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Camrelizumab-induced anaphylactic shock in an esophageal squamous cell carcinoma patient: A case report and review of literature.
World Journal of Clinical Cases 2022 June 27
BACKGROUND: Camrelizumab (SHR-1210), an immune checkpoint inhibitor, is clinically used as a therapeutic option for various types of tumors. However, reports of adverse reactions associated with camrelizumab are gradually increasing. Anaphylactic shock due to camrelizumab has not been reported previously, until now. We report here, for the first time, a case of anaphylactic shock associated with camrelizumab in a patient with esophageal squamous cell carcinoma.
CASE SUMMARY: An 84-year-old male esophageal cancer patient received radiotherapy and chemotherapy 11 years ago. He was diagnosed with advanced esophageal squamous cell carcinoma with liver metastasis (TxN1M1) and received the first immunotherapy (camrelizumab 200 mg/each time, once every 3 wk) dose in December 2020, with no adverse reactions. Three weeks later, a generalized rash was noted on the chest and upper limbs; palpitations and breathing difficulties with a sense of dying occurred 10 min after the patient had been administered with the second camrelizumab therapy. Electrocardiograph monitoring revealed a 70 beats/min pulse rate, 69/24 mmHg (1 mmHg = 0.133 kPa) blood pressure, 28 breaths/min respiratory rate, and 86% pulse oximetry in room air. The patient was diagnosed with anaphylactic shock and was managed with intravenous fluid, adrenaline, dexamethasone sodium phosphate, calcium glucosate, and noradrenaline. Approximately 2 h after treatment, the patient's anaphylactic shock symptoms had been completely relieved.
CONCLUSION: Due to the widespread use of camrelizumab, attention should be paid to anti-programmed cell death 1 antibody therapy-associated hypersensitivity or anaphylactic shock.
CASE SUMMARY: An 84-year-old male esophageal cancer patient received radiotherapy and chemotherapy 11 years ago. He was diagnosed with advanced esophageal squamous cell carcinoma with liver metastasis (TxN1M1) and received the first immunotherapy (camrelizumab 200 mg/each time, once every 3 wk) dose in December 2020, with no adverse reactions. Three weeks later, a generalized rash was noted on the chest and upper limbs; palpitations and breathing difficulties with a sense of dying occurred 10 min after the patient had been administered with the second camrelizumab therapy. Electrocardiograph monitoring revealed a 70 beats/min pulse rate, 69/24 mmHg (1 mmHg = 0.133 kPa) blood pressure, 28 breaths/min respiratory rate, and 86% pulse oximetry in room air. The patient was diagnosed with anaphylactic shock and was managed with intravenous fluid, adrenaline, dexamethasone sodium phosphate, calcium glucosate, and noradrenaline. Approximately 2 h after treatment, the patient's anaphylactic shock symptoms had been completely relieved.
CONCLUSION: Due to the widespread use of camrelizumab, attention should be paid to anti-programmed cell death 1 antibody therapy-associated hypersensitivity or anaphylactic shock.
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