Genetics of Recurrent Early-Onset Depression (GenRED)
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT00005914|
Recruitment Status : Completed
First Posted : June 16, 2000
Last Update Posted : April 19, 2019
This nationwide study will create a DNA collection to permit qualified scientists to search for depression-related genes.
More than 750 families with at least two siblings who have experienced major depression are needed for the study. Participants will be interviewed about psychiatric and family history, and will be asked to provide a small blood specimen. The identification of predisposing genes can lead to greater understanding of the brain mechanisms involved in severe depression which can in turn lead to the discovery of new treatments.
A Certificate of Confidentiality from the federal government ensures that all information will be strictly confidential. Blood specimens are identified only by code number (not by name).
Reimbursement is provided.
|Condition or disease|
Studies of patterns of major depression in families suggest that 50 to 70% of the predisposition to major depression is caused by genes. People with recurrent depression and earlier ages of onset have more relatives with depression. There are probably at least several interacting genes, rather than a single gene as in some disorders. The identification of predisposing genes is likely to lead to greater understanding of the brain mechanisms involved in severe depression. This could lead to the discovery of new treatments.
This study will create a DNA collection to permit qualified scientists to search for depression-related genes. More than 750 families with at least two siblings who have experienced major depression are needed for the study.
Participants in this study will be interviewed about psychiatric and family history, and will be asked for a small blood specimen. Interviews can be conducted in person or by telephone. For telephone interviews, blood sample collection will be arranged at a location and time convenient for the participant. Participants will also be asked for help in inviting other family members to participate. No family member will be contacted without the permission and assistance of another participating family member.
For information on a related study, please follow this link:
|Study Type :||Observational|
|Actual Enrollment :||2533 participants|
|Official Title:||Genetics of Recurrent Early-Onset Depression|
|Study Start Date :||October 1999|
|Actual Primary Completion Date :||October 2005|
|Actual Study Completion Date :||October 2005|
Probands and family members
Individuals with major depressive disorder who meet study criteria, and members of their families. No intervention. This is a genetic study only.
- Major depressive disorder [ Time Frame: One patient interview session (typically 2 hours), and blood draw (10-20 minutes) ]Participants will attend an interview regarding personal and family history of psychiatric disorders, and give a blood specimen. Genotypes from blood samples will be studied for genetic linkage (within families) with the presence of major depressive disorder.
Biospecimen Retention: Samples With DNA
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00005914
|United States, Illinois|
|Rush Presbyterian - Saint Luke's Med Ctr|
|Chicago, Illinois, United States, 60612|
|United States, Iowa|
|Univ of Iowa Hosp and Clinic|
|Iowa City, Iowa, United States, 52242|
|United States, Maryland|
|Johns Hopkins University|
|Baltimore, Maryland, United States, 21287-7381|
|United States, New York|
|New York State Psychiatric Institute / Columbia Univ|
|New York, New York, United States, 10032|
|United States, Pennsylvania|
|Univ of Pennsylvania|
|Philadelphia, Pennsylvania, United States, 19104-2648|
|Univ of Pittsburgh / Western Psychiatric Inst and Clinic|
|Pittsburgh, Pennsylvania, United States, 15213|
|Principal Investigator:||Myrna Weissman||Columbia University|
|Principal Investigator:||J R DePaulo||Johns Hopkins University|
|Principal Investigator:||William Scheftner||Rush University Hospital|
|Principal Investigator:||Raymond Crowe||University of Iowa|
|Principal Investigator:||Douglas Levinson||University of Pennsylvania|
|Principal Investigator:||George Zubenko||University of Pittsburgh|