English version of Japanese Clinical Practice Guidelines 2022 for gastrointestinal stromal tumor (GIST) issued by the Japan Society of Clinical Oncology.

The Japan Society of Clinical Oncology Clinical Practice Guidelines 2022 for gastrointestinal stromal tumor (GIST) have been published in accordance with the Minds Manual for Guideline Development 2014 and 2017. A specialized team independent of the working group for the revision performed a systematic review. Since GIST is a rare type of tumor, clinical evidence is not sufficient to answer several clinical and background questions. Thus, in these guidelines, we considered that consensus among the experts who manage GIST, the balance between benefits and harms, patients' wishes, medical economic perspective, etc. are important considerations in addition to the evidence. Although guidelines for the treatment of GIST have also been published by the National Comprehensive Cancer Network (NCCN) and the European Society for Medical Oncology (ESMO), there are some differences between the treatments proposed in those guidelines and the treatments in the present guidelines because of the differences in health insurance systems among countries.

[Comparative evaluation of 2 antiemesis tools for the prevention of chemotherapy-induced nausea and vomiting].

Although recent advances in chemotherapy have led to improved quality of life(QOL)and prolonged survival in patients with advanced cancer, treatment is often discontinued because of adverse events associated with chemotherapy, regardless of its efficacy.Nevertheless, chemotherapy has been validated in the United States and United Kingdom and is used worldwide. In Japan, few reports have been published regarding the use of assessment tools including the Multinational Association of Supportive Care in Cancer(MASCC)Antiemesis Tool(MAT)for the evaluation of chemotherapy-induced nausea and vomiting(CINV).We prospectively investigated the utility of the MAT and digestive symptom diary(DSD).In total, 68 patients who underwent highly and moderately emetogenic chemotherapy were included in the efficacy analyses.The improvement in the control of CINV during the delayed phase was significantly different between the DSD and MAT groups(p= 0.0148).The results obtained using the MAT warrant further validation.Meanwhile, the DSD may be used as an information tool by medical staff and patients.