About this trial
This study is to evaluate the effectiveness of targeted Transcranial Electrical Stimulation with Temporal Interference (TES-TI) interventions to boost Non-Rapid Eye Movement (NREM) sleep, decrease seizures and promote emotional health in patients with epilepsy. Up to 24 participants (8 control participants for technical optimization prior to recruitment and 16 patients with epilepsy) will be enrolled and can expect to be on study for up to 24 months.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
English-speaking (able to provide consent and complete questionnaires)
Citizen or holding permanent resident status
History of refractory epilepsy with intractable seizures and/or cognitive decline
Disqualifiers
Any current or past history of neurological disorders or acquired neurological disease other than epilepsy (e.g. stroke, traumatic brain injury), including intracranial lesions
Current history of poorly controlled headaches including intractable or poorly controlled migraines
Any systemic illness or unstable medical condition that may cause a medical emergency in case of a provoked seizure (cardiac malformation, cardiac dysrhythmia, asthma, etc.)
Possible pregnancy or plan to become pregnant in the next 6 months
Trial design
Crossover
Treatments tested in this trial
TES-TI
DeviceReal stimulation will take place on visits 2 - 5 or visits 6 - 10.
Sham Stimulation
Other interventionSham stimulation will take place on visits 2 - 5 or visits 6 - 10.
Structural and Functional MRI
Other interventionAfter baseline night visit 1 and before intervention visits 2 - 10. MRI is used to help determine electrode placement.
Treatment groups
Trial outcomes
Primary outcomes
NREM Sleep Slow-Wave Activity Measured by High-Density EEG (delta power)
To assess the effect of TES-TI on NREM sleep slow-wave activity during treatment (4 nights) vs. sham (4 nights), slow-wave activity will be measured by high-density EEG.
Number of Seizures per week
To assess the effect of TES-TI on incidence of seizures after treatment (4 nights) vs. sham (4 nights), participants will maintain a seizure diary. The self-reported number of seizures seizures per week for the first week and the first four-weeks post-intervention.
Psychomotor Vigilance Task (PVT)
The vigilance task will be used to assess the effect of TES-TI on performance after treatment (4 nights) vs. sham (4 nights). This is a computerized reaction time task where a participant is presented with a fixation point on a computer screen. At random, the fixation point will change appearance at which point the participant is to click a provided button as quickly as possible. The time it took to respond is recorded automatically by the computer program and will be reported as the result.
Restorative Sleep Questionnaire (REST-Q)
The REST-Q measure will be used to assess the effect of TES-TI on sleep quality and mood after treatment (4 nights) vs. sham (4 nights). It is a 9-item questionnaire assessing aspects of restorative sleep. Each item is scored on a 5-point Likert scale (1-light; 5-deep). Final scores are transformed to a scale of 0-100 here higher scores indicate more restorative sleep.
Sponsors and contacts
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University of Wisconsin, Madison
Lead sponsor
Lily's Fund for Epilepsy Research
Collaborator
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