Optimization of ITBS for Depression
This research is investigating how to make a brain stimulation treatment, called intermittent theta burst TMS (iTBS), even better for people with depression that hasn't responded to other treatments. iTBS uses magnetic pulses to gently change how brain cells work, helping the brain to adapt and form new connections. We're specifically looking at two important aspects: the 'shape' of these magnetic pulses and how long each pulse lasts. These details might make a big difference in how well the treatment works. The main goal is to find the most effective settings for iTBS to help improve brain activity, which could lead to better treatments for depression in the future.
At a glance
What is this study about?
You may have heard of a treatment called rTMS, which stands for repetitive transcranial magnetic stimulation. It's a way to gently stimulate parts of the brain using magnetic fields. Think of it like a very focused magnetic pulse that can slightly change how active brain cells are. This change can help your brain adapt and create new connections, a bit like how muscles get stronger with exercise. This ability of the brain to reorganise itself is called 'brain plasticity'.
A specific type of rTMS, called intermittent theta burst TMS (iTBS), is often used to help people with depression that hasn't improved with other treatments. It's designed to encourage the brain to make helpful changes. In this study, we want to make iTBS even more effective. We're focusing on two specific details of the treatment: the 'shape' of the magnetic pulses and how long each pulse is given. These sound like small things, but they might be very important in how well the treatment works to encourage brain changes.
The main aim of this study is to compare these different ways of giving iTBS. By understanding which 'shape' and 'duration' of magnetic pulse works best to promote brain plasticity, we hope to improve the standard treatments for depression. Ultimately, this research aims to find better ways to help people living with treatment-resistant depression.
Key takeaways
- This study is researching ways to make a brain stimulation treatment (iTBS) more effective for depression.
- It focuses on how magnetic pulses are delivered: their 'shape' and 'duration'.
- The goal is to find the best settings to help the brain adapt and improve mood.
- Participation is for healthy, right-handed adults aged 18-35.
- You cannot have metal implants, certain medical conditions, or be on specific medications.
- Your involvement could help improve future depression treatments.
Who may be eligible?
To take part in this study, you need to be a healthy adult between 18 and 35 years old. We're also looking for people who are right-handed. It's important that you are generally in good health.
There are some reasons why you wouldn't be able to join. For example, if you have any metal implants in your body (like a pacemaker, cochlear implant, or even metal splinters in your head), this treatment isn't safe for you. We also can't include people who have a history of seizures, a known brain condition, or certain other medical issues like tinnitus (ringing in the ears).
You also can't take part if you are pregnant or breastfeeding, or if you have tattoos in the area where the stimulation would be applied. If you are currently taking certain mental health medications, have used recreational drugs or alcohol heavily in the last six months, or have other implanted devices like insulin pumps, you would also not be eligible.
Could this study suit you?
Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.
- Are you between 18 and 35 years old?
- Are you right-handed?
- Do you have any metal implants (e.g., pacemaker, metal in your head)? (If YES, you likely can't join)
- Do you have a history of seizures or a known neurological condition? (If YES, you likely can't join)
- Are you pregnant or breastfeeding? (If YES, you likely can't join)
- Are you currently taking mental health medications? (If YES, you likely can't join)
What does participation involve?
The information provided does not detail what taking part involves in terms of visits, assessments, medication, follow-up, or total duration. More details would be given by the research team.
Potential risks and benefits
Locations (1)
- Centre de recherche du Centre hospitalier universitaire de SherbrookVerified postcodeSherbrooke, Canada· Recruiting
Common questions
What is iTBS?
iTBS is a type of brain stimulation using magnetic pulses to help encourage your brain to adapt and form new connections, especially for depression.
Why are you studying different 'shapes' and 'durations' of the magnetic pulses?
We believe that slightly different ways (shapes) of delivering the magnetic pulses and how long they last (durations) might make the treatment work better for the brain.
Will this treatment cure my depression?
This is a research study aimed at improving treatments. While we hope to find more effective methods, it's never guaranteed to 'cure' a condition and outcomes can vary.
Is the treatment painful?
The stimulation is generally well-tolerated. Some people might feel a tapping sensation on their scalp or a mild headache afterwards, which usually goes away quickly.
Can I still continue my depression medication if I join?
The study states you cannot be currently taking 'psychotropic medication', which includes many depression medications. This would need to be discussed carefully with the study team and your doctor.
How to find out more
Samantha Cote, Ph.D.
Always speak to your GP or specialist before deciding to take part in a study.
Interested in taking part?
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