Aldeyra Therapeutics, Inc. announced positive top-line symptom, redness, and Schirmer’s test results from the run-in cohort of the Phase III TRANQUILITY clinical trial of reproxalap in patients with dry eye disease.

Aldeyra Therapeutics, Inc. announced positive top-line symptom, redness, and Schirmer’s test results from the run-in cohort of the Phase III TRANQUILITY clinical trial in patients with dry eye disease . The double-masked, single-center, parallel-group run-in cohort enrolled 23 patients: 12 patients were randomized to receive 0.25% reproxalap ophthalmic solution and 11 patients were randomized to receive vehicle ophthalmic solution. Patients received four doses one day prior to and two doses on the day of exposure to a 90-minute dry eye chamber with minimal humidity, high airflow, and forced visual tasking. Over all time points in aggregate in the dry eye chamber, reproxalap was observed to be statistically superior to vehicle for the two assessed symptoms, visual analog scale (VAS) ocular dryness score (p = 0.001) and ocular discomfort score (p < 0.0001) in the run-in cohort of TRANQUILITY. Consistent with previously announced allergen chamber Phase II clinical trial results, reproxalap demonstrated statistically significant improvement over vehicle (p = 0.03) in ocular redness, an objective sign of dry eye disease. Improvement in ocular symptoms and redness occurred within minutes after reproxalap dosing. Following acute dosing on the day prior to the dry eye chamber, Schirmer test scores were directionally in favor of reproxalap over vehicle, and reproxalap was statistically superior to vehicle in improvement in VAS dryness score (p = 0.003), ocular discomfort 4-symptom questionnaire (OD4SQ) dryness score (p = 0.006), OD4SQ grittiness score (p = 0.006), and OD4SQ discomfort score (p = 0.003). Consistent with clinical experience in over 1,100 patients, no adverse findings on safety assessments were observed, and reproxalap was well-tolerated. The main cohort of TRANQUILITY is expected to begin enrollment in February 2021, following completion of tear RASP analysis from the run-in cohort and confirmation of endpoints and number of subjects. Results from TRANQUILITY are expected in the second half of 2021. A second Phase III clinical trial, TRANQUILITY-2, is expected to initiate in the first quarter of 2021..