Imaging Neuroinflammation in Epilepsy With Ferumoxytol MRI

NCT02084303 | Completed

• 1 other identifier: D14089
• Study Type: interventional
• Target: 10
• Locations: 1 country
• Sites: 1

Brief Summary

The investigators plan to study inflammation in the brain (neuroinflammation) in human patients with epilepsy using a novel, non-invasive technique that has been proven successful in humans with other neuroinflammatory diseases. This technique uses ferumoxytol, a drug with minimal side effects that is FDA-approved for the treatment of iron deficiency anemia, as the contrast agent in magnetic resonance imaging (MRI). The study will recruit epilepsy patients who are admitted to Dartmouth-Hitchcock Medical Center (DHMC) for video-electroencephalography (video-EEG) monitoring in order to evaluate their candidacy for curative brain surgery. During the hospital stay and after informed consent, the patient will receive a standard-dose intravenous injection of ferumoxytol, and undergo one session of MRI at 24-48 hours after the injection. The patient will also undergo a separate "baseline" MRI session (if not already done at DHMC) at admission or at more than four weeks after the injection but before any brain surgery. Brain regions that preferentially uptake ferumoxytol are localized by subtracting the post-injection MRI session from the "baseline" MRI session. The investigators will investigate whether these regions overlap with the epileptogenic focus, namely the region that generates epilepsy and is localized by video-EEG and other diagnostic measures. Lastly, for those patient participants who thereafter undergo brain surgery, DHMC neuropathologists will use special stains to detect and quantify neuroinflammation in brain tissue removed, and the results will serve as the reference for the investigators to measure the sensitivity and specificity of ferumoxytol-based MRI in detecting neuroinflammation.

Conditions

Epilepsy

Outcome Measures

Primary Outcomes (1)

• Overlap of epileptogenic zone with brain regions that take up ferumoxytol

  Ferumoxytol will be injected within one hour of epileptic event and iron-sensitive MRI will be conducted within 48 hours.

  up to 48 hours after epileptic seizure

Secondary Outcomes (1)

• Immunohistochemical evidence of neuroinflammation in brain tissue that has taken up ferumoxytol

  Two years

Study Arms (1)

Ferumoxytol MRI

OTHER

Ferumoxytol injection after focal epileptic seizure followed by iron-sensitive MRI.

Other: Ferumoxytol injection after focal epileptic seizure followed by iron-sensitive MRI

Interventions

Ferumoxytol injection after focal epileptic seizure followed by iron-sensitive MRI OTHER

Ferumoxytol MRI

Eligibility Criteria

• Age: 18 Years - 70 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patient has a plan of hospital stay at Dartmouth-Hitchcock Medical Center for video-EEG monitoring for standard presurgical evaluation for epilepsy.
• Between the ages of 18 and 70 years old.
• Patient or patient's legal guardian is able and willing to sign the informed consent prior to the ferumoxytol injection.
• Able to undergo routine MRI.

You may not qualify if:

• Absence of epileptic seizure event that is detected by video-EEG monitoring and/or by a board-certified epileptologist during the hospital stay
• History of central nervous system conditions other than seizure, including but not limited to history of brain surgeries, cerebral vascular accidents, encephalitis or meningitis, or diagnosis of brain tumors, cerebral aneurysms, multiple sclerosis or Alzheimer's disease.
• History of medical conditions that may influence iron metabolism, including but not limited to diagnosis of hemochromatosis, hyperbilirubinemia, hepatitis, cirrhosis or liver tumors, physical exam finding of jaundice or hepatomegaly, history of abnormal liver function test (LFT) results, or significant family history of hemochromatosis.
• Medical history of adverse reaction to ferumoxytol
• Pregnant or breast feeding

Sponsors & Collaborators

• Dartmouth-Hitchcock Medical Center: lead
• American Epilepsy Society: collaborator

Study Sites (1)

Dartmouth-Hitchcock Medical Center

Lebanon, New Hampshire, 03756, United States

Location

MeSH Terms

Conditions

Epilepsy

Condition Hierarchy (Ancestors)

Brain Diseases; Central Nervous System Diseases; Nervous System Diseases

Study Officials

• Barbara C Jobst, MD

  Dartmouth-Hitchcock Medical Center

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: DIAGNOSTIC
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Neurologist

Study Record Dates

• First Submitted: March 5, 2014
• First Posted: March 11, 2014
• Study Start: March 1, 2014
• Primary Completion: March 29, 2015
• Study Completion: March 2, 2018
• Last Updated: March 14, 2018

Record last verified: 2018-03

Locations

US (1)