Study of Genes in Relation to Seasonal Affective Disorder and Major Depressive Disorder (Seasonality605)

The recruitment status of this study is unknown because the information has not been verified recently.
Verified February 2011 by University of Pittsburgh.
Recruitment status was  Recruiting
Information provided by:
University of Pittsburgh Identifier:
First received: February 8, 2011
Last updated: February 9, 2011
Last verified: February 2011
The investigators are looking for volunteers who have a history of Major Depressive Disorder, the Winter Blues, or Seasonal Affective Disorder or healthy volunteers who do not have a history of these disorders for a research study on genetics. Participation involves one 2-3 hour visit involving two diagnostic interviews, DNA collection, and questionnaires.

Seasonal Affective Disorder

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Cross-Sectional
Official Title: Gene Polymorphisms in Mood Disorders

Resource links provided by NLM:

Further study details as provided by University of Pittsburgh:

Biospecimen Retention:   Samples With DNA
Saliva samples for DNA collection

Estimated Enrollment: 400
Study Start Date: October 2008
Seasonal Affective Disorder
Consists of Individuals with Seasonal Affective Disorder
Subsyndromal Seasonal Affective Disorder
Consists of individuals who do not meet SAD criteria,but present more symptoms for the disorder than do controls.
Major Depressive Disorder
Consists of individuals who have MDD.
Consists of individuals who do not present symptoms of SAD or MDD.


Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
community sample

Inclusion Criteria:

  • SAD or MDD
  • healthy control

Exclusion Criteria:

  • drug or alcohol dependence
  • Bipolar Disorder
  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 identifier: NCT01292889

United States, Pennsylvania
University of Pittsburgh Department of Psychology 605 Old Engineering Hall Recruiting
Pittsburgh, Pennsylvania, United States, 15260
Contact: Kathryn A Roecklein, PhD    412-624-9180   
Sponsors and Collaborators
University of Pittsburgh
  More Information

No publications provided

Responsible Party: Kathryn Roecklein, PI, University of Pittsburgh Identifier: NCT01292889     History of Changes
Other Study ID Numbers: Seasonality605
Study First Received: February 8, 2011
Last Updated: February 9, 2011
Health Authority: United States: Institutional Review Board

Keywords provided by University of Pittsburgh:
Seasonal Affective Disorder
Major Depressive Disorder
Winter Blues

Additional relevant MeSH terms:
Depressive Disorder
Depressive Disorder, Major
Mood Disorders
Seasonal Affective Disorder
Mental Disorders
Pathologic Processes processed this record on November 27, 2015