Efficacy and safety of Nivolumab in older patients with pretreated lung cancer: A subgroup analysis of the Galician lung cancer group.

BACKGROUND: Nivolumab is an anti PD1 immunotherapy drug approved for advanced Non-Small Cell Lung Cancer (NSCLC) patients who previously received at least one prior line of treatment. Older patients are often not represented in clinical trials and drugs with acceptable safety profiles are necessary. We aim to report the efficacy and safety profile of Nivolumab in the real-world older subgroup of the Galician lung cancer group study. PATIENTS AND METHODS: We retrospectively reviewed 188 advanced NSCLC patients treated with at least one prior therapy. We collected data from patients who were ≥70 years old treated with Nivolumab in second or subsequent lines. Patient characteristics, treatment efficacy (overall survival, progression-free survival, and response rate), and safety profile were reported. RESULTS: Thirty-eight patients aged ≥70 years were included in the subgroup analysis. The median age was 74.5 years, a high percentage of patients were males (95%), most had a Performance Status of 1 (79%) and only 13% were non-smokers. The predominant histology was adenocarcinoma (53%), and 18% of patients received 2 or more lines. The median Progression-Free Survival was 7.53 months (CI 4.3-17.3, p = 0.15) and the median Overall Survival was 14.85 months (CI 10.5-20.7, p = 0.44). The objective response rate was 42%. No new adverse events were reported in comparison to a global population. CONCLUSIONS: The efficacy and safety profile of Nivolumab in advanced NSCLC patients treated with at least one prior therapy and age ≥70 years old can be overlapped to a global population. Further prospective trials are needed to define and confirm these results.

Real world data of nivolumab for previously treated non-small cell lung cancer patients: a Galician lung cancer group clinical experience.

BACKGROUND: Recently, immunotherapy has changed the standard of treatment in non-small cell lung cancer (NSCLC). Outside clinical trials, data of real life is lacking. This is an observational study that represents the real world experience with nivolumab in pretreated NSCLC. METHODS: Eligibility criteria included, histologically confirmed NSCLC, stage IIIB and IV, evaluable disease and at least one prior therapy. Patients received nivolumab until progressive disease (PD) or unacceptable toxicity. The main aim of the study was to report the efficacy and safety profile of Nivolumab in pretreated patients with advanced NSCLC of our everyday clinical practice. The secondary aim was to perform subgroup analysis by clinical features. RESULTS: From August of 2015 to January of 2017, 188 patients were enrolled. The patients demographics were: median age 58 years, 144 male; 17 never smoker and 171 former/current smoker; 112 adenocarcinoma, 66 squamous-cell carcinoma and 10 not otherwise specified (NOS); 61 stage IIIB and 127 stage IV; 15 performance status (PS) 0, 154 PS 1 and 19 PS 2; 5 epidermal growth factor receptor (EGFR) and 1 anaplastic lymphoma kinase (ALK); 42 with central nervous system (CNS) metastases; and 71 received 2 or more prior therapy lines. Of the 188 patients enrolled, 25 (13.3%) were not evaluated, 3 (1.6%) had complete response (CR), 45 (23.9%) partial response (PR), 48 (25.5%) disease stabilization (DS) and 67 (35.6%) PD. The median of progression-free survival (PFS) was 4.83 months (95% CI, 3.6-5.9) and overall survival (OS) was 12.85 months (95% CI, 9.07-16.62). The subgroup analysis revealed statistical significance in OS for patients with CNS metastases 14.8 months (95% CI, 11.5-17.3) vs. 5.09 months (95% CI, 0.3-9.8) and also PS 0 [not reached (NR)] vs. PS 1 11.7 months vs. PS 2 3.4 months (95% CI, 2.3-4.4). The safety profile was in accordance with the literature data. CONCLUSIONS: This study represents the real word experience with nivolumab and the results are consistent with previously reported in clinical trials. PS 2 and the presence of CNS metastases are associated with poor prognosis.