Phase 1/2, dose escalation and expansion study designed to evaluate the safety and tolerability of NVL-520, determine the recommended phase 2 dose (RP2D), and evaluate the antitumor activity in patients with advanced ROS1-positive (ROS1+) NSCLC and other advanced ROS1-positive solid tumors.
Phase 1 will determine the RP2D and, if applicable, the maximum tolerated dose (MTD) of NVL-520 in patients with advanced ROS1-positive solid tumors.
Phase 2 will determine the objective response rate (ORR) as assessed by Blinded Independent Central Review (BICR) of NVL-520 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-520 in patients with advanced ROS1-positive NSCLC and other solid tumors.
A Phase 1/2 Study of the Highly Selective ROS1 Inhibitor NVL-520 in Patients With Advanced NSCLC and Other Solid Tumors (ARROS-1)
In Phase 2, study patients will be enrolled into 5 distinct expansion cohorts:
- Cohort 2a: ROS1-positive NSCLC naïve to Tyrosine Kinase Inhibitor (TKI) therapy and up to 1 prior chemotherapy and/or immunotherapy.
- Cohort 2b: ROS1-positive NSCLC treated with 1 prior ROS1 TKI and no prior chemotherapy or immunotherapy.
- Cohort 2c: ROS1-positive NSCLC treated with 1 prior ROS1 TKI and 1 prior platinum-based chemotherapy with or without immunotherapy.
- Cohort 2d: ROS1-positive NSCLC treated with ≥2 prior ROS1 TKIs and up to 1 prior chemotherapy and/or immunotherapy.
- Cohort 2e: ROS1-positive solid tumor and progressed on any prior therapy.