639 results match your criteria: "Hokkaido Cancer Center.[Affiliation]"

Brain metastases in Japanese NSCLC patients: prognostic assessment and the use of osimertinib and immune checkpoint inhibitors-retrospective study.

Radiat Oncol

February 2023

Department of Radiation Oncology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita 15-Jo Nishi 7-Chome, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.

Article Synopsis
  • The study aimed to validate the Graded Prognostic Assessment for lung cancer (Lung-molGPA) in Japanese non-small cell lung cancer (NSCLC) patients with brain metastasis (BM) by analyzing factors affecting survival.
  • A retrospective analysis of 294 NSCLC patients treated with radiotherapy revealed median overall survival (OS) times significantly varied based on GPA scores and treatment history, particularly noting the benefits of osimertinib in adenocarcinoma patients with gene mutations.
  • Although survival varied across PD-L1 expression levels, the differences were not statistically significant, indicating that other factors might play a more critical role in survival outcomes for patients with BM.
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Objective: This multicenter study aimed to evaluate the accuracy of the one-step nucleic acid amplification (OSNA) assay in diagnosing lymph node metastasis (LNM) in patients with cervical and endometrial cancers.

Methods: Surgically removed LNs from patients with cervical and endometrial cancer were sectioned at 2-mm intervals along the short axis direction and alternately examined using the OSNA assay and conventional histopathological examination. Ultrastaging (200-μm LN sections) was performed for metastatic LNs using hematoxylin and eosin staining and immunostaining with an anti-CK19 antibody in cases where the OSNA assay and histopathological examination (performed using 2-mm LN sections) results showed discordance.

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Clinical features of complex karyotype in newly diagnosed acute myeloid leukemia.

Int J Hematol

April 2023

Department of Hematology, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-Ku, Sapporo, 0608638, Japan.

Article Synopsis
  • Complex karyotype acute myeloid leukemia (CK-AML) is identified as a high-risk subtype, with two classifications: typical and atypical, but their clinical differences in Japanese patients are not well understood.
  • A study of 115 CK-AML patients shows that typical CK-AML has a significantly shorter median overall survival (143 days) compared to atypical CK-AML (369 days), particularly for those with specific chromosomal abnormalities.
  • TP53 mutations are more common in typical CK-AML, and while they worsen prognosis for atypical CK-AML patients, typical CK-AML patients have poor outcomes regardless of TP53 mutation status.
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Chemotherapy-induced peripheral neuropathy (CIPN) is an important clinical challenge that threatens patients' quality of life. This sub-study of the ABROAD trial investigated the influence of single nucleotide polymorphisms (SNPs) on CIPN, using genotype data from a randomized study to determine the optimal dose of a 3-week-cycle regimen of nab-paclitaxel (q3w nab-PTX) in patients with metastatic breast cancer (MBC). Patients with HER2-negative MBC were randomly assigned to three doses of q3w nab-PTX (SD: 260 mg/m2 vs.

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  • The phase 3 VELIA trial tested the effectiveness of veliparib combined with carboplatin and paclitaxel as a treatment and maintenance option for patients with high-grade serous ovarian carcinoma.
  • In a subgroup analysis of 78 Japanese patients, those receiving vtreatment with veliparib showed a median progression-free survival of 27.4 months compared to 19.1 months for the control group, although the results were not statistically significant.
  • The study noted differences in the rates of severe side effects between Japanese and non-Japanese patients, suggesting the need for tailored management strategies during treatment.
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  • A study was conducted to evaluate the effectiveness and safety of nivolumab immunotherapy in patients with recurrent or metastatic oral squamous cell carcinoma.
  • The research involved 143 patients and found that nivolumab achieved a 27.3% overall response rate and a disease control rate of 46.2%.
  • Key factors influencing patient survival included performance status and the occurrence of immune-related side effects, with overall survival averaging about 11.2 months, indicating nivolumab is an effective and well-tolerated treatment option.
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  • The Body Image Scale (BIS) is a validated 10-item tool designed to assess the body image of bladder cancer patients, with a focus on a Japanese version for accuracy.
  • A study involving 397 Japanese bladder cancer patients showed strong internal consistency (Cronbach's α = 0.924) and confirmed the BIS's ability to differentiate between body image perceptions based on treatment type.
  • The BIS scores correlated with other health-related quality of life instruments (Bladder Cancer Index and SF-12), affirming its validity and reliability in capturing the body image experiences of bladder cancer patients.
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Background: The HORSE-BC study previously demonstrated that second-line endocrine therapy (ET) for patients with acquired endocrine-resistant metastatic breast cancer (MBC) still provided a clinically meaningful benefit. Herein, we investigated the health-related quality of life (HRQOL) in the HORSE-BC study.

