Theta-Burst Stimulation to Treat Depression

The goal of this clinical trial is to explore the effects of non-invasive brain stimulation protocols using intermittent theta-burst stimulation (iTBS) on brain plasticity and depression severity in depressed individuals aged 18 to 50 years old. Brain plasticity is the brain's ability to change through growth or reorganization. iTBS is a form of transcranial magnetic stimulation (TMS), where magnetic pulses are applied to the scalp using a coil. These pulses pass through the scalp, and can alter brain activity in the area underneath the coil. Based on previous research conducted in animals and humans, researchers believe that iTBS can strengthen the connections between cells in the brain, leading to improved brain plasticity. This trial will compare the effects of the compressed iTBS (iTBS-c) protocol, which is commonly used to treat depression, and the spaced iTBS (iTBS-s) protocol. Researchers want to find out which protocol is better able to produce changes in brain plasticity and improve symptoms of depression among individuals diagnosed with Major Depressive Disorder (MDD). In this trial, participants will be randomized to receive 3 sessions of iTBS-s or iTBS-c, undergo a washout period of at least 2 weeks, then complete 3 sessions of the opposite iTBS intervention. Participants will complete 5 study visits within the span of 2-3 months, including: * Screening assessments to determine eligibility \& 1 sham iTBS (iTBS-sh) session to assess tolerability of the brain sti…

This description comes directly from the study's public registry record.

Christoph Zrenner, MD  ·  416-535-8501  ·  christoph.zrenner@camh.ca

Dewi Clark, MHSc  ·  416-535-8501  ·  dewi.clark@camh.ca

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