Clinical Trial

Study Evaluating the Efficacy and Safety of Chloroprocaine HCl Ophthalmic Gel 3% vs Proparacaine Ophthalmic Solution 0.5% Plus Subconjunctival Lidocaine in Patients Undergoing Intravitreal Injections

Study acronym: Quell
Enrolling by Invitation Phase 4
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Summary
This Phase 4, multicenter, randomized, double-masked clinical study evaluates the efficacy and safety of chloroprocaine hydrochloride ophthalmic gel 3% (IHEEZO) compared with routine anesthesia (topical proparacaine 0.5% combined with subconjunctival lidocaine 2%) for ocular surface anesthesia during intravitreal injection procedures. Adult participants scheduled to undergo unilateral intravitreal injection of an FDA-approved anti-vascular endothelial growth factor (anti-VEGF) agent for retinal conditions will be randomized in a 1:1 ratio to receive either IHEEZO with a sham subconjunctival procedure or routine anesthesia. The primary objective is to determine whether IHEEZO is non-inferior to routine anesthesia in achieving successful ocular surface anesthesia, defined as a participant-reported pain score of 0 or 1 (on a 0-5 ordinal pain scale) immediately before and immediately after intravitreal injection. Secondary outcomes include individual and cumulative pain scores, change from baseline in dry eye symptoms measured by the Standard Patient Evaluation of Eye Dryness (SPEED) questionnaire, and ocular safety assessments through Day 7 follow-up.
Protocol Amendment History 2 changes
critical Trial status changed: Recruiting → Enrolling by Invitation 2026-04-08
critical Recruitment opened 2026-04-02
Trial Details
NCT Number NCT07456826
Lead Sponsor Harrow Inc
Conditions Diabetic Macular Edema (DME), Age-Related Macular Degeneration (AMD), Retinal Vein Occlusion, Diabetic Retinopathy (DR)
Enrollment 236 participants
Start Date 2026-03-31
Primary Completion 2026-08 (estimated)
Study Completion 2026-08 (estimated)
Updated on ClinicalTrials.gov 2026-04-07