Feasibility Study for Enhancing Gait Following Stroke With Implanted

Status Completed

Clinical Trial Summary

The purpose of this study is to test an innovative, advanced FNS microstimulator technology developed by the Alfred Mann Foundation (Santa Clarita, CA) called, the Radio Frequency Microstimulation (RFM) Gait System that promises to provide FNS training for restoration of functional gait components in a manner at least as efficacious as current investigational FNS systems. The design features of the RFM Gait System are intended to address the problems with the current FNS systems. The RFM implant devices are small enough to be inserted using only a 5 mm incision[3]. Because both the electrode (anode and cathode) are contained within the microstimulator, there are no lead wires traversing the skin, joints, or torso/limb junctures. Individual RFMs can be inserted at the motor points and nerves of each of the paretic muscles in the involved limb and coordinated using radio frequency technology.

Clinical Trial Description

The primary objective (Aim I) of this study is to evaluate whether the RFM Gait System can restore the capability to perform the components of gait required for safe, functional walking, for patients in the chronic phase after stroke (> 12 months). We will assess the treatment provided by the RFM system at the Cleveland VA compared to the FNS percutaneous Schreiner electrodes and custom-designed controller previously investigated by the investigators.

The similarities between the RFM-based and percutaneous FNS systems will be assessed using six gait components required for the execution of functional, safe gait, which are lower limb strength, coordination, an index of walking endurance, muscle tone, walking speed, and quality of life.

The secondary objective of this study is to test the technological performance and safety of the RFM Gait System. Measures of technology performance and safety include implantation time; anchoring capability at the motor point of the muscle; reliability of the RFMs during use; reliability of electrical performance of the system; comfort of the system (with stimulation off); comfort of the electrical stimulus. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01640041
Study type	Interventional
Source	The Alfred E. Mann Foundation for Scientific Research
Contact
Status	Completed
Phase	N/A
Start date	May 2008
Completion date	January 2010

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See also
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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.

Feasibility Study for Enhancing Gait Following Stroke With Implanted Microstimulators

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms