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Xdemvy

Phase 4FDA approved 2023

Blepharitis | Small Molecules | Ophthalmology |Tarsus Pharmaceuticals, Inc.|Trials Updated: Oct 1, 2025

Xdemvy development status

FDA approval Jul 24, 2023
Approval holderTarsus
ApplicationNDA217603
Highest phase Phase 4 run by Boston Sight (NCT07561450)
Phase scored for TARSPhase 3
Registered trials 1 across 1 sponsor since May 2026

Label indication XDEMVY is indicated for the treatment of Demodex blepharitis. XDEMVY is an ectoparasiticide (anti-parasitic) indicated for the treatment of Demodex blepharitis. ( 1 ) FDA label

Xdemvy target and mechanism

Molecular targetDemodex
ModalitySmall Molecules

Also known as TP-03

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials3
Total Enrollment872

FDA Designations

No designations recorded

Xdemvy clinical trials

Xdemvy · 3 trials · 3 indications

Phase 3 1Phase 2/3 1Phase 2 1
NCT04784091Trial to Evaluate the Safety and Efficacy of TP-03 for the Treatment of Demodex BlepharitisBlepharitis
COMPLETED412 Analytics
PHASE3COMPLETED
Trial to Evaluate the Safety and Efficacy of TP-03 for the Treatment of Demodex Blepharitis
BlepharitisUnlock trial analytics

Study Endpoints

Primary Endpoints

The Proportion of Participants Cured Based on Their Collarette Score of 0 for the Upper Eyelid.
43 days

The proportion of subjects cured where cure is defined as 0-2 lashes with collarettes on the upper eyelid of the analysis eye. The primary outcome analysis is the combined result from 20 analyses each with missing data imputed. Missing data were imputed per the method described in the SAP. The least square mean is computed from the result of the 20 analyses with imputed missing values

Proportion of Participants Cured Based on a Collarette Score at Day 43.
43 days

The proportion of participants cured where cure is defined as 0-2 lashes with collarettes on the upper eyelid of the analysis eye. The primary outcome analysis is the combined result from 20 analyses each with missing data imputed. Missing data were imputed per the method described in the SAP. The least square mean is computed from the result of the 20 analyses with imputed missing values.

Number of Participants With Treatment Emergent Adverse Events (TEAEs)
85 days

Number of participants with TEAEs related (definitely or potentially) to treatment summarized by MedDRA preferred term.

Secondary Endpoints

The Proportion of Participants With Their Demodex Mites Eradicated.
43 days
The Proportion of Participants Cured Based on a Composite of Collarette Score and Erythema Score
43 days
The Proportion of Participants Cured Based on Erythema Score.
43 days
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ActiveEXPERIMENTALTP-03, lotilaner ophthalmic solution, 0.25%, administered topically twice a day for approximately 43 days
ControlPLACEBO_COMPARATORVehicle of TP-03 ophthalmic solution, administered topically twice a day for approximately 43 days
BID DosingEXPERIMENTALTP-03, lotilaner ophthalmic solution, 0.25% administered topically twice a day and TP-03 vehicle administered once a day to maintain masking for approximately 85 days
TID DosingEXPERIMENTALTP-03, lotilaner ophthalmic solution, 0.25% administered topically three times a day for approximately 85 days

Interventions

NameTypeDescription
TP-03DRUGTP-03, lotilaner ophthalmic solution, 0.25%, administered twice a day
TP-03 VehicleDRUGVehicle of TP-03 ophthalmic solution, administered twice a day
TP-03, 0.25%DRUGTP-03, lotilaner ophthalmic solution, 0.25%, administered twice a day
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites21

Inclusion Criteria: * Be willing to sign the informed consent and deemed capable of complying with the requirements of the study protocol * Meet all of the following criteria in at least one eye: Have more than 10 lashes with collarettes present on the upper lid; have at least mild erythema of the ...

Countries:United States
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Competitive Landscape -Blepharitis 2 trials

Top 1 of 2 competitors

CompanyTickerTrialsLead PhaseDrugs
Glaukos CorpGKOS1PHASE4GLK-321
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Frequently asked questions about Xdemvy

What is Xdemvy used for?

Xdemvy is used to treat blepharitis and Meibomian Gland Dysfunction, eye conditions linked to Demodex infestation. It is a small molecule developed by Tarsus Pharmaceuticals, Inc. (ticker TARS) and studied in adults 18 years and older in placebo-controlled trials conducted in the United States.

What does Xdemvy target?

Xdemvy targets Demodex, the microscopic mites associated with blepharitis and Meibomian Gland Dysfunction. By acting on Demodex, the drug addresses the underlying infestation tied to these eyelid conditions. Xdemvy is a small molecule and is also known as TP-03 (Lotilaner Ophthalmic Solution), 0.25%.

Who makes Xdemvy?

Xdemvy is developed by Tarsus Pharmaceuticals, Inc., which trades under the ticker TARS. The company is the sponsor behind the clinical program for TP-03, also called Xdemvy, in ophthalmology. Its studies have focused on blepharitis and Meibomian Gland Dysfunction in adult patients.

What phase is Xdemvy in?

Xdemvy has been studied in Phase 3 clinical development. It is an investigational small molecule for blepharitis and Meibomian Gland Dysfunction, and the program includes completed Phase 2 and Phase 3 trials. The Phase 3 study NCT04784091 evaluated TP-03 for Demodex blepharitis in 412 participants.

What clinical trials is Xdemvy in?

Xdemvy has been evaluated in completed trials including NCT04784091, a Phase 3 study of TP-03 for Demodex blepharitis with 412 participants, and NCT04475432, a Phase 2 study in Demodex blepharitis with 421 participants. A Phase 2 pilot study, NCT05454956, compared two dosing regimens of TP-03 for Meibomian Gland Dysfunction in 39 participants.

Is Xdemvy the same as TP-03?

Yes, Xdemvy is also known as TP-03 (Lotilaner Ophthalmic Solution), 0.25%, and simply TP-03. These names refer to the same Tarsus Pharmaceuticals small molecule studied for blepharitis and Meibomian Gland Dysfunction. Searches for TP-03 and Xdemvy point to the same investigational ophthalmology asset.