“We are excited to expand our existing relationship with Pfizer to explore ERAS-007 in combination with palbociclib in RAS-mutated GI malignancies as part of our HERKULES-3 program,” said Jonathan E. Lim, M.D., Erasca’s chairman, CEO, and co-founder. “Preclinical evidence supports synergistic anti-tumor effects when downstream RAS/MAPK pathway inhibition is combined with cell cycle inhibition in CRC and PDAC. ERAS-007 blocks RAS/MAPK pathway signaling at the terminal node with robust inhibitory activity across RAS mutations, while data support palbociclib inhibition of CDK4/6 leading to cell cycle arrest. Based on their respective mechanisms of action, ERAS-007 and palbociclib offer a promising combination to overcome adaptive resistance in patients with these highly prevalent oncogenic drivers.”