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The link between palliative care and oncology must continue to develop, taking into account advances in treatment.Immune checkpoint inhibition (ICI) for metastatic melanoma is associated with different types of response, making it difficult to assess the benefits to the patient. Some clinical trials suggest a survival advantage of ICI even in the absence of an objective radiographic response. The aim of this study is to assess the impact of continuing ICI after progression of the disease on the overall survival (OS) in a cohort of final-line metastatic melanoma patients. Clinical data from 120 patients with metastatic melanoma were collected via Melbase, a French multicentric biobank, prospectively enrolling unresectable melanoma. Two groups were defined: patients continuing final-line ICI at progression (treated) and patients stopping ICI at progression (controls). The primary end-point is the OS from progression. Propensity score weighting was used to correct for indication bias. From the 120 patients, 72 (60%) continued ICI. Median OS from progression was 4.2 months [95% confidence interval (CI) 2.6-6.27] in the treated group and median OS was 1.3 months (95% CI 0.95-1.74) in the control group ( P  < 0.0001). The calculated hazard ratio was 0.20 (0.13-0.33). Continued ICI was discovered to have an association with a higher rate of hospitalization at the end of life; more treatments received in the last 15 days of life and less utilization of specialist palliative care. This study discovered that patients with metastatic melanoma show a significant decrease in the instantaneous probability of mortality when they continue with finale-line ICI after progression., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)

Background: Nivolumab obtained approval in advanced melanoma (AM) with weight-adjusted dose (WAD) administration (3 mg/kg/2 weeks). In 2018, the dosage regimen was changed to flat dose (FD) administration (240 mg/2 weeks or 480 mg/4 weeks) based on a modeling study, without clinical data., Methods: AM patients have been prospectively included in the French national multicenter MelBase database since 2013. First-line patients treated with nivolumab monotherapy were included in the WAD or FD groups of this study. The primary end point was the incidence of grade ≥3 immune-related adverse events (irAEs). Secondary end points were incidence of any grade irAEs, and overall survival (OS) and progression-free survival (PFS). Inverse probability of treatment weighting was used to balance groups on their baseline characteristics., Results: Between 2015 and 2022, 348 patients were included: 160 in the WAD and 188 in the FD groups. In the FD group, 45% and 27% of patients weighed <75 kg and >85 kg, respectively. Grade ≥3 and any grade irAEs rates were 13.1% versus 11.7% (p = .8) and 63.1% versus 67.0% (p = .5) in the WAD and FD groups, respectively. After weighting, median PFS was 3.1 and 3.7 months (hazard ratio [HR], 0.84; 95% confidence interval [CI], 0.65-1.07), and median OS was 24.8 and 37.0 months (HR, 0.74; 95% CI, 0.54-1.01) in the WAD and FD groups, respectively., Conclusions: There was no difference in the incidence of severe irAEs and in median PFS between AM patients treated by WAD or FD nivolumab. The median OS between patient groups did not reach statistical significance., (© 2024 The Author(s). Cancer published by Wiley Periodicals LLC on behalf of American Cancer Society.)