Surgery as a Treatment for Medically Intractable Epilepsy

This study is currently recruiting participants. (see Contacts and Locations)
Verified August 2016 by National Institutes of Health Clinical Center (CC)
Sponsor:
Information provided by:
National Institutes of Health Clinical Center (CC)
ClinicalTrials.gov Identifier:
NCT01273129
First received: January 7, 2011
Last updated: August 24, 2016
Last verified: August 2016
  Purpose

Background:

- Medically intractable epilepsy is the term used to describe epilepsy that cannot be controlled by medication. Many people whose seizures do not respond to medication will respond to surgical treatment, relieving seizures completely or almost completely in one-half to two-thirds of patients who qualify for surgery. The tests and surgery performed as part of this treatment are not experimental, but researchers are interested in training more neurologists and neurosurgeons in epilepsy surgery and care in order to better understand epilepsy and its treatment.

Objectives:

- To use surgery as a treatment for medically intractable epilepsy in children and adults.

Eligibility:

- Children and adults at least 8 years of age who have simple or complex partial seizures (seizures that come from one area of the brain) that have not responded to medication, and who are willing to have brain surgery to treat their medically intractable epilepsy.

Design:

  • Participants will be screened with a medical history, physical examination, and neurological examination. Imaging studies, including magnetic resonance imaging and computer-assisted tomography (CT), may also be conducted as part of the screening. Participants who do not need surgery or whose epilepsy cannot be treated surgically will follow up with a primary care physician or neurologist and will not need to return to the National Institutes of Health for this study.
  • Prior to the surgery, participants will have the following procedures to provide information on the correct surgical approach.
  • Video electroencephalography monitoring to measure brain activity during normal activities within a 24-hour period. Three to four 15-minute breaks are allowed within this period.
  • Wada test to evaluate speech, comprehension, and memory centers of the brain, using a contrast dye to study the blood vessels of the brain and a short-term anesthetic administration procedure to test the effects on areas of speech and memory.
  • Depth electrodes and/or brain surface electrodes to measure brain activities and determine the part of the brain that is responsible for the seizures (seizure focus).
  • Participants will have a surgical procedure at the site of their seizure focus. Brain lesions, abnormal blood vessels, tumors, infections, or other areas of brain abnormality will be either removed or treated in a way that will stop or help prevent the spread of seizures without affecting irreplaceable brain functions, such as the ability to speak, understand, move, feel, or see.
  • Participants will return for outpatient visits and brain imaging studies 2 months, 1 year, and 2 years after surgery.

Condition
Epilepsy
Epilepsy, Temporal Lobe
Partial Epilepsy

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: Surgery as a Treatment for Medically Intractable Epilepsy

Resource links provided by NLM:


Further study details as provided by National Institutes of Health Clinical Center (CC):

Primary Outcome Measures:
  • Change in seizure frequency [ Time Frame: 1 year ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Percentage seizure-free [ Time Frame: 1 year ] [ Designated as safety issue: No ]
  • Mean Engel Class one year after surgery [ Time Frame: 1 year ] [ Designated as safety issue: No ]
  • Percentage with permanent neurological side-effects from surgical treatment [ Time Frame: 1 year ] [ Designated as safety issue: No ]
  • Incidence of serious complications of epileptic seizures [ Time Frame: 1 year ] [ Designated as safety issue: No ]
  • Percentage of patients who are able to be completely withdrawn from anti-epileptic medication; [ Time Frame: 1 years ] [ Designated as safety issue: No ]

Estimated Enrollment: 200
Study Start Date: December 2010
  Show Detailed Description

  Eligibility

Ages Eligible for Study:   8 Years to 100 Years   (Child, Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria
  • INCLUSION CRITERIA:

To be eligible for entry into the study, candidates must meet all the following criteria:

  1. Be 8 years of age or older with medically intractable epilepsy or tumor related epilepsy.
  2. Have simple or complex partial seizures.
  3. Seizures must persist despite medical therapy (medically intractable epilepsy) or seizures must be associated with the presence of a brain tumor.
  4. Able to give informed consent, or have a parent able to provide informed consent if a child.
  5. Agree to undergo brain surgery if indicated to treat medically intractable epilepsy.

EXCLUSION CRITERIA:

Candidates will be excluded if they:

  1. Are pregnant (women of childbearing age will be tested with a urine pregnancy test and will have agreed to avoid being pregnant by practicing a reliable form of contraception or by abstinence from sexual intercourse while undergoing evaluation for epilepsy surgery and for 1 month after epilepsy surgery).
  2. Cannot have an MRI scan.
  3. Have a bleeding disorder that cannot be corrected before invasive testing or surgery, or other medical conditions which would make testing or surgery unsafe, such as lung or cardiac disease which would increase the risk of general anesthesia or severe immunodeficiency or systemic cancer not related to a brain lesion.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01273129

Contacts
Contact: Aaliyah H Thiam Not Listed SNBrecruiting@nih.gov

Locations
United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike Recruiting
Bethesda, Maryland, United States, 20892
Contact: For more information at the NIH Clinical Center contact Patient Recruitment and Public Liaison Office (PRPL)    800-411-1222 ext TTY8664111010    prpl@mail.cc.nih.gov   
Sponsors and Collaborators
National Institute of Neurological Disorders and Stroke (NINDS)
Investigators
Principal Investigator: Kareem A Zaghloul, M.D. National Institute of Neurological Disorders and Stroke (NINDS)
  More Information

Additional Information:
Publications:
ClinicalTrials.gov Identifier: NCT01273129     History of Changes
Other Study ID Numbers: 110051  11-N-0051 
Study First Received: January 7, 2011
Last Updated: August 24, 2016
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
Neurosurgery
Childhood Epilepsy
Epilepsy
Frontal Lobe Epilepsy
Temporal Lobe Epilepsy

Additional relevant MeSH terms:
Epilepsy
Epilepsies, Partial
Drug Resistant Epilepsy
Epilepsy, Temporal Lobe
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases

ClinicalTrials.gov processed this record on August 30, 2016