3 DAYBREAK – Phase 3 Study in Patients with Wet Age-Related Macular Degeneration The Phase 3 DAYBREAK study is a non-inferiority study evaluating parallel investigational arms of tarcocimab and KSI-501 against active comparator aflibercept. Patients randomized to tarcocimab will receive individualized dosing every 4 to 24 weeks on an as needed basis following four monthly loading doses. Patients randomized to aflibercept will be dosed per its label. The individualized dosing of tarcocimab is determined by a treat-to-dryness proactive approach, using presence of retinal fluid as a disease activity marker, instead of a combination of central subfield thickness ("CST") and vision loss, which resembles retina specialists' practice and optimizes each patient's treatment. The objectives for tarcocimab in DAYBREAK are to assess its 6-month durability potential, strengthen its competitive position in wet AMD and bolster the regulatory application package for the program. DAYBREAK is actively enrolling patients, and Kodiak anticipates to be in a position to announce topline data for the primary endpoint in 2Q 2026. Completed Studies: GLOW1 – Phase 3 Study in Patients with Non-Proliferative Diabetic Retinopathy without DME The Phase 3 GLOW1 study was a global, multi-center, randomized pivotal superiority study designed to evaluate the efficacy and safety of tarcocimab in treatment-naïve patients with moderately severe to severe DR. Patients were randomized to receive either tarcocimab every six months after initiating doses given at baseline, 8 weeks and 20 weeks into the study, or to receive sham injections. The primary endpoint was at one year. On November 6, 2023, Kodiak announced that GLOW1 met its primary endpoint of the proportion of patients with at least a 2-step improvement on the Diabetic Retinopathy Severity Scale (DRSS) score, a grading system measuring the degree of retinopathy. Tarcocimab achieved a 29-fold increased response rate ratio, with 41.1% of evaluable patients on tarcocimab demonstrating at least 2-step improvement versus 1.4% of evaluable patients in the sham group (p-value less than 0.0001). Visual acuity and retinal anatomy were improved and stable with tarcocimab on its extended-dosing intervals. At one year, GLOW1 also met its key secondary endpoint of greater reductions in the proportion of patients developing sight-threatening complications (such as diabetic macular edema and proliferative diabetic retinopathy), versus sham, demonstrating an 89% decreased risk, achieving 21.0% versus 2.3% (p-value less than 0.0001). Tarcocimab also showed a 95% risk reduction in the development of DME, versus sham, from 13.7% on sham versus 0.7% on tarcocimab. The rates of serious ocular adverse events and intraocular inflammation in patients treated with tarcocimab and sham were similar. BEACON – Phase 3 Study in Patients with Treatment-Naïve Retinal Vein Occlusion The Phase 3 BEACON study was a randomized, double-masked, multicenter, active comparator-controlled study in treatment naïve patients with vision loss and macular edema due to retinal vein occlusion, including both branch ("BRVO") and central ("CRVO") subtypes. In the initial six months of the study, patients received tarcocimab on a fixed every-8-week dosing regimen following 2 monthly loading doses or aflibercept 2mg on a fixed monthly dosing regimen per its label. In the second six months of the study, tarcocimab and aflibercept were tested head-to-head according to a pro re nata (“PRN") protocol in which patients in both groups were treated only when disease reactivated according to matched predefined disease activity criteria. In August 2022, Kodiak announced that the BEACON study met the primary efficacy endpoint of non-inferior visual acuity change from baseline at week 24 for subjects given tarcocimab every two months after 2 monthly loading doses compared to subjects given monthly aflibercept.

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