Treatment of Negative Symptoms of Schizophrenia by rTMS

NCT ID: NCT06595654

Last Updated: 2024-09-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

124 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-06-09

Study Completion Date

2028-03-31

Brief Summary

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The purpose of this study is to assess the effectiveness of rTMS on the negative symptoms of schizophrenia in real conditions. It will also provide a regulatory framework to rTMS treatments under these conditions. 4 types of rTMS protocols are proposed, allowing to adapt to patients and their tolerances.Treatment lasts between 2 and 4 weeks, with a follow-up period of 3 months after treatment to observe relapses.To assess the evolution of negative symptoms between baseline and the end of treatment, investigators use SANS (Scale for the Assessment of Negative Symptoms).

Detailed Description

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Conditions

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Schizophrenia Negative Symptoms in Schizophrenia

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Method 1

One stimulation session per day for 20 working days, so 4 weeks (frequency of 10 Hz, 80% 100% of motor threshold). Each session lasts 20 min. The duration of the train is 4 s, an inter-train of 56s.

Group Type OTHER

repetitive Transcranial Magnetic Stimulation

Intervention Type OTHER

* Patient is in a chair.
* Hearing protection will be implemented.
* The corresponding targeting method will be implemented.
* The stimulation coil will be set up according to the indications of the targeting method.
* A caregiver is present throughout the session.
* After the session, the patient is re-assessed clinically for possible adverse effects.
* If an adverse reaction is objectified, a doctor on site, is quickly mobilized.

Method 2

Two stimulations sessions per day, with 1 hour apart, for 20 working days, so 4 weeks (frequency of 20 Hz, 100% of motor threshold).Each session lasts 28 min. The duration of the train of 10 s, an inter-train of 80s The total number of pulses is 40000 in 20 trains or 2000 per day.

Group Type OTHER

repetitive Transcranial Magnetic Stimulation

Intervention Type OTHER

* Patient is in a chair.
* Hearing protection will be implemented.
* The corresponding targeting method will be implemented.
* The stimulation coil will be set up according to the indications of the targeting method.
* A caregiver is present throughout the session.
* After the session, the patient is re-assessed clinically for possible adverse effects.
* If an adverse reaction is objectified, a doctor on site, is quickly mobilized.

Method 3

Two stimulations session per day for 10 working days, so 2 weeks. The protocol is delivered in bursts containing 3 pulses at 50 Hz repeated at 200 ms intervals for 2 s (i.e., 5 Hz). Stimulation intensity is set at 80% of the idle motor threshold intensity

Group Type OTHER

repetitive Transcranial Magnetic Stimulation

Intervention Type OTHER

* Patient is in a chair.
* Hearing protection will be implemented.
* The corresponding targeting method will be implemented.
* The stimulation coil will be set up according to the indications of the targeting method.
* A caregiver is present throughout the session.
* After the session, the patient is re-assessed clinically for possible adverse effects.
* If an adverse reaction is objectified, a doctor on site, is quickly mobilized.

Method 4

Five to ten sessions per day, 50 minutes apart, with 90% SM for 10 working days, so 2 weeks. 1 of stimuli every 20 ms (50Hz) repeated 3 times, this train itself repeated every 200 ms (5 Hz) or 60 cycles of 10 blocks of 3 stimuli. The duration of the train is 2 seconds with an inter-train of 8 seconds. So there are 1800 stimuli per session

Group Type OTHER

repetitive Transcranial Magnetic Stimulation

Intervention Type OTHER

* Patient is in a chair.
* Hearing protection will be implemented.
* The corresponding targeting method will be implemented.
* The stimulation coil will be set up according to the indications of the targeting method.
* A caregiver is present throughout the session.
* After the session, the patient is re-assessed clinically for possible adverse effects.
* If an adverse reaction is objectified, a doctor on site, is quickly mobilized.

Interventions

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repetitive Transcranial Magnetic Stimulation

* Patient is in a chair.
* Hearing protection will be implemented.
* The corresponding targeting method will be implemented.
* The stimulation coil will be set up according to the indications of the targeting method.
* A caregiver is present throughout the session.
* After the session, the patient is re-assessed clinically for possible adverse effects.
* If an adverse reaction is objectified, a doctor on site, is quickly mobilized.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patient over 18 years of age
* Patient diagnosed with schizophrenia according to the DSM-V criteria (Diagnostic and Statistical Manual of Mental Disorder V5, 2013)
* Stable drug treatment for at least 4 weeks
* Presence or persistence of negative symptoms in the foreground:

Negative PANSS score ⩾21, positive PANSS score ⩽24

* Patient (or legal representative) willing to participate in the study and having signed an informed consent
* Patient fluent in the French language
* Affiliation to a social security scheme

Exclusion Criteria

* Present a contraindication to TMS: intracranial foreign body, unstabilized epilepsy, cochlear implant, pace-maker
* Presence of an unstabilized medical condition
* Pregnant woman
* Woman of childbearing potential and without effective contraception
* Breastfeeding woman
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Centre hospitalier de Ville-Evrard, France

OTHER

Sponsor Role lead

Responsible Party

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Dominique JANUEL

Head of clinical research unit

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Dominique Januel

Role: PRINCIPAL_INVESTIGATOR

Clinical research unit, EPS Ville Evrard

Locations

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Etablissement Public de Santé de Ville-Evrard

Neuilly-sur-Marne, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Youcef Bencherif

Role: CONTACT

+33 1 43 09 32 32

Facility Contacts

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Youcef Bencherif

Role: primary

+33 1 43 09 32 32

Rusheentira Thavaseelan

Role: backup

+33 1 43 09 32 32

Other Identifiers

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2021-A02710-40

Identifier Type: -

Identifier Source: org_study_id

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