Clinical Trials Logo

Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT05248269
Other study ID # NMSC-01-22
Secondary ID
Status Enrolling by invitation
Phase N/A
First received
Last updated
Start date February 7, 2022
Est. completion date December 1, 2024

Study information

Verified date September 2023
Source State Budgetary Healthcare Institution, National Medical Surgical Center N.A. N.I. Pirogov, Ministry of Health of Russia
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Therapeutic thermocoagulation will be carried out in patients with drug-resistant focal epilepsy in cases where an epileptogenic zone is found and proven according to stereo-electroencephalography (SEEG) data.


Description:

Open-label, pilot, non-comparative, interventional cohort study. Each patient will be examined at least 8 times (8 visits will pass): Visit 0 - screening (within 14 days before Visit 1), Visit 1 (visit includes the procedure for the destruction of the epileptogenic focus), Visits 2 and 3 (after 1 and 2 days after Visit 1) - a repeated procedure for the destruction of the epileptogenic focus with an incomplete effect of the first procedure (not mandatory, carried out by the decision of the principal investigator), Visits 4-7 (7, 14, 30, 180 days after the procedure for the destruction of the epileptogenic focus). Patients will be divided into 4 cohorts of 4 patients. Enrollment in the study of the next cohort of patients will be based on the safety analysis of the previous cohort 1 day after the manipulation. After assessing the position of the electrodes based on the conjugation of brain MRI data before and after SEEG implantation and seizure recording, the ictal zone is determined. Thus, the localization of pathological activity is determined on the basis of neuroimaging data, as well as in accordance with the activity under certain contacts of the SEEG electrodes. After explaining the treatment options to the patient and relatives, informed voluntary consent is taken for the implementation of this procedure. Using a radio frequency generator Cosman RFG-G4, destruction is carried out at the necessary electrode contacts with a power of 3W, exposure time of 180 sec. In case of pain occurrence, the procedure is immediately terminated. After the procedure, the patient continues SEEG monitoring for 3 days. If additional epileptogenic zones are identified, if necessary, a repeated thermocoagulation is performed (on the 2nd and 3rd days of the study). If there is no need for a second thermocoagulation, then Visits 2 and 3 are not performed. Next, the patient undergoes removal of the electrodes, a control MRI study is performed. Follow-up includes follow-up for 6 months. Visits 4-6 involve phone interviews with patients. During the conversation, the researcher should clarify complaints, general well-being, the presence and frequency of epileptic seizures over the period of time that has passed since the previous visit.


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 16
Est. completion date December 1, 2024
Est. primary completion date June 1, 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years to 60 Years
Eligibility Inclusion Criteria: 1. Diagnosis of symptomatic drug-resistant epilepsy according to anamnesis, results of video EEG monitoring with registration of epileptic seizures. 2. The epileptogenic zone verified using invasive electrodes. 3. The patient has read the information sheet and signed the informed consent form. Non-inclusion Criteria: 1. Persons with mental disorders. 2. Women during pregnancy, childbirth. 3. Women during breastfeeding. 4. Reception of anticoagulants. 5. Location of the epileptogenic focus within functionally significant areas, large vessels of the brain. 6. Primary generalized forms of epilepsy. Exclusion Criteria: 1. Absence of a registered seizure on stereo-EEG. 2. Absence of a focal pattern during invasive stereo-EEG monitoring. Dropout Criteria: 1. Refusal of the patient from observation 2. The occurrence of contraindications that may prevent participation in diagnostic and treatment activities. 3. Unwillingness or inability of the patient to comply with the requirements of the protocol, including the presence of any condition (physical, mental or social) that may affect his ability to comply with the requirements of the study 4. Identification of conditions during the study that meet the exclusion criteria for non-inclusion of patients. 5. Lack of effect from thermocoagulation within a month after manipulation or worsening of the condition associated with an increase in the number/severity of epileptic seizures.

Study Design


Intervention

Procedure:
Radiofrequency thermocoagulation
The 2 pertinent contacts connect to Radiofrequency thermocoagulation lesion-generator equipment (Cosman G4 with Ad-tech electrodes), expressly modified for use with SEEG electrodes. The following parameters will be adopted: current power 3 W within 180 seconds and current intensity (usually approximately 25 mA) variable according to impedance.

