Publications by authors named "Tomonori Oura"

Article Synopsis
  • This analysis explored factors that predict achieving normoglycaemia (HbA1c <5.7%) in Japanese participants with type 2 diabetes undergoing tirzepatide treatment across two studies (SURPASS J-mono and J-combo).
  • Out of 912 participants, 60.6% reached normoglycaemia after one year, with lower baseline HbA1c, shorter diabetes duration, and lower body mass index contributing positively to this outcome.
  • The study concluded that participants with a baseline HbA1c below 8% and significant weight reduction had the highest success rate in achieving normoglycaemia, with treatment doses of 10 or 15 mg of tirzep
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Introduction: The presence of metabolic abnormalities in patients with type 2 diabetes (T2D) increases the risk of cardiovascular disease and other comorbidities. This analysis compared the effects of tirzepatide (5, 10, and 15 mg) and dulaglutide 0.75 mg on the prevalence of metabolic abnormalities in Japanese patients with T2D.

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Introduction: Treatment satisfaction in diabetes management is vital to achieving long-term clinical outcomes. This analysis evaluated treatment satisfaction among patients with type 2 diabetes (T2D) after 52 weeks of treatment with once-weekly tirzepatide (5, 10, and 15 mg) compared with dulaglutide 0.75 mg.

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Article Synopsis
  • The study aimed to assess the effects of tirzepatide and dulaglutide on glycaemic control, body weight, and safety in type 2 diabetes patients based on their baseline HbA1c levels.
  • In a 52-week clinical trial involving 636 participants, both groups showed significant reductions in HbA1c and body weight with tirzepatide compared to dulaglutide, particularly in patients with higher baseline HbA1c levels.
  • The results indicated that tirzepatide effectively improves diabetes management across different baseline HbA1c levels, with a low occurrence of hypoglycaemia and no significant treatment-related adverse events.
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Aim: To evaluate the pharmacodynamic effects of tirzepatide, a novel dual glucagon-like peptide-1 receptor and glucose-dependent insulinotropic polypeptide receptor agonist, compared with dulaglutide in patients with type 2 diabetes.

Materials And Methods: SURPASS J-mono was a 52-week, multicentre, randomized, double-blind, parallel, active-controlled, Phase 3 study, conducted in Japan. This substudy of SURPASS J-mono evaluated postprandial metabolic variables and appetite after a meal tolerance test, and body composition measured by bioelectrical impedance analysis.

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Article Synopsis
  • A phase 3 trial in Japan evaluated the effectiveness and safety of tirzepatide, a new diabetes medication, against dulaglutide in patients with type 2 diabetes who struggled to meet treatment goals.
  • Conducted across 46 medical centers, the study involved random assignment of 636 adult participants to receive either tirzepatide at varying doses or dulaglutide, with a primary focus on changes in HbA levels after 52 weeks.
  • Results showed that after one year, a significant reduction in HbA levels was observed in the participants, with most completing the study successfully.
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  • - The study aimed to assess the safety, tolerability, pharmacokinetics, and pharmacodynamics of tirzepatide in Japanese participants with type 2 diabetes using a phase 1, double-blind, placebo-controlled design.
  • - Forty-eight participants received either tirzepatide or a placebo, with common mild side effects like decreased appetite and gastrointestinal issues; the drug's plasma concentration half-life was around 5 days.
  • - After 8 weeks, tirzepatide significantly lowered fasting plasma glucose, HbA1c levels, and body weight across all dose groups compared to placebo, indicating its potential for further research in treating type 2 diabetes.
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Purpose: In East Asian patients, type 2 diabetes mellitus (T2DM) is characterized primarily by β-cell dysfunction, with lower insulin secretion than in Caucasian individuals. Therefore, bolus insulin and premixed insulin containing a bolus insulin component are important therapeutic tools in Japan, in addition to basal insulin. This subgroup analysis is stratified by insulin regimen and uses data from a phase 4, randomized, placebo-controlled, double-blind and subsequent open-label study in Japan to assess the efficacy and safety of once-weekly dulaglutide combined with various insulin therapies.

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Aims/introduction: Ultra-rapid lispro (URLi) is a novel ultra-rapid mealtime insulin. This study compared the pharmacokinetic and glucodynamic profiles, safety, and tolerability of URLi and lispro (Humalog ) in Japanese patients with type 1 diabetes mellitus.

Materials And Methods: This was a phase I, single center, randomized, patient- and investigator-blind, two-period, cross-over study.

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Introduction: Although global studies have investigated the combination of dulaglutide with insulin in patients with type 2 diabetes mellitus (T2DM), differences in lean body mass and dulaglutide dosing can complicate the extrapolation of global study results to Japanese patients. This phase 4, randomized, placebo-controlled, double-blind, and subsequent open-label study aimed to assess the efficacy and safety of once-weekly dulaglutide 0.75 mg in combination with insulin therapy in patients with T2DM.

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Introduction: Dulaglutide is a recombinant glucagon-like peptide-1 immunoglobulin G4 Fc fusion protein approved for treating patients with type 2 diabetes (T2D). The aim of this study was to assess postprandial data over 4 weeks for dulaglutide (0.75 mg) versus placebo after a standardized test meal in Japanese patients with T2D.

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Introduction: This analysis investigated the relationship between baseline fasting pancreatic β-cell function and efficacy in Japanese patients with type 2 diabetes (T2D) treated with once-weekly dulaglutide 0.75 mg (dulaglutide) or once-daily liraglutide 0.9 mg (liraglutide) for up to 52 weeks.

