Everything you need to know about TMS Success Rates in 2026: What the Data Actually Shows — how it works, what it costs, and how to find a provider who actually knows what they're doing.
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Published response rates for TMS in treatment-resistant depression range from roughly 30% in rigorous sham-controlled trials to around 50-60% in real-world clinical practice, with remission rates of roughly 15-35% depending on the study. Response rates differ because trials and clinics differ in patient populations, protocols, and how outcomes are measured.
That is worth putting in context. These are people who tried medications and did not get enough relief, and for many of them a meaningful chance of improvement is important. TMS does not work for everyone.
This guide breaks down what the data actually shows about TMS success rates, what predicts who responds, and how long results last.
What You’ll Learn
- What response and remission mean in TMS research
- Success rates across different conditions (depression, OCD, anxiety)
- Factors that predict better or worse outcomes
- How long TMS results typically last
- What the success rates mean in practical terms
What Response and Remission Mean
Researchers use standardized depression scales (PHQ-9, HAM-D) to measure outcomes:
- Response: At least 50% reduction in depression scores. You feel meaningfully better.
- Remission: Scores drop below the clinical threshold. On the PHQ-9, that is generally a score under 5.
The distinction matters. Response means improvement. Remission means you are no longer clinically depressed.
Success Rates by Condition
TMS has been studied across several conditions. Reported outcomes vary widely by study design, so the figures below come from specific studies rather than a single pooled rate.
| Condition | Example result | FDA status |
|---|---|---|
| Major depression (treatment-resistant) | Real-world study of 307 patients: about 58% response, 37% remission (Carpenter et al., 2012). In the sham-controlled OPT-TMS trial: remission about 14% vs. 5% sham (George et al., 2010). | FDA-cleared (2008) |
| OCD (BrainsWay Deep TMS) | About 38% responders vs. 11% with sham in a 100-patient trial (Carmi et al., American Journal of Psychiatry, 2019) | FDA-cleared (2018) |
| Smoking cessation (BrainsWay Deep TMS) | Four-week continuous quit rate 19.4% vs. 8.7% sham in the primary analysis (Zangen et al., World Psychiatry, 2021) | FDA-cleared (2020) |
| Anxious depression | Cleared based on anxiety symptom outcomes in depression | FDA-cleared (2021, BrainsWay) |
| PTSD | Preliminary, inconsistent results | Not FDA-cleared |
| Generalized anxiety disorder | Early research only | Not FDA-cleared |
Depression has the most data. OCD and smoking cessation each rest on a single pivotal trial. PTSD and generalized anxiety remain investigational. Our TMS for anxiety covers the regulatory status for anxiety.
What Predicts Success?
Researchers have looked at what predicts response. Findings are not consistent, and no factor guarantees an outcome. Some studies have associated these with better outcomes:
- Fewer failed medications. Some studies find lower response in people with greater treatment resistance.
- Shorter current episode. Some analyses link longer episodes to lower response.
- Completing the full course. TMS is designed to be delivered as a full course, and stopping early cuts the total dose. Improvement often starts to appear in weeks 3-4.
- Brain connectivity patterns. Researchers are studying whether neuroimaging can identify likely responders before treatment, but this is not yet routine clinical practice. See our AI-guided TMS guide for details.
How Long Do Results Last?
In a 12-month follow-up study of 257 patients (Dunner et al., Journal of Clinical Psychiatry, 2014), about 62% of the patients who had responded to acute TMS still met response criteria a year later, and about 36% received additional TMS during that time (abstract).
This is not a one-and-done cure for everyone. For many people it improves symptoms long enough to rebuild other parts of life, such as therapy, exercise, and relationships. Depression is a recurrent condition, and relapse after any successful treatment is possible.
Is TMS Worth Trying?
TMS is not a miracle treatment and does not work for everyone, but it is an FDA-cleared option with a generally mild side effect profile for people whose depression has not responded to medication. The risk of seizure is on the order of 1 in 30,000 sessions, and TMS is not associated with weight gain, sexual dysfunction, or sedation.
If you are considering TMS, the best next step is a consultation with a clinician experienced in TMS who can give you an honest read on whether you are a candidate.
Key Takeaways
- Reported response rates range from about 30% in sham-controlled trials to about 50-60% in real-world studies; remission rates are roughly 15-35%.
- Response and remission are different. Response is 50% improvement. Remission means you are no longer clinically depressed.
- Better outcomes are tied to fewer failed medications, shorter current episode, and completing the full course.
- In one 12-month follow-up study, about 62% of acute responders still met response criteria a year later.
- TMS side effects are generally mild and temporary, and TMS is not associated with weight gain or sexual dysfunction.
- TMS is designed to be delivered as a full course, so finishing it matters. The first weeks are often the hardest.
Frequently Asked Questions
What percentage of people does TMS work for?
Reported response rates range from roughly 30% in sham-controlled trials to about 50-60% in real-world studies, with remission in roughly 15-35% depending on the study. Response means at least a 50% improvement on depression scales; remission means scores below the clinical threshold.
How long does TMS keep working?
In a 12-month follow-up study of 257 patients (Dunner et al., 2014), about 62% of acute responders still met response criteria a year later, and about 36% of patients received additional TMS during that time. Relapse is possible.
Does TMS work better than medication?
The two are used in different populations, so direct comparison is difficult. TMS is for people whose depression has not responded to medication. TMS also has a different side effect profile from antidepressants.
What reduces the chance of TMS working?
Researchers have studied factors such as greater treatment resistance and longer episodes, but findings are inconsistent. TMS is designed to be delivered as a full course, and stopping early reduces the total dose.
Can TMS fail if I already failed medications?
TMS can still help some people who have tried multiple medications, though some studies find lower response with greater treatment resistance. If standard TMS has not worked, ask your clinician about protocol changes or other options.
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