Kala Pharmaceuticals, Inc. announced that the U.S. Food and Drug Administration (FDA) has accepted an investigational new drug (IND) application for the company's lead product candidate, KPI-012, a human mesenchymal stem cell secretome (MSC-S), initially in development for the treatment of persistent corneal epithelial defect (PCED). The Phase 2b clinical trial will be a multicenter, randomized, double-masked, vehicle-controlled, parallel-group study to evaluate the safety and efficacy of two doses of KPI-012 ophthalmic solution compared to vehicle when dosed topically four times per day (QID) for 56 days. The trial is expected to enroll approximately 90 adult patients with PCED, and the primary endpoint of the trial will be complete healing of the PCED as measured by corneal fluorescein staining.

Kala expects to initiate enrollment in the trial in the first quarter of 2023 and expects to report topline data in the first quarter of 2024. If the results are positive, Kala believes this trial could serve as the first of two pivotal trials required to support the submission of a Biologics License Application (BLA) to the FDA.