Recent Updates
Recently added Catalysts

GLK-321

Phase 2

Demodex Blepharitis | Small molecule | Ophthalmology |Glaukos Corporation|Trials Updated: Feb 27, 2026

GLK-321 target and mechanism

ModalitySmall molecule

Also known as GLK-321 low dose BID, GLK-321 low dose, GLK-321 mid dose BID, GLK-321 mid dose

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment250

FDA Designations

No designations recorded

GLK-321 clinical trials

GLK-321 · 1 trial · 1 indication

Phase 2 1
NCT07400965Evaluation of the Safety and Efficacy of GLK-321 in Subjects With Demodex BlepharitisDemodex Blepharitis
RECRUITING250 Analytics
PHASE2RECRUITING
Evaluation of the Safety and Efficacy of GLK-321 in Subjects With Demodex Blepharitis
Demodex BlepharitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of study eyes with elimination of collarettes
6 weeks

Percentage of study eyes that had eyelash collarettes due to Demodex blepharitis at the onset of treatment who demonstrate absence of collarettes after 6 weeks of treatment

Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
GLK-321 low dose BIDEXPERIMENTALLow dose of GLK-321 administered twice daily (BID) to both eyes
GLK-321 mid dose BIDEXPERIMENTALMid dose of GLK-321 administered twice daily (BID) to both eyes
GLK-321 high dose BIDEXPERIMENTALHigh dose of GLK-321 administered twice daily (BID) to both eyes
GLK-321 high dose QDEXPERIMENTALHigh dose of GLK-321 administered once daily (QD) to both eyes
Placebo BIDPLACEBO_COMPARATORPlacebo administered twice daily (BID) to both eyes

Interventions

NameTypeDescription
GLK-321 low dose BIDDRUGTwice daily administration of low dose GLK-321 to both eyes
GLK-321 mid dose BIDDRUGTwice daily administration of mid dose GLK-321 to both eyes
GLK-321 high dose BIDDRUGTwice daily administration of high dose GLK-321 to both eyes
GLK-321 high dose QDDRUGOnce daily administration of high dose GLK-321 to both eyes
Placebo BIDDRUGTwice daily administration of placebo to both eyes
Unlock Study Design Details

Eligibility Criteria

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

Inclusion Criteria: * Signs of Demodex blepharitis in at least one eye * Best Spectacle Corrected Visual Acuity (BSCVA) of 20/80 Snellen or better in each eye Exclusion Criteria: * Presence of eczema or dermatitis in the ocular region of either eye * Use of lid hygiene products within 14 days of ...

Countries:United States
Unlock Eligibility Criteria

Frequently asked questions about GLK-321

What is GLK-321 used for?

GLK-321 is being developed for the treatment of Demodex blepharitis, an eyelid condition associated with Demodex mites. It is an investigational small molecule eye care candidate from Glaukos Corporation and has not been approved for commercial use. Clinical evaluation is currently limited to patients with this condition.

Who is developing GLK-321?

GLK-321 is being developed by Glaukos Corporation, which trades on the New York Stock Exchange under the ticker GKOS. The company is running the clinical program for the asset in Demodex blepharitis, with the work conducted in the United States.

What phase is GLK-321 in?

GLK-321 is in Phase 2 clinical development. The program consists of one recruiting Phase 2 trial in Demodex blepharitis, and no Phase 3 or later-stage studies have been recorded. The drug remains investigational and is not approved for any indication.

What clinical trial is GLK-321 in?

GLK-321 is being studied in the Phase 2 trial NCT07400965, titled Evaluation of the Safety and Efficacy of GLK-321 in Subjects With Demodex Blepharitis. The trial is recruiting in the United States, is randomized, double blind, and placebo controlled, and plans to enroll 250 participants aged 18 years and older.

Is GLK-321 the same as GLK-321 low dose BID or GLK-321 mid dose?

Yes. GLK-321 low dose BID, GLK-321 low dose, GLK-321 mid dose BID, and GLK-321 mid dose are alternative names used for the same investigational asset, GLK-321. These labels refer to different dose levels and dosing schedules evaluated within the same clinical program in Demodex blepharitis.