Status:
COMPLETED
Examining the Link Between Depression and Seasonal Allergies
Lead Sponsor:
University of Maryland, Baltimore
Collaborating Sponsors:
National Institute of Mental Health (NIMH)
Conditions:
Depression
Eligibility:
All Genders
18-64 years
Brief Summary
This study will examine whether spring and fall seasonal depression in individuals with high sensitivity to pollen is linked to seasonal increases in tree and ragweed pollen.
Detailed Description
Those who suffer from depression have their normal lives interrupted by symptoms such as persistent sad thoughts, inability to feel pleasure, and potential suicide. Suicide and depression peak in the ...
Eligibility Criteria
Inclusion
- Diagnosis of major depressive disorder or bipolar disorder
Exclusion
- Pregnancy or intention to become pregnant within the duration of the study
- Dependence on alcohol, cocaine, stimulants, benzodiazepines, marijuana, or opiates
- Major medical illness, including cancer, hepatitis, and autoimmune disease
- A winter subtype of seasonal affective disorder
- Diagnosis of psychotic disorder
- Positive result in Phadiatop allergy test, but negative result in tree or ragweed pollen IgE test
Key Trial Info
Start Date :
July 15 2006
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
April 11 2017
Estimated Enrollment :
100 Patients enrolled
Trial Details
Trial ID
NCT00770068
Start Date
July 15 2006
End Date
April 11 2017
Last Update
November 21 2019
Active Locations (2)
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1
National Center for the Treatment of Phobias, Anxiety, and Depression
Washington D.C., District of Columbia, United States, 20037
2
University of Maryland
Baltimore, Maryland, United States, 21201