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Published on: March 14, 2025
A case report of toxic epidermal necrolysis associated with AZD-9291
Jie Wang1, XianYe Cheng1, Yan Lu1
1Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, The People's Republic of China, bingrong.2002@163.com.
Abstract:
Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) are a strain of small molecule inhibitors mainly used to treat the metastatic non-small cell lung cancer. Their predominant adverse effect is skin toxicity, usually manifested as acneiform rash, skin fissure, xerosis, and paronychia. Severe epidermal necrosis and exfoliation rarely occur. As one of the new generation of epidermal growth factor receptor-tyrosine kinase inhibitors, AZD-9291 is claimed to have better efficacy and fewer side effects, particularly appropriate for patients with EGFR T790M mutation. Herein we report a 51-year-old man who developed a large area of skin necrosis and was diagnosed with toxic epidermal necrolysis after AZD-9291 ingestion.
Insights
Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) can cause skin toxicity. A rare case of toxic epidermal necrolysis occurred in a patient treated with the newer EGFR-TKI, AZD-9291.
Area of Science:
- Oncology
- Dermatology
- Pharmacology
Background:
- Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) are crucial in treating metastatic non-small cell lung cancer.
- Common side effects include acneiform rash, skin fissures, xerosis, and paronychia.
- Severe skin reactions like necrosis and exfoliation are rare.
Observation:
- AZD-9291 is a newer generation EGFR-TKI, noted for improved efficacy and tolerability, especially for EGFR T790M mutations.
- A 51-year-old male patient was treated with AZD-9291.
- The patient developed extensive skin necrosis.
Findings:
- The patient was diagnosed with toxic epidermal necrolysis.
- This severe adverse event occurred following AZD-9291 administration.
- This case highlights a rare but severe dermatological toxicity associated with AZD-9291.
Implications:
- Clinicians should be vigilant for severe skin reactions in patients receiving AZD-9291.
- Further investigation into the mechanisms of AZD-9291-induced toxic epidermal necrolysis is warranted.
- This case underscores the importance of monitoring for rare adverse events even with newer targeted therapies.
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