OKN4395, a first-in-class EP2/EP4/DP1 triple antagonist reprograms prostanoid-driven immunosuppression to restore antitumor immunity
Maximilien Grandclaudon, Morgane Boulch, Anna Thaller, Jonathan Sabio-Ortiz, Alexandre Grimaldi, Marie Goxe, Agnes Knopf, Marie V. Daugan, Eva Huehn, Carmela Gnerre, Sébastien Jeay, Monica Faronato, Haithem Dakhli, Silvia Lopez‐Lastra, Alexandra Hardy, , Andrew J. Pierce
OKN4395, a triple EP2/EP4/DP1 antagonist, restores antitumor immunity by reversing prostanoid-driven immunosuppression and synergizes with anti-PD1 therapy.
bioRxiv · Feb 10, 2026 · PreprintPharmacology & Toxicology