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Phase I study of ceritinib (LDK378) in Japanese patients with advanced, anaplastic lymphoma kinase-rearranged non-small-cell lung cancer or other tumors

Nishio, Makoto, Murakami, Haruyasu, Horiike, Atushi, Takahashi, Toshiaki, Hirai, Fumihiko, Suenaga, Naoko, Tajima, Takeshi, Tokushige, Kota, Ishii, Masami, Boral, Anthony, Robson, Matthew and Seto, Takashi (2015) Phase I study of ceritinib (LDK378) in Japanese patients with advanced, anaplastic lymphoma kinase-rearranged non-small-cell lung cancer or other tumors. Journal of Thoracic Oncology, 10 (7). pp. 1058-1066. ISSN 1556-1380


Introduction: Anaplastic lymphoma kinase (ALK)-rearranged non-small-cell lung cancer (NSCLC) is sensitive to ALK inhibitors, but resistance develops. This study assessed the maximum-tolerated dose, safety, pharmacokinetics (PK), and antitumor activity of ceritinib, a novel ALK inhibitor (ALKi), in Japanese patients with ALK-rearranged malignancies. Methods: This phase I, multicenter, open-label study (NCT01634763) enrolled adult patients with ALK-rearranged (by fluorescence in situ hybridization and/or immunohistochemistry) locally advanced/metastatic malignancy that had progressed despite standard therapy. The study comprised two parts: dose escalation and dose expansion. Ceritinib (single-dose) was administered orally in the 3-day PK run-in period, then once daily, in 21-day cycles. Adaptive dose escalations were guided by a Bayesian model. Results: Twenty patients (80% with ALKi treatment history [ALKi-pretreated]; 19 NSCLC; one inflammatory myofibroblastic tumor) received ceritinib 300 to 750 mg (19 during dose escalation, one in dose expansion). Two dose-limiting toxicities occurred: grade 3 lipase increase (600 mg); grade 3 drug-induced liver injury (750 mg). The most common adverse events were gastrointestinal (nausea: 95%; diarrhea, vomiting: 75%). Ceritinib PK profile was dose proportional across 300 to 750 mg dosages; steady state was reached by day 15. Overall response rate was 55% (11 of 20 patients). Among patients with NSCLC, partial response was observed in two of four ALKi-naive patients, five of nine crizotinib-pretreated patients, two of four alectinib-pretreated patients, and one of two crizotinib and alectinib/ASP3026 pretreated patients. The ASP3026-pretreated inflammatory myofibroblastic tumor patient achieved partial response. Conclusions: Ceritinib maximum-tolerated dose was 750 mg once daily in Japanese patients. Antitumor activity was observed irrespective of prior ALKi treatment history. Dose expansion, examining the activity of ceritinib in alectinib-resistant patients, is ongoing.

Item Type: Article
Keywords: Alectinib ALK rearranged Ceritinib non-small-cell lung cancer
Date Deposited: 21 Nov 2017 00:45
Last Modified: 25 Jan 2019 00:45


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