Publications by authors named "Go Saito"

Background: The clinical impact of hypomagnesemia induced by necitumumab plus gemcitabine and cisplatin (GCN) as a second-line or later therapy is unclear.

Objective: We aimed to evaluate the clinical characteristics and survival impact of hypomagnesemia induced by this therapy.

Design: This was a sub-analysis of the retrospective multicenter NINJA study.

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  • This study explored the effectiveness and safety of combining chemoradiotherapy (CRT) with local consolidative therapy (LCT) for patients with Stage IV non-small cell lung cancer (NSCLC) and oligometastases.
  • During the Phase II trial involving 19 patients, the treatment resulted in a 58% response rate, median progression-free survival of 8.6 months, and a two-year survival rate of 68.4%.
  • The findings suggest that this aggressive treatment approach may prolong survival and improve local control without severe adverse events.
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  • The study investigates long-term outcomes of chemoimmunotherapy for extensive-stage small-cell lung cancer (ES-SCLC) using a large cohort of patients over a minimum follow-up period of 3 years.
  • Most participants were trial-eligible, with significantly better overall survival rates compared to those who were not, highlighting the impact of eligibility criteria on treatment effectiveness.
  • The results underscore the practical implications of long-term outcomes in real-world settings, aiding clinical decisions for managing ES-SCLC patients.
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Purpose: Rearranged during transfection (RET) aberrations represent a targetable oncogene in several tumor types, with RET inhibitors displaying marked efficacy. However, some patients with RET-aberrant cancer are insensitive to RET tyrosine kinase inhibitors (TKIs). Recently, drug-tolerant mechanisms have attracted attention as targets for initial therapies to overcome drug resistance.

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Background: The Alcohol Use Disorders Identification Test (AUDIT) is commonly used in clinical settings to assess the severity of alcohol-related problems, with the effectiveness of alcohol reduction interventions varying across this spectrum. In a recent study, we demonstrated that a 12-week intervention involving the provision of free non-alcoholic beverages reduced alcohol consumption among heavy drinkers for up to 8 weeks post-intervention. However, it remains unclear whether this effect was consistent across different AUDIT score ranges.

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  • The study aimed to assess the safety and efficacy of chemoimmunotherapy in patients with extensive-stage small-cell lung cancer (SCLC) who also had mild interstitial lung disease (ILD).
  • In a trial with 21 patients, a low incidence of pneumonitis was observed, with a severe pneumonitis-free rate of 95.2% and only two patients experiencing pneumonitis during treatment.
  • The findings suggest that chemoimmunotherapy could be a viable treatment option for these patients, with a median overall survival of 10.7 months.
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  • The study investigates the effectiveness of durvalumab combined with chemoradiotherapy (CRT) versus CRT alone in treating locoregional recurrence of non-small-cell lung cancer (NSCLC) after complete resection.
  • Using propensity score analysis to adjust for confounding variables, the research involved 119 patients in the CRT-D group and 111 in the CRT group, noting differences in gender distribution and adenocarcinoma rates.
  • Results indicated that the median progression-free survival was significantly longer in the CRT-D group (25.4 months) compared to the CRT group (11.5 months), suggesting that the combination treatment could be a beneficial strategy for these patients.
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Background: The optimal subsequent treatment strategy for locally advanced non-small cell lung cancer (LA-NSCLC) after chemoradiotherapy (CRT) and consolidative durvalumab therapy remains unknown. We aimed to determine the optimal subsequent treatment strategy for this clinical population.

Materials And Methods: We retrospectively enrolled 523 consecutive patients with LA-NSCLC treated with CRT and analyzed the treatment outcomes of subsequent therapy after progression following CRT and consolidative durvalumab therapy.

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In clinical clerkship (CC), medical students can practice evidence-based medicine (EBM) with their assigned patients. Although CC can be a valuable opportunity for EBM education, the impact of EBM training, including long-term behavioral changes, remains unclear. One hundred and nine fourth- and fifth-year medical students undergoing CC at a medical school in Japan attended a workplace-based learning program for EBM during CC (WB-EBM), which included the practice of the five steps of EBM.

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Background: It is unclear whether brief interventions using the combined classification of alcohol-metabolizing enzymes aldehyde dehydrogenase 2 (ALDH2) and alcohol dehydrogenase 1B (ADH1B) together with behavioral changes in alcohol use can reduce excessive alcohol consumption. This study aimed to examine the effects of a brief intervention based on the screening of ALDH2 and ADH1B gene polymorphisms on alcohol consumption in Japanese young adults.

Methods: In this open-label randomized controlled trial, we enrolled adults aged 20-30 years who had excessive drinking behavior (average amount of alcohol consumed: men, ≥  4 drinks/per day and women, ≥  2 drinks/per day; 1 drink = 10 g of pure alcohol equivalent).

