TheraRadar

Pharma Intelligence, Simplified

Data updated: Mar 10, 2026

LITFULO

RITLECITINIB TOSYLATE
Immunology Approved 2023-06-23
1
Indication
--
Phase 3 Trials
2
Years on Market

Details

Status
Prescription
First Approved
2023-06-23
Routes
ORAL
Dosage Forms
CAPSULE

Companies

Active Ingredient: RITLECITINIB TOSYLATE

LITFULO Approval History

Loading approval history...

What LITFULO Treats

1 indications

LITFULO is approved for 1 conditions since its original approval in 2023. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Alopecia Areata
Source: FDA Label

LITFULO Boxed Warning

SERIOUS INFECTIONS, MORTALITY, MALIGNANCY, MAJOR ADVERSE CARDIOVASCULAR EVENTS (MACE), and THROMBOSIS WARNING: SERIOUS INFECTIONS, MORTALITY, MALIGNANCY, MAJOR ADVERSE CARDIOVASCULAR EVENTS (MACE), and THROMBOSIS See full prescribing information for complete boxed warning. • Increased risk of serious bacterial, fungal, viral, and opportunistic infections that may lead to hospitalization or death, including tuberculosis (TB). Interrupt treatment if serious infection occurs until the infection is ...

LITFULO Target & Pathway

Pro

Target

JAK (Janus Kinase) Intracellular Kinase

A family of enzymes that transmit cytokine signals inside cells. JAKs mediate signaling for many inflammatory cytokines, making them attractive targets for autoimmune diseases. JAK inhibitors block multiple inflammatory pathways simultaneously.

LITFULO Competitors

Pro

4 other drugs also target JAK. Compare mechanisms, indications, and trial activity.

Drug = Competitor name Company = Manufacturer N indic. = FDA-approved indications → Date = Patent/exclusivity expiry

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

🔬

Active Pipeline

Pro

Ongoing clinical trials by development phase

Loading...

Key Completed Trials

Pro

Completed studies with published results, ranked by significance

Loading...
📊

Trial Timeline

Full development history with FDA approval milestones

Loading...
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.

LITFULO FDA Label Details

Pro

Indications & Usage

FDA Label (PDF)

LITFULO is a kinase inhibitor indicated for the treatment of severe alopecia areata in adults and adolescents 12 years and older. Limitations of Use : Not recommended for use in combination with other JAK inhibitors, biologic immunomodulators, cyclosporine or other potent immunosuppressants. LITFULO is a kinase inhibitor indicated for the treatment of severe alopecia areata in adults and adolescents 12 years and older. Limitations of Use : Not recommended for use in combination with other JAK inhibitors, biologic immunomodulators, cyclosporine or other potent immunosuppressants .

⚠️ BOXED WARNING

WARNING: SERIOUS INFECTIONS, MORTALITY, MALIGNANCY, MAJOR ADVERSE CARDIOVASCULAR EVENTS (MACE), and THROMBOSIS WARNING: SERIOUS INFECTIONS, MORTALITY, MALIGNANCY, MAJOR ADVERSE CARDIOVASCULAR EVENTS (MACE), and THROMBOSIS See full prescribing information for complete boxed warning. • Increased risk ...

LITFULO Patents & Exclusivity

Latest Patent: Oct 2041
Exclusivity: Jun 2028

Patents (3 active)

US12116368 Expires Oct 17, 2041
US12077533 Expires Dec 3, 2034
US9617258 Expires Dec 3, 2034

Exclusivity

NCE Until Jun 2028
Source: FDA Orange Book

Want competitive intelligence?

See who's developing similar drugs and track their progress

View Pipeline Dashboard

Data Sources

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