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Decreased survival in patients treated by chemotherapy after targeted therapy compared to immunotherapy in metastatic melanoma
Author(s) -
Mangin MarieAlix,
Boespflug Amélie,
Maucort Boulch Delphine,
Vacheron CharlesHervé,
Carpentier Isabelle,
Thomas Luc,
Dalle Stéphane
Publication year - 2021
Publication title -
cancer medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.403
H-Index - 53
ISSN - 2045-7634
DOI - 10.1002/cam4.3760
Subject(s) - medicine , melanoma , chemotherapy , immunotherapy , gastroenterology , oncology , metastatic melanoma , surgery , cancer , cancer research
Background Cytotoxic chemotherapy (CC) is currently used in metastatic melanoma after patients have developed resistance to immune checkpoint inhibitors (ICI) and/or Mitogen‐Activated Protein Kinase inhibitors (MAPKi). We sought to evaluate if a previous treatment by ICI or MAPKi influences clinical outcomes in patients treated by CC in metastatic melanoma. Methods Eighty‐eight patients with a metastatic melanoma, treated by CC after a previous treatment by ICI or MAPKi between January 2009 and October 2019, were retrospectively analyzed. Progression‐Free‐Survival (PFS), Overall Survival (OS), Overall Response Rate (ORR), and Disease Control Rate (DCR) were evaluated in patients treated by CC according to their prior treatment by ICI or MAPKi. Results Patients treated by CC after ICI tended to have a better median PFS (2.81 months (2.39–5.30) versus 2.40 months (0.91–2.75), p  = 0.023), median OS (6.03 months (3.54–11.54) versus 4.44 months (1.54–8.59), p  = 0.27), DCR (26.0% vs. 10.5%, p  = 0.121) and ORR (22.0% vs. 7.9% p  = 0.134) than those previously treated by MAPKi. Conclusions A prior treatment by an MAPKi may be associated with a worse response to CC than ICI, and further investigations should be performed to confirm if there is a clinical benefit to propose CC in this setting.

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