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An accelerated schedule of intermittent theta burst transcranial magnetic stimulation (aiTBS) completed in less than a week is effective for treatment-resistant bipolar depression, the results of a small randomized controlled trial showed.

Investigators found those who received active aiTBS had a substantial decrease in depressive symptoms compared with those who received sham stimulation.

“aiTBS offers a new potential therapy for depressed patients with bipolar disorder who may not respond well to drugs or cannot tolerate their side effects while also significantly shortening the treatment window,” lead researcher Yvette Sheline, MD, director of the Center for Neuromodulation in Depression and Stress at the University of Pennsylvania, Philadelphia, said in a news release.

The study was published online in JAMA Psychiatry.
 

Remission After 5 Days

The Food and Drug Administration (FDA) cleared aiTBS to treat major depressive disorder. However, the treatment is not yet approved for bipolar depression.

The investigators assessed the effectiveness of aiTBS in 12 men and 12 women (mean age, 43 years) with treatment-resistant bipolar disorder. All participants were on mood stabilizers for at least 4 weeks and had Montgomery-Åsberg Depression Rating Scale (MADRS) scores of 20 or greater.

Of the 24 participants, 22 had a diagnosis of bipolar II disorder. Over 5 days, participants were randomized to receive, on a 1:1 basis, 10 sessions per day of imaging-guided active aiTBS or sham aiTBS over the left dorsolateral prefrontal cortex. Each session lasted for 1 hour. All 24 participants completed the assigned treatment and 1-month follow-up.

Active aiTBS was significantly more effective than sham stimulation in relieving depressive symptoms.

In the active treatment group, MADRS scores dropped from a mean of 30.4 at baseline to 10.5 after treatment. In contrast, the sham group experienced a minor change in MADRS scores, which decreased from a mean of 28.0 at baseline to 25.3 posttreatment.

After 5 days of treatment, half of the participants in the active aiTBS group were in remission, compared with none in the sham group.

The results demonstrate the “clinical efficacy and a short time to achieve improvement in this difficult-to-treat condition. The effect was seen even though the participant sample had high depression severity and treatment resistance, both associated with poor response,” the investigators noted.

Dr. Sheline said there were no differences between active and sham stimulation in the “expected adverse events of headache and dizziness. There were no incidences of manic “flip,” and the Young Mania Rating Scale scores were stable in both active and sham groups with no difference between them.”

The researchers noted that the “large effect size” of active aiTBS could be caused by several factors, including optimized stimulation targeting, accelerated time course, and high pulse number (18,000 per day, 90,000 total).

Future studies are needed to examine the relative contributions of the different protocol components to optimize and personalize treatment and evaluate the durability of the antidepressant effects of aiTBS, they added.
 

A Revolutionary Approach

For comment on the study, we reached out to Nolan Williams, MD, associate professor of psychiatry and behavioral sciences at Stanford University and director of the Stanford Brain Stimulation Lab, Stanford, California.

His laboratory pioneered the Stanford Accelerated Intelligent Neuromodulation Therapy (SAINT), which was cleared by the FDA in 2022 for treatment-resistant depression.

Dr. Williams noted that the stimulation and targeting approach used in the current study “mirrors most aspects of the SAINT protocol with very similar results.”

“It’s exciting that we see this kind of pseudo-replication essentially of our work and is supportive of the general view that this approach is revolutionary in its ability to treat people quickly and have such a dramatic clinical effect,” said Dr. Williams.

In March 2024, Dr. Williams and colleagues reported the results of a pilot study of SAINT for bipolar depression, which demonstrated antidepressant efficacy akin to what was observed in the unipolar depression population.

Dr. Williams said, in his experience, the accelerated treatment protocol is convenient and well-liked by patients and, in general, is where the field of psychiatric treatment is headed.

“A general theme that we see in depression and psychiatry is that patients no longer accept long time frames for treatment as being the norm. Whether it be ketamine or this or the upcoming psychedelics, rapid-acting treatments that match the level of acuity will be the norm,” Dr. Williams said.

The study was funded by the Milken Institute and the Baszucki Brain Research Fund. The authors have disclosed no conflicts of interest. Dr. Williams is a named inventor on Stanford-owned intellectual property relating to accelerated TMS pulse pattern sequences and neuroimaging-based TMS targeting. He disclosed ties with Otsuka, NeuraWell, Magnus Medical, and Nooma.

A version of this article first appeared on Medscape.com.

