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

15 kwietnia 2015 zaktualizowane przez: 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.

Przegląd badań

Status

Zakończony

Warunki

Szczegółowy opis

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.

Typ studiów

Obserwacyjny

Zapisy (Rzeczywisty)

9356

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Lokalizacje studiów

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

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

18 lat i starsze (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Tak

Płeć kwalifikująca się do nauki

Wszystko

Metoda próbkowania

Próbka bez prawdopodobieństwa

Badana populacja

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

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

Opis

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

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

Liczba grup / kohort

Kohorty i interwencje

Grupa / Kohorta
Grupa 1

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku	Ramy czasowe
Phenotypic cognitive and functional outcomes associated with SZ and BP Ramy czasowe: 3 years	3 years

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

US Department of Veterans Affairs

Śledczy

Krzesło do nauki: Philip D. Harvey, PhD, Miami VA Healthcare System, Miami, FL

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów

1 lutego 2011

Zakończenie podstawowe (Rzeczywisty)

1 czerwca 2014

Ukończenie studiów (Rzeczywisty)

1 lipca 2014

Daty rejestracji na studia

Pierwszy przesłany

21 czerwca 2010

Pierwszy przesłany, który spełnia kryteria kontroli jakości