The study consists of 2 phases, Phase 1a (dose escalation) and Phase 1b (dose expansion). In Phase 1a, participants with non-squamous Endothelial Growth Factor Receptor Wild type (EGFR Wt) NSCLC, platinum resistant ovarian cancer (PROC), and endometrial cancer will be enrolled. In Phase 1b, non-squamous EGFR Wt NSCLC expansion cohort(s) will be opened, based on the safety, tolerability, PK, and preliminary antitumor data in Phase 1a.
In Phase 1a of the study, HWK-007 will initially be administered as an intravenous (IV) infusion every 3 weeks (Q3W).