Enanta Pharmaceuticals (ENTA) Earnings Call Presentation

Financial Status - Enanta Pharmaceuticals reported a strong balance sheet with $193.4 million in cash as of March 31, 2025[6] - The company is leveraging ongoing royalties to support its robust pipeline[6] Respiratory Syncytial Virus (RSV) - Zelicapavir (EDP-938) - Zelicapavir is the only N-inhibitor in clinical development for RSV[17] - A Phase 2 pediatric study showed a viral load decline of 1.18 log at Day 5 in a prespecified subset of patients[25] - A Phase 2 pediatric study showed a viral load decline of 1.4 log at the end of treatment in Part 2[30] - EDP-323, an RSV L-protein inhibitor, demonstrated an 85-87% reduction in viral load AUC in a human challenge model[42] Immunology - KIT Inhibitor (EPS-1421) - EPS-1421 inhibits KIT with nanomolar potency in both binding and cellular assays[63] - EPS-1421 exhibits greater than 500-fold selectivity for KIT over other KIT family members[68] - In mice, EPS-1421 inhibits SCF-mediated histamine release with an EC50 (free drug) of 0.25nM[65] Immunology - STAT6 Inhibitor - Prototype STAT6 inhibitors exhibit nanomolar inhibition in biochemical and cellular assays[84] - Prototype STAT6 inhibitor demonstrates good selectivity, with greater than 1000x biochemical selectivity for STAT6 over other STATs[88] - Prototype STAT6 oral inhibitor results in complete inhibition of pSTAT6 in a mouse model[93]