Treatment-resistant depression (TRD) affects a significant portion of people diagnosed with major depressive disorder, leaving many exhausted by trial-and-error medication changes that take weeks to show results, if they work at all. Accelerated Theta Burst Stimulation (aTBS) offers a different approach: a faster-acting, non-medication form of TMS therapy that compresses weeks of treatment into days.
This article covers what aTBS actually is, how it works in the brain, what the research shows, and what treatment looks like day to day.
Key Takeaways
- aTBS delivers a full TMS course in about one to two weeks instead of four to six
- Individual sessions take as little as 3 minutes, versus 20–40 minutes for standard TMS
- Clinical trials report remission rates near 78–80% in treatment-resistant patients
- Patients avoid systemic side effects like weight gain or sexual dysfunction common with many antidepressants
What is Accelerated Theta Burst Stimulation (aTBS)?
Understanding the Evolution from Standard TMS
Standard repetitive TMS (rTMS) has been used for years to treat depression that doesn't respond to medication. It works by delivering magnetic pulses to brain regions tied to mood regulation. Patients typically visit a clinic daily for 20-40 minute sessions, five days a week, for four to six weeks.
It works. But it's a serious time commitment, one that many patients with jobs, families, or transportation barriers struggle to maintain.
The Innovation of Theta Burst Stimulation (iTBS)
Intermittent Theta Burst Stimulation shortened each session dramatically. Instead of spreading pulses evenly across a long session, iTBS delivers them in short, high-frequency bursts that mimic the brain's natural theta wave rhythms, the same rhythms involved in learning and memory formation.
The result: a session that once took 37.5 minutes for standard 10 Hz rTMS can be delivered in about 3 minutes with iTBS, according to the randomized THREE-D trial comparing theta burst versus high-frequency TMS for depression. Effectiveness holds steady or even improves.
The "Accelerated" Protocol: Compressing Weeks Into Days
Here's where "accelerated" comes in. Instead of one session per day, aTBS delivers multiple iTBS sessions in a single day, spaced with short breaks between them.
At TMS Center Centennial, this is offered as Swift Deep TMS™, which typically involves:
- 10 treatments per day for six days during the first week
- Two treatments per day for two additional weeks
- A full course completed in roughly two weeks, rather than a month or more
Instead of one session a day for six weeks, your brain receives a concentrated series of stimulation doses over a much shorter window.
How aTBS Rewires the Brain for Depression Relief
Depression is a brain circuit problem. Certain regions involved in executive function and emotional regulation become underactive. Neuroplasticity—the brain's ability to form new connections and reorganize itself—is what makes lasting change possible.
aTBS targets the left dorsolateral prefrontal cortex (DLPFC), the brain's executive control center. This region drives mood regulation, decision-making, and emotional processing. In depression, DLPFC activity is frequently reduced.
The theory behind aTBS is straightforward:
- Concentrated stimulation delivers many bursts of magnetic pulses in a short window
- Rapid neuroplastic change occurs as neurons in the DLPFC strengthen their connections
- Underactive circuits reactivate faster than they would with once-daily stimulation spread over weeks
Think of it like the difference between watering a plant once a day versus giving it several concentrated waterings in a single afternoon. The compressed schedule accelerates the brain's own repair process instead of stretching the same work over weeks.
The Evidence: Is Accelerated TMS Effective for Treatment-Resistant Depression?
Landmark Clinical Trials and Promising Results
Stanford's SAINT protocol (later published as SNT) is the landmark trial most clinicians point to. It delivered iTBS 10 times per day for five consecutive days, with individualized brain-imaging guidance to target each patient's DLPFC.
The Stanford SAINT/SNT trial for treatment-resistant depression reported remission rates approaching 80% in a treatment-resistant population.
That research helped open the door for broader clinical use. In 2025, BrainsWay received FDA clearance for its accelerated Deep TMS protocol, with an acute phase of six treatment days and up to five sessions daily, each under 10 minutes.
TMS Center Centennial's Swift Deep TMS™ protocol is built on that BrainsWay accelerated model. In practice, eligible patients often reach remission faster on the condensed schedule than on a standard multi-week course, which matches the speed advantage seen in the trial data.
