Magnetic Seizure Therapy (MST) for Severe Mood Disorder

Status Completed

Clinical Trial Summary

This study will compare the clinical efficacy and side effects of Magnetic Seizure Therapy (MST) and Electroconvulsive Therapy (ECT) in patients currently experiencing a major depressive episode in the context of either unipolar or bipolar depression. The investigators will conduct a number of clinical and neuropsychological tests to assess clinical and cognitive response to treatment. The investigators hypothesize that:

1. MST and ECT will have similar antidepressant efficacy.

2. MST will have less post-treatment amnesia than ECT as reflected in primary measures of anterograde and retrograde amnesia following the acute treatment phase.

3. At follow up, MST will show a lesser degree of persisting deficit in measures of retrograde amnesia than ECT.

Clinical Trial Description

The purpose of this study is to compare the clinical efficacy and side effects of Magnetic Seizure Therapy (MST) and Electroconvulsive Therapy (ECT) in patients currently experiencing a major depressive episode in the context of either unipolar or bipolar depression. ECT is known to be highly effective in treating depression, but it can have some adverse cognitive side effects. MST is a new form of convulsive therapy that is being developed as a means of improving the side effect profile of ECT so that more patients may benefit without suffering significant detrimental effects on cognition.

Both ECT and MST cause a seizure, but they do so in different ways. In ECT, an electrical stimulator is used to pass an electrical current between two electrodes placed on the person's head, which causes some electricity to go through the brain and cause a seizure. In MST, a magnetic stimulator is used to pass a magnetic field to the brain, which then creates a small electrical field in the brain that causes a seizure.

In addition to the treatment sessions, this study will involve a number of assessments at different timepoints that are used to evaluate the person's antidepressant response and the physical and cognitive side effects of treatment. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00488748
Study type	Interventional
Source	Duke University
Contact
Status	Completed
Phase	Phase 3
Start date	June 2007
Completion date	August 2012

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.