Methods: Patients with acquired endocrine-resistant MBC who were scheduled for second-line ET were recruited.

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Background: The quality of transurethral resection of bladder tumor (TURBT) markedly varies among surgeons and may have a considerable impact on treatment outcomes. The importance of a surgical checklist for TURBT has been suggested in order to standardize the procedure and improve surgical and oncological outcomes. In the present study, we verified the usefulness of a checklist for managing patients with non-muscle-invasive bladder cancer (NMIBC).

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Tips for using forceps during uniportal video-assisted thoracoscopic surgery.

Multimed Man Cardiothorac Surg

October 2022

Department of Thoracic Surgery, National Hospital Organization, Hokkaido Cancer Center, Japan.

Uniportal video-assisted thoracoscopic surgery is usually performed using an ultrasonic coagulation cutting device in the dominant hand and a long suction device in the non-dominant hand. However, countertraction with forceps is often needed for dissection of a vessel sheath. Moreover, in uniportal video-assisted thoracoscopic surgery, which requires the simultaneous use of multiple instruments, the instruments tend to interfere with each other during the procedure because of the need to share a single incisional port.

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  • The study investigates the link between pretreatment BMI and outcomes in patients with oral squamous cell carcinoma, highlighting that underweight individuals have significantly higher cause-specific mortality.
  • The analysis involved 2,023 East Asian patients, revealing a 25.7% 5-year mortality rate for underweight patients compared to 12.7% for those with normal weight.
  • Underweight patients faced a 51% increased risk of mortality and a 55% higher risk of regional metastasis, emphasizing the importance of BMI as a risk factor in this cancer type.
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  • - Tucidinostat, an oral HDAC inhibitor, was tested in a phase IIb study for its effectiveness and safety in treating relapsed/refractory peripheral T-cell lymphoma, with 55 patients enrolled between March 2017 and March 2019.
  • - The study found an overall response rate of 46%, with significant responses in various PTCL subtypes, and a notable 88% response rate in angioimmunoblastic T-cell lymphoma.
  • - While some patients experienced adverse events like thrombocytopenia and neutropenia, most were manageable, suggesting tucidinostat could be a promising new option for treatment.
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Background And Purpose: To minimize cognitive decline without increasing brain tumor recurrence (BTR) by reduced-dose whole-brain radiotherapy (RD-WBRT) (25 Gy, 10 fractions) + stereotactic radiosurgery (SRS) in patients with ≤ 4 brain metastases.

Materials And Methods: Eligible patients with ≤ 4 brain metastases on contrast-enhanced MRI and Karnofsky Performance Status ≥ 70. The primary endpoint was the non-inferiority of BTR at distant sites in the brain (BTR-distant)-free survival at 6 months compared to that of the standard dose (SD)-WBRT (30 Gy, 10 fractions) + SRS arm in a randomized clinical trial (JROSG99-1) of SRS with/without SD-WBRT.

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Characterization of the genomic landscape of biliary tract cancer (BTC) may lead to applying genotype-matched therapy for patients with this disease. Evidence that comprehensive cancer genomic profiling (CGP) guides genotype-matched therapy to improve clinical outcomes is building. However, the significance of CGP in patients with BTC remains unclarified in clinical practice.

