Why Did KOD Stock Surge 40% In Pre-Market Today?

The company said its Phase 3 trial to treat diabetic retinopathy met its primary endpoint.

Trending stock. (Photo Courtesy of Flavio Coelho via Getty Images)

Arnab Paul · Stocktwits

Published Mar 26, 2026, 6:53 AM ETD

KOD

Shares of Kodiak Sciences (KOD) jumped nearly 40% in pre-market trading on Thursday, after the pharmaceutical firm reported positive Phase 3 results for its eye drug Zenkuda to treat patients with diabetic retinopathy.

The study met its primary endpoint as a total of 62.5% of patients treated with Zenkuda achieved at least a two-step improvement in DRSS score, a measure of severity, by week 48, compared with just 3.3% in the control group. The drug also reduced the risk of sight-threatening complications by 85% through Week 48.

Zenkuda delivered consistent benefits regardless of GLP-1 use, with 60% of patients on GLP-1 therapies achieving a two-step DRSS improvement by Week 48, compared to 64.3% among those not using GLP-1 drugs. The treatment was well tolerated, with no cases of intraocular swelling and low rates of side effects.

“We now have a multi-indication BLA-ready profile for Zenkuda, and we intend to accelerate our BLA submission plans,” said Victor Perlroth, CEO of Kodiak Sciences.

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