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

Schizophrenia Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01149551
• Other study ID #: 572
• Status: Completed
• Phase: N/A
• First received: June 21, 2010
• Last updated: April 15, 2015
• Start date: February 2011
• Est. completion date: July 2014

Study information

• Verified date: April 2015
• Source: VA Office of Research and Development
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Federal Government
• Study type: Observational

Clinical 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. 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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 9356
• Est. completion date: July 2014
• Est. primary completion date: June 2014
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 18 Years and older

Eligibility

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

Study Design

Observational Model: Case Control

Related Conditions & MeSH terms

• Bipolar Disorder
• Schizophrenia

Locations

Country	Name	City	State
United States	New Mexico VA Health Care System, Albuquerque, NM	Albuquerque	New Mexico
United States	Baltimore VA Medical Center VA Maryland Health Care System, Baltimore, MD	Baltimore	Maryland
United States	VA Medical Center, Birmingham, AL	Birmingham	Alabama
United States	VA Boston Healthcare System Brockton Campus, Brockton, MA	Brockton	Massachusetts
United States	Ralph H. Johnson VA Medical Center, Charleston, SC	Charleston	South Carolina
United States	Cincinnati VA Medical Center, Cincinnati, OH	Cincinnati	Ohio
United States	Atlanta VA Medical and Rehab Center, Decatur, GA	Decatur	Georgia
United States	Michael E. DeBakey VA Medical Center, Houston, TX	Houston	Texas
United States	Richard L. Roudebush VA Medical Center, Indianapolis, IN	Indianapolis	Indiana
United States	VA Central Western Massachusetts Healthcare System, Leeds, MA	Leeds	Massachusetts
United States	VA Long Beach Healthcare System, Long Beach, CA	Long Beach	California
United States	Miami VA Healthcare System, Miami, FL	Miami	Florida
United States	Minneapolis VA Health Care System, Minneapolis, MN	Minneapolis	Minnesota
United States	Manhattan Campus of the VA NY Harbor Healthcare System, New York, NY	New York	New York
United States	Central Arkansas VHS Eugene J. Towbin Healthcare Center, Little Rock, AR	No. Little Rock	Arkansas
United States	VA Palo Alto Health Care System, Palo Alto, CA	Palo Alto	California
United States	Philadelphia VA Medical Center, Philadelphia, PA	Philadelphia	Pennsylvania
United States	VA Pittsburgh Healthcare System University Drive Division, Pittsburgh, PA	Pittsburgh	Pennsylvania
United States	Salisbury W.G. (Bill) Hefner VA Medical Center, Salisbury, NC	Salisbury	North Carolina
United States	VA San Diego Healthcare System, San Diego, CA	San Diego	California
United States	VA Puget Sound Health Care System American Lake Division, Tacoma, WA	Tacoma	Washington
United States	VA Medical Center, Tuscaloosa, AL	Tuscaloosa	Alabama
United States	Central Texas Veterans Health Care System Waco VA Medical Center, Waco, TX	Waco	Texas
United States	Washington DC VA Medical Center, Washington, DC	Washington	District of Columbia
United States	VA Connecticut Healthcare System West Haven Campus, West Haven, CT	West Haven	Connecticut

Sponsors (1)

Lead Sponsor	Collaborator
VA Office of Research and Development

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Phenotypic cognitive and functional outcomes associated with SZ and BP		3 years	No