TMS can reduce depression symptoms, especially after prior treatments fail, but response and remission vary, and treatment typically involves six to nine weeks of sessions.
Does TMS work for depression?
Transcranial magnetic stimulation, usually called TMS, is a non-surgical treatment that uses magnetic pulses to stimulate targeted areas of the brain. It is used most often for major depressive disorder, particularly when depression has not improved enough with previous treatment.
TMS was cleared by the FDA for major depressive disorder in 2008. In 2021, FDA clearance was expanded to include depression with comorbid anxiety. A course of treatment commonly involves weekday appointments over around six to nine weeks, often totalling about 36 sessions.
Whether TMS “works” is not always a simple yes-or-no question. Depression can improve in different ways and by different amounts. Some people experience a substantial reduction in symptoms. Some reach remission, meaning their symptoms become minimal or are no longer clinically significant on the measures used. Others notice a smaller change, no clear change, or find that their improvement does not last as long as hoped.
This guide explains how response and remission are usually discussed, what to keep in mind when reading published results, and why results can differ from person to person in North Carolina.
What does “response” to TMS mean?
In TMS research and clinical care, a response usually means that a person’s depression symptoms have reduced substantially from where they started.
Researchers commonly use structured depression rating scales before, during and after treatment. A response is often defined as a reduction of around half in a score on one of these scales. The exact scale and definition can vary between studies and clinics.
A response can be meaningful even if depression has not disappeared. For example, someone may still have low mood at times but find that:
- getting out of bed is easier;
- sleep, concentration or appetite have improved;
- daily tasks feel more manageable;
- they are less withdrawn from work, family or friends;
- thoughts of hopelessness occur less often.
Response does not necessarily mean that every symptom has resolved. It also does not mean that future support, medication, therapy or follow-up care will no longer be needed.
What does “remission” mean?
Remission is a stronger outcome than response. It generally means that symptoms have reduced to a low level on a recognised depression scale, with little remaining clinical impact.
In everyday terms, remission may mean a person feels much more like themselves and is no longer experiencing the full pattern of depressive symptoms that brought them to treatment. However, remission is not the same as a guarantee that depression will never return.
People can reach remission after TMS, but it is important to approach this outcome realistically. Depression is often recurrent, and a person’s circumstances, physical health, sleep, stress levels, medication changes and other mental health conditions can all affect how they feel over time.
Some clinics may discuss both symptom scores and practical changes in daily life. That can be useful, because rating scales provide a consistent way to track progress, while the person receiving treatment is best placed to describe what has changed in their life.
What do published TMS trials report?
Published TMS trials usually report outcomes in terms of response and remission rather than promising that treatment will work for everyone. They compare symptom scores over time and may look at the proportion of participants who reach a predefined response or remission threshold.
The broad picture from the evidence is that TMS can help a meaningful proportion of people with depression, including people whose symptoms have persisted despite earlier treatment. At the same time, published results vary between studies.
That variation matters. Trials can differ in:
- who was included, including the severity and duration of depression;
- how many previous treatments participants had tried;
- the TMS protocol used;
- how symptoms were measured;
- whether medication or talking therapy continued alongside TMS;
- how long participants were followed after treatment.
For that reason, it is better to treat published response and remission figures as general guides rather than a personal forecast. A percentage from one study cannot tell you exactly what will happen for you.
When discussing expected outcomes, a North Carolina TMS provider should be able to explain how they measure progress, when they review it, and what options may be considered if improvement is limited.
Why can individual TMS results vary?
TMS results vary for several understandable reasons. Depression is not one uniform condition, and neither is a person’s treatment history.
Someone with a shorter episode of depression may have a different outlook from someone who has lived with severe or recurrent symptoms for many years. Anxiety, trauma-related symptoms, substance use, chronic pain, sleep difficulties and physical illness may also affect wellbeing and recovery.
The details of treatment matter too. TMS involves repeated sessions, and attending consistently is generally important. A standard course is usually delivered on weekdays, which can require planning around work, caring responsibilities, transport and other appointments.
Other factors that may influence the experience include:
- whether a person is taking antidepressant medication;
- whether they are having psychological therapy;
- changes in stress, housing, employment or relationships during treatment;
- whether the treatment plan is completed as recommended;
- the particular TMS protocol selected after clinical assessment.
Improvement may be gradual rather than immediate. Some people notice changes in energy, motivation or sleep before a clear shift in mood. Others may not feel a difference until later in the course. It is reasonable to ask a clinician how and when they will review progress rather than waiting until the final session to discuss concerns.
TMS is not a single outcome measure
It can be tempting to judge treatment only by whether someone reaches remission. But a meaningful response can still matter greatly.
For one person, being able to return to regular work may be an important improvement. For another, it may be having the energy to care for children, reconnect with friends or begin engaging in therapy. For someone with long-standing depression, a reduction in symptom intensity may create enough space to use other supports more effectively.
Equally, it is important not to minimise disappointment if TMS does not help as much as expected. A limited response is useful clinical information, not a personal failure. A treating clinician can review the result, revisit the diagnosis and treatment history, and discuss appropriate next steps.
Side effects and practical considerations
TMS is generally delivered while a person is awake and does not involve surgery. Common side effects include scalp discomfort during treatment and headache afterwards. A seizure is a rare risk, which is one reason a proper medical assessment and safety screening are important.
Before starting, ask how the clinic will assess suitability, monitor side effects and communicate with your existing GP, psychiatrist or mental health team where appropriate. You may also wish to ask about appointment times and how missed sessions are handled.
Finding TMS support in North Carolina
TMS Therapy North Carolina currently lists 72 published clinics across the state. Directory listings include clinics in Raleigh, Greenville, Cary, Huntersville, Charlotte, Fayetteville, Winston-Salem, Wilmington, Durham, Wilson, Concord and Clayton, among other locations.
Insurance arrangements can differ between clinics and treatment plans. Carriers commonly seen in North Carolina include Blue Cross NC, the State Health Plan for Teachers and State Employees, UnitedHealthcare, Aetna, Cigna, NC Medicaid managed care plans, Medicare through Palmetto GBA, and TRICARE East. Coverage decisions, referrals and authorisation requirements should always be confirmed directly with the insurer and clinic.
Getting help in North Carolina
Use the TMS Therapy North Carolina clinic listings to compare local options, read the insurance guide for practical coverage information, and visit the contact page if you need help navigating the directory.
This is educational information, not medical advice.
This page is informational and is not medical advice.