SchizophreniaNCT03940898
The Mid-term Effect of Repeated Transcranial Magnetic Stimulation on Schizophrenia
A study testing repetitive transcranial magnetic stimulation in people with Schizophrenia, run by Shanghai Mental Health Center at 1 site in China.
Trial summary
Medications have a poor effect on negative symptoms and cognitive function in schizophrenia. In the past, most of the studies on repetitive transcranial magnetic stimulation intervention in patients with schizophrenia used conventional stimulation sites and patterns, and the intervention effect was still… Read more about this study
- Who is it for?
- Ages 18 to 50 years
- Conditions the study is for
- Schizophrenia
- What is being tested?
- repetitive transcranial magnetic stimulation
- Type of treatment
- Medical device
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 64 participants
- Where
- 1 siteChina
- Study dates
- 1 Jul 2017to 30 Sep 2018
- Phase
- Interventional
- 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 50 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- the patient met the diagnostic criteria for schizophrenia in ICD-10;
- 18-50 years old;
- Right handed;
- The current condition is stable, and the types and doses of antipsychotic drugs are unchanged;
- In the PANSS scale, the score of Pl, P3, P5, P6, and G9 is not more than 5 points, and the score of P2 is not more than 4 points;
Who cannot join
- In addition to schizophrenia, patients with other mental illnesses；
- Contraindications to rTMS;
- Patients receiving ECT(electro-convulsive therapy) in last month;
- Pregnant or lactating woman.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Follow-up Study of Clinical Effects of Repetitive Transcranial Magnetic Stimulation on Schizophrenia
Medications have a poor effect on negative symptoms and cognitive function in schizophrenia. In the past, most of the studies on repetitive transcranial magnetic stimulation intervention in patients with schizophrenia used conventional stimulation sites and patterns, and the intervention effect was still controversial. A few studies have achieved positive results with the new stimulation model (TBS model) and the therapeutic target (cerebellar vermis), but the follow-up period did not exceed 2 weeks, and no similar studies have emerged in China. Therefore, this study hypothesized that the TBS-mode rTMS intervention in the cerebellar vermis can improve the negative symptoms, cognitive function, and depressive symptoms of schizophrenia, and the efficacy can be maintained.
Read the detailed description
Medications have a poor effect on negative symptoms and cognitive function in schizophrenia. In the past, most of the studies on repetitive transcranial magnetic stimulation intervention in patients with schizophrenia used conventional stimulation sites and patterns, and the intervention effect was still controversial. A few studies have achieved positive results with the new stimulation model (TBS model) and the therapeutic target (cerebellar vermis), but the follow-up period did not exceed 2 weeks, and no similar studies have emerged in China. Therefore, this study hypothesized that the TBS-mode rTMS intervention in the cerebellar vermis can improve the negative symptoms, cognitive function, and depressive symptoms of schizophrenia, and the efficacy can be maintained.
- Aim of the study: 1.1 To explore the clinical efficacy of cerebellar vermal theta burst stimulation for negative symptoms, cognitive function and depressive symptoms in patients with schizophrenia. 1.2 The patients were followed up for 24 weeks to explore the duration of rTMS efficacy
- Introduction of the study: This is a multi-center, randomized, sham-controlled, double-blinded trial. Participants diagnosed with schizophrenia from Shanghai Mental Health Center and six district-level mental health centers were randomized according to the odd-even sequence of enrollment, with odd numbers into the study group and even numbers into the control group. Patients in the study group received 100%MT rTMS with the intermittent theta burst stimulation paradigm, while another patients were subjected to pseudo-stimulation treatment, both being given 2-week intervention (5 times per week). The type and dose of antipsychotic drugs taken by patients remained unchanged during the intervention period. Efficacy were assessed with the Positive and Negative Symptoms Scale (PANSS), Hamilton Depression Scale (HAMD-24) and MATRICS Consensus Cognitive Battery (MCCB).
- Conditions
- Schizophrenia
- Being tested
- repetitive transcranial magnetic stimulation
- Keywords
- Repetitive transcranial magnetic stimulation, Schizophrenia, Cerebellar vermis, Negative symptoms, Depressive symptoms, Cognitive function, Follow-up study
- Medical subject headings
- Schizophrenia, Depression
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
repetitive transcranial magnetic stimulationDevice
There are two types of stimulation equipment, one is the transcranial magnetic stimulator model Magpro X100 produced by Danish Medtronic, and the other is the CCY-I TMS stimulator produced by Wuhan Eride, model B9076. The stimulating magnetic head uses an "8" shaped coil, and the stimulation site is the cerebellar vermis (ie, 1 cm below the occipital bulge), and the stimulation intensity is 100% of the motor threshold.The base frequency of the iTBS mode is 5 Hz, and one short burst stimulus occurs every 200 milliseconds. In each short array, three single pulses with a frequency of 50 Hz are buried, and each 10 short burst stimulation intervals are 8 seconds, for a total of 200 short burst stimulations. The total number of stimulation pulses is 600 per day.It takes 3 minutes and 20 seconds to complete one intervention. All participants were intervened once a day for 5 times a week for 2 weeks for a total of 10 times.
