24 results match your criteria: "Japan Depression Center[Affiliation]"

Background And Objective: Inadequate response to antidepressant monotherapy is common among patients with major depressive disorder (MDD). The efficacy and safety of adjunctive brexpiprazole 2 mg/day has recently been confirmed during the 6-week, randomized, placebo-controlled phase 2/3 (BLESS) study, which evaluated brexpiprazole at 1 mg/day and 2 mg/day versus placebo as adjunctive therapy to antidepressant therapies in 740 Japanese patients with MDD and an inadequate response to antidepressant monotherapy. This study evaluated the long-term safety and efficacy of adjunctive fixed-dose brexpiprazole 2 mg/day in Japanese patients with MDD.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates the link between rare copy number variations (CNVs) in synaptic genes and bipolar disorder (BD) in a Japanese population, using genome hybridization techniques on nearly 2,000 BD patients and 2,760 controls.
  • - Results indicate a strong association between the RNF216 gene and BD, with significant findings also related to postsynaptic membrane components, suggesting these genetic factors contribute to BD risk.
  • - The findings enhance understanding of BD's genetic underpinnings, highlighting the importance of CNVs in gene regions that may influence the disorder's development.
View Article and Find Full Text PDF

Aims: Inadequate antidepressant response interrupts effective treatment of major depressive disorder (MDD). The BLESS study evaluates the dosage, efficacy, and safety of brexpiprazole adjunctive therapy in Japanese patients with inadequate antidepressant therapy (ADT) response.

Methods: This placebo-controlled, randomized, multicenter, parallel-group phase 2/3 study randomized Japanese MDD patients (Hamilton Rating Scale for Depression 17-item total score ≥ 14; historical inadequate response to 1-3 ADTs) with inadequate response to 8-week single-blind, prospective SSRI/SNRI treatment to 6-week adjunctive treatment with brexpiprazole 1 mg, 2 mg, or placebo.

View Article and Find Full Text PDF

Background: Increased levels of occupational stress among health professionals during the COVID-19 pandemic have been documented. Few studies have examined the effects of the pandemic on mental health professionals despite the heightened demand for their services.

Method: A multilingual, longitudinal, global survey was conducted at 3 time points during the pandemic among members of the World Health Organization's Global Clinical Practice Network.

View Article and Find Full Text PDF

Cross-Disorder Analysis of Genic and Regulatory Copy Number Variations in Bipolar Disorder, Schizophrenia, and Autism Spectrum Disorder.

Biol Psychiatry

September 2022

Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Japan; Institute for Glyco-core Research, Nagoya University, Nagoya, Japan. Electronic address:

Article Synopsis
  • The study investigates the differences and similarities in copy number variations (CNVs) related to bipolar disorder (BD), schizophrenia (SCZ), and autism spectrum disorder (ASD) using data from 8708 Japanese individuals.
  • It reveals that BD has a greater burden of smaller exonic deletions, while SCZ and ASD show a prevalence of larger exonic CNVs, with notable differences in the effect sizes and distributions of these CNVs across disorders.
  • Despite these differences, some shared molecular mechanisms, particularly in chromatin biology, were identified, and certain synaptic genes were linked to BD risk, suggesting potential pathways for further research into its causes.
View Article and Find Full Text PDF

Background: COVID-19 has profoundly affected the work of mental health professionals with many transitioning to telehealth to comply with public health measures. This large international study examined the impact of the pandemic on mental health clinicians' telehealth use.

Methods: This survey study was conducted with mental health professionals, primarily psychiatrists and psychologists, registered with WHO's Global Clinical Practice Network (GCPN).

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess the safety and effectiveness of lurasidone over a 12-week open-label extension for patients with schizophrenia, following a prior 6-week controlled trial.
  • Among 289 patients, adverse events were generally low, with akathisia being the most common, while vital signs and metabolic parameters showed minimal changes.
  • Results indicated continued improvement in schizophrenia symptoms, with significant gains on measures like PANSS and CGI-S scores, particularly in patients whose dosage was increased to 80 mg/day.
View Article and Find Full Text PDF

Aim: The aim of this study was to evaluate the efficacy of lurasidone in acute schizophrenia in Japan and other countries.

