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SchizophreniaPhase 1/2ATPNCT05567848

Accelerated TMS in Psychosis

A Phase 1/2 study testing repetitive Transcranial Magnetic Stimulation (rTMS) in people with Schizophrenia and Schizoaffective Disorder, run by Beth Israel Deaconess Medical Center at 1 site in United States.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

This study is to determine the tolerability and efficacy of an accelerated schedule of Transcranial Magnetic Stimulation for treating symptoms of psychotic disorders such as schizophrenia. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
repetitive Transcranial Magnetic Stimulation (rTMS)
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited States
Study dates
29 Nov 2022to Jan 2027
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age between 18-65 years
  • Diagnosis of a psychotic disorder (i.e. schizophrenia or schizoaffective disorder) or have been identified as being at clinical high risk for developing a psychotic disorder.
  • Must be able to read, speak and understand English
  • Must be judged by study staff to be capable of completing the study procedures
  • Participants will be in stable outpatient treatment with no recent (within the past 30 days) hospitalizations or changes in their medication regimens.

Who cannot join

  • Diagnostic and Statistical Manual 5 diagnosis of moderate substance use disorder within the past month
  • Medications will be reviewed by the PI and a decision about inclusion will be made based on the participant's past medical history, drug dose, history of recent medication changes or duration of treatment, and combination with other central nervous system active drugs. Current published TMS guidelines do not preclude specific medications in the setting of TMS(Rossi et al., 2021)
  • Conditions that might result in increased risks of side effects or complications from rTMS or MRI, including:
  • Intracranial pathology from a known genetic disorder (e.g., Neurofibromatosis 1, tuberous sclerosis) or from acquired neurologic disease (e.g. stroke, tumor), cerebral palsy, history of severe head injury, or significant dysmorphology;
  • History of fainting spells of unknown or undetermined etiology that might constitute seizures
  • History of multiple seizures or diagnosis of epilepsy
Show all 18Show fewer
  • Any progressive (e.g., neurodegenerative) neurological disorder such as multiple sclerosis or Parkinson's disease
  • Chronic (particularly) uncontrolled medical conditions that may cause a medical emergency in case of a provoked seizure (cardiac malformation, cardiac dysrhythmia, asthma, etc.)
  • Metal implants (excluding dental fillings) unless cleared by the responsible covering MD (i.e. MRI compatible joint replacement)
  • Pacemaker
  • Implanted medication pump
  • Vagal nerve stimulator
  • Deep brain stimulator or transcutaneous electric nerve stimulation unit
  • Ventriculo-peritoneal shunt
  • Signs of increased intracranial pressure
  • Intracranial lesion
  • History of head injury resulting in prolonged loss of consciousness (>15minutes) or neurological sequelae
  • Pregnancy: All participants capable of becoming pregnant will be required to have a pregnancy test; any participant who is pregnant will not be enrolled in the study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Beth Israel Deaconess Medical Center

    Boston, Massachusetts, 02215

Other trials in United States

About this study

Official title: Accelerated Transcranial Magnetic Stimulation in Psychotic Disorders

This study is to determine the tolerability and efficacy of an accelerated schedule of Transcranial Magnetic Stimulation for treating symptoms of psychotic disorders such as schizophrenia.

Read the detailed description

The aim of this protocol is to test the hypothesis that 'accelerated' Transcranial Magnetic Stimulation (TMS) is safe and efficacious in the treatment of psychotic disorders. TMS is a neuromodulation technique that utilizes magnets to alter neuronal activity non-invasively. TMS has received FDA approval as a therapeutic intervention for multiple psychiatric disorders. Historically, these FDA approved treatments have consisted of daily sessions spread out over multiple weeks. "Accelerated" TMS protocols deliver multiple TMS sessions daily over a shorter time frame (e.g., one week). Evidence from dozens of studies across multiple disorders suggests that these protocols are safe and effective.

In this protocol we will test the hypothesis that a form of TMS previously used to treat symptoms of schizophrenia is safe and effective when delivered on an accelerated schedule. Participants in this trial will receive neuronavigated intermittent theta burst TMS targeted to personalized network targets on an accelerated schedule. Our primary outcomes will be to determine if delivering TMS on this schedule is as safe and easily tolerated as it is in other disorders.

Additional outcomes measured will be to test the impact of accelerated TMS on multiple clinical and cognitive measures as well as neuroimaging markers of symptom response.

Being tested
repetitive Transcranial Magnetic Stimulation (rTMS)
Medical subject headings
Schizophrenia, Psychotic Disorders, Schizotypal Personality Disorder

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • repetitive Transcranial Magnetic Stimulation (rTMS)Device

    rTMS is a technique of TMS that allows the selective external manipulation of neural activity in a non-invasive manner. During TMS, a rapidly changing current is passed through an insulated coil placed against the scalp. This generates a temporary magnetic field that in turn induces electrical current in neurons and allows the modulation of neural circuitry. The combination of TMS with functional MRI allows the selective targeting and modulation of brain networks. The repeated application of rTMS can cause long term changes in behavior and task performance that is reflected in altered brain network connectivity.

    The pattern of rTMS will consist of intermittent Theta Burst Stimulation (iTBS) pattern consisting of 2 s trains of 3 pulses at 50 Hz, repeated at 5 Hz, every 10s for a total of 600 pulses per session. Sessions will be separated by an interval of 50 minutes (up to a total of 8 per day).

Study groups in NCT05567848
Study groupRoleWhat they receive
repetitive Transcranial Magnetic Stimulation (rTMS)Experimentalrepetitive Transcranial Magnetic Stimulation (rTMS) in a iTBS pattern to the cerebellum at 100% of resting motor threshold
Receives: Device: repetitive Transcranial Magnetic Stimulation (rTMS)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Tolerability of accelerated TMS

    Participants will be monitored for routinely surveyed on their experience of side effects of TMS. These include both common effects such as headache or neck pain as well as rarer side effects such as dizziness.

    Measured: 5 days of multiple session of TMS per day

Secondary outcomes (4)
  1. Change in cerebellar-cerebral resting-state functional connectivity

    Participants will receive a MRI before TMS and after TMS. Resting-state functional MRI data will be collected. Symptom change will be correlated with resting-state functional MRI connectivity change between pre- and post-TMS MRI scans

    Measured: Before treatment (Baseline) and 1 week and 3 weeks post treatment

  2. Change in severity of negative symptoms of schizophrenia

    The Positive and Negative Symptoms Scale (PANSS) is a 30-item rating instrument evaluating the presence/absence and severity of positive, negative and general psychopathology of schizophrenia. The scale was developed from the Brief Psychiatric Rating Scale (BPRS) and the Psychopathology Rating Scale. All 30 items are rated on a 7-point scale (1=absent; 7=extreme).

    Measured: Before treatment (Baseline) and 1 week and 3 weeks and 24 weeks post treatment

  3. Change in auditory hallucination severity

    The Psychotic Symptom Rating Scale, AH subscale (PSYRATS-AH) is an interviewer rated scale to assess auditory hallucination (AH) severity and phenomenology. It measures AH frequency, duration, location, loudness, beliefs regarding origin of voices, amount and degree of negative content of voices, amount and intensity of distress associated with voices, disruption to life caused by voices, and controllability of voices.

    Measured: Before treatment (Baseline) and 1 week and 3 weeks and 24 weeks post treatment

  4. Change in information processing speed

    The Measurement And Treatment Research to Improve Cognition in Schizophrenia Consensus Cognitive Battery (MCCB) is used to provide a relatively brief evaluation of key cognitive domains relevant to schizophrenia and related disorders. It is used as a measure of cognitive change in repeated testing applications.

    Measured: Before treatment (Baseline) and 1 week and 3 weeks and 24 weeks post treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Oct 2022
  2. Study start29 Nov 2022
  3. Primary completionJan 2027 (estimated)
  4. Study completionJan 2027 (estimated)

Why it stopped: Paused for data analysis

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05567848
Sponsor's protocol ID
2022P000689
Acronym
ATP
Status last verified
Apr 2026
First submitted
1 Oct 2022
Last updated
22 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing repetitive Transcranial Magnetic Stimulation (rTMS) in people with Schizophrenia and Schizoaffective Disorder, run by Beth Israel Deaconess Medical Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: paused, as of the sponsor's last update on 22 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Tolerability of accelerated TMS (time frame: 5 days of multiple session of TMS per day). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Apr 2026.

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