Osimertinib-Induced Cutaneous Vasculitis Responsive to Low-Dose Dapsone Without Interruption of Anticancer Therapy: A Case Report and Review of the Literature

A 45-year-old woman with a history of lung adenocarcinoma treated with osimertinib developed purpuric plaques and vesicles on the lower extremities after 5 months of therapy. Skin biopsy revealed leukocytoclastic vasculitis (LCV). A workup for systemic involvement was unremarkable. The patient was t...

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Main Authors: Christopher Iriarte, MD, Jonathan H. Young, MD, PhD, Michael S. Rabin, MD, Nicole R. LeBoeuf, MD, MPH
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:JTO Clinical and Research Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666364322001394
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author Christopher Iriarte, MD
Jonathan H. Young, MD, PhD
Michael S. Rabin, MD
Nicole R. LeBoeuf, MD, MPH
author_facet Christopher Iriarte, MD
Jonathan H. Young, MD, PhD
Michael S. Rabin, MD
Nicole R. LeBoeuf, MD, MPH
author_sort Christopher Iriarte, MD
collection DOAJ
description A 45-year-old woman with a history of lung adenocarcinoma treated with osimertinib developed purpuric plaques and vesicles on the lower extremities after 5 months of therapy. Skin biopsy revealed leukocytoclastic vasculitis (LCV). A workup for systemic involvement was unremarkable. The patient was treated with oral dapsone while continuing osimertinib without interruption. Skin lesions cleared within 2 weeks of therapy with no recurrence after titrating off dapsone. To the best of our knowledge, this is the first reported case of LCV induced by a small-molecule EGFR inhibitor in which therapy was not interrupted. This is also the first reported case treated with dapsone rather than systemic corticosteroids. We suggest consideration of dapsone to treat skin-limited LCV induced by EGFR inhibitors in patients with lung cancer without features of systemic vasculitis. In addition, this case highlights that it may not be necessary to stop EGFR inhibitor therapy in the absence of severe features such as ulceration, bullae, necrosis, or severe pain. Dapsone is an effective targeted therapy for cutaneous LCV that does not globally impair the immune system and may allow for uninterrupted treatment of the underlying malignancy.
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spelling doaj.art-32d523b9ad9f451da4e1b1353f6e67232022-12-22T04:15:31ZengElsevierJTO Clinical and Research Reports2666-36432022-11-01311100415Osimertinib-Induced Cutaneous Vasculitis Responsive to Low-Dose Dapsone Without Interruption of Anticancer Therapy: A Case Report and Review of the LiteratureChristopher Iriarte, MD0Jonathan H. Young, MD, PhD1Michael S. Rabin, MD2Nicole R. LeBoeuf, MD, MPH3Department of Dermatology, Brigham and Women’s Hospital, Boston, Massachusetts; Center for Cutaneous Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Harvard Medical School, Boston, MassachusettsHarvard Medical School, Boston, Massachusetts; Department of Pathology, Brigham and Women’s Hospital, Boston, MassachusettsHarvard Medical School, Boston, Massachusetts; Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MassachusettsDepartment of Dermatology, Brigham and Women’s Hospital, Boston, Massachusetts; Center for Cutaneous Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Corresponding author. Address for correspondence: Nicole R. LeBoeuf, MD, MPH, Center for Cutaneous Oncology Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02115.A 45-year-old woman with a history of lung adenocarcinoma treated with osimertinib developed purpuric plaques and vesicles on the lower extremities after 5 months of therapy. Skin biopsy revealed leukocytoclastic vasculitis (LCV). A workup for systemic involvement was unremarkable. The patient was treated with oral dapsone while continuing osimertinib without interruption. Skin lesions cleared within 2 weeks of therapy with no recurrence after titrating off dapsone. To the best of our knowledge, this is the first reported case of LCV induced by a small-molecule EGFR inhibitor in which therapy was not interrupted. This is also the first reported case treated with dapsone rather than systemic corticosteroids. We suggest consideration of dapsone to treat skin-limited LCV induced by EGFR inhibitors in patients with lung cancer without features of systemic vasculitis. In addition, this case highlights that it may not be necessary to stop EGFR inhibitor therapy in the absence of severe features such as ulceration, bullae, necrosis, or severe pain. Dapsone is an effective targeted therapy for cutaneous LCV that does not globally impair the immune system and may allow for uninterrupted treatment of the underlying malignancy.http://www.sciencedirect.com/science/article/pii/S2666364322001394Cutaneous vasculitisOsimertinibEpidermal growth factor receptor inhibitorCase reportDapsone
spellingShingle Christopher Iriarte, MD
Jonathan H. Young, MD, PhD
Michael S. Rabin, MD
Nicole R. LeBoeuf, MD, MPH
Osimertinib-Induced Cutaneous Vasculitis Responsive to Low-Dose Dapsone Without Interruption of Anticancer Therapy: A Case Report and Review of the Literature
JTO Clinical and Research Reports
Cutaneous vasculitis
Osimertinib
Epidermal growth factor receptor inhibitor
Case report
Dapsone
title Osimertinib-Induced Cutaneous Vasculitis Responsive to Low-Dose Dapsone Without Interruption of Anticancer Therapy: A Case Report and Review of the Literature
title_full Osimertinib-Induced Cutaneous Vasculitis Responsive to Low-Dose Dapsone Without Interruption of Anticancer Therapy: A Case Report and Review of the Literature
title_fullStr Osimertinib-Induced Cutaneous Vasculitis Responsive to Low-Dose Dapsone Without Interruption of Anticancer Therapy: A Case Report and Review of the Literature
title_full_unstemmed Osimertinib-Induced Cutaneous Vasculitis Responsive to Low-Dose Dapsone Without Interruption of Anticancer Therapy: A Case Report and Review of the Literature
title_short Osimertinib-Induced Cutaneous Vasculitis Responsive to Low-Dose Dapsone Without Interruption of Anticancer Therapy: A Case Report and Review of the Literature
title_sort osimertinib induced cutaneous vasculitis responsive to low dose dapsone without interruption of anticancer therapy a case report and review of the literature
topic Cutaneous vasculitis
Osimertinib
Epidermal growth factor receptor inhibitor
Case report
Dapsone
url http://www.sciencedirect.com/science/article/pii/S2666364322001394
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