Verastem reports ‘robust’ response rate in pancreatic cancer subgroup where Rasonque struggled
VS-7375, an oral selective KRAS G12D dual ON/OFF inhibitor, produced a 50% confirmed ORR in second-line metastatic pancreatic ductal adenocarcinoma at 900 mg daily, versus 24% for Rasonque in G12D patients in the Phase 3 RASolute 302 trial. In third- and fourth-line mPDAC the confirmed ORR was 36%, with 43% confirmed ORR in NSCLC at 600 mg and 33% unconfirmed ORR in third-line colorectal cancer combined with anti-EGFR therapy. Discontinuation due to adverse events was 2% across the 295-patient TARGET-D 101 trial, and Verastem will start a Phase 3 first-line mPDAC trial by year-end.
Why it matters: Allele-specific KRAS G12D inhibition may outperform the newly approved pan-RAS agent in the subgroup where Rasonque underperforms.
