Safety of Using NaviFUS System in Patients With Drug Resistant Epilepsy

Refractory Epilepsy Clinical Trial

Official title:

A Phase I, Two-stage, and Open Label Study to Evaluate the Safety and Tolerability of Using NaviFUS System in Patients With Drug Resistant Epilepsy

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03860298
• Other study ID #: NF-2018-01
• Status: Completed
• Phase: N/A
• Start date: June 17, 2019
• Est. completion date: October 14, 2020

Study information

• Verified date: June 2020
• Source: NaviFUS Corporation
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study is to evaluate the safety and the intracranial electroencephalography (iEEG) changes of using NaviFUS System for the treatment of patients with drug resistant epilepsy.

Description:

This is a phase I, two-stage, prospective, open label, single center, and single-arm study. Eligible patients will be enrolled through the process of informed consent then will receive NaviFUS treatment one cycle. The time interval for each treatment cycle is 3 days, including baseline/treatment and 3 days observation. The site of the NaviFUS exposure is where the future surgery will be removed. Concomitantly use of anti-epileptic drugs (AEDs) will be monitored and recorded in the case report form (CRF). A total of six patients will be divided into two stages of recruitment, the first stage will recruit two patients, the second stage will be four patients. When the first stage is accomplished, the data and safety monitoring board (DSMB) will review the study data and provide the recommendations regarding continuation, termination, or other modifications of the study based on evaluation of observed adverse effects of the intervention. The second stage will begin to conduct after the DSMB agrees to proceed. In this clinical trial, stereo-electroencephalography (SEEG) exploration will be carried out during long-term video-EEG monitoring and excitability/irritability in focal epileptogenic region and epileptogenic network will be analyzed.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 6
• Est. completion date: October 14, 2020
• Est. primary completion date: October 14, 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: 20 Years and older

Eligibility

Inclusion Criteria:

1. Male or female patients aged 20 years and older

2. Patients with drug resistant epilepsy (have failed treatment with at least two appropriate anti-epileptic drugs (AEDs) due to lack of efficacy) who hospitalized and underwent stereo-electroencephalography (SEEG) implantation for localization and delineation of epileptogenic focus for removing by surgery.

3. Seizure frequency is countable and available at least one month prior to study.

4. Willing and able to sign written informed consent and be able to comply with the study protocol for the duration of the study

Exclusion Criteria:

1. Patients with concurrent active psychiatric or mood disorders that in the opinion of the investigator would interfere with participation in the study

2. Patients have significant bleeding after SEEG implantation

3. Presence of pacemaker, implantable cardioverter-defibrillator (ICD), permanent medication pumps, cochlear implants, vagus nerve stimulation (VNS), or deep brain stimulation (DBS)

4. The skull bone area traversed by the sonication pathway is covered by scars, scalp disorders (e.g., eczema), or atrophy of the scalp

5. Clips or other metallic implanted objects in the FUS exposure path, except shunts

6. Abnormal coagulation profile: Platelet (PLT) < 100,000/µL, prothrombin time (PT) >14 sec or activated partial thromboplastin time (APTT) >36 sec, and international normalized ratio (INR) > 1.3

7. Pregnant or breast-feeding women

8. Coexisting medical problems of sufficient severity to limit compliance with the study

9. Known sensitivity/allergy to Magnetic Resonance Imaging (MRI) contrast agents or any of its components

10. Use of any recreational drugs or history of drug addiction or known history of substance or alcohol abuse

11. Patients has participated other clinical trial within 4 weeks of entering this study

12. Any other condition that, in the investigator's judgment, might affect study endpoints or might increase the risk to the patients or decrease the chance of obtaining satisfactory data needed to achieve the objectives of the study

Related Conditions & MeSH terms

• Drug Refractory Epilepsy
• Drug Resistant Epilepsy
• Epilepsy
• Epilepsy, Drug Refractory
• Epilepsy, Drug Resistant
• Epilepsy, Intractable
• Intractable Epilepsy
• Medication Resistant Epilepsy
• Refractory Epilepsy

Intervention

Device:
• NaviFUS System
Using NaviFUS System treatment for 10 minutes in drug resistant epilepsy. The site of the NaviFUS exposure is where the future surgery will be removed. Patients will concomitant use of anti-epileptic drugs (AEDs).

Locations

Country	Name	City	State
Taiwan	Taipei Veterans General Hospital	Taipei

Sponsors (2)

Lead Sponsor	Collaborator
NaviFUS Corporation	Taipei Veterans General Hospital, Taiwan

Country where clinical trial is conducted

Taiwan, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Safety and tolerability during study period using the NaviFUS System	The number and severity of adverse events	20 days
Secondary	Changes of iEEG	Changes of excitability/irritability in focal epileptogenic region and epileptogenic network of iEEG at post FUS treatment by NaviFUS System from baseline period	3 days post FUS treatment