Erlotinib-induced Hepatotoxicity-Clinical Presentation and Successful Management: A Case Report

Journal of Clinical and Experimental Hepatology
Anil K Arora

Abstract

Drug-induced liver injury (DILI) is a common occurrence in clinical practice in the present era because of frequent use of drugs and increase in patients who have increased susceptibility to DILI (because of underlying non-alcoholic steatohepatitis [NASH], chronic hepatitis C, chronic hepatitis B and alcoholic liver disease). DILI is the most common reason for withdrawal of an approved drug from the market. The overall mortality rate among patients hospitalized for DILI is approximately 10%. Erlotinib, a tyrosine kinase inhibitor of epidermal growth factor receptor (EGFR) is indicated for treatment of patients with locally advanced or metastatic non-small cell lung cancer and pancreatic cancer. The most common adverse effects associated with erlotinib use are rash and diarrhea. Liver function test (LFT) abnormalities are commonly associated with erlotinib use. Grade 2 (ALT elevations > 2.5-5× upper limit of normal [ULN]) LFT abnormalities are observed in around 4% of patients while Grade 3 (ALT < 5-20× ULN) are not reported. We report a case of acute hepatitis due to administration of erlotinib in 81-year-old gentleman diagnosed as having non-small cell lung cancer with metastasis to mediastinal lymph nodes and started on erlot...Continue Reading

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