Background: ROS1 chromosomic rearrangement is a rare oncogenic driver, and patients with this rearrangement benefit from specific targeted treatments in the first-line setting. However, therapeutic options are limited in pretreated patients. Brigatinib is a validated drug for ALK rearrangements, and also has an in vitro activity against ROS1. In vivo efficacy is also suggested in some clinical series.
Objective: We aimed to specifically study brigatinib in patients with pretreated advanced non-small-cell lung cancer (NSCLC).
Methods: We retrospectively collected data from 20 centers in France. Brigatinib was delivered through a compassionate use program in France between 2018 and 2020. The primary endpoint was progression-free survival. Secondary endpoints were the objective response rate, overall survival, and tolerance.
Results: Twenty-five patients treated with brigatinib were included in our study. All patients were pretreated, and all of them previously received crizotinib. Median progression-free survival was 3.8 months (95% confidence interval 2.8-7.1). The objective response rate was 32%, with a disease control rate of 48%. Three patients had a prolonged response of more than 18 months at the end of data collection. We did not identify factors predictive of prolonged response. There were no grade 4 or 5 toxicities.
Conclusion: Brigatinib may represent an interesting therapeutic option for patients who have progressed after standard treatments.
© 2025. The Author(s).