Sarcoidosis In Patients Treated With Vemurafenib For Metastatic Melanoma: A Paradoxical Autoimmune Activation
DERMATOLOGY(2015)
摘要
Background: Vemurafenib, a BRAF inhibitor, is a first-line treatment for inoperable melanoma. Sarcoidosis has never been reported in patients on vemurafenib. Objectives: We describe 5 cases of sarcoidosis in patients treated with vemurafenib. Methods: Seventy patients-receiving vemurafenib for a BRAF-mutated inoperable stage Ill or IV melanoma were treated in our centre. Results: Five patients (7.1%) developed sarcoidosis or a sarcoid-like reaction on vemurafenib; 4 patients had cutaneous signs and 3 had extracutaneous disorders (bilateral hilar lymph nodes, uveitis). Histological analysis of skin lesions revealed epithelioid granulomas without necrosis, consistent with sarcoidosis. Angiotensinconverting enzyme levels were high in 2 patients. Cutaneous and ophthalmological lesions rapidly disappeared on topical corticosteroid treatment without the cessation of vemurafenib treatment. Complete remission of melanoma was observed in 3 patients and partial remission was observed in another. Conclusion: BRAF inhibitors probably have immune system-enhancing effects and should therefore be recognized as potential inducers of sarcoidosis. (C) 2015 S. Karger AG, Basel
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关键词
Melanoma,Vernurafenib,BRAF inhibitors,Sarcoidosis
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