TMS Protocols Explained: Classic, Theta‑Burst, and Accelerated
Transcranial Magnetic Stimulation (TMS) is not a single, rigid treatment. Over time, several different protocols have been developed that change how long a session lasts, how often you come in, and how quickly you complete a course. All of them use magnetic pulses to stimulate brain circuits involved in mood and thinking; what changes is the pattern and schedule.
In this post, we’ll look at three main categories:
- Classic once‑daily high‑frequency TMS
- Once‑daily theta‑burst TMS
- Accelerated protocols, including SAINT‑style and BrainsWay SWIFT™
A separate blog will focus on how to choose between them and what we know about success rates and rapid effects on symptoms, including suicidality.
1. The classical FDA‑approved TMS protocol
The original FDA‑cleared protocol for depression used high‑frequency stimulation delivered once a day, five days per week, for several weeks. In simple terms:
- You come to the clinic once a day on weekdays.
- Each session lasts about 20 minutes
- A full course typically extends over 6-8 weeks.
This “classical” schedule is still widely used. It is:
- The best‑studied protocol, with the longest track record.
- The one most insurance policies are built around.
- A good fit if you can commit to daily visits and are comfortable with gradual improvement over time.
Think of it as the “original TMS model”: slow, steady and well validated.
2. Once‑daily theta‑burst TMS (same timeline, different pattern)
As TMS evolved, researchers developed theta‑burst stimulation (TBS).
- Delivers pulses in very brief bursts (clusters of pulses).
- Repeats those bursts in short blocks that follow a natural “theta‑range” brain rhythm linked to learning and plasticity.
Clinically, this allows us to:
- Deliver a comparable biologic dose in a much shorter session.
- Keep the overall schedule similar (for example, one session per day over several weeks).
So, a once‑daily theta‑burst protocol can be seen as:
- Same general course length as the classical protocol.
- Same idea of a daily rhythm and gradual improvement.
- Shorter individual visits, because the patterned bursts are more time‑efficient.
For many patients, this is simply a modernized version of standard TMS: you still come once a day, but you spend less time in the chair.
3. Accelerated protocols: SAINT‑style and BrainsWay SWIFT™
Accelerated protocols change not just the pattern, but the overall pace of treatment. Instead of one session per day, they give multiple shorter sessions per day over a small number of days. Most use theta‑burst as the underlying pattern.
SAINT‑style accelerated protocols
SAINT‑style (or Stanford‑type neuromodulation) protocols are examples of highly accelerated TMS. In general terms, they:
- Use theta‑burst stimulation aimed at key mood‑regulating circuits.
- Deliver several short sessions per day (with rest breaks) for a limited number of days.
- Compress what would normally be weeks of treatment into a very short window.
The goal is rapid symptom change, especially in patients with severe or urgent depression. The trade‑offs are longer treatment days, more intensive monitoring, and the fact that these protocols are newer, with less long‑term, real‑world data than the classical model.
BrainsWay SWIFT™ accelerated Deep TMS
SWIFT™ is BrainsWay’s FDA‑cleared accelerated Deep TMS protocol for major depressive disorder. In broad, patient‑friendly terms:
- It uses theta‑burst Deep TMS sessions that are brief but repeated several times per day.
- The acute phase of treatment is completed in about six treatment days and two weeks , rather than four or more weeks of daily sessions.
- A short maintenance phase follows, with fewer sessions, to stabilize gains.
SWIFT is designed for patients who want a time‑limited, evidence‑based accelerated option: fewer total days in the clinic, with an intensive schedule during that short window.
What comes next?
Each of these approaches—classical high‑frequency, once‑daily theta‑burst, and accelerated protocols like SAINT‑style and SWIFT—has its own strengths, limitations, and evidence base. The “best” protocol is not the same for every patient; it depends on safety, diagnosis, symptom severity, urgency, life logistics, and personal preferences.
In our next blog, we will:
- Review what current studies show about success rates for regular vs accelerated TMS.
- Discuss what we know so far about rapid effects on suicidal thoughts and crisis symptoms.
- Explain, step by step, how we help you choose the protocol that fits your clinical needs and real‑life constraints.
If you are considering TMS and want to understand which approach might suit you best, we invite you to follow our upcoming posts or schedule a consultation to discuss your options in detail.