Regeneron (REGN) Reports REGN5678 Shows Encouraging Anti-tumor Activity When Combined with PD-1 Inhibitor Libtayo

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Novel Costimulatory Bispecific Antibody Shows Encouraging Anti-tumor Activity When Combined with PD-1 Inhibitor Libtayo® (cemiplimab) in Advanced Metastatic Castration-resistant Prostate Cancer (mCRP

August 3, 2022 6:25 AM EDT

First clinical data from ongoing Phase 1/2 trial show dose-dependent anti-tumor activity for investigational REGN5678 (PSMAxCD28) when combined with standard dose Libtayo, suggesting potential to overcome mCRPC resistance to PD-1 inhibition

Anti-cancer activity correlated with immune-related adverse events

These data provide early evidence and proof of principle for Regeneron's broader costimulatory bispecific platform, which includes three CD28 bispecifics in ongoing clinical trials and additional candidates in preclinical development

TARRYTOWN, N.Y., Aug. 3, 2022 /PRNewswire/ -- Regeneron Pharmaceuticals, Inc. (NASDAQ:... More