Amantadine & Functional Improvement Following ABI Measured by MRI

Status Not yet recruiting

Clinical Trial Summary

This is a pilot study. The objective is to further understand the mechanism by which amantadine improves function in patients with persistent vegetative state and minimally conscious state. Specifically, the investigators will measure the size of the nerve fibers that mediate arousal (reticular activating system, or RAS) pre and post treatment on MRI tractography. MRI findings will be correlated with the Disability Rating Scale (DRS) score. The information gathered from this study will be used to formulate a larger clinical trial.

Clinical Trial Description

Primary Aim:

To determine the size of the RAS tracts as measured by MRI tractography. Specifically, the investigators will be measuring the fiber tracts that project through the posterior thalamus. The RAS is involved in mediating arousal and consciousness. The size of fiber tracts will be measured prior to initiating treatment and near the time of discharge from the rehabilitation hospital or at approximately ninety-days. It is hypothesized that treatment will result in an increase in the size of these fiber tracts.

As a pilot study, the investigators will be determining the feasibility of recruiting and retaining patients in this type of study. This will allow the clarification and understanding of the technical standards for MRI tractography related to the assessment of the reticular activating system.

Secondary Aim:

To determine and monitor changes in function following acquired brain injury as measured by the Disability Rating Scale (DRS) score. The DRS score will be obtained prior to initiating treatment and at termination of the study. It is hypothesized that treatment with amantadine in addition to standard medical treatment, will be associated with an improvement in function. ;

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02566720
Study type	Interventional
Source	Hamilton Health Sciences Corporation
Contact	Pankaj Bansal, MD
Phone	9055748515
Email	bansalp@hhsc.ca
Status	Not yet recruiting
Phase	N/A
Start date	January 2016
Completion date	June 2017

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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.

Amantadine and Functional Improvement Following ABI Measured by MRI Tractography; A Pilot Study

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms