About this trial
This is a 2x2, within-subjects, cross-over trial to test the anti-depressant effects of acute exercise in 20 participants with bipolar depression. Participants will complete four experimental sessions, two with an exercise challenge and two with a resting control condition in a counterbalanced order. Participants will receive either 800mg of ibuprofen or placebo before exercise or rest in order to test whether blocking the inflammatory response to exercise interferes with the neural and psychological effects of exercise.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Provision of signed and dated informed consent form
Has an established residence and phone
Agrees to and is eligible for behavioral testing, magnetic resonance imaging, and blood draws.
Stated willingness to comply with all study procedures and lifestyle considerations (see Section 5.3, Lifestyle Considerations) and availability for the duration of the study
Disqualifiers
Diagnosis of any other major psychiatric disorder such as schizoaffective disorder, schizophrenia, or current psychotic depression
A history of bipolar disorder with rapid cycling
Concurrent manic symptoms of sufficient severity to pose a substantial risk of the development of a manic episode (>19 on the YMRS)
Current drug or alcohol or substance use disorder moderate or severe, except nicotine (within 6 months for severe use disorder; 2 months for moderate use disorder)
Trial design
Crossover
Treatments tested in this trial
Exercise Session
Other intervention30 min cycling on bicycle ergometer at 60% peak power output
Ibuprofen 800 mg
DrugA single oral dose of Ibuprofen
Rest
Other interventionResting for 30 min in chair
Placebo
DrugMatched placebo
Treatment groups
Trial outcomes
Primary outcomes
Inflammation
Serum concentrations of interleukin 6 (IL-6)
Neural Response to Reward Anticipation
Percent Signal Change in Ventral Striatum During Monetary Incentive Delay
Secondary outcomes
Neural Response to Reward Receipt
Percent Signal Change in Ventral Striatum During Monetary Incentive Delay (MID) task
Brain Volume
Gray Matter Volume of the Hippocampus
Inflammation
Serum concentrations of tumor necrosis factor (TNF)
Inflammation
Serum concentrations of interleukin 10 (IL-10)
Sponsors and contacts
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