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    Long-term efficacy and safety of entrectinib in ROS1 fusion-positive NSCLC

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    2022 Drilon A et al JTO CRR.pdf
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    Authors
    Drilon, A.
    Chiu, C. H.
    Fan, Y.
    Cho, B. C.
    Lu, S.
    Ahn, M. J.
    Krebs, Matthew G
    Liu, S. V.
    John, T.
    Otterson, G. A.
    Tan, D. S. W.
    Patil, T.
    Dziadziuszko, R.
    Massarelli, E.
    Seto, T.
    Doebele, R. C.
    Pitcher, B.
    Kurtsikidze, N.
    Heinzmann, S.
    Siena, S.
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    Affiliation
    Department of Medicine, Memorial Sloan Kettering Cancer Center, and Weill Cornell Medical College, New York
    Issue Date
    2022
    
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    Abstract
    Introduction: Entrectinib is an approved tyrosine kinase inhibitor (TKI) for ROS1 fusion-positive NSCLC. An updated integrated analysis of entrectinib from the ALKA-372-001, STARTRK-1, and STARTRK-2 trials is presented, with substantially longer follow-up, more patients, and the first description of the median overall survival (OS). An exploratory analysis of entrectinib in ROS1 fusion-positive NSCLC with the central nervous system (CNS)-only progression post-crizotinib is reported. Methods: Adults with ROS1 fusion-positive, locally advanced or metastatic NSCLC who received at least one dose of entrectinib and had 12 months or longer of follow-up were included in the analysis. Co-primary end points were confirmed objective response rate (ORR) and duration of response (DoR) by blinded independent central review. The data cutoff was on August 31, 2020. Results: The efficacy-assessable population comprised 168 ROS1 TKI-naïve patients. The median survival follow-up was 29.1 months (interquartile range, 21.8-35.9). The ORR was 68% (95% confidence interval [CI]: 60.2-74.8); the median DoR was 20.5 months. The median progression-free survival (PFS) was 15.7 months and the median OS was 47.8 months. In the 25 patients with measurable baseline CNS metastases, the intracranial ORR was 80% (95% CI: 59.3-93.2), median intracranial DoR was 12.9 months, and median intracranial PFS was 8.8 months. Among 18 patients with CNS-only progression on previous crizotinib treatment, two achieved a partial response (11%) and four had stable disease (22%). In seven patients with measurable CNS disease from this cohort, the intracranial ORR was 14% (1 partial response). Conclusions: Entrectinib is active and achieves prolonged survival in ROS1 TKI-naïve patients with ROS1 fusion-positive NSCLC. Modest activity is seen in patients with CNS-only progression post-crizotinib.
    Citation
    Drilon A, Chiu CH, Fan Y, Cho BC, Lu S, Ahn MJ, et al. Long-Term Efficacy and Safety of Entrectinib in ROS1 Fusion–Positive NSCLC. Vol. 3, JTO Clinical and Research Reports. Elsevier BV; 2022. p. 100332.
    Journal
    JTO Clinical and Research Reports
    URI
    http://hdl.handle.net/10541/625357
    DOI
    10.1016/j.jtocrr.2022.100332
    PubMed ID
    35663414
    Additional Links
    https://dx.doi.org/10.1016/j.jtocrr.2022.100332
    Type
    Article
    Language
    en
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.jtocrr.2022.100332
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