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A. Pluzanski

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    ORAL 02 - PD1 Axis Immunotherapy 2 (ID 87)

    • Event: WCLC 2015
    • Type: Oral Session
    • Track: Treatment of Advanced Diseases - NSCLC
    • Presentations: 1
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      ORAL02.01 - Phase 3, Randomized Trial (CheckMate 017) of Nivolumab (NIVO) vs Docetaxel in Advanced Squamous (SQ) Cell Non-Small Cell Lung Cancer (NSCLC) (ID 736)

      10:45 - 12:15  |  Author(s): A. Pluzanski

      • Abstract
      • Presentation
      • Slides

      Treatment options for patients with advanced SQ NSCLC who fail platinum-based doublet chemotherapy (PT-DC) are limited. NIVO, a fully human IgG4 programmed death-1 (PD-1) immune checkpoint inhibitor, demonstrates activity across NSCLC histologies and is approved in the US for treatment of metastatic SQ NSCLC with progression on or after platinum-based chemotherapy. We report results from a randomized, open-label, global phase 3 study (CheckMate 017; NCT01642004) comparing NIVO vs docetaxel in patients with previously treated SQ NSCLC and disease progression during/after one prior PT-DC regimen.

      Patients (N=272) were randomized 1:1 to receive either NIVO 3 mg/kg every 2 weeks (Q2W; n=135) or docetaxel 75 mg/m[2] Q3W (n=137) until disease progression or discontinuation due to toxicity or other reasons. For NIVO patients, treatment after initial progression was permitted at the investigator’s discretion, per protocol criteria. The primary objective was overall survival (OS). Secondary objectives included investigator-assessed objective response rate (ORR; per RECIST v1.1), progression-free survival (PFS), efficacy by PD-L1 expression (PD-L1 testing not required for enrollment), patient-reported outcomes (PRO), and safety. PRO analyses are presented in a separate abstract.

      Treatment with NIVO led to 41% reduction in risk of death (hazard ratio [HR]=0.59; 95% CI: 0.44, 0.79; P=0.00025) and improved ORR (20% vs 9%; P=0.0083) and PFS (HR=0.62; 95% CI: 0.47, 0.81; P=0.0004) vs docetaxel (Table). Twenty-eight patients were treated with NIVO beyond initial progression, nine of whom demonstrated a non-conventional pattern of benefit (ie, reduction in target lesions with simultaneous appearance of new lesions, initial progression followed by tumor reduction, or no further progression for ≥2 tumor assessments). Across pre-specified cut-points (1%, 5%, and 10%), PD-L1 expression was neither prognostic nor predictive of benefit. OS HRs favored NIVO across most predefined patient subgroups. Grade 3–4 drug-related adverse events (AEs) were reported in 7% (9/131) of NIVO and 55% (71/129) of docetaxel patients. Grade 3–4 drug-related select AEs are shown below (Table). No deaths were related to NIVO vs 3 docetaxel-related deaths. Figure 1

      CheckMate 017 achieved its primary objective, demonstrating clinically superior and statistically significant OS with NIVO vs docetaxel in patients with advanced, previously treated SQ NSCLC. Benefit was seen regardless of PD-L1 status. The safety profile of NIVO 3 mg/kg Q2W is favorable vs docetaxel and consistent with prior studies. AEs were manageable with established guidelines. NIVO represents a new standard of care in this patient population. Updated OS and safety data will be presented.

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