QLS-111-FDC preservative-free eye drops to lower eye pressure in open-angle glaucoma or ocular hypertension

A Masked, Randomized, Prospective Study of QLS-111-FDC in Subjects With Open-Angle Glaucoma or Ocular Hypertension

Phase2; Phase3 Interventional Qlaris Bio, Inc. · NCT07354516

This 14-day test will see if preservative-free QLS-111-FDC eye drops lower intraocular pressure better than preservative-free latanoprost in adults with open-angle glaucoma or ocular hypertension.

Quick facts

PhasePhase2; Phase3
Study typeInterventional
Enrollment60 (estimated)
Ages12 Years and up
SexAll
SponsorQlaris Bio, Inc. Industry-sponsored
Locations1 site (Largo, Florida)
Trial IDNCT07354516 on ClinicalTrials.gov

What this trial studies

This is a 14-day, randomized, double-masked, active-controlled study comparing an investigational preservative-free fixed-dose combination (QLS-111-FDC) with preservative-free latanoprost in adults with mild to moderate open-angle glaucoma or ocular hypertension. Participants undergo a run-in with preservative-free latanoprost and must have an 08:00 IOP of ≥19 mmHg at qualification to be randomized. The study is multicenter with five visits and measures IOP-lowering effect along with safety and tolerability. Outcomes focus on short-term IOP reduction and adverse events with the investigational fixed-dose combination.

Who should consider this trial

Good fit: Adults with mild to moderate open-angle glaucoma or ocular hypertension, visual acuity of 20/200 or better in each eye, and an 08:00 IOP ≥19 mmHg after a preservative-free latanoprost run-in are ideal candidates.

Not a fit: Patients with narrow or closed angles, recent intraocular surgery, active ocular disease other than mild–moderate OAG/OHT, prior nonresponse to topical prostaglandin analogs, extreme corneal thickness, or uncontrolled systemic disease are unlikely to benefit or be eligible.

Why it matters

Potential benefit: If successful, the preservative-free fixed-dose combination could lower eye pressure effectively with the convenience of a single drop and reduced preservative exposure.

How similar studies have performed: Other preservative-free prostaglandin-based treatments and some fixed-dose combinations have shown IOP-lowering benefits, but this specific QLS-111-FDC formulation is investigational and not yet proven in larger trials.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* BCVA 1.0 logMAR or better in each eye (equivalent to 20/200)
* Diagnosis of mild to moderate OAG or OHT in at least one eye
* IOP ≥19 mmHg at 08:00 hour (H) at Qualification Visits following a run-in with PF latanoprost

Exclusion Criteria:

* History of active ocular disease other than mild to moderate OAG/OHT
* Prior use of any topical PGA without a clinically meaningful response
* Noncompliant with current ocular anti-hypertensive medications or unwilling to be compliant throughout the study
* Use of other topical ocular concomitant medications 30 days prior
* History of angle closure or a narrow angle, significant ocular trauma, ocular infection, uveitis, intraocular surgery in either eye.
* Central corneal thickness in either eye \<470 or \>630 μm
* Clinically significant systemic or psychiatric disease, chronic kidney disease, or hypertension, hypotension, or diabetes that is uncontrolled.
* Participation in any investigational study within 30 days prior to Screening
* Females who are pregnant, nursing, or not using birth control.

Where this trial is running

Largo, Florida

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions OAG - Open-Angle GlaucomaOHT - Ocular Hypertensionglaucomaintraocular pressureeye drops
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.