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Tomosue Kajiwara



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    MA21 - Non EGFR/MET Targeted Therapies (ID 153)

    • Event: WCLC 2019
    • Type: Mini Oral Session
    • Track: Targeted Therapy
    • Presentations: 1
    • Now Available
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      MA21.05 - Phase II Trial of the Combination of Alectinib with Bevacizumab in ALK-Positive Nonsquamous Non-Small Cell Lung Cancer (Now Available) (ID 1306)

      14:30 - 16:00  |  Author(s): Tomosue Kajiwara

      • Abstract
      • Presentation
      • Slides

      Background

      Alectinib is a 2nd generation highly selective anaplastic lymphoma kinase (ALK) inhibitor. Although alectinib has improved progression-free survival (PFS) in patients with ALK-positive Non-Small Cell Lung Cancer (NSCLC), there are limited treatment options after progression of alectinib. Recent evidences have described promising results of the combination of bevacizumab with EGFR-TKIs, cytotoxic chemotherapies and immune-checkpoint inhibitors. We report the results from a phase II study of the combination of alectinib with bevacizumab in ALK-positive Nonsquamous NSCLC patients who were treated with alectinib and showed disease progression (UMIN 000017828).

      Method

      Patients with ALK+ Nonsquamous NSCLC who had progressed after alectinib treatment were enrolled. Primary objective of this study was PFS and safety. Secondary endpoints included overall survival, objective response rate and disease control rate.

      Result

      Twelve patients received alectinib (600 mg/day) with bevacizumab (15 mg/kg, Q3W). Nine patients were treated with crizotinib and alectinib, and 2 patients were treated with crizotinib, alectinib and ceritinib before enrollment to this study. The median PFS was 3.1 months (95% CI 1.2-16.1) and the median survival time was 32 months (95% CI 8.3-NE). The median treatment cycle was 5 (range, 1-37) and 3 patients received alectinib with bevacizumab more than 20 cycles. The objective response rate and disease control rate were 8% and 67%, respectively. The most common treatment related adverse events were decreased appetite (42%), proteinuria (42%), hypertension (33%), anemia (33%) and fatigue (33%). Treatment related adverse events of grade > 3 were anemia (8%), proteinuria (8%), diarrhea (8%) and hypokalemia (8%). No severe adverse events were observed.

      Conclusion

      This is the first study to investigate the combination of alectinib and bevacizumab. This combination had clinical efficacy and was well tolerated.

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