Accelerated Intermittent Theta-Burst Stimulation (aiTBS) in Treatment-Resistant Depression of Bipolar II Disorder

This study is testing a type of brain stimulation called accelerated intermittent theta-burst stimulation (aiTBS) — a non-invasive procedure that uses magnetic pulses to stimulate areas of the brain — to treat depression in people with bipolar II disorder who haven't responded to standard treatments. **You may be eligible if...** - You are between 18 and 80 years old - You have been diagnosed with bipolar II disorder and are currently in a major depressive episode - Your depression has not adequately responded to antidepressant medications - You are not currently in a manic or hypomanic episode **You may NOT be eligible if...** - You have a history of seizures or epilepsy - You have metal implants in or near your head (like a cochlear implant or certain aneurysm clips) - You are pregnant - You have had brain surgery or have significant neurological conditions - You have recently started or changed psychiatric medications Talk to your doctor to see if this trial is right for you.