At a glance
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Repetitive Transcranial Magnetic Stimulation for Adolescent Depression: Efficacy, Predictive Biomarkers, and Mechanisms
In Brief
A clinical study evaluating Active Repetitive Transcranial Magnetic Stimulation (rTMS): intensity 80% MT, Device: Active Repetitive Transcranial Magnetic Stimulation (rTMS); Stimulation intesity: 100% of MT, and 1 other intervention for Treatment Resistant Depression. Completed, enrolled 24 participants across 1 site.
Detailed Summary
This study will be an open-label 6-week (30 session) trial of active repetitive transcranial magnetic stimulation (rTMS) using a fixed frequency (10 Hz) but varying stimulation intensities using a 3+3 study design for safety and tolerability amongst adolescents. This means that we will only enroll 3 participants at a time and give them rTMS at the stimulation intensity energy of 80% of motor threshold (MT). If all three participants complete the 6 weeks of treatment with no major safety events (i.e. seizure), we will increase the energy for the next 3 participants by 20%. If 1 of the 3 participants has a major safety event, we will enroll 3 more patients at the SAME energy. We will proceed in this manner, increasing by 20% after 3 subjects safely complete treatment at that energy, to a maximum energy of 120% of motor threshold. If 2 participants in each intensity level cohort experience a major safety event, we will discontinue running subjects at that energy level. If this happens at our initial energy level of 80% of MT, we will stop the study. If we reach 2 events in any of the higher energy cohorts, we will return to the previous energy level and complete the remainder of the subjects at that energy level.
Study Details
Timeline
Interventions
rTMS applies a pulsatile magnetic field to the scalp which painlessly induces electrical currents to the brain. Typically, rTMS is applied to the dorsolateral prefrontal cortex (DLPFC), a brain region that is hypoactive in depression. Whereas standard rTMS stimulates superficial (1cm depth) cortical areas, recent advances in rTMS coil technology support stimulation of deeper (5 cm depth) limbic structures that are also relevant to depression. Other Name: Brainsway rTMS
rTMS applies a pulsatile magnetic field to the scalp which painlessly induces electrical currents to the brain. Typically, rTMS is applied to the dorsolateral prefrontal cortex (DLPFC), a brain region that is hypoactive in depression. Whereas standard rTMS stimulates superficial (1cm depth) cortical areas, recent advances in rTMS coil technology support stimulation of deeper (5 cm depth) limbic structures that are also relevant to depression. Other Name: Brainsway rTMS
rTMS applies a pulsatile magnetic field to the scalp which painlessly induces electrical currents to the brain. Typically, rTMS is applied to the dorsolateral prefrontal cortex (DLPFC), a brain region that is hypoactive in depression. Whereas standard rTMS stimulates superficial (1cm depth) cortical areas, recent advances in rTMS coil technology support stimulation of deeper (5 cm depth) limbic structures that are also relevant to depression. Other Name: Brainsway rTMS