This study uses functional magnetic resonance imaging (fMRI) to investigate the effects of two different antidepressant medications (Paxil CR versus Wellbutrin XL) on reward processing in depressed patients who have attempted suicide or are currently experiencing suicidal thoughts.
Major depressive disorder (MDD) is a common and serious psychiatric illness. It is among the leading causes of disability and is the psychiatric disorder most often associated with suicide. The treatment of MDD with antidepressant medication remains largely trial and error. Little empirical evidence exists to guide the treatment of MDD when suicide risk is a major factor. The study uses functional magnetic resonance imaging (fMRI) to compare the effects of paroxetine, an SSRI, versus bupropion, a non-SSRI, on brain activity in depressed patients with a past suicide attempt and/or current suicidal thoughts. Participants are randomly assigned to either paroxetine or bupropion treatment for 8 weeks, with fMRI scans involving a reward processing task at baseline and Week 8. Weekly study visits include interviews with a psychologist, self-report scales, and medication monitoring. All participants will then be offered 4 additional months of open clinical treatment. If original medication assignments prove to be ineffective, participants will have the option to switch to another medication. After completing the study, participants will be referred for ongoing treatment.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
15
Dosage will be 25mg every day for 2 weeks, then 37.5mg every day for 2 weeks, and then optional increase to 50mg every day for the remainder of treatment.
Dosage will be 150mg every day for 2 weeks, then 300mg every day for 2 weeks, and then optional increase to 450mg every day for the remainder of treatment.
Columbia University/New York State Psychiatric Institute
New York, New York, United States
Percent Change in Contrast of Parameter Estimates (COPE)
% change in COPE = (Post-treatment COPE - Pre-treatment COPE) / Pre-treatment COPE COPE is measured during Monetary Incentive Delay Task. Task conditions are: Reward= BOLD signal when subject wins 5 cents vs. wins 0 cents Punishment= BOLD signal when subject loses 5cents vs. loses 0 cents
Time frame: Measured at Baseline (pre-treatment) and Week 8 (post-treatment)
Change in Suicidal Ideation (SSI Score)
Beck Scale of Suicidal Ideation Minimum Value = 0 Maximum Value = 38 Higher score is more severe suicidal thoughts
Time frame: Measured at Baseline and Week 8
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