Examining the Link Between Depression and Seasonal Allergies

Completed

Conditions studied: Depression

In brief

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.

Key facts

Study ID

NCT00770068

Run by

University of Maryland, Baltimore

People needed

100

Starts

2006-07-15

Expected to finish

2017-04-11

Last updated by the study team

2019-11-21

Who can join

Age: 18 and older, up to 64. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Diagnosis of major depressive disorder or bipolar disorder

You may not qualify if…

• 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

Where it is running

• National Center for the Treatment of Phobias, Anxiety, and Depression — Washington D.C., District of Columbia, United States
• University of Maryland — Baltimore, Maryland, United States

Full record on ClinicalTrials.gov

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