• Chad Glisch, Seyedehtanaz Saeidzadeh, Travis Snyders, Stephanie Gilbertson-White, Yuya Hagiwara, and Laurel Lyckholm.
• Division of Hematology and Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
• J Palliat Med. 2020 Jul 1; 23 (7): 977-979.

Abstract Background: Immune checkpoint inhibitors (ICIs) have revolutionized treatment for many patients with advanced cancer. Little is known about ICI use near the end of life. Objective: To describe ICI use near the end of life. Design: Retrospective study of patients who received ICIs and died. Setting/Subjects: Patients treated with ICIs who died between August 2014 and December 2018 (N = 441) at the University of Iowa. Measurements: Comparisons were made between patients who received ICIs ≤30 days versus patients who received ICIs >30 days before death. The same analysis was done using a cutoff of 90 days. Results: Two hundred ninety-four (67%) patients received ICIs in the last 90 days of life and 117 (27%) patients received ICIs in the last 30 days of life. Patients who received ICIs in the last 30 days of life received fewer mean doses and more often ≤3 total doses. They also had higher mean Eastern Cooperative Oncology Group (ECOG) scores, more patients with ECOG ≥3, higher rates of dying in the hospital, and lower hospice enrollment. Patients treated with ICIs in the last 90 days of life received fewer doses, more often ≤3 total doses, had a higher mean ECOG score, more patients with ECOG ≥3, and lower hospice enrollment. $7.1 million USD was spent on ICI medications in the last 90 days of life. Conclusion: ICI use near the end of life is associated with poor performance status, lower hospice enrollment, dying in the hospital, financial toxicity, and minimal clinical benefit.

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