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SchizophreniaNCT01149551

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

An observational study of Schizophrenia and Bipolar Disorder, run by US Department of Veterans Affairs at 25 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Schizophrenia, Bipolar Disorder
How many people
9,356 participants
Where
25 sitesUnited States
Study dates
Feb 2011to Jul 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Case participants: Enrolled Veterans with a confirmed diagnosis of SZ and BP. Control participants: Psychiatrically healthy Veterans enrolled in VA Million Veteran Program.

Who may be able to join

  • 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

Who cannot join

  • 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
Show all 9Show fewer
  • 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

Trial locations and contacts

25 sites in 1 country.

25 sites in 1 country

United States25 sites
  • New Mexico VA Health Care System, Albuquerque, NM

    Albuquerque, New Mexico, 87108-5153

  • Baltimore VA Medical Center VA Maryland Health Care System, Baltimore, MD

    Baltimore, Maryland, 21201

  • VA Medical Center, Birmingham, AL

    Birmingham, Alabama, 35233

  • VA Boston Healthcare System Brockton Campus, Brockton, MA

    Brockton, Massachusetts, 02301

  • Ralph H. Johnson VA Medical Center, Charleston, SC

    Charleston, South Carolina, 29401-5799

  • Cincinnati VA Medical Center, Cincinnati, OH

    Cincinnati, Ohio, 45220

  • Atlanta VA Medical and Rehab Center, Decatur, GA

    Decatur, Georgia, 30033

  • Michael E. DeBakey VA Medical Center, Houston, TX

    Houston, Texas, 77030

  • Richard L. Roudebush VA Medical Center, Indianapolis, IN

    Indianapolis, Indiana, 46202-2884

  • VA Central Western Massachusetts Healthcare System, Leeds, MA

    Leeds, Massachusetts, 01053-9764

  • VA Long Beach Healthcare System, Long Beach, CA

    Long Beach, California, 90822

  • Miami VA Healthcare System, Miami, FL

    Miami, Florida, 33125

  • Minneapolis VA Health Care System, Minneapolis, MN

    Minneapolis, Minnesota, 55417

  • Manhattan Campus of the VA NY Harbor Healthcare System, New York, NY

    New York, New York, 10010

  • Central Arkansas VHS Eugene J. Towbin Healthcare Center, Little Rock, AR

    No. Little Rock, Arkansas, 72114-1706

  • VA Palo Alto Health Care System, Palo Alto, CA

    Palo Alto, California, 94304-1290

  • Philadelphia VA Medical Center, Philadelphia, PA

    Philadelphia, Pennsylvania, 19104

  • VA Pittsburgh Healthcare System University Drive Division, Pittsburgh, PA

    Pittsburgh, Pennsylvania, 15240

  • Salisbury W.G. (Bill) Hefner VA Medical Center, Salisbury, NC

    Salisbury, North Carolina, 28144

  • VA San Diego Healthcare System, San Diego, CA

    San Diego, California, 92161

  • VA Puget Sound Health Care System American Lake Division, Tacoma, WA

    Tacoma, Washington, 98493

  • VA Medical Center, Tuscaloosa, AL

    Tuscaloosa, Alabama, 35404

  • Central Texas Veterans Health Care System Waco VA Medical Center, Waco, TX

    Waco, Texas, 76711

  • Washington DC VA Medical Center, Washington, DC

    Washington D.C., District of Columbia, 20422

  • VA Connecticut Healthcare System West Haven Campus, West Haven, CT

    West Haven, Connecticut, 06516

Other trials in United States

About this study

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.

Read the detailed description

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.

Keywords
Schizophrenia, Bipolar disorder, Genetic research
Medical subject headings
Schizophrenia, Bipolar Disorder

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01149551
Study groupRoleWhat they receive
Group 1Not described

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Phenotypic cognitive and functional outcomes associated with SZ and BP

    Measured: 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jun 2010 (estimated)
  2. Study startFeb 2011
  3. Primary completionJun 2014
  4. Study completionJul 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Enrolment
9,356 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01149551
Sponsor's protocol ID
572
Status last verified
Apr 2015
First submitted
21 Jun 2010
Last updated
16 Apr 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Schizophrenia and Bipolar Disorder, run by US Department of Veterans Affairs at 25 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Apr 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 25 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Phenotypic cognitive and functional outcomes associated with SZ and BP (time frame: 3 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Apr 2015.

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