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  • Title: Endocrine toxicity in cancer patients treated with nivolumab or pembrolizumab: results of a large multicentre study.
    Author: Presotto EM, Rastrelli G, Desideri I, Scotti V, Gunnella S, Pimpinelli N, Vaccher E, Bearz A, Di Costanzo F, Bruggia M, Mini E, Maggi M, Peri A.
    Journal: J Endocrinol Invest; 2020 Mar; 43(3):337-345. PubMed ID: 31542865.
    Abstract:
    INTRODUCTION: The immune checkpoint inhibitors (ICPIs) agents anti-T lymphocytes-associated antigen 4 (CTLA-4) and anti-programmed cell death protein-1 (PD-1) and its ligands (PD-L1/PD-L2) have opened a new scenario in the treatment of cancer. These agents can induce immuno-related adverse events (irAEs), which may affect the endocrine system. PURPOSE: The aim of this study was to analyze the occurrence and the course of endocrine irAEs in cancer patients treated with anti-PD-1 immunotherapy. METHODS: This was a retrospective, multicentre study, involving cancer patients treated with the PD-1 inhibitors nivolumab or pembrolizumab at reference Oncology Centres. One hundred and seventy-nine consecutive patients with different types of cancer (mostly non-small cell lung cancer, melanoma, kidney cancer) were included in the study. Patients had received nivolumab (70.9%) or pembrolizumab (29.1%) for 2-33 months. The study evaluated clinical data records until the established date of July 15, 2018. The primary end point was the assessment of endocrine toxicity and possible predictive factors. RESULTS: Endocrine toxicity occurred in 54 out of 179 patients (30.2%) and was related to thyroid dysfunction, with the exception of one case of diabetes mellitus. Thyroid toxicity occurred mostly within 2 months from the initiation of immunotherapy (83% of cases). A pre-existing thyroid dysfunction was a significant predictor of disease flare. CONCLUSIONS: Thyroid alterations are frequently associated with anti PD-1 treatment in cancer patients. Regular thyroid assessment should be performed, particularly in the first months of treatment and in patients with a pre-existing thyroid disease.
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