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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03003156
Other study ID # SHDC12014111a
Secondary ID
Status Completed
Phase N/A
First received December 16, 2016
Last updated May 3, 2017
Start date February 2016
Est. completion date March 2017

Study information

Verified date May 2017
Source Shanghai Mental Health Center
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This trial attempts to investigate whether the dosage (frequency) has an effect on the treatment efficacy and cognitive outcomes of magnetic seizure therapy (MST) among schizophrenia patients. Half of the participants will be recruited to receive 25 Hz MST, while the other half will be recruited to 50 Hz MST.


Description:

Magnetic seizure therapy (MST) is likely to be an alternative options to electroconvulsive therapy (ECT).Widespread stimulation of cortical and subcortical regions is inevitable for ECT since the substantial impedance of the scalp and skull shuts most of the electrical stimulus away from the brain. Nevertheless, magnetic pulses are capable to focus the stimulus to a specific area of the brain because they can pass the scalp and skull without resistance. In Addition, electric current will penetrate into deeper structures, while magnetic stimulus are only capable to reach a depth of a few centimeters. As a consequence, MST are able to generate focus stimuli on superficial regions of the cortex while ECT can't, which may give MST the capability to produce comparable therapeutic benefits with the absence of apparent cognitive side effects. Though high dose (frequency) MST is gaining popularity, there is no evidences supporting its superiority over low dose (frequency) MST either on efficacy, safety, or seizure quality.


Recruitment information / eligibility

Status Completed
Enrollment 18
Est. completion date March 2017
Est. primary completion date February 2017
Accepts healthy volunteers No
Gender All
Age group 18 Years to 55 Years
Eligibility Inclusion Criteria:

1. DSM-5 diagnosis of schizophrenia;

2. convulsive therapy clinically indicated, such as severe psychomotor excitement or retardation, attempts of suicide, being highly aggressive, pharmacotherapy intolerance, and ineffectiveness of antipsychotics;

3. the positive and negative syndrome scale (PANSS)[20] score = 60;

4. informed consent in written form.

Exclusion Criteria:

1. diagnosis of other mental disorders;

2. severe physical diseases, such as stroke, heart failure, liver failure, neoplasm, and immune deficiency;

3. present with a laboratory abnormality that could impact on efficacy of treatments or safety of participants;

4. failure to respond to an adequate trial of ECT lifetime;

5. are pregnant or intend to get pregnant during the study;

6. other conditions that investigators consider to be inappropriate to participate in this trial.

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
25 Hz magnetic seizure therapy
In addition to treatment as usual (TAU), participants were supposed to receive ten sessions of 25 Hz MST in four weeks, with three sessions per week in the first two weeks and two sessions per week in the following two weeks.
50 Hz magnetic seizure therapy
In addition to treatment as usual (TAU), participants were supposed to receive ten sessions of 50 Hz MST in four weeks, with three sessions per week in the first two weeks and two sessions per week in the following two weeks.

Locations

Country Name City State
China Shanghai Mental Health Center Shanghai Shanghai

Sponsors (1)

Lead Sponsor Collaborator
Shanghai Mental Health Center

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary changes of The Positive and Negative Syndrome Scale (PANSS) At baseline, 4-week follow-up
Secondary changes of The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) At baseline and 4-week follow-up
Secondary seizure duration at each treatment session, up to 4 weeks
Secondary Adverse events up to 4 weeks
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