Zunsemetinib for COVID-19: real-time analysis

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c19early.org

Zunsemetinib for COVID-19

1 study with 20 patients

Serious outcome risk

Zunsemetinib

Control

No significant improvements are seen in meta-analysis to date.

COVID-19 Zunsemetinib studies · October 2026

Outcome (studies)

Improvement

Relative risk · 95% CI

All studies (1)0%

Mortality (1)0%

RCTs (1)0%

Late (1)0%

00.511.5+

← Zunsemetinib
reduces riskIncreased
risk →

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Zunsemetinib (ATI-450) is an investigational, orally administered, small-molecule anti-inflammatory drug that inhibits the p38α→MK2 inflammatory signaling pathway, potentially reducing cytokine storm for COVID-19.


Jun 4 2025	Gan et al., NCT04481685	A Double-blind, Randomized, Controlled Trial of ATI-450 in Patients With Moderate-severe COVID-19
Jun 4 2025	no change in mortality (p=1) and 25% higher progression (p=1). RCT 20 hospitalized patients showing no significant difference in outcomes with ATI-450 (zunsemetinib).