Kala Pharmaceuticals completes Enrollment of STRIDE 3 Trial for EYSUVIS™ for Dry Eye Disease

Watertown: Kala Pharmaceuticals, Inc. (Kala), a biopharmaceutical company focused on the development and commercialization of therapeutics using its proprietary AMPPLIFY™ mucus-penetrating particle (MPP) Drug Delivery Technology, announced that it has completed enrollment in its STRIDE 3 (STRIDE – Short Term Relief In Dry Eye) Phase 3 clinical trial for KPI-121 0.25%, its product candidate for the short-term treatment of dry eye disease. If approved, Kala plans to commercialize KPI-121 0.25% under the brand name EYSUVIS™. Kala is targeting to report top-line results from this trial during the first quarter of 2020 and resubmission of the EYSUVIS New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) in the first half of 2020. Kala believes this resubmission would be subject to a six-month review.

"Today's announcement represents a significant milestone for Kala," said Kim Brazzell, Chief Medical Officer of Kala. "If approved, we believe EYSUVIS could become the preferred prescription therapy for dry eye flares, which affect the vast majority of dry eye patients. We thank the many patients who participated in this trial, and we are also grateful to our study sites and investigators."

The STRIDE 3 trial is a multicenter, randomized, double-masked, placebo-controlled, parallel-arm study, comparing EYSUVIS to the vehicle (placebo), each dosed four times a day (QID) for two weeks in approximately 900 patients with dry eye disease. Subjects who meet initial screening and inclusion/exclusion criteria undergo a two-week run-in period with a vehicle. Subjects who continue to meet inclusion/exclusion criteria after the run-in are randomized to receive either EYSUVIS or vehicle for two weeks. The STRIDE 3 trial design reflects specific modifications to the inclusion and exclusion criteria of Kala's previous trials of EYSUVIS, which were implemented to improve the probability of success. Kala expects that data from the STRIDE 3 trial will serve as the basis for the resubmission of the EYSUVIS NDA to the FDA.

Kala is a biopharmaceutical company focused on the development and commercialization of therapeutics using its proprietary AMPPLIFY™ MPP Drug Delivery Technology, with an initial focus on the treatment of eye diseases. Kala has applied the AMPPLIFY Drug Delivery Technology to a corticosteroid, loteprednol etabonate (LE), designed for ocular applications, resulting in the August 2018 FDA approval of INVELTYS® (loteprednol etabonate ophthalmic suspension) 1% and its investigational product, EYSUVIS (loteprednol etabonate ophthalmic suspension) 0.25%, which is being studied for the temporary relief of the signs and symptoms of dry eye disease.

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