Publications by authors named "Kamikozuru K"

Background And Aims: We evaluated the association between endoscopic outcomes following risankizumab induction and subsequent rates of hospitalization and surgery through 52 weeks of risankizumab (both doses) maintenance therapy in patients with Crohn's disease (CD).

Methods: Patients with moderately to severely active CD and clinical response to 12-week risankizumab induction were rerandomized to continued therapy or drug withdrawal in the phase 3 FORTIFY maintenance trial. Incidence rates (events/100 person-years) of CD-related hospitalization and surgery, and the composite of both, through 52 weeks of maintenance were compared between patients achieving vs not achieving predefined endoscopic outcomes following induction.

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Few studies have compared the efficacy and safety of Janus kinase (JAK) inhibitors in patients with ulcerative colitis (UC). We compared the real-world effectiveness and safety of tofacitinib (TOF) and filgotinib (FIL) as induction therapy for UC by propensity score-matching analysis. We enrolled 230 patients with active UC who received either TOF (n = 197) or FIL (n = 33) as induction therapy.

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Article Synopsis
  • Cronkhite-Canada syndrome (CCS) is a rare gastrointestinal disorder characterized by taste abnormalities, observed in over 80% of cases, along with various ectodermal issues like nail atrophy and hair loss.
  • Ten diagnosed patients underwent assessments for taste function and other symptoms before and after treatment, revealing significant improvements in taste, especially in the anterior tongue.
  • The study shows that taste function tests are effective in measuring treatment outcomes, as patients experienced both symptom relief and improved taste function within three months post-treatment.
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Background: Real-world data on tofacitinib (TOF) covering a period of more than 1 year for a sufficient number of Asian patients with ulcerative colitis (UC) are scarce.

Aim: To investigate the long-term efficacy and safety of TOF treatment for UC, including clinical issues.

Methods: We performed a retrospective single-center observational analysis of 111 UC patients administered TOF at Hyogo Medical University as a tertiary inflammatory bowel disease center.

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Background: Beyond systematic reviews and meta-analyses, there have been no direct studies of serological response to COVID-19 in patients with inflammatory bowel disease (IBD) across continents. In particular, there has been limited data from Asia, with no data reported from India. The ICARUS-IBD (International study of COVID-19 Antibody Response Under Sustained immunosuppression in IBD) consortium assessed serological response to SARS-CoV-2 in patients with IBD in North America, Europe, and Asia.

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Article Synopsis
  • * Researchers reviewed medical records of patients who began TED treatment between 2020 and 2021, noting significant reductions in PS volume and the percentage of patients who had a decrease of at least 20% from the start of treatment.
  • * Results showed a meaningful decrease in PS volume at 8 weeks, with a median drop from about 15,825 mL to 10,700 mL per week, and no serious adverse effects were reported during the study period.
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Introduction: Ustekinumab (UST) is an antibody to the p40 subunit of interleukins 12 and 23 in Crohn's disease (CD) patients. Few reports are available on CD in the Asian scenario.

Objective: We evaluated UST's efficacy in inducing remission and its maintenance in Japanese CD patients.

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Up to 50% of patients with ulcerative colitis (UC) or Crohn's disease (CD) experience a loss of response (LOR) to infliximab after an initial response to the drug. Granulocyte/monocyte apheresis (GMA) with the Adacolumn depletes the activated myeloid leukocytes that are known to exacerbate and perpetuate inflammatory bowel diseases, but GMA has hitherto not been applied to patients with LOR to infliximab. We report three cases (2 UC and 1CD) with LOR to maintenance infliximab therapy that received one GMA session/week for 3 consecutive weeks or more.

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Background/aims: Recent genome-wide analyses have provided strong evidence concerning adverse events caused by thiopurine drugs such as azathioprine (AZA) and 6-mercaptopurine. The strong associations identified between p.Arg139Cys and thiopurine-induced leukopenia and severe hair loss have been studied and confirmed over the last 2 years.

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In the inflammatory bowel disease (IBD) therapeutic settings, leukocytapheresis (LCAP), and Adsorptive Granulocyte/Monocyte Apheresis (GMA) are currently the two major cytapheresis (CAP) strategies approved and are applied to treat patients with IBD, which has become refractory to conventional pharmacological intervention. Further, based on our recently concluded prospective multi-centre studies, we can now report on the therapeutic efficacy, safety and demographic factors, which identify ulcerative colitis (UC) patients as responders, or otherwise as non-responders to CAP. Further, in Crohn's disease (CD) patients, hitherto studies have not identified CAP-responder features.

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Background Aims: In patients with inflammatory bowel disease infected with hepatitis B virus (HBV), immunosuppressive therapy required to suppress active inflammatory bowel disease may promote HBV reactivation.

Methods: A 27-year-old corticosteroid-naive woman with Crohn's disease (CD) activity index of 249.8 complicated by HBV infection was offered Entecavir to control HBV reactivation during immunosuppressive therapy for CD.

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Aim: To clarify the usefulness of postsurgical capsule endoscopy (CE) in the diagnosis of recurrent small bowel lesions of Crohn's disease (CD).

Methods: This prospective study included 19 patients who underwent ileocolectomy or partial ileal resection for CD. CE was performed 2-3 wk after surgery to check for the presence/absence and severity of lesions remaining in the small bowel, and for any recurrence at the anastomosed area.

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Background & Aims: To improve the clinical course of ulcerative colitis (UC), more accurate serum diagnostic and assessment methods are required. We used serum metabolomics to develop diagnostic and assessment methods for UC.

Methods: Sera from UC patients, Crohn's disease (CD) patients, and healthy volunteers (HV) were collected at multiple institutions.

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The aim of the present study was to assess patients' acceptance of therapeutic leukocytapheresis known as cytapheresis (CAP) for the treatment of an active flare of inflammatory bowel disease (IBD). A questionnaire was sent to 155 IBD patients who had been treated with CAP for an active flare of IBD at the IBD center of Hyogo College of Medicine between January 2009 and July 2012. In the questionnaire, patients were asked to evaluate CAP including efficacy, safety, unfavorable features and their willingness to be retreated with CAP for a subsequent IBD flare-up.

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Background: Adsorptive granulocyte and monocyte apheresis (GMA) with an Adacolumn in patients with ulcerative colitis (UC) has been applied as a non-pharmacological treatment strategy, but the efficacy has been encouraging as well as discouraging, depending on patients' demography at entry. In this study, we looked for predictive factors for clinical response to GMA in patients with UC.

Methods: In a retrospective setting, 43 outpatients who had been treated with GMA for active UC were evaluated.

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Objective: This study aimed to assess the efficacy and tolerability of leukocytapheresis (LCAP) and to investigate predictive factors for mucosal healing and a sustained clinical response in steroid-free and steroid-refractory patients with ulcerative colitis (UC).

Material And Methods: Thirty-one steroid-free or steroid-refractory patients with active UC were enrolled. Five or ten consecutive sessions of LCAP were performed in each patient.

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Background And Aim: Topical mesalamine or corticosteroid has shown efficacy in patients with ulcerative proctitis, but patients often become refractory to these interventions. Xilei San is a herbal preparation with evidence of anti-inflammatory effects. We evaluated the efficacy of topical Xilei San in ulcerative proctitis patients.

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Background: Leukocytapheresis (LCAP) is used as an adjunct therapy for patients with active ulcerative colitis (UC). Although, LCAP is routinely performed at 3,000 mL per session, we were interested to see that if this can be replaced with bodyweight (BW) adjusted volume.

Methods: In an open label prospective trial, the clinical response to BW adjusted LCAP (BWA-LCAP) was evaluated in 14 patients with active UC.

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Background: Infliximab (IFX) is effective for remission induction and maintenance of Crohn's disease (CD). This trial assessed the efficacy of scheduled maintenance IFX monotherapy to prevent postoperative CD recurrence.

Methods: Thirty-one CD patients who had ileocolic resection within the past 4 weeks were randomly assigned to scheduled IFX at 5 mg/kg intravenously every 8 weeks for 36 months (n = 15) or without IFX (control, n = 16).

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In Japan, adsorptive granulocyte/monocyte apheresis (GMA) is an approved treatment option in patients with active Crohn's disease (CD). However, there is inadequate knowledge regarding the mechanism(s) of therapeutic effects of this non-pharmacologic treatment strategy. Further, recently we have been interested in the regulatory T-cell (Treg) profile which has an essential immunoregulatory function.

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Granulocyte/monocyte adsorption (GMA) has been introduced as an adjunct intervention for active ulcerative colitis (UC) patients. The processed blood volume (PV) per GMA session is an important factor for its efficacy because depletion of elevated/activated myeloid leukocytes is its main action. Hitherto, this aspect of GMA has been largely ignored.

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The CD4+CD25High T-cell phenotype has an essential immunoregulatory role, while the CD4+CD28null T-cell reflects immune pathology. We investigated the profiles of the CD4+CD25High and the CD4+CD28null T-cell phenotypes in patients with ulcerative colitis (UC) during active and quiescent phases as well as following colectomy. Fifty-nine UC patients, 34 active (UCa) and 25 quiescent (UCq) together with 19 healthy controls (HC) were included.

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Background/aims: Infliximab (IFX), an antibody to tumor necrosis factor, (TNF)-α has efficacy in treating Crohn's disease (CD). However, knowledge of the potential effects of IFX on patients' immune profiles is lacking. The purpose of this study was to reveal the immunological effects of IFX.

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