Methods: Subjects (aged 18-74 years) diagnosed with schizophrenia were randomized to lurasidone 40 mg/day or placebo. The primary efficacy endpoint was change from baseline on the Positive and Negative Syndrome Scale (PANSS) total score at Week 6.

View Article and Find Full Text PDF

Background: Lurasidone has demonstrated efficacy for short-term treatment of bipolar depression in a diverse ethnic population including Japanese. This study evaluated the long-term safety and effectiveness of open-label lurasidone treatment in these patients.

Methods: Patients for this 28-week extension study were recruited from those who completed a 6-week double-blind study of lurasidone, 20-60 mg/day, lurasidone 80-120 mg/day, and placebo.

View Article and Find Full Text PDF

Double-blind, placebo-controlled study of lurasidone monotherapy for the treatment of bipolar I depression.

Psychiatry Clin Neurosci

December 2020

Bipolar and Depressive Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Spain.

Aim: Previous studies conducted primarily in the USA and Europe have demonstrated the efficacy and safety of lurasidone 20-120 mg/day for the treatment of bipolar I depression. The aim of the current study was to evaluate the efficacy and safety of lurasidone monotherapy for the treatment of bipolar I depression among patients from diverse ethnic backgrounds, including those from Japan.

Methods: Patients were randomly assigned to double-blind treatment for 6 weeks with lurasidone, 20-60 mg/day (n = 184) or 80-120 mg/day (n = 169), or placebo (n = 172).

View Article and Find Full Text PDF

To evaluate the effects of L-carnitine on impaired brain function in patients with liver cirrhosis. We conducted a retrospective cohort study that included sequential 80 liver cirrhosis patients with impaired brain function evaluated using near-infrared spectroscopy (NIRS). Among them, L-carnitine was administered to 48 patients.

View Article and Find Full Text PDF

Longitudinal evaluation of visual P300 amplitude in clinical high-risk subjects: An event-related potential study.

Psychiatry Clin Neurosci

October 2020

Cognitive Neuroscience Laboratory, VA Boston Healthcare System, Department of Psychiatry, Harvard Medical School, Brockton, USA.

Aim: We previously reported abnormal P300 and N200 in a visual oddball task, and progressive P300 amplitude reduction at 1-year follow-up in patients with first-episode schizophrenia. P300 reduction as well as intact P1/N1 were also observed in clinical high-risk subjects (CHR), but whether or not these components change over time is unknown. This study evaluates, longitudinally, the visual P300, as well as P1, N1, and N200, in CHR.

View Article and Find Full Text PDF

Clinical Subtypes in Children with Attention-Deficit Hyperactivity Disorder According to Their Child Behavior Checklist Profile.

Child Psychiatry Hum Dev

December 2020

Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashiku, Fukuoka City, Fukuoka, 8128582, Japan.

Article Synopsis
  • The study examined 314 children (aged 4 to 15) with ADHD, using the Child Behavior Checklist to identify distinct symptom patterns.
  • Four subgroups were identified: "High internalizing/externalizing," "Inattention and internalizing," "Aggression and externalizing," and "Less psychopathology," each with different comorbid conditions.
  • The findings suggest that symptoms of ADHD often overlap with other psychiatric issues, potentially influenced by emotional dysregulation and neurobiological factors.
View Article and Find Full Text PDF

Background: Blonanserin transdermal patch therapy is now available in Japan for the treatment of schizophrenia and may provide several advantages over the tablet formulation.

Objective: The aim was to evaluate the long-term safety and efficacy of blonanserin transdermal patches in Japanese patients with schizophrenia.

Methods: An open-label study was conducted in adults with schizophrenia at 37 sites in Japan.

View Article and Find Full Text PDF

Introduction: This study was designed to evaluate the long-term safety and effectiveness of lurasidone in the treatment of schizophrenia among Asian patients.

Methods: Patients (N = 281) with schizophrenia who had completed a randomized, double-blind (DB), 6-week comparison of lurasidone (40 and 80 mg/day) and placebo were enrolled in a 26-week extension study in which all patients received open-label (OL), flexible doses of lurasidone (40 or 80 mg/day). Effectiveness was measured using the Positive and Negative Syndrome Scale (PANSS) scale.