| Study group | Role | What they receive |
|---|---|---|
| study group-active rTMS | Active comparator | Participants in the study group received 100%MT(motor threshold) repetitive transcranial magnetic stimulation with the intermittent theta burst stimulation paradigm. Receives: Device: repetitive transcranial magnetic stimulation |
| control group-shame rTMS | Sham comparator | Participants in the control group received rTMS pseudo-stimulation intervention. The stimulation head was inverted by 180 degrees or 90 degrees according to the model of the stimulation device to achieve pseudo-stimulation and the remaining stimulation parameters were consistent with the study group. Receives: Device: repetitive transcranial magnetic stimulation |
What is being measured
The primary outcome is the main question the study is designed to answer.
PANSS-N
The efficacy of negative symptoms was assessed based on the patient's score changes on the PANSS（Positive and Negative Syndrome Scale） negative symptom subscale. PANSS is a relatively mature assessment tool commonly used in clinical research to assess the severity of schizophrenia symptoms. It consists of a positive symptom subscale (7 items), a negative symptom subscale (7 items) and a general psychopathological symptom subscale (16 items), a total of 30 items.Each item has specific definitions and operational grading criteria. It is divided into 7 grades according to the level of psychopathology (1~7 points). The higher the score, the heavier the symptoms. The total score of PANSS is 30- 210 points, the positive symptom subscale and the negative symptom subscale are 7-49 points, and the general psychopathological symptoms subscale is 16 to 112 points.
Measured: 24 weeks
Secondary outcomes (2)
MCCB
The efficacy of cognitive function was assessed based on the patient's score changes on MCCB（MATRICS Consensus Cognitive Battery）.MCCB is a set of neuropsychological tests specifically designed to assess cognitive function in schizophrenia. The MCCB Chinese version includes 9 subtests: Train Making Test, Brief Assessment of Cognition in Schizophrenia, Hopkins Verbal Learning Test, Wechsler Working Memory, Neuropsychological Assessment Battery: Mazes, Brief visuospatial Memory Test, Categoary Fluency (Animal Naming), MSCEIT Emotional Intelligence Test, Continuous Performance Test-Identical Pairs. After the test, the MCCB computer scoring program is used to convert the rough points of each subtest into T scores, and the overall comprehensive score is calculated by the software. The range of each test and the overall composite score T is 0-100 points. The lower the score, the worse the cognitive function.
Measured: 24 weeks
HAMD-24
The efficacy of depressive symptoms was assessed based on the patient's total score changes on HAMD(Hamilton Depression Scale).This study used the 24 version of HAMD. Most of the items in the scale use a five-level scoring standard. The score of each item is between 0 and 4 points, with 0 points representing no; 1 point being mild; 2 points being moderate; 3 points being severe; 4 points being extremely severe. A small number of items use a three-level scoring standard, the score of each item is between 0 and 2 points, with 0 points representing no; 1 point being light-moderate; 2 points being severe. The higher the score, the more severe the symptoms. The total score of the scale ranges from 0 to 76 points.
Measured: 24 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 May 2019
- Study start1 Jul 2017
- Primary completion30 Sep 2018
- Study completion30 Sep 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for SchizophreniaStudies of the same condition, open and under way.
- More trials run by Shanghai Mental Health CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 64 participants (actual)
Sponsor and investigators
- Lead sponsor
- Shanghai Mental Health Center
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Jun Cai, Study director, Shanghai Mental Health Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03940898
- Sponsor's protocol ID
- JCai
- Status last verified
- Apr 2019
- First submitted
- 29 Apr 2019
- Last updated
- 7 May 2019
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 7 May 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Follow-up Study of Clinical Effects of Repetitive Transcranial Magnetic Stimulation on Schizophrenia
- ClinicalTrials.gov ID
- NCT03940898
- Acronym / sponsor ID
- JCai
- Conditions
- Schizophrenia
- Keywords
- Repetitive transcranial magnetic stimulation, Schizophrenia, Cerebellar vermis, Negative symptoms, Depressive symptoms, Cognitive function, Follow-up study
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 64 participants (actual)
- Lead sponsor
- Shanghai Mental Health CenterUniversity, hospital or other
- Study start
- 1 Jul 2017 (actual)
- Primary completion
- 30 Sep 2018 (actual)
- Study completion
- 30 Sep 2018 (actual)
- First posted
- 7 May 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Medications have a poor effect on negative symptoms and cognitive function in schizophrenia. In the past, most of the studies on repetitive transcranial magnetic stimulation intervention in patients with schizophrenia used conventional stimulation sites and patterns, and the intervention effect was still controversial. A few studies have achieved positive results with the new stimulation model (TBS model) and the therapeutic target (cerebellar vermis), but the follow-up period did not exceed 2 weeks, and no similar studies have emerged in China. Therefore, this study hypothesized that the TBS-mode rTMS intervention in the cerebellar vermis can improve the negative symptoms, cognitive function, and depressive symptoms of schizophrenia, and the efficacy can be maintained.
