Publications by authors named "Kondoh Y"

Background: We sought consensus among practising respiratory physicians on the prediction, identification and monitoring of progression in patients with fibrosing interstitial lung disease (ILD) using a modified Delphi process.

Methods: Following a literature review, statements on the prediction, identification and monitoring of progression of ILD were developed by a panel of physicians with specialist expertise. Practising respiratory physicians were sent a survey asking them to indicate their level of agreement with these statements on a binary scale or 7-point Likert scale (- 3 to 3), or to select answers from a list.

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Introduction: Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, fibrotic interstitial pneumonia, which is characterised by progressive worsening of dyspnoea and lung function. Nintedanib treatment is recommended to slow IPF disease progression. The aim of this post-marketing surveillance (PMS) study was to evaluate the safety and effectiveness of nintedanib over 24 months in patients with IPF in a real-world setting in Japan.

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Rationale: Some patients with interstitial lung disease (ILD) have a high mortality rate or experience acute exacerbation of ILD (AE-ILD) that results in increased mortality. Early identification of these high-risk patients and accurate prediction of the onset of these important events is important to determine treatment strategies. Although various factors that affect disease behavior among patients with ILD hinder the accurate prediction of these events, the use of longitudinal information may enable better prediction.

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  • - The study explored the risk factors and consequences of acute exacerbations in patients with progressive fibrosing interstitial lung diseases (ILDs), using data from the INBUILD trial, which involved treatments with nintedanib versus placebo.
  • - Results showed that 8.7% of patients experienced acute exacerbations, with lower lung function and older age being significant risk factors, while nintedanib treatment seemed to reduce the risk of these events.
  • - The analysis indicated that acute exacerbations are linked to high mortality rates, with approximately 19% of patients at risk of death within 30 days following such events.
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Background: The latest guidelines on hypersensitivity pneumonitis (HP) categorise the disease as either fibrotic or non-fibrotic because of the greater clinical utility of this stratification. However, the prevalence and incidence of fibrotic and non-fibrotic HP are unknown. This study assessed the exact prevalence and incidence of fibrotic and non-fibrotic HP in Japan in 2021.

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Background: Multiple first-line treatment options have been developed for advanced non-small cell lung cancer (NSCLC) in each subgroup determined by predictive biomarkers, specifically driver oncogene and programmed cell death ligand-1 (PD-L1) status. However, the methodology for optimal treatment selection in individual patients is not established. This study aimed to develop artificial intelligence (AI)-based personalized survival prediction model according to treatment selection.

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Receptor kinase (RK) families process information from small molecules, short peptides, or glycan ligands to regulate core cellular pathways in plants. To date, whether individual plant RKs are capable of processing signals from distinct types of ligands remains largely unexplored. Addressing this requires the discovery of structurally unrelated ligands that engage the same receptor.

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Rationale: Accurate prognostic awareness (PA) and knowledge of the disease are critical for decision-making regarding treatment options, advance care planning, and end-of-life care. However, they have not been investigated in patients with interstitial lung disease (ILD).

Objectives: To determine the prevalence of patients with ILD who have accurate PA and/or knowledge of acute exacerbation.

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  • The study explores the effectiveness of multidisciplinary discussions (MDD) among medical professionals for diagnosing interstitial lung diseases (ILDs) and aims to improve diagnostic accuracy, especially for idiopathic pulmonary fibrosis (IPF).
  • It utilizes a nationwide ILD registry in Japan to facilitate rapid MDD diagnoses and develop a modified diagnostic ontology, addressing issues of unclassifiable ILDs and potential new disease entities.
  • The research focuses on providing accurate diagnoses and treatment recommendations, evaluating ILD prevalence, and clarifying reasons for diagnostic challenges through a central online platform for expert collaboration.
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  • The study focused on evaluating the COPD assessment test (CAT) for its effectiveness in measuring health status in patients with fibrotic interstitial lung disease (FILD), an area with limited existing data.
  • Researchers conducted a review of medical records from 358 patients over 6-12 months to assess the CAT's reliability, repeatability, and responsiveness, finding strong internal consistency and valid results.
  • The study estimated that the minimal clinically important difference (MCID) for the CAT is at least +5 points for deterioration and at least -3 points for improvement, confirming its usefulness in clinical assessments for FILD patients.
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  • The INCREASE trial demonstrated that inhaled treprostinil enhances exercise capacity in patients with pulmonary hypertension linked to interstitial lung disease (PH-ILD), but lacked specific hemodynamic and pharmacokinetic data.
  • A new trial in Japan evaluated the drug's effects on hemodynamics, exercise capacity, safety, and pharmacokinetics, administering inhaled treprostinil at escalating doses.
  • Results showed a significant reduction in pulmonary vascular resistance and an increase in walking distance over 16 weeks, along with manageable side effects like cough and low blood pressure, indicating the drug's efficacy and safety in this patient group.
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Background: The diagnosis of fibrotic hypersensitivity pneumonitis (fHP) from other interstitial lung diseases, particularly idiopathic pulmonary fibrosis (IPF), is often difficult. This study aimed to examine computed tomography (CT) findings that were useful for differentiating between fHP and IPF and to develop and validate a radiological diagnostic model.

Methods: In this study, 246 patients (fHP, n = 104; IPF, n = 142) from two institutions were included and randomly divided into the test (n = 164) and validation (n = 82) groups (at a 2:1 ratio).

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Background: Clinical guidance on the identification and management of connective tissue disease-associated interstitial lung disease (CTD-ILD) is needed for optimal clinical practice. We aimed to develop clinical algorithms for identifying and managing three common CTD-ILDs: those associated with systemic sclerosis (SSc-ILD), rheumatoid arthritis (RA-ILD), and polymyositis/dermatomyositis (PM/DM-ILD).

