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  • Title: Comparative efficacy of brigatinib versus ceritinib and alectinib in patients with crizotinib-refractory anaplastic lymphoma kinase-positive non-small cell lung cancer.
    Author: Reckamp K, Lin HM, Huang J, Proskorovsky I, Reichmann W, Krotneva S, Kerstein D, Huang H, Lee J.
    Journal: Curr Med Res Opin; 2019 Apr; 35(4):569-576. PubMed ID: 30286627.
    Abstract:
    OBJECTIVE: Brigatinib, ceritinib, and alectinib are approved to treat crizotinib-refractory anaplastic lymphoma kinase-positive (ALK+) non-small cell lung cancer (NSCLC), but no trial has compared them head-to-head. A matching-adjusted indirect comparison (MAIC) was conducted to estimate the relative efficacy of these agents in the crizotinib-refractory setting. METHODS: MAIC is a propensity score-type method that adjusts for differences in baseline characteristics between trials to estimate relative efficacy. Analyses were based on patient-level data from the ALTA trial for brigatinib and published summary-level trial data from ASCEND-1 and ASCEND-2 for ceritinib and NP28761 and NP28673 for alectinib. Objective response rate (ORR), progression-free survival (PFS), and overall survival (OS) were compared. RESULTS: After matching, all key baseline characteristics were balanced between trials. Compared with ceritinib, brigatinib was associated with longer PFS (ASCEND-1: median 15.7 vs 6.9 months, hazard ratio (HR) [95% confidence interval] = 0.38 [0.26-0.57]; ASCEND-2: median = 18.3 vs 7.2 months, HR = 0.33 [0.20-0.56]) and OS (ASCEND-1: not available; ASCEND-2: median 27.6 vs 14.9 months, HR = 0.33 [0.17-0.63]). Versus alectinib, brigatinib was associated with longer PFS (NP28761: median = 17.6 vs 8.2 months, HR = 0.56 [0.36-0.86]; NP28673: median = 17.6 vs 8.9 months, HR = 0.61 [0.40-0.93]); results for OS were inconclusive (NP28761: median = 27.6 vs 22.7 months, HR = 0.70 [0.42-1.16]; NP28673: median = 27.6 vs 26.0 months, HR = 0.66 [0.39-1.09]). ORR was similar. CONCLUSION: In crizotinib-refractory ALK + NSCLC patients, relative efficacy estimates suggest brigatinib may have prolonged PFS and OS vs ceritinib and prolonged PFS vs alectinib.
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