This is a randomized, placebo controlled, double-blind clinical trial. The investigators aim to examine the safety and efficacy of repeated transcranial magnetic stimulation (rTMS) for the treatment of auditory verbal hallucinations (AVH) in patients with schizophrenia who are not taking antipsychotic medication. The investigators employ a novel, accelerated protocol with only four sessions of low-frequency rTMS in one day. The effects of this accelerated protocol will be compared to the sham stimulation. Additionally, the investigators will examine the effects of rTMS on a neurophysiological level by evaluating mechanism of action in the temporo-parietal lobe by means of functional magnetic resonance imaging.
Who can participate
Age range
18 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Provision of signed and dated informed consent form
. Stated willingness to comply with all study procedures and availability for the duration of the study
. Male or female, aged 18 to 65
. Diagnosed with Diagnostic and Statistical Manual (DSM) V diagnosis of schizophrenia (295.90), schizoaffective disorder (295.70), or brief psychotic disorder (298.80), prone to AVH in the acute phases of the disorder
. Willing to adhere to the rTMS regimen
. No antipsychotic medication in the last two weeks prior to the start of the study as well as no antipsychotic medication during participation in the study
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Efficacy of Transcranial Magnetic Stimulation for Auditory Verbal Hallucinations Assessed With the Hallucination Change Scale
Timeframe: Four timepoints of the Hallucination Change Scale (after every TMS session). Here, score after final session is reported.
. Agreement to adhere to Lifestyle Considerations throughout study duration
Exclusion criteria
. Current use of antipsychotic medication within the last 2 weeks
. Electroconvulsive therapy or rTMS within three months (see the TMS screening questionnaire)
. History of seizures
. Presence of implanted electronic device or metal implant in the head and neck region (DBS, cochlear implant, etc.)
. Pregnancy, as assessed with a pregnancy test prior to every MRI measurement, or lactation
. Any active general medical condition or central nervous system disease which can affect cognition or response to treatment
. Treatment with another investigational drug or other intervention within 2 weeks
. Current diagnosis of delirium, dementia, or amnestic amnesiac disorder; Diagnosis of mental retardation; Current (within the past three months) diagnosis of active substance dependence, or active substance abuse within the past week as indicated by self-report.