“Dosing the first patients in these combination cohorts for HPN328 with atezolizumab in patients with SCLC marks a significant milestone for this clinical program,” said Luke Walker, M.D., Chief Medical Officer for Harpoon Therapeutics. “Building on the strength of our Phase 1 data, we remain committed to realizing the full potential of HPN328 as an important treatment option for patients with SCLC and other neuroendocrine tumors across early and late lines of therapy.”