Publications by authors named "Sunami K"

DREAMM-11 (NCT03828292) was a Phase 1, open-label, dose-escalation study of belantamab mafodotin in Japanese patients with relapsed/refractory multiple myeloma (RRMM). In Part 1, belantamab mafodotin monotherapy (2.5 or 3.

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Background: The implementation of cancer precision medicine in Japan is deeply intertwined with insurance reimbursement policies and requires case-by-case reviews by Molecular Tumor Boards (MTBs), which impose considerable operational burdens on healthcare facilities. The extensive preparation and review times required by MTBs hinder their ability to efficiently assess comprehensive genomic profiling (CGP) test results. Despite attempts to optimize MTB operations, significant challenges remain.

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Background: Combination therapy with BRAF and MEK inhibitor holds promise for treating gliomas harboring the V600E mutation; however, the development of acquired resistance remains a challenge.

Case Description: We describe a case of repeated recurrent mutant pleomorphic xanthoastrocytoma (central nervous system World Health Organization grade 3) treated with combination therapy with BRAF and MEK inhibitor. The patient received dabrafenib (BRAF inhibitor) and trametinib (MEK inhibitor); however, she developed resistance to the combination therapy.

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We characterized the safety and efficacy of the bispecific antibody teclistamab in Japanese patients with relapsed/refractory multiple myeloma (RRMM). Patients were pretreated with a proteasome inhibitor (PI), immunomodulatory drug (IMiD), and anti-CD38 monoclonal antibody (mAb). The primary endpoint was frequency and type of treatment-emergent adverse events (TEAEs) in phase 1, and overall response rate (ORR; ≥ partial response [PR]) in phase 2.

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  • Accurate estimation of tumor mutational burden (TMB) can be improved by including non-coding regions in gene panel assays, which are often overlooked in current calculations that only consider coding regions.
  • This study tested the OncoGuide NCC Oncopanel System (NOP) and found that using both coding and non-coding regions (NOP-overall) significantly increased agreement with TMB status compared to using only coding regions (NOP-coding).
  • Results showed a higher overall percent agreement (OPA) and smaller mean difference in TMB values when including non-coding regions, underlining their importance for precise TMB estimates, especially in smaller panels.
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Background: Migraine and dizziness often coexist, with vestibular migraine (VM) presenting with vestibular symptoms and headaches. Calcitonin gene-related peptide (CGRP) may be involved in motion-induced symptoms; however, studies on the use of anti-CGRP monoclonal antibodies (mAbs) for the treatment of VM have yielded conflicting results. This study aimed to clarify the effectiveness of anti-CGRP mAbs in VM treatment.

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Background: Adult nephrotic syndrome is a well-known kidney disease that causes heavy proteinuria, hypoalbuminemia, hypercholesterolemia, edema, and hypertension. The treatment varies according to its underlying cause but often faces medication resistance or adverse drug effects.

Case Presentation: A Japanese woman in her 80s presented with nephrotic syndrome after a 3 year latent period of urinary protein and occult blood.

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Background: Comprehensive genome profiling (CGP) serves as a guide for suitable genomically matched therapies for patients with cancer. However, little is known about the impact of the timing and types of cancer on the therapeutic benefit of CGP.

Materials And Methods: A single hospital-based pan-cancer prospective study (TOP-GEAR; UMIN000011141) was conducted to examine the benefit of CGP with respect to the timing and types of cancer.

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The emergence of novel drugs has significantly improved outcomes of patients with plasma cell neoplasms (PCN). The Japanese Society of Hematology conducted a prospective observational study in newly diagnosed PCN patients between 2016 and 2021. The analysis focused on 1385 patients diagnosed with symptomatic PCN between 2016 and 2018.

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Established treatment options for rare cancers are limited by the small number of patients. The current comprehensive genomic profiling (CGP) testing might not fully exploit opportunities for precision oncology in patients with rare cancers. Therefore, we aimed to explore the factors associated with CGP testing utility in rare cancers and identify barriers to implementing precision oncology.

