Evaluation of the Genetics of Bipolar Disorder

This study is currently recruiting participants. (see Contacts and Locations)
Verified January 2015 by National Institutes of Health Clinical Center (CC)
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Institute of Mental Health (NIMH) )
ClinicalTrials.gov Identifier:
First received: November 3, 1999
Last updated: February 6, 2015
Last verified: January 2015
This study looks to identify genes that may affect a person's chances of developing bipolar disorder (BP) and related conditions.

Bipolar, Disorder
Mood Disorder
Manic Depression

Study Type: Observational
Study Design: Time Perspective: Retrospective
Official Title: Bipolar Genetics: A Collaborative Study

Resource links provided by NLM:

Further study details as provided by National Institutes of Health Clinical Center (CC):

Estimated Enrollment: 4000
Study Start Date: August 1980
Detailed Description:
Bipolar affective disorder is a severe, heritable condition affecting about one percent of the population. The mode of inheritance is poorly understood and probably involves multiple loci of small to moderate effect. Genetic linkage has been reported to a number of chromosomal regions; some findings have been replicated. In 1988 the NIMH began a national archival database to search for susceptibility loci/genes in this condition. Its purpose was to collect a large sample of interviews and cell lines from families suitable for linkage and association studies. Since 1988, the NIMH-IRP has been an active site in this multi-center study. The protocol was originally supervised by Elliot Gershon, MD (1988-July 1998) and Dennis L. Murphy, MD (July 1998 January 2004). In January 2004, Francis J. McMahon, M.D, took over supervision of the protocol. An expanded Consortium of sites concentrating on families identified through a sib pair was approved in August 1998 by the NIMH Extramural Program (MH 59535) via a competitive application. This Consortium added 450 new families and 2500 cell lines. Cell lines, clinical data, and 2 genome-wide sets of microsatellite genotypes have been made freely available to the scientific community under the auspices of the NIMH Center for Genetic Studies. In 2003, the IRB approved an amendment to expand the ascertainment criteria to include sib-pairs with a diagnosis of bipolar II disorder. Families ascertained in this manner are contributed to a second, large sample being collected in collaboration with The Johns Hopkins University and the University of Chicago, known as the CHIP study. In October 2003, the NIMH Extramural Program approved, via a competitive application, an additional 4 years of support for the Consortium collection, now including 11 extramural sites in addition to the IRP site. In this round, the focus will shift from affected sibling pairs to parent-affected offspring triads, with the goal of accruing a large sample suitable for future association studies. Both the Consortium and CHIP projects have similar study design and essentially identical recruitment, evaluation, and analysis procedures, so both projects are described together in what follows.

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Age > 18 yr

Able to provide informed consent

Diagnosed with bipolar disorder not attributable to substance abuse, neurological disease; or a 1st or 2nd degree relative of an enrolled participant

Able to safely provide a blood or saliva sample


Active alcohol or substance abuse

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00001174

Contact: Joan Mallinger, Ph.D. (301) 594-0576 mallingerj@mail.nih.gov
Contact: Francis J McMahon, M.D. (301) 451-4453 mcmahonf@mail.nih.gov

United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike Recruiting
Bethesda, Maryland, United States, 20892
Contact: For more information at the NIH Clinical Center contact Patient Recruitment and Public Liaison Office (PRPL)    800-411-1222 ext TTY8664111010    prpl@mail.cc.nih.gov   
Sponsors and Collaborators
National Institute of Mental Health (NIMH)
Principal Investigator: Francis J McMahon, M.D. National Institute of Mental Health (NIMH)
  More Information

Additional Information:
Responsible Party: National Institutes of Health Clinical Center (CC) ( National Institute of Mental Health (NIMH) )
ClinicalTrials.gov Identifier: NCT00001174     History of Changes
Other Study ID Numbers: 800083, 80-M-0083
Study First Received: November 3, 1999
Last Updated: February 6, 2015
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
Bipolar Manic-Depressive Illness
Affective Disorder
Affected Sibling Pairs
Family Study
Genome-Wide Scan
Lymphoblastoid Cell Lines
Diagnostic Interview for Genetic Studies (DIGS)
Panic Disorder
Bipolar Disorder

Additional relevant MeSH terms:
Bipolar Disorder
Depressive Disorder
Mood Disorders
Affective Disorders, Psychotic
Behavioral Symptoms
Mental Disorders
Pathologic Processes

ClinicalTrials.gov processed this record on November 25, 2015