Unexpected cataract cases in top-line data from two of three phase III trials for eye diseases is leading Kodiak Sciences Inc. to quit work with tarcocimab tedromer, an antibody biopolymer conjugate also known as KSI-301.
Kodiak Sciences Inc. shares (NASDAQ:KOD) closed at $9.86, down $40.49, or 80.42% after the firm unveiled top-line data from its randomized, double-masked, active comparator-controlled phase IIb/III trial testing KSI-301, an antibody biopolymer conjugate, in treatment-naïve subjects with wet age-related macular degeneration (AMD).
At the end of March, JAMA Ophthalmology’s publication of first results from the NIH-sponsored, 328-patient trial with Regeneron Pharmaceuticals Inc.’s VEGF inhibitor, Eylea (aflibercept), in non-proliferative diabetic retinopathy bolstered investor hopes for wider use. But competitors loom for the compound, first approved in November 2011 for wet age-related macular degeneration.
The first patients have been treated in Kodiak Sciences Inc.'s phase II DAZZLE trial of anti-VEGF antibody biopolymer conjugate KSI-301 in patients with treatment-naïve wet age-related macular degeneration. At least 368 patients worldwide are expected to enroll in the study. The primary endpoint will be assessed at one year and each patient will be treated and followed for two years.