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J. Zhang



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    PL04a - Plenary Session: Immune Checkpoint Inhibitors in Advanced NSCLC (ID 430)

    • Event: WCLC 2016
    • Type: Plenary
    • Track: Chemotherapy/Targeted Therapy/Immunotherapy
    • Presentations: 1
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      PL04a.01 - Health-Related Quality of Life for Pembrolizumab vs Chemotherapy in Advanced NSCLC with PD-L1 TPS ≥50%: Data from KEYNOTE-024 (Abstract under Embargo until December 7, 7:00 CET) (ID 7153)

      08:45 - 08:55  |  Author(s): J. Zhang

      • Abstract
      • Presentation
      • Slides

      Background:
      In KEYNOTE-024 (NCT02142738), pembrolizumab provided superior progression-free survival (PFS) over platinum-based chemotherapy as first-line therapy for patients with advanced non-small cell lung cancer (NSCLC) with PD-L1 expression on ≥50% of tumor cells (ie, PD-L1 tumor proportion score [TPS] ≥50%) and no sensitizing EGFR or ALK aberrations (HR 0.50, P < 0.001). Despite a 44% crossover rate from chemotherapy to pembrolizumab, pembrolizumab also significantly improved overall survival (OS) (HR 0.60, P = 0.005). Any-grade (73% vs 90%) and grade 3-5 (27% vs 53%) treatment-related adverse events were less frequent with pembrolizumab. Health-related quality of life (HRQoL) is an important consideration for anticancer therapy, particularly in the first-line setting. We present data from the prespecified exploratory patient-reported outcomes (PRO) analysis of KEYNOTE-024.

      Methods:
      305 patients were randomized to pembrolizumab 200 mg Q3W or investigator-choice platinum-doublet chemotherapy plus optional pemetrexed maintenance therapy for nonsquamous disease. The EORTC QLQ-C30 and QLQ-LC13 were administered at cycles 1-3 and every 9 weeks thereafter. The key PRO end points were change from baseline to week 15 in the QLQ-C30 global health status/QoL score and time to deterioration in the QLQ-LC13 composite of cough, chest pain, and dyspnea. PROs were analyzed for all patients who received study treatment and completed ≥1 PRO instrument (n = 299).

      Results:
      Across treatment arms, PRO compliance was >90% at baseline and ~80% at week 15. Least squares (LS) mean (95% CI) change from baseline to week 15 in QLQ-C30 global health status/QoL score was 6.95 (3.29 to10.58) for pembrolizumab (n = 151) and –0.88 (–4.78 to 3.02) for chemotherapy (n = 148). The difference in LS means was 7.82 (95% CI 2.85-12.79; nominal 2-sided P = 0.002). The proportion of improved global health status/QoL score at week 15 was 40.0% for pembrolizumab and 26.5% for chemotherapy. Fewer patients in the pembrolizumab arm had deterioration in the QLQ-LC13 composite of cough, dyspnea, and chest pain (30% vs 39%), and time to deterioration was also prolonged with pembrolizumab (HR 0.66, 95% CI 0.44-0.97; nominal 2-sided P = 0.029).

      Conclusion:
      Pembrolizumab was associated with a clinically meaningful improvement in HRQoL compared with platinum-based chemotherapy. Combined with the superior PFS and OS and manageable safety profile, these data suggest pembrolizumab may be a new standard of care for first-line treatment of PD-L1–expressing advanced NSCLC.

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