View clinical trials related to Epilepsy.
Filter by:The major hypothesis explaining drug resistance is overexpression of p-glycoprotein at the target lesion. Based on several studies, p-glycoprotein (P-gp) has an important role in neurologic diseases, especially in drug resistant epilepsy. But there is no surrogate marker that can quantify the expression of P-gp because of the difficulty in measuring substances in the neurologic system and the lack of clinical trials. Here, the investigators use a novel non-invasive [11C] -verapamil Brain PET and SPAM analytic method as a surrogate marker for quantifying the expression of p-glycoprotein.
Objectives: The overall study objective is to compare the sensitivities and specificities of morphometric analysis techniques using structural MRI images based on pre- and postsurgical localization of epileptic foci in patients undergoing presurgical evaluation for medically refractory epilepsy. To carry out these analyses, we aim to establish an age-stratified normative imaging database using healthy volunteers. Additional objectives are to identify abnormal networks in these patients using resting state fMRI/EEG and MEG/EEG, and to use language and memory fMRI tasks to examine the effects of epileptogenic zones and surgery on cognitive function and the networks associated with these functions. Study population: 300 adults and children (age 8 and older) with uncontrolled focal epilepsy, and 200 age-stratified healthy volunteers. Design: A retrospective and prospective natural history study. Research procedures for patients in this study include neuropsychological testing and 1-4 MRI sessions during presurgical evaluation and an additional 1-3 MRI sessions and neuropsychological testing approximately 12 months post-operatively. Research testing (such as research neuropsychological tests or MRI scanning sequences) will be done during a visit for clinical testing whenever possible, likely reducing the number of required visits. Patients will also have optional MEG and 7T structural imaging. Data will also be obtained from patients who have already undergone epilepsy surgery if they had procedures as outlined in the protocol and are willing to share the data. Healthy volunteers will receive a subset of the pre-operative procedures for patients, requiring at least 3 visits. In order to ensure adequate data acquisition, subjects may be re-scanned up to three times for the portions of the study in which they participated, possibly requiring additional visits. Outcome measures: The main outcomes will be establishment of normative values for morphometric analysis methods in age-stratified normal controls, and comparison of the sensitivity and specificity of these measures to pre- and postsurgical localization of the epileptogenic zone. Secondary outcome measures will include determination of the sensitivity and specificity of source localization using MEG/EEG and resting state fMRI/EEG, and to evaluate changes in activation during rest, as well as language and memory fMRI tasks in patients pre- and postsurgically, to examine the effects of epileptogenic zones and surgery on cognitive function and the networks underlying these functions.
The Objective of this study is to compare 2-year retention rate of topiramate, levetiracetam and oxcarbazepine in a long term epilepsy treatment.
The primary objective of clinical part of EPISTOP project is to identify the clinical and molecular biomarkers of epileptogenesis in a prospective clinical study of patients with TSC. Secondary objective of the clinical part of EPISTOP is to compare the effects of standard antiepileptic treatment in patients diagnosed as having epilepsy after clinical seizures vs after electroencephalographic epileptiform discharges, in a randomized trial in TSC patients.
The purpose of this study is to determine whether transcutaneous auricular vagus nerve stimulation as a complementary therapy is effective in the treatment of pediatric epilepsy.
This study has two purposes: firstly, a better understanding of the neurobiological processes underlying episodic memory and, secondly, the development of useful clinical applications for epileptic patients, in particular the prediction of postoperative memory deficits and the development of cognitive remediation therapies. Memory performances during a fMRI experiment will be assessed in controls and epileptic patients before and after the surgery.
A study in stable epilepsy patients comparing levels of valproic acid after administration of brand and generic divalproex sodium extended release tablets.
Investigators at Boston Children's Hospital are conducting research in order to better understand the genetic factors which may contribute to epilepsy and related disorders. These findings may help explain the broad spectrum of clinical characteristics and outcomes seen in people with epilepsy.
CoRDS, or the Coordination of Rare Diseases at Sanford, is based at Sanford Research in Sioux Falls, South Dakota. It provides researchers with a centralized, international patient registry for all rare diseases. This program allows patients and researchers to connect as easily as possible to help advance treatments and cures for rare diseases. The CoRDS team works with patient advocacy groups, individuals and researchers to help in the advancement of research in over 7,000 rare diseases. The registry is free for patients to enroll and researchers to access. Visit sanfordresearch.org/CoRDS to enroll.
This study examines the use of an online social media platform (PatientsLikeMe) to assist Veterans with epilepsy. The hypothesis is that the online social media platform, PatientsLikeMe, will improve selected patient-reported outcomes on perceived self-management skills for patients who engage in the website functions.