Research Design And Methods: Meetings were held October-November 2023 to create consensus-based algorithms for identifying and managing SSc-ILD, RA-ILD, and PM/DM-ILD in clinical practice, based on expert consensus statements for identification and management of CTD-ILD previously derived from a Delphi process.

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  • This study focuses on interstitial lung diseases (ILDs) in Japan, specifically looking at the incidence of progressive pulmonary fibrosis (PPF) in patients with fibrosing ILDs that aren't idiopathic pulmonary fibrosis.
  • Data from nearly 35,000 patients revealed that 41.7% progressed to PPF within 24 months, with rates being similar across different ILD subtypes, and the most common treatments included oral corticosteroids and tacrolimus.
  • The findings highlight a significant prevalence of PPF progression in chronic fibrosing ILDs, emphasizing the need for future research on how regular monitoring and early treatment could improve patient outcomes.
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  • Recent guidelines recommend against using PAH-targeted therapies in patients with pulmonary hypertension (PH) linked to respiratory diseases, highlighting the need for better assessment of treatment effectiveness.
  • The study analyzed 270 patients with precapillary PH, categorizing them into severe and mild cases to evaluate the impact of initial treatments on their prognosis.
  • Findings indicated that patients with severe PH and mild ventilatory impairment who received initial treatment showed a significantly better response and prognosis compared to those who did not, while such benefits were not seen in mild PH cases.
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Background: Extracellular mitochondrial DNA (mtDNA) is released from damaged cells and increases in the serum and bronchoalveolar lavage fluid (BALF) of idiopathic pulmonary fibrosis (IPF) patients. While increased levels of serum mtDNA have been reported to be linked to disease progression and the future development of acute exacerbation (AE) of IPF (AE-IPF), the clinical significance of mtDNA in BALF (BALF-mtDNA) remains unclear. We investigated the relationships between BALF-mtDNA levels and other clinical variables and prognosis in IPF.

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Background: Acute exacerbation (AE) is a potentially lethal event in patients with usual interstitial pneumonia/idiopathic pulmonary fibrosis (UIP/IPF). However, to date, no pathological predictors of AE have been identified. This retrospective study aimed to elucidate the pathological features that could predict AE in patients with UIP.

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Background: No comprehensive analysis of the pulmonary sequelae of coronavirus disease 2019 (COVID-19) in Japan based on respiratory function tests and chest computed tomography (CT) has been reported. We evaluated post-COVID-19 conditions, especially focusing on pulmonary sequelae assessed by pulmonary function tests and chest CT.

Methods: For this prospective cohort study, we enrolled 1069 patients who presented pneumonia at the time of admission in 55 hospitals from February 2020 to September 2021.

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Aims: Progressive pulmonary fibrosis (PPF) is a newly recognised clinical phenotype of interstitial lung diseases in the 2022 interstitial pulmonary fibrosis (IPF) guidelines. This category is based entirely on clinical and radiological factors, and the background histopathology is unknown. Our objective was to investigate the histopathological characteristics of PPF and to examine the correlation between usual interstitial pneumonia (UIP) and prognosis in this new disease type.

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Idiopathic pulmonary fibrosis (IPF) is an interstitial lung disease with a poor prognosis and an unknown cause that generally progresses to pulmonary fibrosis and leads to irreversible tissue alteration. The "Guidelines for the treatment of idiopathic pulmonary fibrosis 2017," specializing in the treatment of IPF for the first time in Japan and presenting evidence-based standard treatment methods suited to the state of affairs in Japan, was published in 2017, in line with the 2014 version of "Formulation procedure for Minds Clinical Practice Guidelines." Because new evidence had accumulated, we formulated the "Guidelines for the treatment of Idiopathic Pulmonary Fibrosis 2023 (revised 2nd edition).

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Background: Coagulopathy is a major cause of morbidity and mortality in COVID-19 patients. Hypercoagulability in COVID-19 results in deep vein thrombosis, thromboembolic complications, and diffuse intravascular coagulation. Microbiome dysbiosis influences the clinical course of COVID-19.

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Background: Pulmonary hypertension (PH) is defined by elevated mean pulmonary arterial pressure (MPAP), and elevated pulmonary vascular resistance (PVR) reflects pulmonary vascular abnormalities. The clinical significance of non-severe PH in patients with various interstitial lung diseases (ILDs) has not been fully elucidated. We aimed to investigate the clinical significance of MPAP and PVR for mortality in patients with newly diagnosed ILD.

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  • This study looked at a protein called periostin to see if it could help doctors predict how well patients with a lung disease called idiopathic pulmonary fibrosis (IPF) would do after treatment with a drug named nintedanib.
  • Researchers measured different levels of periostin in 87 patients and compared them to 43 other patients who hadn't been treated with antifibrotic drugs before.
  • They found that higher levels of periostin were linked to better chances of survival and more effectiveness of nintedanib in treating IPF, which might help doctors make better treatment plans in the future.
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  • Serum IFNλ3 levels were significantly higher in patients with polymyositis/dermatomyositis (PM/DM)-associated interstitial lung disease (ILD) compared to healthy controls, particularly in those with anti-MDA5 antibodies.
  • High serum IFNλ3 levels (>120 pg/mL) were linked to lower survival rates among anti-MDA5 antibody-positive DM-ILD patients, alongside factors like older age and low Pao.
  • This study suggests that serum IFNλ3 could serve as an important biomarker to identify high-risk patients with anti-MDA5 antibody-positive DM-ILD for poorer outcomes.
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