Esta página foi traduzida automaticamente e a precisão da tradução não é garantida. Por favor, consulte o versão em inglês para um texto fonte.

CSP #572 - Genetics of Functional Disability in Schizophrenia and Bipolar Illness

15 de abril de 2015 atualizado por: US Department of Veterans Affairs
The purpose of this study is to detect genetic associations for the development of schizophrenia (SZ) and bipolar illness (BP) by comparing Veterans with these diseases to "psychiatrically healthy" Veterans from Veterans Health Administration medical centers. In addition, the genetic basis for functional capacity and disability in Veterans affected with SZ and BP will be assessed, as will genetic predictors of suicidality and tardive dyskinesia. Finally, we will also establish a repository which allows for future genomic studies related to SZ, BP, and related disorders or sequelae.

Visão geral do estudo

Status

Concluído

Descrição detalhada

We propose to identify the genetic basis of Veterans developing either of two major psychiatric (or "mental health") diseases: schizophrenia and bipolar disorder. The study will also examine the genetic basis of disability in everyday functions (such as employment, independent living, and self care) among the same patients. By "genetic basis," we mean how a person's genes might be a risk for developing these illnesses or being affected by them. We will compare information gathered from Veterans with these illnesses to "psychiatrically healthy" Veterans. Participants will be recruited from multiple Veterans Health Administration medical centers; the analysis of blood samples will be done in designated and approved laboratories.

Both schizophrenia and bipolar disorder are chronic psychiatric diseases associated with considerable lifelong disability; in particular, these illnesses are common in Veterans served by the Veterans Health Administration. Both of these conditions are also known to be caused in part by genes or so-called heredity; studies of the entire set of human genes (referred to as the genome) can be a tool to identify specific reasons why certain people develop certain conditions. In addition, patients with schizophrenia or bipolar disorder often have difficulty functioning in the real-world-including problems in attention and memory, or the ability to perform tasks of everyday living or have normal emotional experiences-and these "functional impairments" may also be inherited genetically. The current study is designed to help identify who is at higher risk for these diseases and related problems, so that better methods to diagnose and treat the conditions can be developed in the future.

Among other aspects of schizophrenia and bipolar disorder, suicide stands out as a very important issue to Veterans, their families, and the Veterans Health Administration. Suicide attempts and completed suicides are more common in Veterans with schizophrenia and bipolar illness (compared to Veterans without these illnesses), and this tendency may be inherited as well. Part of this study will involve determining whether specific genes might be associated with suicidal behavior. Similarly, the study will look at the genetic basis of side effects related to taking medications for these diseases.

For this research, participants will be recruited from VA sites that have extensive experience in conducting projects involving psychiatric disorders. We will collect information about the genes of these Veterans from a blood sample, and we will ask questions about health and related factors. We will also establish a repository which allows for future genomic studies related to SZ, BP, and related disorders or sequelae. The total study duration is indefinite in the setting of creating a SZ and BP repository, although the required time period for addressing the primary aims is 3.5 years. Data for a comparison ("reference") group of Veterans with medical, but not psychiatric, illnesses, will be obtained from a research initiative entitled the "VA Million Veteran Program" (VA-MVP).

Ultimately, this study attempts to advance the state-of-the-art regarding our understanding and treatment for two common mental health disorders affecting Veterans and will also serve as part of a major initiative to support "personalized" healthcare. It represents a major effort to link specific genes to illnesses, and eventually to treatments intended to relieve suffering.

Tipo de estudo

Observacional

Inscrição (Real)

