Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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! # Ola via Alexandros G.Sfakianakis on Inoreader

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Τρίτη 27 Δεκεμβρίου 2016

Thyroid Abnormalities following the use of CTLA-4 and PD-1 Inhibitors in the treatment of melanoma

Abstract

Context

Checkpoint inhibitors are emerging as important cancer therapies, but are associated with a high rate of immune side effects, including endocrinopathy.

Objective

To determine the burden of thyroid dysfunction in patients with melanoma treated with immune checkpoint inhibitors and describe the clinical course.

Design and Patients

Consecutive patients with melanoma treated with either Ipilimumab, Nivolumab, Pembrolizumab or the combination of Ipilimumab and Nivolumab were identified. Baseline thyroid function tests were used to exclude those with pre-existing thyroid abnormalities, and thyroid function tests during treatment used to identify those with thyroid dysfunction.

Results

Rates of overt thyroid dysfunction were in keeping with the published Phase 3 trials. Hypothyroidism occurred in 13.0% treated with a PD-1 inhibitor and 22.2% with a combination of PD-1 inhibitor and Ipilimumab. Transient subclinical hyperthyroidism was observed in 13.0% treated with a PD-1 inhibitor, 15.9% following a PD-1 inhibitor, and 22.2% following combination treatment with investigations suggesting a thyroiditic mechanism rather than Graves' disease, and a high frequency of subsequent hypothyroidism. Any thyroid abnormality occurred in 23.0% following Ipilimimab, 39.1% following a PD-1 inhibitor and 50% following combination treatment.Abnormal thyroid function was more common in female patients.

Conclusion

Thyroid dysfunction occurs commonly in patients with melanoma treated with immune checkpoint inhibitors, with rates, including sub-clinical dysfunction, occurring in up to 50%.

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