MR Guided Focused Ultrasound for Treatment of Neuropathic Pain

Status Completed

Clinical Trial Summary

Neuropathic pain is often a result of direct diseases of peripheral or central nervous system with an estimated prevalence of 8% of adults and this pain is associated with significant consequences because of longer symptom duration and severity than many of the other pain syndromes. Functional brain imaging has revealed that many regions of the brain are engaged by painful events, but specific areas such as the thalamus have been markedly implicated. The purpose of this study is to determine the feasibility and safety of MRI-guided focused ultrasound treatment using the ExAblate Transcranial System in patients suffering from Neuropathic pain. This treatment modality offers non-invasive precise treatment potential for these patients.

Clinical Trial Description

The primary purpose of this study is to assess the safety of MRI-guided focused ultrasound (MRgFUS) in patients with chronic neuropathic pain whose medicines are not working well. The device that will be used to create and send ultrasound waves through the skull is called the ExAblate Transcranial system. The ultrasounds waves will precisely target a small part of the brain known as the thalamus. Chronic neuropathic pain is a common type of disabling pain that affects people. Usually, people with chronic neuropathic pain are treated with medicines to control the pain. However, these medications may not provide adequate relief of the pain or may be associated with undesirable side effects. This study intends to investigate the use of a new technology The ExAblate transcranial system for treating patients that are not responding to medications and continue to have disabling pain. The ExAblate Transcranial system will be used to destroy a small cluster of cells that may be causing the study participant's pain . The ExAblate uses ultrasound to heat a small spot in the brain. The process of ablation is similar to a magnifying glass that uses light to heat a small spot on a piece of paper. Ultrasound passes through the skin and skull and into the brain to focus on a spot the study investigator wants to treat.Once the spot is destroyed, it cannot grow back. ;

Study Design

Related Conditions & MeSH terms

Neuralgia
Phantom Limb
Phantom Limb Pain
Radiculopathy
Severe Neuropathic Pain Due to Radiculopathy or Radicular Injury
Spinal Cord Injuries
Wounds and Injuries

Clinical Trial Details

NCT number	NCT03111277
Study type	Interventional
Source	University of Maryland, Baltimore
Contact
Status	Completed
Phase	N/A
Start date	September 15, 2017
Completion date	October 9, 2022

View Details

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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.