Real-world treatment outcomes with brigatinib in patients with pretreated ALK+ metastatic non-small cell lung cancer
Sanjay Popat, Odd Terje Brustugun, J. Cadranel, Enriqueta Felip, Marina Chiara Garassino, Frank Griesinger, Åslaug Helland, Maximilian J. Hochmair, M. Pérol, Nawal Bent‐Ennakhil, Christian Kruhl, Silvia Novello
Abstract
BACKGROUND: The next-generation ALK inhibitor brigatinib is approved for use in patients with ALK inhibitor-naïve ALK-positive advanced NSCLC and in patients previously treated with crizotinib. A phase II trial showed that brigatinib is active in patients with ALK-positive metastatic NSCLC (mNSCLC) who had progressed on prior crizotinib (response rate 56 %, median PFS 16.7 months, median OS 34.1 months). We report final data from the UVEA-Brig study of brigatinib in ALK inhibitor-pretreated ALK-positive mNSCLC in clinical practice. METHODS: UVEA-Brig was a retrospective chart review of patients treated with brigatinib in Italy, Norway, Spain and the UK in an expanded access program. Adults with ALK-positive mNSCLC, including those with brain lesions, resistant to or intolerant of ≥1 prior ALK inhibitor and ECOG performance status ≤3 were eligible. Patients received brigatinib 180 mg once daily with a 7-day lead-in at 90 mg. The objectives were to describe patient characteristics, clinical disease presentation, treatment regimens used and clinical outcomes. RESULTS: Data for 104 patients (male: 43 %; median age: 53 [29-80] years; ECOG performance status 0/1/2/3: 41/41/10/5 %; brain/CNS metastases: 63 %) were analyzed. Patients had received a median of 2 (1-6) lines of systemic therapy prior to brigatinib (37.5 % received ≥3) and a median of 1 (1-5) lines of prior ALK inhibitor-containing therapy (crizotinib 83.6 %; ceritinib 50.0 %; alectinib 6.7 %; lorlatinib 4.8 %). At the time of analysis, 77 patients had discontinued brigatinib. Overall, the response rate was 39.8 %, median PFS was 11.3 (95 % CI:8.6-12.9) months and median OS was 23.3 (95 % CI: 16.0-NR) months. Four patients discontinued brigatinib treatment due to adverse events. 53 patients received systemic therapy after brigatinib, 42 with an ALK inhibitor (lorlatinib, n = 34). CONCLUSIONS: These real-world data indicate the activity and tolerability of brigatinib in patients with ALK-positive mNSCLC who were more heavily pretreated than patients included in clinical trials.