Key Advantages Over Traditional Depression Treatments
Compared with standard TMS:
- Compresses weeks of treatment into a span of days
- Concentrates visits into a shorter calendar window
- Delivers similar or stronger response rates than conventional scheduling
Compared with antidepressant medications:
- Stays non-systemic, so it does not circulate through the bloodstream
- Avoids common drug side effects such as weight gain, emotional blunting, or sexual dysfunction
- Allows most patients to stay on current prescriptions during treatment, with any changes directed by their prescribing clinician
For someone in a severe depressive episode, a six-to-eight-week medication trial can leave symptoms unchecked for too long. Accelerated TBS is built for that gap: faster onset when waiting is not a safe option.
What to Expect During an Accelerated TMS Treatment Course
Before Treatment Begins
Every patient starts with a comprehensive psychiatric evaluation to confirm TMS is appropriate and that an accelerated schedule fits their needs. This is followed by a brain mapping session, where a certified technician uses a fitted cap to locate the precise treatment target and set your motor threshold—the minimum intensity needed for an effective dose.
You can usually stay on current prescribed medications during TMS; any changes are directed by your prescribing clinician, often after the course ends.
A Typical Treatment Day
During an accelerated week, you receive multiple brief sessions in a single day—often theta-burst runs of about three minutes each—spaced with rest periods between treatments. Each session is straightforward:
- Sit upright in a comfortable chair, fully awake
- No anesthesia or sedation
- Hear a clicking sound and feel light tapping on the scalp
- Read, watch something, or rest during the session
- Drive yourself and return to normal activities right after
Safety and Side Effects
aTBS is well tolerated. The most commonly reported effects are mild and temporary:
- Scalp discomfort at the treatment site
- Mild headache, usually resolving within the same day
Serious risks such as seizure are rare—well under 1% per treatment course in published safety reviews, with theta-burst estimates typically lower still.
Finding a Faster Path to Relief at TMS Center Centennial
Is an Advanced TMS Protocol Right for You?
You may be a candidate for Swift Deep TMS™ if you:
- Have a diagnosis of Major Depressive Disorder
- Have not found lasting relief after two or more antidepressant medications
- Want a non-invasive, non-medication treatment option
Beyond depression, advanced TMS protocols at the center also support patients dealing with OCD and anxiety, though the accelerated Swift schedule is currently focused specifically on depression treatment.
Our Commitment to Personalized, Evidence-Based Care
TMS Center Centennial delivers Swift Deep TMS™ using FDA-approved BrainsWay Deep TMS™ technology, designed to stimulate broader and deeper brain structures than earlier TMS systems. This isn't a standalone fix, though. The clinic pairs advanced TMS with NeurOptimal® neurofeedback and collaborative counseling, addressing the biological, psychological, and relational sides of recovery together.
Rodney Placzek, the center's Clinical Director, brings a personal understanding to this work. He experienced TMS therapy firsthand during his own recovery, then became a Certified TMS Trainer and Technician and co-founded the clinic in 2017.
If depression treatment has left you stuck, a free consultation can clarify whether an advanced TMS plan fits. Call TMS Center Centennial at (720) 642-6555 to talk through next steps.
Frequently Asked Questions
What does accelerated theta burst stimulation do?
It uses rapid magnetic pulses delivered in short bursts to stimulate and reactivate underactive mood-regulating areas of the brain, particularly the left dorsolateral prefrontal cortex (DLPFC). This promotes neuroplasticity, helping the brain rebuild healthier circuits faster than standard schedules.
How effective is accelerated theta burst stimulation?
Recent clinical trials, including Stanford's SAINT/SNT protocol, have shown remission rates approaching 80% in treatment-resistant patients. At TMS Center Centennial, about 69% of patients achieve full remission, and 89% see significant symptom reduction.
Is accelerated theta burst stimulation safe?
Yes, it's considered very safe and well-tolerated. Seizure risk is extremely rare, and the most common side effects are mild, temporary headaches or scalp discomfort.
How is aTBS different from standard TMS?
The core magnetic stimulation technology is the same. aTBS delivers treatment in much faster sessions, multiple times a day, compressing a four-to-six-week course into about one to two weeks.
How long does it take to see results from aTBS?
Results vary by individual, but the accelerated schedule means many patients notice improvement within the first week or two of treatment, much faster than typical medication timelines or standard TMS.
Is accelerated TMS covered by insurance?
Standard TMS is widely covered by insurance for treatment-resistant depression. Coverage for accelerated protocols is still evolving by payer, so it's best to contact the clinic directly to review your specific plan and benefits.
