Lapatinib-induced hepatitis: a case report
Stavros Peroukides1, Thomas Makatsoris, Angelos Koutras
1Department of Medical Oncology, University Hospital of Patras, 26500 Rio, Patras, Greece. panio@upatras.gr
Abstract:
Lapatinib is an inhibitor of the tyrosine kinases of human epidermal growth factor receptor type 2 (HER2) and epidermal growth factor receptor type 1, with clinical activity in HER2-positive metastatic breast cancer. We present here a 60 year-old patient with metastatic breast cancer who presented with jaundice and increased serum aminotransferase levels and who had been treated with lapatinib for the previous 14 days. Laboratory tests excluded other causes of acute liver injury. Liver biopsy revealed lesions compatible with drug-induced hepatotoxicity. Bilirubin and liver enzymes returned to normal within three months of lapatinib discontinuation. Lapatinib should be included among the causes of drug-induced hepatitis.
Insights
Lapatinib, a HER2-positive metastatic breast cancer drug, can cause acute liver injury. Discontinuation of lapatinib led to recovery, indicating it should be recognized as a cause of drug-induced hepatitis.
Area of Science:
- Oncology
- Hepatology
- Pharmacology
Background:
- Lapatinib is a tyrosine kinase inhibitor targeting HER2 and EGFR1, used for HER2-positive metastatic breast cancer.
- Drug-induced liver injury (DILI) is a significant concern in cancer treatment.
Observation:
- A 60-year-old patient with metastatic breast cancer developed jaundice and elevated liver enzymes after 14 days of lapatinib treatment.
- Other causes of acute liver injury were ruled out through laboratory tests.
Findings:
- Liver biopsy confirmed drug-induced hepatotoxicity consistent with lapatinib use.
- Bilirubin and aminotransferase levels normalized within three months after discontinuing lapatinib.
Implications:
- Lapatinib should be considered a potential cause of drug-induced hepatitis.
- Clinicians should monitor liver function closely in patients receiving lapatinib.
- This case highlights the importance of recognizing lapatinib-associated hepatotoxicity in clinical practice.
Related Concept Videos
Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
Drug toxicity: Idiosyncratic Reactions
Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment
Effect of Hepatic Disease on Pharmacokinetics: Active Drug, Metabolite and Fraction of Metabolized Drug
Cirrhosis I: Introduction
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow


