Magnetic pulses to the brain could lift bipolar depression

NCT ID NCT06370988

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether a non-invasive brain stimulation technique called intermittent theta-burst stimulation (iTBS) can reduce depression symptoms in people with treatment-resistant bipolar disorder. About 124 participants will receive either real or sham (fake) stimulation daily for 30 days, then be followed for 6 weeks. Researchers will measure changes in depression and mania symptoms to see if the treatment is safe and effective.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
intermittent theta-burst stimulation (iTBS) using a magnetic coil device
What this could lead to
If it works, this could offer a new, non-drug option to reduce depression symptoms in people with bipolar disorder who haven't responded to standard treatments.
What could go wrong
This is a mid-sized trial testing a device, not a drug, and the effect may be small or no better than placebo. The study is still recruiting, so results are uncertain.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 124 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2024

Expected to finish

May 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria The participant must meet all of the inclusion criteria to eligible for this clinical trial: 1. Must be deemed to have capacity to provide informed consent; 2. Must be an outpatient 3. Have a DSM 5 diagnosis of bipolar disorder (type I or II), current episode depressed confirmed by Mini-International Neuropsychiatric Interview version 7.0.2 (MINI); 4. Age 18-65; 5. failure to achieve a clinical response to ≥1 adequate treatment trial for bipolar depression based on the Antidepressant Treatment History Form - Short Form (ATHF-SF) OR unable to tolerate at least 2 separate inadequate treatment trials for bipolar depression;43 6. moderately severe depression with a score ≥ 15 on the PHQ-9;44 7. not currently experiencing a mixed or manic episode (YMRS ≤10); 8. no increase or initiation of psychotropic medication with intention of treating depressive symptoms in the 4 weeks prior to screening. This excludes targeted treatment of insomnia with trazodone, melatonin, low-dose doxepin \[3-6mg\], low-dose benzodiazepines \[≤2mg lorazepam daily equivalent\], non-benzodiazepine benzodiazepine receptor agonists, or orexin antagonists; 9. able to adhere to the treatment schedule; 10. pass the TMS adult safety screening questionnaire.45 Exclusion Criteria An individual who meets any of the following criteria will be excluded from participation in this clinical trial: 1. have a history of MINI diagnosis of a substance use disorder (other than nicotine and/or caffeine) within the last 3 months; 2. have a concomitant major unstable medical illness; 3. have active suicidal intent (assessed during HRSD-17 Item 3 and SSRS as imminent intent to act on specific plan, confirmed by psychiatric staff); 4. are pregnant or intend to get pregnant during the study; 5. have a lifetime MINI diagnosis of schizophrenia or schizoaffective disorder; 6. have psychotic symptoms within the current episode; 7. have a MINI anxiety disorder, trauma-related disorder, obsessive compulsive disorder, or personality disorder assessed by a study investigator to be primary and/or causing greater impairment than BD-DE; 8. failure of an adequate acute course of ECT as defined by ATHF-SF during the current episode; 9. have received any rTMS before due to potential to compromise blinding of treatment allocation; 10. have any clinically significant neurological disorder (e.g., recent major cerebrovascular accident), or any history of seizure except those therapeutically induced by ECT or with clear precipitant (e.g., febrile seizure of childhood, alcohol withdrawal, etc.); 11. have any intracranial implant (e.g., aneurysm clips, shunts, stimulators,) or any other metal object within or near the head, excluding the mouth, that cannot be safely removed; 12. are participating in psychotherapy for less than 3 months. Patients will be permitted if they have been in stable treatment for at least 3 months prior to study entry, with no anticipated change in the frequency of therapeutic sessions, or focus of therapeutic sessions over the duration of the study; 13. are currently taking lorazepam \>2 mg daily (or equivalent) due to the potential to limit rTMS efficacy; 14. are currently taking any dose of an anticonvulsant due to the potential to limit rTMS efficacy. If anticonvulsants have been discontinued prior to screening, at least 5 half-lives have elapsed until screening to allow sufficient drug clearance; 15. have a non-correctable clinically significant sensory impairment (i.e., cannot hear well enough to cooperate with interview).

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Centre for Addiction and Mental Health

    RECRUITING

    Toronto, Ontario, M6J 1H4, Canada

  • University Health Network

    RECRUITING

    Toronto, Ontario, M5T 2S8, Canada

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