Osimertinib is the preferred treatment in patients with metastatic non-small cell lung cancer with epidermal growth factor receptor mutations. We report a case series of acute cardiomyopathy with heart failure exacerbation during osimertinib treatment. We suggest that cardiotoxicity from osimertinib is reversible and occurs at a dose of 80 mg/day. (Level of Difficulty: Intermediate.).
Keywords: CHF, congestive heart failure; EF, ejection fraction; EGFR, epidermal growth factor receptor; NSCLC, non–small cell lung cancer; TKI, tyrosine kinase inhibitor; cardio-oncology; cardiotoxicity; heart failure; osimertinib; reduced ejection fraction.
© 2020 The Authors.