TheraRadar
Data updated: May 26, 2026

LEQSELVI (deuruxolitinib phosphate)

Genetic Support
Fast Track
Immunology Approved 2024-07-25

LEQSELVI treats adults living with severe alopecia areata. This medication helps patients with significant hair loss by targeting specific pathways in the immune system. It is used as a standalone therapy and should not be combined with other potent immunosuppressants or similar JAK inhibitors.

Source: FDA Label • Sun Pharma

How LEQSELVI Works

This medication works by inhibiting Janus kinase (JAK) enzymes, which

1
Indication
--
Phase 3 Trials
1
Years on Market

Details

Status
Prescription
First Approved
2024-07-25
Patent Cliff
2044

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Routes
ORAL
Dosage Forms
TABLET

Companies

Active Ingredient: DEURUXOLITINIB PHOSPHATE

LEQSELVI Approval History

2025
2026
Original
New Indication
New Form
Label Update
1 FDA actions from 2024 to 2024
Jul 2024 ORIGINAL
New Drug · Type 1 - New Molecular Entity

What LEQSELVI Treats

1 indications

LEQSELVI is approved for 1 conditions since its original approval in 2024. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Alopecia Areata
Source: FDA Label

LEQSELVI Boxed Warning

SERIOUS INFECTIONS, MORTALITY, MALIGNANCY, MAJOR ADVERSE CARDIOVASCULAR EVENTS, AND THROMBOSIS Increased risk of serious bacterial, fungal, viral and opportunistic infections, including tuberculosis (TB), that may lead to hospitalization or death. Interrupt treatment with LEQSELVI if a serious infection occurs until the infection is controlled. LEQSELVI treatment is not recommended in patients with active tuberculosis. Test for latent TB before and during therapy; treat latent TB prior to use. M...

LEQSELVI 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.

LEQSELVI Competitive Set

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

Direct competitors

2

Same target(s) AND same indication — head-to-head.

Indication competitors

1

Same indication, different mechanism — what else might this patient receive?

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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.

Drugs Similar to LEQSELVI

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

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Shared indications:
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LITFULO
RITLECITINIB TOSYLATE
1 shared
Pfizer
Shared indications:
Alopecia Areata
OLUMIANT
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1 shared
Eli Lilly
Shared indications:
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Active Pipeline

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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.

LEQSELVI FDA Label Details

Indications & Usage

FDA Label (PDF)

LEQSELVI is indicated for the treatment of Alopecia Areata.

⚠️ BOXED WARNING

WARNING: SERIOUS INFECTIONS, MORTALITY, MALIGNANCY, MAJOR ADVERSE CARDIOVASCULAR EVENTS, AND THROMBOSIS Increased risk of serious bacterial, fungal, viral and opportunistic infections, including tuberculosis (TB), that may lead to hospitalization or death. Interrupt treatment with LEQSELVI if a seri...

View full patent landscape →
6 OB patents · 5 families · 79 international docs across 21 countries

LEQSELVI Patents & Exclusivity

Latest Patent: Oct 2044
Exclusivity: Jul 2029

Patents (6 active)

US12364699 Expires Oct 10, 2044
US12247034 Expires May 10, 2044
US12285432 Expires Aug 11, 2042
US11919907 Expires May 21, 2041
US10561659 Expires May 4, 2037
US12076323 Expires May 4, 2037

Exclusivity

NCE Until Jul 2029
Source: FDA Orange Book

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Revenue Insights

  • Quarterly revenue tracking
  • Historical trend analysis

Patent Timeline

  • Cliff: 2044
  • 6 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 3 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.