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S. Matsumoto



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    P1.03 - Chemotherapy/Targeted Therapy (ID 689)

    • Event: WCLC 2017
    • Type: Poster Session with Presenters Present
    • Track: Chemotherapy/Targeted Therapy
    • Presentations: 1
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      P1.03-005 - Phase 2 Study of Ceritinib in Patients with ALK+ NSCLC with Prior Alectinib Treatment in Japan: ASCEND-9 (ID 8417)

      09:30 - 16:00  |  Author(s): S. Matsumoto

      • Abstract
      • Slides

      Background:
      ALK inhibitors are a standard of care for ALK-positive metastatic NSCLC and several ALK inhibitors are currently available. Alectinib is one of the recommended therapies as 1[st] line treatment for ALK-positive metastatic NSCLC in Japan based on robust progression-free survival (PFS) prolongation and favorable safety profile. However, even with treatment with alectinib, these cancers eventually progress after acquiring resistance against alectinib. Therefore, which drug should be chosen after alectinib is relevant clinical question. Recently, ceritinib, which is a highly selective oral ALK inhibitor, has demonstrated superior activity compared to chemotherapy in the 1[st] line setting for patients with ALK-positive metastatic NSCLC (ASCEND-4, Soria et al. Lancet 2017). It also showed clinically meaningful benefit in patients who failed to prior ALK inhibitor treatment including alectinib (Nishio et al. J Thorac Oncol 2015). In this study, we tried to evaluate efficacy and safety of ceritinib in ALK-positive metastatic NSCLC patients who progressed on alectinib treatment.

      Method:
      ASCEND-9 (NCT02450903) is a single-arm, open-label, multicenter, phase 2 study of ceritinib 750 mg/day (fasted) in adult patients with ALK+ (Vysis ALK Break Apart FISH Probe kit test), stage IIIB/IV NSCLC previously treated with alectinib and had subsequent disease progression. Other key inclusion criteria are ≥ 1 measurable lesion per RECIST 1.1 and WHO PS 0-1. Patients must have received previous treatment with alectinib, but prior crizotinib and/or up to 1 chemotherapy regimen are allowed. Patients with asymptomatic CNS metastases are eligible. Ceritinib may be continued beyond RECIST-defined PD. Primary endpoint is investigator assessed-overall response rate (ORR) per RECIST 1.1. Secondary endpoints include disease control rate (DCR), time to response (TTR), duration of response (DOR), PFS and safety. Biomarkers are evaluated for exploratory purpose.

      Result:
      Twenty patients were enrolled at 10 centers in Japan from Aug 2015 to Feb 2017. At present, the study is underway, and the results including ORR, DCR, TTR, DOR, PFS, safety and exploratory biomarker data will be presented at the 2017 WCLC.

      Conclusion:
      Section not applicable.

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