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The purpose was to explore potential biomarkers of the efficacy and toxicity of triple therapy of nivolumab, bevacizumab and paclitaxel in patients with HER2-negative metastatic breast cancer (MBC). Tumor tissues before treatment and blood samples at pretreatment, during and after treatment were collected. The serum samples were used to measure the concentrations of cytokines.

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Introduction: In early-stage oral tongue squamous cell carcinoma (OTSCC), elective neck dissection (END) is recommended when occult lymph node metastasis is suspected; however, there is no unanimous consensus on the risks and benefits of END in such cases. The management of clinically node-negative (cN0) OTSCC remains controversial. This study, therefore, aimed to evaluate the efficacy of END and its impact on the quality of life (QoL) of patients with cN0 OTSCC.

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Objective: To clarify the frequency of deficient mismatch repair (dMMR) in Japanese ovarian cancer patients, we examined microsatellite instability (MSI) status and immunohistochemistry (IHC) subtypes, including endometrioid carcinoma (EMC), clear cell carcinoma (CCC), or a mixture of both (Mix).

Methods: We registered 390 patients who were diagnosed with EMC/CCC/Mix between 2006 and 2015 and treated at seven participating facilities. For 339 patients confirmed eligible by the Central Pathological Review Board, MSI, IHC, and MutL homolog 1 methylation analyses were conducted.

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To investigate the association between the onset, severity, and type of immune-related adverse events (irAEs) and the efficacy of pembrolizumab in patients with platinum-pretreated advanced urothelial carcinoma (UC), we retrospectively collected clinical datasets of 755 patients and conducted landmark analysis. Patients who survived for fewer than 3 months were excluded from the evaluation to reduce the immortal time bias. In total, 620 patients were evaluated, of whom 220 patients (35.

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We conducted a multicenter phase II trial to evaluate the efficacy and safety of S-1 and irinotecan combination therapy in patients with epidermal growth factor receptor-mutated non-small-cell lung cancer treated with epidermal growth factor receptor tyrosine kinase inhibitors. Epidermal growth factor receptor-mutated non-small-cell lung cancer patients treated with epidermal growth factor receptor tyrosine kinase inhibitors and platinum-based chemotherapy received 80 mg/m S-1 on days 1-14 and 70 mg/m irinotecan on days 1 and 8 of a 21-day cycle. The primary endpoint was disease control rate 8 weeks after enrollment.

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Article Synopsis
  • Lower third molar extraction is a common dental surgery, and while the procedures are routine, their difficulty and associated complications can vary based on individual patient factors.
  • A study involving 1,826 extractions in Japan found that the overall prevalence of postoperative complications was 10.0%.
  • Key risk factors for complications included older age (over 32 years), radiographic relationships of tooth roots with the mandibular canal, and the depth of tooth impaction, indicating that older patients with deeply impacted teeth may face higher risks after surgery.
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This study aimed to investigate whether renin-angiotensin system inhibitors (RAS-I) have an advantage over calcium channel blockers (CCB) for suppression of proteinuria in hypertensive patients with gastric cancer receiving ramucirumab (RAM) treatment. Adult Japanese patients with gastric cancer who were outpatients at Asahikawa Medical University Hospital, National Hospital Organization Hokkaido Cancer Center, and Iwate Medical University Hospital between July 1, 2015, and March 31, 2021, were included in this study. Of these patients, those who had received first-time RAM treatment, and those treated with antihypertensive agents including RAS-I or a CCB at initial RAM administration were included.

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  • A multicenter retrospective study examined 69 patients with mucosal malignant melanoma (MM) of the oral cavity in Japan to analyze demographics and treatment outcomes from 2000 to 2020.
  • The study found that most patients were older men, with a mean age of about 70, and many had advanced disease stages, with 79.7% undergoing radical therapy.
  • Results indicated that early detection and radical treatment significantly improved survival rates, highlighting advanced T classification as a key prognostic factor for overall survival.
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