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IRX-101

Phase 3

Retinal Disease | Small molecule | Ophthalmology |Tarsus Pharmaceuticals, Inc.|Last Updated: Apr 3, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials2
Total Enrollment395

FDA Designations

No designations recorded

Clinical trial landscape

IRX-101 · 2 trials · 1 indication

Phase 3 1Phase 2 1
NCT05750589Safety and Tolerability of IRX-101 in Patients Receiving Intravitreal InjectionsRetinal Disease
NOT YET_RECRUITING240 Analytics
PHASE3NOT YET_RECRUITING
Safety and Tolerability of IRX-101 in Patients Receiving Intravitreal Injections
Retinal DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Assessment of post-intravitreal injection eye pain
Demonstrate a reduction in mean 1-hr post-injection pain scores

Demonstrate the superiority of IRX-101 compared to PI in terms of reducing patient-reported post-intravitreal injection eye pain; pain will be assessed using the visual analog pain scale, a validated patient-reported outcome measure (questionnaire) for assessing patient's subjective pain and discomfort

Safety of new drug
1-hour and 1-week post-treatment

Safety will be measured via slit lamp and fundoscopic examinations

Secondary Endpoints

Change in post-IVT corneal epitheliopathy as evaluated by corneal fluorescein staining scores
Immediately following intraviteral injection
Mean corneal fluorescein staining scores
Immediately following intraviteral injection
Patient-reported post-injection pain scores
1-hour post-administration
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
IRX-101EXPERIMENTALSubjects randomized to IRX-101 will receive the investigational product, IRX-101.
5% Povidone-iodineACTIVE_COMPARATORSubjects randomized to this arm will receive the standard of care, Providone-iodine, at a concentration of 5%.

Interventions

NameTypeDescription
IRX-101DRUGIRX-101 is a novel ocular anti-septic
Providone-IodineDRUG5% Providone-Iodine
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. Capable of giving informed consent 2. Stated willingness to comply with all study procedures and availability for the duration of the study 3. Male or female, ≥ 18 years of age and receiving intravitreal anti-VEGF injections in one or both eyes Exclusion Criteria: 1. Curren...

Countries:United States
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Frequently asked questions about IRX-101

What is IRX-101 used for in retinal disease?

IRX-101 is an investigational small molecule being developed by Tarsus Pharmaceuticals for use in retinal disease. It is designed to improve patient comfort and safety during intravitreal injections, which are common treatments for retinal conditions. The drug is currently in Phase 3 clinical development and has not yet been approved by the FDA.

Who is developing IRX-101?

IRX-101 is being developed by Tarsus Pharmaceuticals, Inc., a biopharmaceutical company traded on NASDAQ under the ticker TARS. The company is conducting clinical trials to evaluate the safety and tolerability of IRX-101 in patients receiving intravitreal injections for retinal disease.

What phase is IRX-101 in?

IRX-101 is currently in Phase 3 clinical development. The Phase 3 trial, NCT05750589, is a randomized, double-blind, active-controlled study designed to evaluate the safety and tolerability of IRX-101 in patients receiving intravitreal injections. The trial is not yet recruiting and has an estimated enrollment of 240 participants.

What clinical trials is IRX-101 in?

IRX-101 has been studied in two clinical trials. The completed Phase 2 trial, NCT05747430, enrolled 155 participants and was titled 'SteRilizing Eye SoLution to ImprovE Patient ComFort (RELIEF)'. The ongoing Phase 3 trial, NCT05750589, is titled 'Safety and Tolerability of IRX-101 in Patients Receiving Intravitreal Injections' and is not yet recruiting.

How does IRX-101 work?

IRX-101 is a small molecule designed to improve patient comfort during intravitreal injections for retinal disease. Its mechanism of action is not publicly detailed in the available information, but it is being evaluated for its safety and tolerability in clinical trials.