What If My First Round of TMS Didn't Work? Retreatment, Protocol Adjustments, and Honest Next Steps

Quick Answer: A first course of TMS that didn't deliver the relief you hoped for isn't the end of the road. The right next step depends on which situation you're in — TMS that worked and then faded, or TMS that never quite landed. Options range from a repeat course or maintenance sessions to changing the protocol itself, and for people who responded the first time, a repeat course works again in the large majority of cases. This post covers both paths honestly.
Finishing a full course of TMS and not feeling the shift you were hoping for is discouraging, and it can feel like you've used up your last option. You haven't. "It didn't work" actually covers a few different outcomes, and each one points to a different, concrete next step. Knowing which one you're in is the first move.
First, which kind of "didn't work" is this?
Before talking about what to change, it helps to name what happened. Clinicians usually sort first-course outcomes into three groups:
- You responded, then slipped. Symptoms improved during or after treatment, then crept back weeks or months later.
- You partially responded. You felt some improvement, but not enough to call it a real change.
- You didn't respond. You completed the sessions and noticed little or no difference.
Two terms come up a lot here. Response means a meaningful drop in symptoms - you feel noticeably better. Remission means your symptoms have largely resolved. A first course can produce a response without full remission, and that distinction shapes what comes next.
If TMS worked and then faded: repeat courses and maintenance
This is the most common version of "it didn't last," and it's also the most encouraging. Depression is a relapsing condition, and a fading response is not the same as TMS failing.
For people who responded the first time and later relapsed, a repeat course tends to work again. Across published data, roughly 80–90% of patients who return for retreatment respond a second time, and one large multi-site study found about 84% of patients who needed another course or maintenance sessions improved again. Responding earlier and more strongly in your first course is associated with longer-lasting, more repeatable results.
What is maintenance TMS? Instead of a full repeat course, some patients move to maintenance TMS — a lighter, individualized schedule of sessions (anywhere from weekly to monthly) designed to hold a good result in place. Maintenance is decided case by case, is billed per session (currently $75), and isn't covered by insurance.
You can read more on our maintenance and retreatment blog and our pricing guide.
If the first course didn't land: adjusting the protocol
A second attempt shouldn't be a carbon copy of the first. If you saw little benefit, the useful question is what to change, and there's usually more to adjust than people realize.
- Re-mapping and coil positioning. Where the coil sits matters. A careful re-check of your treatment target and motor threshold can meaningfully change the dose your brain actually receives.
- Protocol and dose. Session count, pulse dose, and intensity can be revised. Some patients switch to or add iTBS (intermittent theta burst stimulation), a shorter session format, or an accelerated schedule that condenses treatment into a much smaller window.
- A longer or re-targeted course. Extending treatment or adjusting the target region is sometimes appropriate.
None of this guarantees a different outcome, but it means a second round can be genuinely different from the first rather than a repeat of something that didn't help.

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Ruling out what else might be in the way
Sometimes a disappointing result has less to do with TMS and more to do with what's around it. Before repeating or switching treatment, it's worth reviewing:
- The diagnosis and contributing factors - sleep, thyroid issues, substance use, and major life stressors can all blunt a response.
- Therapy alongside TMS - pairing treatment with counseling can support and extend gains.
This step is often skipped, and it's one of the highest-value things a good clinician does before a second attempt.
When TMS may not be the right tool - and what else exists
Honesty matters here: TMS doesn't work for everyone, even with adjustments. If a well-run, well-targeted course truly hasn't helped, a good clinic will say so rather than sell you a third round. Other options — a medication review, Spravato or ketamine-based treatment, or, for severe cases, other interventional approaches — may fit better. A second opinion is reasonable and worth asking for.
What the numbers realistically say
A few honest expectations to hold:
- Among people who respond, that response tends to soften over time. One review found sustained response in about two-thirds of responders at three months, around half at six months, and just under half at twelve. That's exactly why maintenance and retreatment exist.
- Retreatment success is high for people who responded before.
- A first-course non-response is a harder starting point, and no reputable clinic can promise a turnaround - but protocol adjustments give a real, evidence-based reason to try again.
Does a failed first round mean TMS will never work for me?
No. A repeat course works for the large majority of people who responded before, and for first-time non-responders, protocol changes can produce a different result. It does mean the next attempt should be reviewed and adjusted, not simply repeated.
How soon can I do a second course of TMS?
It depends on your situation and your clinician's assessment. Some people move to maintenance sessions to hold a result; others wait until symptoms return before starting another full course.
Is maintenance TMS the same as a second course?
No. Maintenance is a lighter, ongoing schedule meant to protect an existing good result, while a repeat course is a fresh full treatment for symptoms that have returned.
Will insurance cover a repeat course?
Coverage varies by plan and situation. Repeat standard courses are sometimes covered when criteria are met; maintenance sessions generally are not. We check your benefits before treatment so you have an estimate up front.

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