The researchers, led by Dr. Mark Demitrack, the chief medical officer of Neuronetics, Inc. and Dr. Kit Simpson of Medical University of South Carolina, studied 306 patients with major depressive disorder who were treated with a TMS device called the NeuroStar TMS Therapy®. (Neurostar was the first TMS therapy on the market, and in 2013, the FDA approved another TMS device called Brainsway.) After one year, people who received six weeks of daily TMS, which targeted the mood regions of the brain, 53% reported no or mild depression. After a comparable period of time, only 38% of people on antidepressants reported the same benefit.
“I think TMS is a very valuable addition to our treatment,” says Dr. Amit Anand, the vice chair for at the Center for Behavioral Health at Cleveland Clinic. Anand was not involved in the research. “It’s a way to treat depression directly, with few side effects. Other research has shown only a small percentage of people respond to it, but I think if even a quarter of those people respond, it’s a benefit.”
Dr. Anand says the Cleveland Clinic will soon be offering the service, which he sees as an option that lies somewhere between antidepressants and ECT. “I think it’s best for people who cannot tolerate antidepressants due to side effects,” he says. “It is does give people hope, but I think expectations should be realistic.”
Dr. Demitrack says TMS comes in when doctors and patients are looking for a second option. “The next option would be the addition of another medication, or they might be recommended to receive Electroconvulsive therapy (ECT), which is more invasive and complicated.” Instead, they could try TMS.
In TMS therapy, a large magnet is put to the left side of the patient’s head. Magnetic pulses are thought to stimulate areas of the patient’s brain that are underactive and are involved in mood regulation. The patient is awake and alert the entire time. The are few side effects other than occasional headaches