Detailed description
Medications have a poor effect on negative symptoms and cognitive function in schizophrenia. In the past, most of the studies on repetitive transcranial magnetic stimulation intervention in patients with schizophrenia used conventional stimulation sites and patterns, and the intervention effect was still controversial. A few studies have achieved positive results with the new stimulation model (TBS model) and the therapeutic target (cerebellar vermis), but the follow-up period did not exceed 2 weeks, and no similar studies have emerged in China. Therefore, this study hypothesized that the TBS-mode rTMS intervention in the cerebellar vermis can improve the negative symptoms, cognitive function, and depressive symptoms of schizophrenia, and the efficacy can be maintained.
- Aim of the study: 1.1 To explore the clinical efficacy of cerebellar vermal theta burst stimulation for negative symptoms, cognitive function and depressive symptoms in patients with schizophrenia. 1.2 The patients were followed up for 24 weeks to explore the duration of rTMS efficacy
- Introduction of the study: This is a multi-center, randomized, sham-controlled, double-blinded trial. Participants diagnosed with schizophrenia from Shanghai Mental Health Center and six district-level mental health centers were randomized according to the odd-even sequence of enrollment, with odd numbers into the study group and even numbers into the control group. Patients in the study group received 100%MT rTMS with the intermittent theta burst stimulation paradigm, while another patients were subjected to pseudo-stimulation treatment, both being given 2-week intervention (5 times per week). The type and dose of antipsychotic drugs taken by patients remained unchanged during the intervention period. Efficacy were assessed with the Positive and Negative Symptoms Scale (PANSS), Hamilton Depression Scale (HAMD-24) and MATRICS Consensus Cognitive Battery (MCCB).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| study group-active rTMS | Active comparator | Device: repetitive transcranial magnetic stimulationParticipants in the study group received 100%MT(motor threshold) repetitive transcranial magnetic stimulation with the intermittent theta burst stimulation paradigm. |
| control group-shame rTMS | Sham comparator | Device: repetitive transcranial magnetic stimulationParticipants in the control group received rTMS pseudo-stimulation intervention. The stimulation head was inverted by 180 degrees or 90 degrees according to the model of the stimulation device to achieve pseudo-stimulation and the remaining stimulation parameters were consistent with the study group. |
Who may qualify
- Ages
- 18 to 50 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (5 listed)
- the patient met the diagnostic criteria for schizophrenia in ICD-10;
- 18-50 years old;
- Right handed;
- The current condition is stable, and the types and doses of antipsychotic drugs are unchanged;
- In the PANSS scale, the score of Pl, P3, P5, P6, and G9 is not more than 5 points, and the score of P2 is not more than 4 points;
Key exclusion criteria (4 listed)
- In addition to schizophrenia, patients with other mental illnesses；
- Contraindications to rTMS;
- Patients receiving ECT(electro-convulsive therapy) in last month;
- Pregnant or lactating woman.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| repetitive transcranial magnetic stimulationThere are two types of stimulation equipment, one is the transcranial magnetic stimulator model Magpro X100 produced by Danish Medtronic, and the other is the CCY-I TMS stimulator produced by Wuhan Eride, model B9076. The stimulating magnetic head uses an "8" shaped coil, and the stimulation site is the cerebellar vermis (ie, 1 cm below the occipital bulge), and the stimulation intensity is 100% of the motor threshold.The base frequency of the iTBS mode is 5 Hz, and one short burst stimulus occurs every 200 milliseconds. In each short array, three single pulses with a frequency of 50 Hz are buried, and each 10 short burst stimulation intervals are 8 seconds, for a total of 200 short burst stimulations. The total number of stimulation pulses is 600 per day.It takes 3 minutes and 20 seconds to complete one intervention. All participants were intervened once a day for 5 times a week for 2 weeks for a total of 10 times. | Device | control group-shame rTMS, study group-active rTMS |
Primary outcome
PANSS-N
Time frame: 24 weeks
The efficacy of negative symptoms was assessed based on the patient's score changes on the PANSS（Positive and Negative Syndrome Scale） negative symptom subscale. PANSS is a relatively mature assessment tool commonly used in clinical research to assess the severity of schizophrenia symptoms. It consists of a positive symptom subscale (7 items), a negative symptom subscale (7 items) and a general psychopathological symptom subscale (16 items), a total of 30 items.Each item has specific definitions and operational grading criteria. It is divided into 7 grades according to the level of psychopathology (1~7 points). The higher the score, the heavier the symptoms. The total score of PANSS is 30- 210 points, the positive symptom subscale and the negative symptom subscale are 7-49 points, and the general psychopathological symptoms subscale is 16 to 112 points.
2 secondary outcomes
MCCB
Time frame: 24 weeks
HAMD-24
Time frame: 24 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 May 2019.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Jun Cai study director
Shanghai Mental Health Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing repetitive transcranial magnetic stimulation in people with Schizophrenia, run by Shanghai Mental Health Center at 1 site in China.
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 4 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: finished, as of the sponsor's last update on 7 May 2019. 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 China. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
PANSS-N (time frame: 24 weeks). 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 7 May 2019.