Kodiak Sciences (KOD) posts strong GLOW2 Phase 3 win in diabetic retinopathy
Rhea-AI Filing Summary
Kodiak Sciences reported positive topline results from GLOW2, its second Phase 3 study of Zenkuda (tarcocimab tedromer) in diabetic retinopathy. In GLOW2, 62.5% of Zenkuda-treated patients achieved at least a 2-step improvement on the Diabetic Retinopathy Severity Scale at Week 48, compared with 3.3% on sham, meeting the primary endpoint with high statistical significance.
Zenkuda also cut the risk of prespecified sight-threatening complications, such as proliferative diabetic retinopathy or center-involving diabetic macular edema, by 85% versus sham through Week 48 (2.4% versus 15.8%). The drug was well-tolerated, with low rates of common ocular adverse events, no intraocular inflammation, and no retinal vasculitis observed.
The company states that the combined GLOW1 and GLOW2 results support a multi-indication BLA-ready profile for Zenkuda across diabetic retinopathy, retinal vein occlusion, and wet age-related macular degeneration, and it intends to accelerate its BLA submission plans while advancing additional Phase 3 programs based on its ABC platform.
Positive
- Robust Phase 3 efficacy in diabetic retinopathy: In GLOW2, 62.5% of Zenkuda-treated patients achieved a ≥2-step DRSS improvement at Week 48 versus 3.3% on sham, with p<0.0001, and an 85% reduction in sight-threatening complications (2.4% vs 15.8%).
- Favorable safety profile and multi-indication positioning: No intraocular inflammation, retinal vasculitis, or occlusive retinal vasculitis were observed, and combined GLOW1/GLOW2, BEACON, and DAYLIGHT results support a company-described BLA-ready profile across DR, RVO, and wet AMD.
Negative
- None.
Insights
Phase 3 GLOW2 success strengthens Zenkuda’s BLA-ready profile.
Kodiak reports that in GLOW2, Zenkuda achieved a ≥2-step Diabetic Retinopathy Severity Scale improvement at Week 48 in 62.5% of treated patients versus 3.3% on sham, meeting the primary endpoint with high statistical significance (p<0.0001).
The study also showed an 85% reduction in prespecified sight-threatening complications (2.4% with Zenkuda versus 15.8% with sham, p=0.0001). Safety findings were favorable, with no intraocular inflammation, retinal vasculitis, or occlusive retinal vasculitis reported and cataract incidence similar between arms.
Combined with GLOW1, BEACON, and DAYLIGHT, the company characterizes Zenkuda as having a multi-indication BLA-ready profile in diabetic retinopathy, retinal vein occlusion, and wet AMD. Actual regulatory outcomes will depend on agency review of the full data package and ongoing studies like DAYBREAK.
Data also bolster Kodiak’s broader ABC platform pipeline.
The company highlights Zenkuda’s mean ocular half-life of 20 days and successful extended-interval dosing, with all patients on 6‑month dosing in GLOW studies. It links GLOW2’s favorable efficacy and safety to refinements in regimen and enhanced formulation on the ABC platform.
Kodiak plans to accelerate BLA submission plans for Zenkuda and references multiple late-stage programs: the Phase 3 DAYBREAK study in wet AMD for Zenkuda and KSI-501, and two Phase 3 studies for KSI-101 in macular edema secondary to inflammation. Topline DAYBREAK data are expected in Q3 2026 and initial KSI-101 readouts beginning in Q4 2026, subject to successful trial outcomes.
FAQ
What did Kodiak Sciences (KOD) report from the GLOW2 Phase 3 study?
How effective was Zenkuda in reducing diabetic retinopathy complications in GLOW2 for KOD?
What safety results for Zenkuda did Kodiak Sciences (KOD) highlight from GLOW2?
How do GLOW2 results relate to earlier GLOW1 data for Kodiak Sciences (KOD)?
What regulatory plans did Kodiak Sciences (KOD) outline for Zenkuda after GLOW2?
What other late-stage programs besides Zenkuda is Kodiak Sciences (KOD) developing?
Filing Exhibits & Attachments
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