with intermediate-2 or high-risk primary or secondary (post-polycythemia vera or post-essential thrombocythemia) myelofibrosis (MF) .

⚠️ BOXED WARNING

WARNING: ENCEPHALOPATHY INCLUDING WERNICKE'S Serious and fatal encephalopathy, including Wernicke's, has occurred in patients treated with INREBIC. Wernicke's encephalopathy is a neurologic emergency. Assess thiamine levels in all patients prior to starting INREBIC. Do not start INREBIC in patients ...

INREBIC Patents & Exclusivity

Latest Patent: Sep 2039
Exclusivity: Aug 2026

Patents (5 active)

US11400092 Expires Sep 24, 2039
US10391094 Expires Jun 4, 2032
US7528143 Expires Nov 16, 2031
US8138199 Expires Jun 30, 2028
US7825246 Expires Dec 16, 2026

Exclusivity

ODE-259 Until Aug 2026
Source: FDA Orange Book

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Data Sources

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