View Article and Find Full Text PDF

Efficacy and safety of blonanserin transdermal patch in patients with schizophrenia: A 6-week randomized, double-blind, placebo-controlled, multicenter study.

Schizophr Res

January 2020

Department of Psychiatry, The Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, 75-59 263rd Street Glen Oaks, New York 11004, USA; Center for Psychiatric Neuroscience, Feinstein Institute for Medical Research, Manhasset, NY, USA; Department of Psychiatry, Hofstra Northwell School of Medicine, Hempstead, NY, USA; Department of Psychiatry, The Zucker Hillside Hospital, 75-59 263rd Street Glen Oaks, New York 11004, USA.

Background: Blonanserin is a second-generation antipsychotic used for the treatment of schizophrenia. This study determined the efficacy, safety and pharmacokinetics of a blonanserin transdermal patch in patients with acutely exacerbated schizophrenia.

Methods: This double-blind, multicenter, phase 3 study consisted of a 1-week observation period during which patients were treated with two patches of placebo, followed by a 6-week double-blind period where patients were randomized (1:1:1) to receive once-daily blonanserin 40 mg, blonanserin 80 mg, or placebo patches.

View Article and Find Full Text PDF

Introduction: To evaluate efficacy and safety of lurasidone for the treatment of Asian patients with schizophrenia.

Methods: Patients with schizophrenia from Japan, South Korea, Malaysia, and Taiwan were randomly assigned to 6 weeks of double-blind treatment with 40 or 80 mg/d of lurasidone or placebo. The primary efficacy measure was change from baseline to week 6 on the Positive and Negative Syndrome Scale (PANSS) total score.

View Article and Find Full Text PDF

Objective: The efficacy and safety of lurasidone in schizophrenia has been demonstrated in multiple controlled trials, primarily in US and European populations. The aim of the current study was To evaluate lurasidone for the treatment of schizophrenia among patients in Japan, Korea, and Taiwan.

Methods: Hospitalized patients (N = 460) with schizophrenia were randomized to 6 weeks of fixed-dose lurasidone 40 mg/d, lurasidone 80 mg/d, risperidone 4 mg/d, or placebo.

View Article and Find Full Text PDF

Longitudinal Factors Associated With Increased Alcohol and Tobacco Use in Fukushima Nuclear Power Plant Workers 32 Months After the Nuclear Disaster: The Fukushima News Project Study.

J Occup Environ Med

January 2019

Department of Psychiatric Nursing, Division of Nursing, National Defense Medical College, Tokorozawa, Japan (Drs Komuro, Uchino, Satomi Takahashi); Department of Psychiatry, National Defense Medical College, Tokorozawa, Japan (Drs Shigemura, Tanichi, Saito, Toda, Kurosawa, Yoshino); Department of Disaster Psychiatry, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (Dr Sho Takahashi); Ibaraki Prefectural Medical Center of Psychiatry, Kasama, Japan (Dr Sho Takahashi); Division of Behavioral Science, National Defense Medical College Research Institute, National Defense Medical College, Tokorozawa, Japan (Drs Nagamine, Shimizu); Department of Biostatistics, Yokohama City University School of Medicine, Yokohama, Japan (Drs Kubota, Misumi); Rokubancho Mental Clinic, Japan Depression Center, Tokyo, Japan (Dr Nomura); and Department of Public Health, Graduate School Medicine, Juntendo University, Tokyo, Japan (Dr Tanigawa).

Objectives: The aim of this study was to predict increased alcohol and tobacco use in Fukushima nuclear power plant (NPP) workers 3 years after a nuclear disaster.

Methods: Surveys were conducted in two postdisaster waves (Wave 1: 2 to 3 months; Wave 2: 32 months). Adjusted risk ratio (aRR) was computed to assess the covariates of increased alcohol and tobacco use in Wave 2.

View Article and Find Full Text PDF

Plasma amino acid profile in major depressive disorder: Analyses in two independent case-control sample sets.

J Psychiatr Res

January 2018

Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan. Electronic address:

Some amino acids act as neurotransmitters themselves, or are precursors of neurotransmitters. Previous studies reported inconsistent results regarding their changes in blood in major depressive disorder (MDD), which prompted us to examine plasma levels of amino acids and related molecules in two independent case-control sample sets. In total, 511 subjects were recruited.

View Article and Find Full Text PDF