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S. Stonehouse-Lee



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    P3.02c - Poster Session with Presenters Present (ID 472)

    • Event: WCLC 2016
    • Type: Poster Presenters Present
    • Track: Advanced NSCLC
    • Presentations: 1
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      P3.02c-028 - Outcomes of Nivolumab in Elderly Patients (pts) with Non-Small Cell Lung Cancer (NSCLC) (ID 5084)

      14:30 - 15:45  |  Author(s): S. Stonehouse-Lee

      • Abstract

      Background:
      In randomized trials of nivolumab in NSCLC, less than 10% of pts were ≥75 years old, and all had Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0-1. The effectiveness of nivolumab in elderly pts with NSCLC treated in routine practice has not been previously described.

      Methods:
      We conducted a retrospective cohort study of pts with advanced NSCLC treated with nivolumab outside of clinical trials at the University of Pennsylvania between March 2015 and March 2016. Logistic regression and Cox proportional hazards models were used to evaluate the association of age (≥75 vs. <75 years) with overall response rate (ORR), progression-free survival (PFS), and overall survival (OS), adjusting for ECOG PS (0-1 vs. ≥2), sex, smoking history [heavy (≥10 pack-years) vs. light/never (<10 pack-years)], and number of prior systemic therapies (1 vs. ≥2).

      Results:
      Of 175 pts treated with nivolumab, 43 (25%) were ≥75 years old and 42 (24%) had ECOG PS ≥2. Ninety-five pts (54%) were female, 147 (84%) had heavy smoking history, and 81 (46%) had received ≥2 prior systemic therapies. ORR was 19.4%, with median PFS and OS of 2.1 and 6.5 months, respectively. Age ≥75 years was not associated with ORR (OR 1.0, 95% CI 0.4-2.5; p=0.97), PFS (HR 0.71, 95% CI 0.5-1.1; p=0.12), or OS (HR 0.8, 95% CI 0.5-1.4; p=0.4; Figure 1). ECOG PS ≥ 2 was associated with lower ORR (7.1% vs. 23.3%; OR 0.25, 95% CI 0.07 – 0.88; p=0.03), inferior PFS (median 1.8 vs. 2.3 months; HR 1.9, 95% CI 1.3 – 2.8; p=0.001), and inferior OS (median 3.6 vs. 7.8 months; HR 2.6, 95% CI 1.6 – 4.1; p<0.001). Figure 1



      Conclusion:
      In a large NSCLC cohort treated outside of clinical trials, elderly pts gained similar benefit from nivolumab compared to younger pts. Pts with poor performance status had inferior outcomes regardless of age.