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Belqis El Ferjani, Sheenu Chandwani, Meita Hirschmann, Seydeh Dibaj, Emily Roarty, Jianjun Zhang, Waree Rinsurnogkawong, Jeff Lewis, Jack Lee, Jack A. Roth, Stephen Swisher, John V. Heymach, Thomas Burke and George R. Simon

Background: NSCLC is the leading cause of cancer-related mortality worldwide. Recently reported clinical trials have firmly established the role of PD-1 and PD-L1 inhibitors in the treatment of patients (pts) with metastatic NSCLC (mNSCLC). We have established the prospective, observational, real-world Advanced Non-Small Cell Lung Holistic Registry (ANCHoR) to understand how the advent of immunotherapy impacts treatment choices and clinical outcomes. Objectives: The aim of this analysis is to measure the impact of immunotherapy on the treatment choice for the first-line treatment of mNSCLC and to determine the link between PD-L1 expression and the treatment choices made in routine clinical practice at the MD Anderson Cancer Center (MDA). Methods: From May 1, 2017, to June 30, 2018, English-speaking pts with mNSCLC at MDA who provided written informed consent were enrolled in ANCHoR and longitudinally followed. The PD-L1 testing rates were captured and the treatment decisions made were also captured and tabulated. The time of data cutoff for this study is June 30, 2018. Results: Of the 296 pts enrolled in the registry at the time of data cutoff, there were 49.7% males, 82.1% white, 45.9% ≥65 years old, 69.3% smokers, 83.1% with an initial stage IV diagnosis, 87.2% with nonsquamous histology, 36.1% with bone metastasis, 29.4% with brain metastasis, 43.2% with 0–1 performance status, and 21.6% with a known EGFR or ALK mutation. A total of 233 pts had been tested for PD-L1 (78.7%). Predominant reasons for not testing (63 pts) include not having available tissue (26 pts) or the test was not requested by the physician (31 pts). As of June 30, 2018, 38.5% of patients received immunotherapy as first-line therapy either as a single agent (18.9%, 56 pts) or in combination with chemotherapy (19.6%, 58 pts). Only 35.8% of the patients received platinum doublet chemotherapy alone. Two pts received chemotherapy combined with an anti-angiogenesis agent (0.68%). Targeted therapy was utilized either as a single agent (20.6%) or in combination with immunotherapy (2.4%). Conclusion: Immunotherapy is now utilized as a single agent or in combination in more than one-third of patients with mNSCLC. These numbers are expected to increase as data from recently reported studies get incorporated into common clinical practice. Compared to historic experience, there has been a dramatic decline in the use of chemotherapy with an anti-angiogenesis agent.