A 64 -year-old woman was referred to our hospital with a diagnosis of advanced rectal cancer with metastases to the left supraclavicular lymph nodes and paraaortic lymph nodes. Alow anterior resection was performed because of the symptoms of ileus. Subsequently, chemotherapy consisting of XELOX with bevacizumab was initiated as the first-line regimen, over 6 courses. Asecond -line regimen of FOLFIRI with bevacizumab was selected due to multiple lung metastases and the progression to both left supraclavicular and paraaortic lymph nodes. During the first 3 courses, the patient had no harmful side effects. Although the patient received adequate prophylactic antiemetic therapy and supportive treatment, grade 4 delayed emesis induced by irinotecan (CPT-11) occurred at 7 days after the fourth course of FOLFIRI chemotherapy. The patient was given total parenteral nutrition, after which she recovered substantially from the emesis. Delayed emesis is occasionally seen with irinotecan therapy and can be efficiently managed with adequate prophylactic antiemetic therapy. However, delayed emesis occurring one week after administration is rarely observed. Delayed emesis and subsequent therapy affect the quality of life (QOL) of the patient and subsequent therapy therefore, adequate attention and prompt management are required for delayed emesis.

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