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N. Patel



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    MO07 - NSCLC - Targeted Therapies II (ID 114)

    • Event: WCLC 2013
    • Type: Mini Oral Abstract Session
    • Track: Medical Oncology
    • Presentations: 1
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      MO07.11 - A randomised placebo-controlled multicentre phase II trial of erlotinib plus whole brain radiotherapy for patients with advanced non-small cell lung cancer with multiple brain metastases (TACTIC) (ID 2305)

      17:15 - 17:20  |  Author(s): N. Patel

      • Abstract
      • Presentation
      • Slides

      Background
      Median survival of non-small cell lung cancer (NSCLC) patients with brain metastases is poor. We examined concurrent erlotinib and whole brain radiotherapy (WBRT) followed by maintenance erlotinib in patients with untreated brain metastases, given the potential radiosensitising properties of erlotinib and its direct effect on brain metastases and systemic activity.

      Methods
      Eighty NSCLC patients with KPS≥70 and multiple brain metastasis were randomised to placebo (n=40) or erlotinib (100mg, n=40) given concurrently with WBRT (20 Gy in 5 fractions). Following WBRT, patients continued with placebo or erlotinib (150mg) until disease progression. The primary end-point was neurological progression-free survival (nPFS).

      Results
      Fifteen patients (37.5%) from each arm were alive and without neurological progression 2 months after WBRT. Median nPFS was 1.6 months in both arms; nPFS HR 0.95 (95% CI, 0.59-1.54; p=0.84). Median overall survival (OS) was 2.9 and 3.4 months in the placebo and erlotinib arms; HR 0.95 (95% CI, 0.58-1.55; p =0.83). The frequency of EGFR mutations was low with only 1 out of 35 (3%) patients with available samples had activating EGFR-mutations. Grade 3/4 adverse event rates were similar between the two groups (70% in each arm), except for rash 20% (erlotinib) vs. 5% (placebo), and fatigue 17% vs. 35%. No significant QoL differences were found.

      Conclusion
      Our study showed no advantage in nPFS or OS for concurrent erlotinib and WBRT followed by maintenance erlotinib in patients with predominantly EGFR wild-type NSCLC and multiple brain metastases. Future studies should focus on the role of erlotinib with or without WBRT in patients with EGFR mutations.

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