At a glance
ClinicalIndex Comparison RecordStandardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
Dopaminergic Effects of Adjunctive Aripiprazole on the Brain in Treatment-Resistant Depression: A Raclopride/F-DOPA Positron Emission Tomography and Functional MRI Study
In Brief
A clinical study evaluating Escitalopram, Aripiprazole, and 2 other interventions for Major Depressive Disorder. Completed, enrolled 43 participants across 1 site.
Detailed Summary
Aripiprazole has been approved by the FDA for augmenting ineffective/partially effective oral antidepressant therapy in patients suffering from major depression. The mechanism by which this augmentation is achieved is not known. This study has been designed to test the hypothesis that the primary mechanism of action of aripiprazole (ARP) antidepressant augmentation is through the dopaminergic pathway. Two positron emission tomography (PET) scan procedures and a functional magnetic resonance imaging (fMRI) scan will be used to test this hypothesis.
Study Details
Timeline
Interventions
All subjects will begin on escitalopram and placebo for 8 weeks
Subjects who fail to respond to Escitalopram will continue on Escitalopram and augment with active Aripiprazole.
All subjects will begin on escitalopram and placebo capsule for 8 weeks.
After 8 weeks, subjects will be given a 2 week supply of escitalopram and placebo tablet.