Abstract
Introduction
Brigatinib is a next-generation anaplastic lymphoma kinase (ALK) inhibitor that targets a wide variety of ALK mutations and ROS1 rearrangements. While pancreatic enzyme elevations due to brigatinib are well known, we wanted to present a case that caused liver toxicity.
Case report
ALK and ROS1 translocations were detected in a 58-year-old patient diagnosed with metastatic lung adenocarcinoma. In the patient who had a good response with brigatinib, more than 5-fold elevation was detected in liver enzymes at the fifth month of treatment.
Management & outcome
After excluding other hepatitis factors, the patient was thought to have autoimmune hepatitis, and methylprednisolone was started and liver enzymes were decreased.
Discussion
Increased creatine kinase and lipase levels are common side effects associated with brigatinib, while liver toxicity is rare. Autoimmune hepatitis due to brigatinib was considered because of hepatic toxicity that developed in the fifth month of treatment and responded well to steroids.
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