Purpose

Phase 1/2, dose escalation and expansion study designed to evaluate the safety and tolerability of NVL-655, determine the recommended phase 2 dose (RP2D), and evaluate the antitumor activity in patients with advanced ALK- positive (ALK+) NSCLC and other solid tumors. Phase 1 will evaluate the overall safety and tolerability of NVL-655 and will determine the RP2D and, if applicable, the MTD of NVL-655 in patients with advanced ALK+ solid tumors. Phase 2 will determine the objective response rate (ORR) as assessed by Blinded Independent Central Review (BICR) of NVL-655 at the RP2D. Secondary objectives will include the duration of response (DOR), time to response (TTR), progression-free survival (PFS), overall survival (OS), and clinical benefit rate (CBR) of NVL-655 in patients with advanced ALK-positive NSCLC and other solid tumors.