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An accelerated schedule of intermittent theta burst transcranial magnetic stimulation (aiTBS) completed in less than a week is effective for treatment-resistant bipolar depression, the results of a small randomized controlled trial showed.

Investigators found those who received active aiTBS had a substantial decrease in depressive symptoms compared with those who received sham stimulation.

“aiTBS offers a new potential therapy for depressed patients with bipolar disorder who may not respond well to drugs or cannot tolerate their side effects while also significantly shortening the treatment window,” lead researcher Yvette Sheline, MD, director of the Center for Neuromodulation in Depression and Stress at the University of Pennsylvania, Philadelphia, said in a news release.

The study was published online in JAMA Psychiatry.
 

Remission After 5 Days

The Food and Drug Administration (FDA) cleared aiTBS to treat major depressive disorder. However, the treatment is not yet approved for bipolar depression.

The investigators assessed the effectiveness of aiTBS in 12 men and 12 women (mean age, 43 years) with treatment-resistant bipolar disorder. All participants were on mood stabilizers for at least 4 weeks and had Montgomery-Åsberg Depression Rating Scale (MADRS) scores of 20 or greater.

Of the 24 participants, 22 had a diagnosis of bipolar II disorder. Over 5 days, participants were randomized to receive, on a 1:1 basis, 10 sessions per day of imaging-guided active aiTBS or sham aiTBS over the left dorsolateral prefrontal cortex. Each session lasted for 1 hour. All 24 participants completed the assigned treatment and 1-month follow-up.

Active aiTBS was significantly more effective than sham stimulation in relieving depressive symptoms.

In the active treatment group, MADRS scores dropped from a mean of 30.4 at baseline to 10.5 after treatment. In contrast, the sham group experienced a minor change in MADRS scores, which decreased from a mean of 28.0 at baseline to 25.3 posttreatment.

After 5 days of treatment, half of the participants in the active aiTBS group were in remission, compared with none in the sham group.

The results demonstrate the “clinical efficacy and a short time to achieve improvement in this difficult-to-treat condition. The effect was seen even though the participant sample had high depression severity and treatment resistance, both associated with poor response,” the investigators noted.

Dr. Sheline said there were no differences between active and sham stimulation in the “expected adverse events of headache and dizziness. There were no incidences of manic “flip,” and the Young Mania Rating Scale scores were stable in both active and sham groups with no difference between them.”

The researchers noted that the “large effect size” of active aiTBS could be caused by several factors, including optimized stimulation targeting, accelerated time course, and high pulse number (18,000 per day, 90,000 total).

Future studies are needed to examine the relative contributions of the different protocol components to optimize and personalize treatment and evaluate the durability of the antidepressant effects of aiTBS, they added.
 

A Revolutionary Approach

For comment on the study, we reached out to Nolan Williams, MD, associate professor of psychiatry and behavioral sciences at Stanford University and director of the Stanford Brain Stimulation Lab, Stanford, California.

His laboratory pioneered the Stanford Accelerated Intelligent Neuromodulation Therapy (SAINT), which was cleared by the FDA in 2022 for treatment-resistant depression.

Dr. Williams noted that the stimulation and targeting approach used in the current study “mirrors most aspects of the SAINT protocol with very similar results.”

“It’s exciting that we see this kind of pseudo-replication essentially of our work and is supportive of the general view that this approach is revolutionary in its ability to treat people quickly and have such a dramatic clinical effect,” said Dr. Williams.

In March 2024, Dr. Williams and colleagues reported the results of a pilot study of SAINT for bipolar depression, which demonstrated antidepressant efficacy akin to what was observed in the unipolar depression population.

Dr. Williams said, in his experience, the accelerated treatment protocol is convenient and well-liked by patients and, in general, is where the field of psychiatric treatment is headed.

“A general theme that we see in depression and psychiatry is that patients no longer accept long time frames for treatment as being the norm. Whether it be ketamine or this or the upcoming psychedelics, rapid-acting treatments that match the level of acuity will be the norm,” Dr. Williams said.

The study was funded by the Milken Institute and the Baszucki Brain Research Fund. The authors have disclosed no conflicts of interest. Dr. Williams is a named inventor on Stanford-owned intellectual property relating to accelerated TMS pulse pattern sequences and neuroimaging-based TMS targeting. He disclosed ties with Otsuka, NeuraWell, Magnus Medical, and Nooma.

A version of this article first appeared on Medscape.com.