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  • * The results showed significant improvement in patient responses, with complete or better responses increasing from 19.9% after induction to 62.4% after maintenance, alongside a 3-year progression-free survival rate of 83.5% and overall survival rate of 92.5%.
  • * While the treatment was tolerable, around 30% of patients experienced severe side effects, and those with high-risk cytogenetics
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  • The study investigates how specific genetic mutations in circulating tumor DNA (ctDNA) impact the prognosis of patients with relapsed/refractory multiple myeloma (RRMM) undergoing treatment.
  • Researchers identified 24 mutations in bone marrow plasma cells (BMPC) and 47 in ctDNA from 261 RRMM cases, with certain mutations, especially in the TP53 gene, linked to worse progression-free survival (PFS).
  • A new prognostic index based on the number of ctDNA mutations, plasma DNA concentration, and clinical factors was developed, highlighting ctDNA's role as a superior predictor for patient outcomes compared to mutations found in BMPC.
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  • * A study of 126 Japanese patients using wKd therapy showed an overall response rate of 66.3% and a median progression-free survival of 9.5 months.
  • * The study also reported that treatment-emergent adverse events occurred in 45.8% of patients, with 20.8% experiencing severe (grade ≥3) events, but no new safety concerns were identified.
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Introduction: The International Agency for Research on Cancer has classified passive smoking (PS) or secondhand smoke exposure as a group 1 carcinogen linked to lung cancer. However, in contrast to active smoking, the mutagenic properties of PS remain unclear.

Methods: A consecutive cohort of 564 lung adenocarcinoma samples from female never-smokers, who provided detailed information about their exposure to PS during adolescence and in their thirties through a questionnaire, was prepared.

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Background: V600 mutations are common in melanoma, thyroid, and non-small-cell lung cancers. Despite dabrafenib and trametinib being standard treatments for certain cancers, their efficacy across various solid tumours remains unelucidated. The BELIEVE trial assessed the efficacy of dabrafenib and trametinib in solid tumours with V600E/R or non-V600 mutations.

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The incidence of oral cancer has recently been increasing worldwide, particularly among young individuals and women. The primary risk factors for head and neck cancers, including oral and pharyngeal cancers, are smoking, alcohol consumption, poor oral hygiene, and repeated exposure to mechanical stimuli. However, approximately one-third of the patients with oral and pharyngeal cancers are neither smokers nor drinkers, which points to the existence of other mechanisms.

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Background: Precision medicine has transformed cancer treatment by focusing on personalized approaches based on genomic abnormalities. However, comprehensive genomic profiling (CGP) and access to targeted therapies are limited in Japan. This study investigates the BELIEVE trial, which aims to improve drug accessibility for patients with actionable genetic abnormalities through off-label drug administration.

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Cancer genomic medicine using next-generation sequencers has been developing. However, the number of patients who could receive genomically matched therapy is limited because off-label use or patient-oriented compassionate use was not permitted under National Health Insurance in Japan. To improve patient drug accessibility, we initiated a biomarker-based basket-type clinical trial (NCCH1901) in October 2019 under patient-proposed healthcare services.

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Article Synopsis
  • * The objective was to assess if a learning program sharing treatment protocols for low-evidence biomarkers could align MTB recommendations and evaluate the effectiveness of an AI-based annotation system.
  • * The study involved 47 participants and 50 simulated cases, comparing treatment recommendation concordance before and after the learning program, with the aim to achieve high agreement levels post-learning.
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Background: Salivary gland carcinomas harboring anaplastic lymphoma kinase (ALK) rearrangements are rare. Here, we present the pathological characteristics, clinical course, and changes in the genetic status of a salivary gland carcinoma harboring a catenin alpha 1 (CTNNA1)::ALK rearrangement during treatment with an ALK tyrosine kinase inhibitor (TKI).

Methods: A 59-year-old man with a parotid tumor and cervical lymph node metastases underwent total parotidectomy and radical neck dissection.

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Background: Although vaccination is recommended for protection against invasive pneumococcal disease, the frequency of pneumococcal pneumonia is still high worldwide. In fact, no vaccines are effective for all pneumococcal serotypes. Fusion pneumococcal surface protein A (PspA) has been shown to induce a broad range of cross-reactivity with clinical isolates and afford cross-protection against pneumococcal challenge in mice.

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  • A nationwide study analyzed clinical characteristics of post-essential thrombocythemia myelofibrosis (PET-MF) and post-polycythemia vera myelofibrosis (PPV-MF) in 314 patients diagnosed from 2012 to 2021.
  • Both conditions had a median diagnosis age of 70 years, with similar timeframes from earlier conditions; however, PPV-MF patients presented higher hemoglobin and white blood cell counts while PET-MF patients had elevated platelet counts.
  • Ruxolitinib was the primary treatment for both groups, and their overall survival rates were comparable, with leukemic transformation identified as the leading cause of death.
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