US FDA Grants Priority Review to Taletrectinib in ROS1+ Advanced NSCLC

U.S. Food and Drug Administration Accepts for Priority Review to Nuvation Bio’s New Drug Application for Taletrectinib for the Treatment of Advanced ROS1-positive Non-Small Cell Lung Cancer

New Drug Application (NDA) is based on pooled data from the pivotal Phase 2 TRUST-I and TRUST-II studies of taletrectinib that demonstrated durable responses and prolonged progression-free survival in patients with advanced ROS1-positive (ROS1+) non-small cell lung cancer (NSCLC)

Nuvation Bio Inc. announced that the U.S. FDA has accepted the company’s NDA for taletrectinib, an investigational next-generation ROS1 tyrosine kinase inhibitor (TKI), for the treatment of advanced ROS1+ NSCLC (line agnostic). The U.S. FDA has granted the application Priority Review and assigned a Prescription Drug User Fee Act (PDUFA) goal date of June 23, 2025. Priority Review designation underscores the significant advancement taletrectinib may offer patients with ROS1+ NSCLC, for which there remains a high unmet need for new treatment options. Taletrectinib previously received Orphan Drug Designation and is the only ROS1 TKI currently in development that has received Breakthrough Therapy Designation from the U.S. FDA for the treatment of patients with locally advanced or metastatic ROS1+ NSCLC who either have or have not previously been treated with ROS1 TKIs.

The NDA is based on the pooled results from the pivotal Phase 2 TRUST-I and TRUST-II studies of taletrectinib, which were presented at the European Society of Medical Oncology (ESMO) Congress in September 2024.

About Taletrectinib

Taletrectinib is an oral, potent, central nervous system-active, selective, next-generation ROS1 inhibitor specifically designed for the treatment of patients with advanced ROS1+ NSCLC. Taletrectinib is being evaluated for the treatment of patients with advanced ROS1+ NSCLC in two Phase 2 single-arm pivotal studies: TRUST-I (NCT04395677) in China, and TRUST-II (NCT04919811), a global study.

Taletrectinib has been granted Orphan Drug Designation by the U.S. FDA for the treatment of patients with ROS1+ NSCLC and other NSCLC indications, and Breakthrough Therapy Designations by both the U.S. FDA and China’s National Medical Products Administration (NMPA) for the treatment of patients with locally advanced or metastatic ROS1+ NSCLC. Based on pooled results of the TRUST-I and TRUST-II clinical studies, the U.S. FDA has accepted for Priority Review Nuvation Bio’s NDA for taletrectinib for the treatment of patients with advanced ROS1+ NSCLC (line agnostic, full approval). Based on results of the TRUST-I clinical study, China’s NMPA approved taletrectinib for the treatment of adult patients with locally advanced or metastatic ROS1+ NSCLC who have previously been treated with a ROS1 TKI and has accepted and granted Priority Review Designation to an NDA for patients who have not previously been treated with a ROS1 TKI.

Summary of the Pivotal Pooled TRUST-I and TRUST-II Data

The pooled efficacy and safety data from the TRUST-I and TRUST-II studies presented at ESMO are as of June 7, 2024; both studies remain ongoing. The ESMO data set includes 337 patients with advanced ROS1+ NSCLC who received 600mg of taletrectinib orally once daily in 21-day cycles.

The primary endpoint of these registrational studies is confirmed objective response rate (cORR) as assessed by an independent review committee (IRC). Key secondary endpoints include intracranial cORR, duration of response (DOR), progression-free survival (PFS), and safety.