Locations

Country Name City State
Russian Federation Pirogov National Medical and Surgical Center Moscow

Sponsors (1)

Lead Sponsor Collaborator
State Budgetary Healthcare Institution, National Medical Surgical Center N.A. N.I. Pirogov, Ministry of Health of Russia

Country where clinical trial is conducted

Russian Federation, 

Outcome

Type Measure Description Time frame Safety issue
Primary Severe adverse reactions and events rate Severe adverse reactions and events will be monitored and registered during procedure of thermocoagulation and up to 6 months after procedure Up to 6 months after procedure
Primary Seizure freedom or reduction after procedure The incidence of seizures will be assessed and registered daily by patient in the diary for self-inspection. Records in the diary will be inspected by investigators during follow-up visits. Up to 6 months after procedure
Secondary Three-level European quality of life five-dimensional questionnaire There are five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 3 levels: no problems, some problems, and extreme problems. Patients choice results into a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions can be combined into a 5-digit number that describe the health status. Up to 6 months after procedure
Secondary Pittsburgh Sleep Quality Index (PSQI) Questionnaire The Pittsburgh Sleep Quality Index (PSQI) is a questionnaire that assesses sleep quality over a 1 month time frame. It consists of 19 individual elements, making up 7 components that give one overall rating. Each item is weighted on a scale from 0 to 3. The overall PSQI score is then calculated by adding the scores of the seven components to give an overall score of 0 to 21, where lower scores mean healthier sleep quality. Up to 6 months after procedure
Secondary Change of epileptiform activity on electroencephalography (EEG) study EEG will be registered and reduction of epileptiform activity will be assessed (Beta, Theta, spikes, sharp waves). Days 1, 7, 180
Secondary Beck Depression Inventory This is a 21-question test that helps determine the psychological state of a person.
The score for each category is calculated as follows: each item on the scale is scored from 0 to 3 according to the increasing severity of the symptom. The total score ranges from 0 to 63 and decreases as the condition improves.
The questionnaire is handed out to the patient and filled out by him independently.
The results are evaluated depending on the number of points scored:
0-13 - variations considered normal 14-19 - mild depression 20-28 - moderate depression 29-63 - severe depression
Up to 6 months after procedure
See also
  Status Clinical Trial Phase
Completed NCT04595513 - Stopping TSC Onset and Progression 2: Epilepsy Prevention in TSC Infants Phase 1/Phase 2
Completed NCT02909387 - Adapting Project UPLIFT for Blacks in Georgia N/A
Completed NCT05552924 - Self Acupressure on Fatigue and Sleep Quality in Epilepsy Patients N/A
Terminated NCT01668654 - Long-term, Open-label Safety Extension Study of Retigabine/Ezogabine in Pediatric Subjects (>= 12 Years Old) With POS or LGS Phase 3
Not yet recruiting NCT05068323 - Impact of Interictal Epileptiform Activity on Some Cognitive Domains in Newly Diagnosed Epileptic Patients N/A
Completed NCT03994718 - Creative Arts II Study N/A
Recruiting NCT04076449 - Quantitative Susceptibility Biomarker and Brain Structural Property for Cerebral Cavernous Malformation Related Epilepsy
Completed NCT00782249 - Trial Comparing Different Stimulation Paradigms in Patients Treated With Vagus Nerve Stimulation for Refractory Epilepsy N/A
Completed NCT03683381 - App-based Intervention for Treating Insomnia Among Patients With Epilepsy N/A
Recruiting NCT05101161 - Neurofeedback Using Implanted Deep Brain Stimulation Electrodes N/A
Active, not recruiting NCT06034353 - Impact of Pharmacist-led Cognitive Behavioral Intervention on Adherence and Quality of Life of Epileptic Patients N/A
Recruiting NCT05769933 - Bridging Gaps in the Neuroimaging Puzzle: New Ways to Image Brain Anatomy and Function in Health and Disease Using Electroencephalography and 7 Tesla Magnetic Resonance Imaging
Not yet recruiting NCT06408428 - Glioma Intraoperative MicroElectroCorticoGraphy N/A
Not yet recruiting NCT05559060 - Comorbidities of Epilepsy(Cognitive and Psychiatric Dysfunction)
Completed NCT02952456 - Phenomenological Approach of Epilepsy in Patients With Epilepsy
Completed NCT02646631 - Behavioral and Educational Tools to Improve Epilepsy Care N/A
Completed NCT02977208 - Impact of Polymorphisms of OCT2 and OCTN1 on the Kinetic Disposition of Gabapentin in Patients Undergoing Chronic Use Phase 4
Recruiting NCT02539134 - TAK-935 Multiple Rising Dose Study in Healthy Participants Phase 1
Terminated NCT02757547 - Transcranial Magnetic Stimulation for Epilepsy N/A
Completed NCT02491073 - Study to Evaluate Serum Free Thyroxine (FT4) and Free Triiodothyronine (FT3) Measurements for Subjects Treated With Eslicarbazeine Acetate (ESL) N/A