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  • A study compared the effects of once-weekly dulaglutide 0.75 mg and once-daily insulin glargine on Japanese patients with type 2 diabetes, focusing on their baseline glycated hemoglobin (HbA1c) levels.
  • Patients taking dulaglutide experienced a significantly greater reduction in HbA1c after 26 weeks compared to those on glargine, regardless of whether their initial HbA1c was ≤8.5% or >8.5%.
  • Although dulaglutide led to more gastrointestinal side effects, these were mostly mild, and it also had a lower incidence of hypoglycemia, while demonstrating weight loss benefits compared to weight gain with glargine.
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Background: Standardized patient-reported outcome (PRO) questionnaires can be utilized to evaluate treatment satisfaction (subjective evaluation of treatment) in patients with type 2 diabetes (T2D). These outcomes are important because they may affect patient adherence and overall study results.

Methods: PROs were evaluated in two randomized 26-week clinical trials in Japanese patients with T2D taking dulaglutide 0.

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We analyzed the efficacy and safety of once weekly dulaglutide 0.75 mg by sex in 2 randomized, controlled phase 3 studies in Japanese patients with type 2 diabetes (a 52-week monotherapy study [comparator liraglutide 0.9 mg] and a 26-week combination therapy study [comparator insulin glargine]).

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The effects of incretin therapies on pancreatic safety are currently being evaluated. In 3 phase 3 clinical studies of once weekly dulaglutide 0.75 mg (dulaglutide) in Japanese patients with type 2 diabetes (T2D), symptoms suggestive of acute pancreatitis as well as pancreatic enzymes were assessed and the risk of acute pancreatitis was evaluated.

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The efficacy and safety of once-weekly dulaglutide 0.75 mg (dulaglutide) in Japanese patients with type 2 diabetes (T2D) were evaluated according to subgroups defined by concomitant oral hypoglycaemic agents. This exploratory analysis included data from a randomized, open-label, phase III study that compared dulaglutide with insulin glargine (glargine) (n = 361).

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The efficacy and tolerability of once weekly dulaglutide 0.75 mg in Japanese patients with type 2 diabetes (T2D) were evaluated by subgroups defined by key demographic characteristics. This post hoc analysis included data from patients who received dulaglutide 0.

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The goal of this study was to assess the safety and efficacy of 0.75 mg of dulaglutide, a once weekly glucagon-like peptide-1 receptor agonist, in Japanese patients with type 2 diabetes (T2D) on a single oral hypoglycemic agent (OHA). In this phase 3, nonrandomized, open-label, parallel-group, 52-week study, safety and efficacy of once weekly dulaglutide 0.

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Molecular heterogeneity of cancer, partially caused by various chromosomal aberrations or gene mutations, can yield substantial heterogeneity in gene expression profile in cancer samples. To detect cancer-related genes which are active only in a subset of cancer samples or cancer outliers, several methods have been proposed in the context of multiple testing. Such cancer outlier analyses will generally suffer from a serious lack of power, compared with the standard multiple testing setting where common activation of genes across all cancer samples is supposed.

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Background: Exenatide once weekly (QW) is an extended-release formulation of exenatide, a glucagon-like peptide-1 receptor agonist that reportedly improves glycemic control in patients with type 2 diabetes.

Objective: The goal of this study was to test the hypothesis that exenatide QW is noninferior to insulin glargine, as measured by change in glycosylated hemoglobin (HbA(1c)) from baseline to end point (week 26 [primary end point]) in Japanese patients with type 2 diabetes who have inadequate glycemic control with oral antidiabetes drugs.

Methods: In this open-label, parallel-group, multicenter, noninferiority registration study, patients were randomized (1:1) to add exenatide QW (2 mg) or once-daily insulin glargine (starting dose, 4 U) to their current oral antidiabetes drug treatment.

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Article Synopsis
  • Nocturnal enuresis (bedwetting) in kids and nocturia (frequent urination at night) in older people happen when the kidneys make too much urine while sleeping.
  • Researchers found that a protein called connexin43 in the bladder helps control how much urine can be held and it changes throughout the day.
  • Mice with a working body clock showed regular changes in connexin43, but mice without a clock lost these patterns, suggesting that our body clocks help prevent nighttime bathroom trips that disturb sleep.
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Peritoneal dissemination including omental metastasis is the most frequent route of metastasis and an important prognostic factor in advanced ovarian cancer. We analyzed the publicly available microarray dataset (GSE2109) using binary regression and found that the transforming growth factor (TGF)-beta signaling pathway was activated in omental metastases as compared to primary sites of disease. Immunohistochemical analysis of TGF-beta receptor type 2 and phosphorylated SMAD2 indicated that both were upregulated in omental metastases as compared to primary disease sites.

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Distinguishing primary mucinous ovarian cancers from ovarian metastases of digestive organ cancers is often challenging. Dipeptidase 1 was selected as the candidate novel marker of colorectal cancer based on an analysis of a gene expression microarray. Immunohistochemical analysis indicated that 13/16 ovarian metastases of colorectal cancers, but only 1/58 primary mucinous ovarian cancers, were dipeptidase 1-positive (threshold; ≧25% expression, P<0.

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The purpose of this study was to investigate a new modality of therapy against ovarian clear cell carcinoma (OCCC), a chemoresistant subtype of ovarian cancer. Microarray datasets of ovarian cancer cell lines and cancer tissues were analyzed using bioinformatic tools. The gene expression profile of OCCC was similar to that of renal cell carcinoma (RCC).

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