A Study of BH-30643 in Subjects With Locally Advanced or Metastatic NSCLC Harboring EGFR and/or HER2 Mutations

This Phase1/2, open label, multicenter study will assess the safety, tolerability, pharmacokinetics (PK), pharmacodynamics and preliminary anti-tumor activity of BH-30643 in patients with NSCLC having EGFR and/or HER2 mutations. Phase 1 will determine the recommended Phase 2 dose (RP2D) and, if applicable, the maximum tolerated dose (MTD) of BH-30643. Phase 2 will further evaluate the antitumor efficacy and safety in specified cohorts determined by EGFR/HER2 mutation subtypes and/or treatment history at the RP2D, as well as the population PK.

BH-30643 is a novel, orally available, non-covalent, macrocyclic, mutant selective OMNI-EGFR inhibitor that targets a broad diversity of mutations in the EGFR kinase domain. These include EGFR classical mutations (e.g., ex19del and L858R) as well as less common (atypical) mutations (including G719X, S768I, L861Q, E709X, and beyond). BH-30643 also overcomes a variety of mutations which can cause resistance to previously approved EGFR TKIs (including both C797S and T790M). BH-30643 was designed to be selective over wildtype EGFR and HER2.