Immune Checkpoint Inhibitors and Palliative Care at the End of Life: An Irish Multicentre Retrospective Study.
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Background and Objectives: Immune checkpoint inhibitors (ICIs) have less toxicity than standard chemotherapy and are now standard of care for many patients with advanced cancer. A manageable side effect profile and potential for durable responses may lead to aggressive care of the palliative patient. We sought to evaluate palliative care input and ICI use at the end of life at two Irish cancer centres. Methods: We identified deceased patients who received at least one dose of an ICI between first of January 2013 to 31st of December 2018. A retrospective electronic chart review was performed. Results: The electronic records of 102 patients were analysed. Fifty eight percent were male and the median age of diagnosis of advanced disease was 60 years (range 17-78). Median time from last dose of ICI to death was 57 days (range 8-574) and 20% of patients died within 30 days of last dose of ICI. Most patients, 92%, were referred to palliative care. The median time from palliative care referral to death was 64 days (range 1- 1010). In the last 30 days of life, 39% of patients attended the emergency department (ED) and 46% had at least one hospital admission. Late palliative care referrals, ≤3 months before death, were associated with hospitalisations in the last month of life (64% vs. 36%, P = .02). Timing of palliative care referral did not affect ICI prescribing at the end of life (P = 0.38). ICI use in the last 30 days of life was not associated with increased ED presentations or hospitalisations at the end of life. Patients who received ICI in the last month had a higher likelihood of in-hospital death (43% vs. 16%, P = 0.02). Conclusions: ICI within 30 days of death was associated with dying in hospital but did not lead to more hospitalisations and emergency department presentations. Early palliative care did not affect ICI use but reduced hospitalisations at the end of life.