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  • - Immune checkpoint inhibitors (ICIs) can cause immune-related adverse events (irAEs), including various forms of arthritis, which can be challenging to differentiate, particularly crystal-induced types like gout and calcium pyrophosphate (CPP) arthritis.
  • - A case study of a patient who developed CPP crystal arthritis twice after receiving pembrolizumab (an ICI) highlighted the effectiveness of intra-articular glucocorticoid injections for treatment.
  • - The use of musculoskeletal ultrasound is recommended to help distinguish between ICI-associated crystal arthritis and other types of arthritis, improving diagnosis and treatment options for affected patients.
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  • The study investigates the safety and effectiveness of combining immune checkpoint inhibitors (ICI) with chemotherapy as a first-line treatment for older adults (75+) with advanced non-small cell lung cancer (NSCLC).
  • Conducted across 58 centers in Japan, the research analyzed 1,245 patients, focusing on their overall survival (OS) and progression-free survival (PFS) based on different treatment approaches.
  • Findings revealed that the median OS for those treated with ICI-chemotherapy was around 20 months, similar to patients receiving ICI alone, suggesting no significant difference in outcomes among treatment types after adjusting for various factors.
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Background: We recently demonstrated that a 12-week intervention consisting of the provision of free non-alcoholic beverages reduced alcohol consumption in excessive drinkers for 8 weeks after the intervention. However, gender differences in this effect were not explored. Thus, this secondary analysis investigated gender differences in the influence of non-alcoholic beverage provision on alcohol consumption.

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  • Osimertinib is the main treatment for advanced lung cancer with EGFR mutations, but its effectiveness in patients over 75 years is not well-studied.
  • A study analyzed 538 patients, showing no significant difference in progression-free survival between elderly (median 16.9 months) and non-elderly (median 22.1 months) patients, though older patients had shorter treatment durations and higher discontinuation rates due to side effects.
  • Despite these challenges, elderly patients had a median overall survival of 30 months, while non-elderly patients' survival data was still ongoing.
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Background: The use of alcohol-flavored beverages not containing alcohol (hereinafter referred to as non-alcoholic beverages) is recommended to reduce alcohol consumption. However, it is unclear if this reduces excessive drinking.

Objective: To verify whether non-alcoholic beverages impact the alcohol consumption of excessive drinkers.

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Although intrathoracic extramedullary haematopoiesis (EMH) is rare, its nodular lesions should be differentiated from malignancy. In-bone marrow scintigraphy can be useful for the non-invasive diagnosis of intrathoracic EMH because extramedullary accumulation of In can be determined as EMH.

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We developed a self-expandable metallic stent (SEMS) with a distal tapered end to reproduce the physiological bile flow with a pressure gradient due to the difference in the diameter. We aimed to evaluate the safety and efficacy of the newly developed distal tapered covered metal stent (TMS) for distal malignant biliary obstruction (DMBO). This single-center, prospective, single-arm study was conducted in patients with DMBO.

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Importance: Chemoimmunotherapy is the standard first-line therapy for patients with extensive-stage small cell lung cancer (ES-SCLC). However, whether findings from pivotal trials can be extrapolated to the clinical practice setting remains unclear.

Objective: To compare treatment outcome gaps following first-line chemoimmunotherapy for patients with ES-SCLC between those who met and did not meet the eligibility criteria used in previous clinical trials.

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Background: Childhood cancer survivors (CCSs) have a lifelong increased risk of chronic health problems, most of which are associated with the curative therapies. Recent studies have suggested that prospective active screening using comprehensive assessments for CCSs is superior in identifying undiagnosed chronic health problems.

Methods: To assess the significance of active screening using comprehensive medical examinations for detecting chronic health problems in multiple organ systems in CCSs, we retrospectively compared the frequency and severity of health problems between two different cohorts of CCSs in a single institution: 110 CCSs who visited the outpatient clinic for regular follow-ups between December 2010 and December 2015 (regular follow-up group) vs.

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Histologic transformation (HT) is a major cause of drug resistance to therapy in patients with lung cancer. HTs to small-cell lung cancer (SCLC) have been reported frequently in patients with epidermal growth factor receptor ()-mutated lung cancer. Although HTs have an impact on the clinical outcomes in patients owing to a high refractoriness to treatments, there is limited data on the prevalence, causes, mechanisms, treatment efficacy, and future treatment strategies.

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  • * Participants, aged 20-30 and classified into intervention and control groups, completed questionnaires and recorded drinking habits; the intervention group underwent genetic testing and received tailored feedback.
  • * The effectiveness of the intervention is assessed through follow-up surveys and comparisons of drinking behavior over time, focusing on whether the genotype information influences alcohol consumption patterns.
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Introduction: Malignant pleural effusion (MPE) is associated with poor treatment outcome in patients with NSCLC receiving immune checkpoint inhibitors (ICIs). ICIs and chemotherapy (ICI/Chemo) combination therapy is currently the standard therapy for NSCLC, and some ICI/Chemo regimens for nonsquamous (non-Sq) NSCLC contain bevacizumab (BEV), which is effective for controlling MPE and may enhance immune response. This study aimed to determine the optimal first-line treatment for this clinical population.

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Background: Coronavirus disease (COVID-19) has induced an urgent need to train medical students not only in infection prevention control but also in the treatment of infectious diseases, including COVID-19. This study evaluates the impact of simulated clinical practice with peer role-plays and a lecture on clinical education for COVID-19.

Methods: The sample for the study included 82 fourth- and fifth-year medical students undergoing clinical clerkship in respiratory medicine.

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