9356

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

    • Alabama
      • Birmingham, Alabama, Estados Unidos, 35233
        • VA Medical Center, Birmingham, AL
      • Tuscaloosa, Alabama, Estados Unidos, 35404
        • VA Medical Center, Tuscaloosa, AL
    • Arkansas
      • No. Little Rock, Arkansas, Estados Unidos, 72114-1706
        • Central Arkansas VHS Eugene J. Towbin Healthcare Center, Little Rock, AR
    • California
      • Long Beach, California, Estados Unidos, 90822
        • VA Long Beach Healthcare System, Long Beach, CA
      • Palo Alto, California, Estados Unidos, 94304-1290
        • VA Palo Alto Health Care System, Palo Alto, CA
      • San Diego, California, Estados Unidos, 92161
        • VA San Diego Healthcare System, San Diego, CA
    • Connecticut
      • West Haven, Connecticut, Estados Unidos, 06516
        • VA Connecticut Healthcare System West Haven Campus, West Haven, CT
    • District of Columbia
      • Washington, District of Columbia, Estados Unidos, 20422
        • Washington DC VA Medical Center, Washington, DC
    • Florida
      • Miami, Florida, Estados Unidos, 33125
        • Miami VA Healthcare System, Miami, FL
    • Georgia
      • Decatur, Georgia, Estados Unidos, 30033
        • Atlanta VA Medical and Rehab Center, Decatur, GA
    • Indiana
      • Indianapolis, Indiana, Estados Unidos, 46202-2884
        • Richard L. Roudebush VA Medical Center, Indianapolis, IN
    • Maryland
      • Baltimore, Maryland, Estados Unidos, 21201
        • Baltimore VA Medical Center VA Maryland Health Care System, Baltimore, MD
    • Massachusetts
      • Brockton, Massachusetts, Estados Unidos, 02301
        • VA Boston Healthcare System Brockton Campus, Brockton, MA
      • Leeds, Massachusetts, Estados Unidos, 01053-9764
        • VA Central Western Massachusetts Healthcare System, Leeds, MA
    • Minnesota
      • Minneapolis, Minnesota, Estados Unidos, 55417
        • Minneapolis VA Health Care System, Minneapolis, MN
    • New Mexico
      • Albuquerque, New Mexico, Estados Unidos, 87108-5153
        • New Mexico VA Health Care System, Albuquerque, NM
    • New York
      • New York, New York, Estados Unidos, 10010
        • Manhattan Campus of the VA NY Harbor Healthcare System, New York, NY
    • North Carolina
      • Salisbury, North Carolina, Estados Unidos, 28144
        • Salisbury W.G. (Bill) Hefner VA Medical Center, Salisbury, NC
    • Ohio
      • Cincinnati, Ohio, Estados Unidos, 45220
        • Cincinnati VA Medical Center, Cincinnati, OH
    • Pennsylvania
      • Philadelphia, Pennsylvania, Estados Unidos, 19104
        • Philadelphia VA Medical Center, Philadelphia, PA
      • Pittsburgh, Pennsylvania, Estados Unidos, 15240
        • VA Pittsburgh Healthcare System University Drive Division, Pittsburgh, PA
    • South Carolina
      • Charleston, South Carolina, Estados Unidos, 29401-5799
        • Ralph H. Johnson VA Medical Center, Charleston, SC
    • Texas
      • Houston, Texas, Estados Unidos, 77030
        • Michael E. DeBakey VA Medical Center, Houston, TX
      • Waco, Texas, Estados Unidos, 76711
        • Central Texas Veterans Health Care System Waco VA Medical Center, Waco, TX
    • Washington
      • Tacoma, Washington, Estados Unidos, 98493
        • VA Puget Sound Health Care System American Lake Division, Tacoma, WA

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Sim

Gêneros Elegíveis para o Estudo

Tudo

Método de amostragem

Amostra Não Probabilística

População do estudo

Case participants: Enrolled Veterans with a confirmed diagnosis of SZ and BP.

Control participants: Psychiatrically healthy Veterans enrolled in VA Million Veteran Program.

Descrição

Inclusion Criteria:

Case participants:

  • All participants must be 18 years of age or older
  • SZ patients must meet lifetime (DSM-IV) criteria for schizophrenia, any subtype
  • BP patients must have a confirmed bipolar type I diagnosis, which requires a history of a mixed or manic episode at some prior point, regardless of subsequent affective episodes
  • all patients must have medical records available in the VA CPRS
  • all patients must be competent to provide informed consent for the research

Control participants:

  • Enrollment in the VA Million Veteran Program

Exclusion Criteria:

Case participants:

  • SZ and BP patients that have participated in a previous GWAS study or are currently participating in a clinical treatment study
  • patients with physical, sensory, or intellectual limitations that preclude their assessment with performance-based measures
  • patients with active illicit drug use that might hamper assessments. Potential participants who present under the apparent influence of alcohol or drugs will be rescheduled once and excluded if they are intoxicated at their next appointment; patients identified via electronic medical record review will be screened for evidence of active drug abuse and excluded

Control participants:

  • a personal history identifiable in the VA EMR of a major psychiatric disorder related to psychosis or a first degree family member with either schizophrenia or bipolar disorder
  • major neurologic illnesses, or systemic medical illnesses, that could interfere with central nervous system function
  • current treatment with psychotropic medications aimed at psychosis, bipolar disorder, or major depression
  • anyone participating in an ongoing randomized trial of therapy for SZ or BP

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

Coortes e Intervenções

Grupo / Coorte
Grupo 1

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Prazo
Phenotypic cognitive and functional outcomes associated with SZ and BP
Prazo: 3 years
3 years

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Investigadores

  • Cadeira de estudo: Philip D. Harvey, PhD, Miami VA Healthcare System, Miami, FL

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo

1 de fevereiro de 2011

Conclusão Primária (Real)

1 de junho de 2014

Conclusão do estudo (Real)

1 de julho de 2014

Datas de inscrição no estudo

Enviado pela primeira vez

21 de junho de 2010

Enviado pela primeira vez que atendeu aos critérios de CQ

21 de junho de 2010

Primeira postagem (Estimativa)

23 de junho de 2010

Atualizações de registro de estudo

Última Atualização Postada (Estimativa)

16 de abril de 2015

Última atualização enviada que atendeu aos critérios de controle de qualidade

15 de abril de 2015

Última verificação

1 de abril de 2015

Mais Informações

Termos relacionados a este estudo

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

Se inscrever