Publications by authors named "Tae Hatsuyama"

Background/aim: Recent lung cancer treatments include an immune checkpoint inhibitor (ICI) pembrolizumab, platinum-based agents, plus an additional cytotoxic anticancer agent. Nutritional indices, such as the geriatric nutritional risk index (GNRI) and the prognostic nutritional index (PNI), are known to correlate with the prognosis of cancer chemotherapy. Several previous studies have investigated the relationship between PNI and treatment response in non-small cell lung cancer patients, reporting significantly increased OS and PFS in the high PNI group before treatment.

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Article Synopsis
  • The study examined how the Geriatric Nutritional Risk Index (GNRI) affects the occurrence of immune-related adverse events (ir-AE) and treatment duration in lung cancer patients undergoing immune checkpoint inhibitor (ICI) therapy.
  • It involved 127 patients, divided into High-GNRI (≥92) and Low-GNRI (<92) groups, and found that the High-GNRI group had a longer time to treatment failure (median TTF of 5.1 months vs. 2.3 months).
  • Additionally, patients in the High-GNRI group experienced significantly more skin-related side effects, which may have influenced their overall treatment outcomes.
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  • The study aimed to understand how blood levels of Osimertinib affect treatment continuation in patients with EGFR mutation-positive lung cancer.
  • It analyzed data from 56 patients and found that higher drug levels correlate with improved progression-free survival (PFS) but did not significantly impact overall treatment efficacy.
  • The research concluded that lower serum albumin levels were linked to shorter PFS, potentially influenced by factors like inflammation and liver function in cancer patients.
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Background: Routine therapeutic drug monitoring is a promising approach for the rational use of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) and anaplastic lymphoma kinase (ALK) inhibitors. The purpose of this study was to develop and validate a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the simultaneous determination of 5 EGFR-TKIs (afatinib, dacomitinib, erlotinib, gefitinib, and osimertinib) and 3 ALK inhibitors (alectinib, ceritinib, and crizotinib).

Methods: A 100-mL aliquot of serum was diluted with 100 μL of 1% aqueous ammonia containing internal standards and then purified using the supported liquid extraction method.

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Introduction: Corticosteroids are used to treat immune-related adverse events (irAEs) associated with nivolumab. However, patients with non-small-cell lung cancer who are administered corticosteroids before the initiation of nivolumab treatment are commonly excluded from clinical trials. The appropriate timing for corticosteroid administration in relation to nivolumab treatment, effects of corticosteroids on the efficacy of nivolumab, and resulting adverse events are not clearly understood.

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Palonosetron(Palo)is a second-generation 5-hydroxytryptamine 3 receptor antagonist(5-HT3RA)effective in suppressing chemotherapy-induced nausea and vomiting in both acute and delayed phases.Most studies have reported Palo as an effective antiemetic for cisplatin(CDDP)chemotherapy(≥50mg/m2)administered on an intermittent basis.To assess the antiemetic efficacy of Palo, we performed a retrospective study in 16 patients with lung cancer who received Palo with split-dose CDDP, ifosfamide, and irinotecan(CPT-11)triple combination(CIC)therapy at Sapporo Minami-Sanjo Hospital between October 2010 and January 2012.

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Guidelines for antiemetic therapy, such as the American Society of Clinical Oncology (ASCO) guidelines, recommend that aprepitant, an NK1 receptor antagonist, should be used in addition to conventional antiemetic therapy for acute and delayed nausea/vomiting caused by highly emetogenic chemotherapy. However, only few studies have been conducted to evaluate the efficacy of aprepitant in patients receiving moderately emetogenic chemotherapy. Therefore, we examined the antiemetic effects of additional doses of aprepitant in the next course in patients with lung cancer who were undergoing chemotherapy with carboplatin and who developed chemotherapy-induced nausea and vomiting (CINV) despite the preventive administration of a 5-HT3 receptor antagonist and dexamethasone.

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Aprepitant is a NK1 receptor-antagonist with a novel mechanism of action for chemotherapy-induced nausea and vomiting (CINV), and is recommended as a prophylactic by many international and domestic guidelines. However, domestic clinical trials of aprepitant have only been conducted using a single dose in patients who were treated with cisplatin(CDDP), and there is no evidence to support administration of aprepitant in divided doses. We administered aprepitant in divided doses to patients who were also being treated with cisplatin, ifosfamide, and irinotecan(CIC), and had CINV due to prophylactic administration of a 5-HT3 receptor antagonist and dexamethasone.

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