155 Impact of Relacorilant, a Selective Glucocorticoid Receptor Antagonist, on the Immunosuppressive Effects of Endogenous Cortisol 1 2 3 4 1 5 Copies of this poster obtained Andrew E. Greenstein ; Pamela N. Munster ; Jasgit C. Sachdev ; Gini F. Fleming ; Andreas Grauer ; Stacie Peacock Shepherd through Quick Response (QR) Code are for personal use only and may not be reproduced 1 2 3 without permission from ASCO® Corcept Therapeutics, Menlo Park, CA, USA; University of California, San Francisco School of Medicine, San Francisco, CA, USA; HonorHealth Research Institute/TGen, Scottsdale, AZ, USA; and the author of this poster. 4The University of Chicago Medicine, Chicago, IL, USA; 5formerly Corcept Therapeutics, Menlo Park, CA, USA Contact:
[email protected] RESULTS RELACORILANT PROMOTES CHECKPOINT INHIBITOR RESPONSE IN TRANSCRIPTIONAL AND HEMATOLOGICAL EFFECTS OF Immune Activation and Antagonism of GC Activity by Relacorilant in a Figure 11. Plasma and Whole Blood Trends in Patients with Durable Benefit. BACKGROUND o In melanomas: SYNGENEIC MOUSE MODEL RELACORILANT SUGGEST IMPROVED IMMUNE ACTIVITY IN PHASE Patient with Complete Response GR EXPRESSION IS ASSOCIATED WITH TUMOR INFILTRATION OF The combination of a PD-1 antagonist antibody (αPD1, an ICI) and relacorilant was assessed in 1/2 STUDY IN PATIENTS WITH ADVANCED SOLID TUMORS In the Phase 1/2 solid tumor study, complete response per RECIST 1.1 was observed in CORTISOL EFFECTOR AND REGULATORY IMMUNE CELLS – Positive correlations between GR and CD8+ cytotoxic T-cells (R=0.24, Neutrophil-to-Lymphocyte P<0.001), T (R=0.29, P<0.001), and T-helper type 2 (Th2) cells (R=0.2, the EG7 tumor model.