TheraRadar
Data updated: May 26, 2026

KLISYRI (tirbanibulin)

Trial Activity: Mature
First-in-Class
Dermatology Approved 2020-12-14

Klisyri (tirbanibulin) is a topical microtubule inhibitor indicated for the field treatment of actinic keratosis on the face or scalp. It is supplied as a 1% ointment for direct application to the affected area.

Source: FDA Label • ALMIRALL • Microtubule Inhibitor

How KLISYRI Works

Tirbanibulin is a microtubule inhibitor. While its exact mechanism of action for the topical treatment of actinic keratosis is unknown, it works by inhibiting tubulin polymerization and disrupting microtubule assembly.

Development Insights

Medical University of Graz conducting 2 trials (67%)
3 indications explored (Focused)
keratosis, actinic (1 trials)
actinic keratoses (1 trials)
actinic keratosis (1 trials)
2
Indications
--
Phase 3 Trials
5
Years on Market

Details

Status
Prescription
First Approved
2020-12-14
Patent Cliff
2038

Pro Metrics

Patent cliff and revenue data

Unlock with Pro
Routes
TOPICAL
Dosage Forms
OINTMENT

Companies

Active Ingredient: TIRBANIBULIN

KLISYRI Approval History

2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
4 FDA actions from 2020 to 2024 · 1 indication expansions
Jun 2024 SUPPL
Efficacy
Dec 2020 ORIGINAL
New Drug · Type 1 - New Molecular Entity

What KLISYRI Treats

1 indications

KLISYRI is approved for 1 conditions since its original approval in 2020. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Actinic Keratosis
Source: FDA Label

KLISYRI Competitive Set

Pro

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

Unlock 4 more competitors across all three rings.
Upgrade to Pro

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 KLISYRI

3 of 7

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

AMELUZ
AMINOLEVULINIC ACID HYDROCHLORIDE
1 shared
BIOFRONTERA
Shared indications:
Actinic Keratosis
CARAC
FLUOROURACIL
1 shared
EXTROVIS
Shared indications:
Actinic Keratosis
FAVLYXA
FLUOROURACIL
1 shared
AVYXA HOLDINGS
Shared indications:
Actinic Keratosis
📋

Clinical Trial Registry

3 trials
Trial Sponsor ID Phase Status Title
NCT06135415 TirbAKare M-14867-33 2023-505487-11-00 Ph 3 completed A Study to Evaluate the Efficacy and Safety of Tirbanibulin Ointment in Adult Participants With Actinic Keratosis
NCT06026358 Tirbanibulin: Back of Hands Ph 4 withdrawn Tirbanibulin 1% Ointment for the Treatment of Actinic Keratosis on the Back of the Hands
NCT05900258 SunDamage SunDamage Ph 4 completed Tirbanibulin 1% Ointment for the Treatment of Chronically Sun-damaged Skin on the Face
🔬

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.

KLISYRI FDA Label Details

Indications & Usage

FDA Label (PDF)

KLISYRI is indicated for the treatment of Actinic Keratosis.

View full patent landscape →
6 OB patents · 5 families · 180 international docs across 33 countries

KLISYRI Patents & Exclusivity

Latest Patent: Sep 2038
Exclusivity: Jun 2027

Patents (6 active)

US10669236 Expires Sep 7, 2038
US10617693 Expires Mar 12, 2038
US11497750 Expires Mar 12, 2038
US7300931 Expires Dec 28, 2030
US7851470 Expires Feb 2, 2029
US10323001 Expires Dec 28, 2027

Exclusivity

D-192 Until Jun 2027
Source: FDA Orange Book

Pro Intelligence Preview

Deep insights for KLISYRI

Revenue Insights

  • Quarterly revenue tracking
  • Historical trend analysis

Patent Timeline

  • Cliff: 2038
  • 6 active patents

Trial Analysis

  • 3 total trials
  • Stage: Mature

Competitive Landscape

  • 7 similar drugs
  • Same target/indication analysis
Unlock Full Intelligence

Full approval history • All patents • Revenue trends • Competitor analysis

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