Long-Term Outcomes of Crizotinib Treated ALK-Positive Lung Cancer Patients: A Retrospective Audit of Prospective Data from Resource-Constrained Settings
SOUTH ASIAN JOURNAL OF CANCER(2023)
摘要
Abstract Akhil Kapoor Purpose Crizotinib has been one of the standard treatment options for the treatment of anaplastic lymphoma kinase (ALK) rearranged non-small cell lung cancer (NSCLC) based on higher progression-free survival (PFS) and objective response rates in phase III clinical trials. However, real-world data about the long-term efficacy and toxicity of crizotinib is limited. Methods A retrospective analysis of all patients with ALK-positive NSCLC, treated with crizotinib between March 2014 and December 2016, was performed. The main outcomes measured were PFS, overall survival (OS), and adverse effects. Results One hundred and eighty-eight patients treated with crizotinib during this period were included in this study. The median age was 50 years (range: 24–74) with a majority being males (73.2%) and 80.3% with a performance status of 0 to 1. The median duration of follow-up was 49.4 months (range: 3.4–86.3%). The median PFS of crizotinib was 17.3 months (95% confidence interval [CI], 13.0–21.6) and 12.8 months (95% CI, 8.1–17.6) when used in first line or subsequent lines, respectively. The median OS was 38.3 months (95% CI, 28.4–48.2). The patients who received crizotinib in the first line had a median OS of 45.5 months (95% CI, 29.6–61.4) as compared with 29.7 months (95% CI, 22.2–37.2) for those who received in subsequent line (hazard ratio, 0.6, 95% CI, 0.4–0.9, p =0.022). The most common all grade toxicities include transaminitis, anemia, fatigue, and corrected QT prolongation. Conclusion This real-world study confirms the long-term beneficial effects of crizotinib in ALK rearranged NSCLC with favorable toxicity profile like that of the registration studies, in resource constrained settings.
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关键词
crizotinib,ALK-positive,lung cancer,long-term outcomes
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