An accelerated schedule of intermittent theta burst transcranial magnetic stimulation (aiTBS) completed in less than a week is effective for treatment-resistant bipolar depression, the results of a small randomized controlled trial showed.

Investigators found those who received active aiTBS had a substantial decrease in depressive symptoms compared with those who received sham stimulation.

“aiTBS offers a new potential therapy for depressed patients with bipolar disorder who may not respond well to drugs or cannot tolerate their side effects while also significantly shortening the treatment window,” lead researcher Yvette Sheline, MD, director of the Center for Neuromodulation in Depression and Stress at the University of Pennsylvania, Philadelphia, said in a news release.

The study was published online in JAMA Psychiatry.
 

Remission After 5 Days

The Food and Drug Administration (FDA) cleared aiTBS to treat major depressive disorder. However, the treatment is not yet approved for bipolar depression.

The investigators assessed the effectiveness of aiTBS in 12 men and 12 women (mean age, 43 years) with treatment-resistant bipolar disorder. All participants were on mood stabilizers for at least 4 weeks and had Montgomery-Åsberg Depression Rating Scale (MADRS) scores of 20 or greater.

Of the 24 participants, 22 had a diagnosis of bipolar II disorder. Over 5 days, participants were randomized to receive, on a 1:1 basis, 10 sessions per day of imaging-guided active aiTBS or sham aiTBS over the left dorsolateral prefrontal cortex. Each session lasted for 1 hour. All 24 participants completed the assigned treatment and 1-month follow-up.

Active aiTBS was significantly more effective than sham stimulation in relieving depressive symptoms.

In the active treatment group, MADRS scores dropped from a mean of 30.4 at baseline to 10.5 after treatment. In contrast, the sham group experienced a minor change in MADRS scores, which decreased from a mean of 28.0 at baseline to 25.3 posttreatment.

After 5 days of treatment, half of the participants in the active aiTBS group were in remission, compared with none in the sham group.

The results demonstrate the “clinical efficacy and a short time to achieve improvement in this difficult-to-treat condition. The effect was seen even though the participant sample had high depression severity and treatment resistance, both associated with poor response,” the investigators noted.

Dr. Sheline said there were no differences between active and sham stimulation in the “expected adverse events of headache and dizziness. There were no incidences of manic “flip,” and the Young Mania Rating Scale scores were stable in both active and sham groups with no difference between them.”

The researchers noted that the “large effect size” of active aiTBS could be caused by several factors, including optimized stimulation targeting, accelerated time course, and high pulse number (18,000 per day, 90,000 total).

Future studies are needed to examine the relative contributions of the different protocol components to optimize and personalize treatment and evaluate the durability of the antidepressant effects of aiTBS, they added.
 

A Revolutionary Approach

For comment on the study, we reached out to Nolan Williams, MD, associate professor of psychiatry and behavioral sciences at Stanford University and director of the Stanford Brain Stimulation Lab, Stanford, California.

His laboratory pioneered the Stanford Accelerated Intelligent Neuromodulation Therapy (SAINT), which was cleared by the FDA in 2022 for treatment-resistant depression.

Dr. Williams noted that the stimulation and targeting approach used in the current study “mirrors most aspects of the SAINT protocol with very similar results.”

“It’s exciting that we see this kind of pseudo-replication essentially of our work and is supportive of the general view that this approach is revolutionary in its ability to treat people quickly and have such a dramatic clinical effect,” said Dr. Williams.

In March 2024, Dr. Williams and colleagues reported the results of a pilot study of SAINT for bipolar depression, which demonstrated antidepressant efficacy akin to what was observed in the unipolar depression population.

Dr. Williams said, in his experience, the accelerated treatment protocol is convenient and well-liked by patients and, in general, is where the field of psychiatric treatment is headed.

“A general theme that we see in depression and psychiatry is that patients no longer accept long time frames for treatment as being the norm. Whether it be ketamine or this or the upcoming psychedelics, rapid-acting treatments that match the level of acuity will be the norm,” Dr. Williams said.

The study was funded by the Milken Institute and the Baszucki Brain Research Fund. The authors have disclosed no conflicts of interest. Dr. Williams is a named inventor on Stanford-owned intellectual property relating to accelerated TMS pulse pattern sequences and neuroimaging-based TMS targeting. He disclosed ties with Otsuka, NeuraWell, Magnus Medical, and Nooma.

A version of this article first appeared on Medscape.com.

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