Investigating the performance of Alcis devices for epilepsy treatment

EPISEEG - EPC Performance Investigation for StereoElectroEncephaloGraphy

Observational Alcis · NCT05223985

This study is testing how well Alcis devices work and their safety for people with drug-resistant focal epilepsy who are undergoing a specific brain procedure.

Quick facts

Study typeObservational
Enrollment74 (estimated)
Ages18 Months to 65 Years
SexAll
SponsorAlcis Industry-sponsored
Locations2 sites (Marseille and 1 other locations)
Trial IDNCT05223985 on ClinicalTrials.gov

What this trial studies

This multicentre observational study aims to collect data on the safety and performance of Alcis products used in stereo-electroencephalography (SEEG) for patients with drug-resistant focal epilepsy. It will gather preoperative, intraoperative, and follow-up data over a period of one year to assess clinical complications and functional outcomes. The findings will contribute to post-market surveillance and support clinical evaluations and publications regarding the devices' effectiveness in real-world settings.

Who should consider this trial

Good fit: Ideal candidates for this study are patients aged 18 months to 65 years with drug-resistant and disabling focal epilepsy who are undergoing SEEG exploration as part of their pre-surgical assessment.

Not a fit: Patients who do not have drug-resistant focal epilepsy or those unable to comply with study procedures may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of Alcis devices' safety and efficacy, potentially leading to improved treatment options for patients with epilepsy.

How similar studies have performed: Other studies have shown success in evaluating the performance of similar devices in epilepsy treatment, indicating a promising approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* To be included, patients must be:
* 18 months to 65 years
* Patient with drug-resistant and disabling focal epilepsy
* Informed and willing to sign an informed consent form approved by EC / For minors: if one of the parents cannot consent within the timeframe provided by the protocol, then only one parent's signature is required
* Affiliation to the social security or foreign regime recognized in France
* For prospective inclusion: Patient considered for SEEG exploration as part of pre-surgical assessment of epilepsy
* For ambispective inclusion:

  * Must have undergone an SEEG exploration with one ALCIS device before the date of the initiation visit
  * Follow-up visits (at least 12-month) must be prospective
  * Must have complete information available for each completed visit (demographics, preoperative information, implantation information, device details) \*.

Exclusion Criteria:

* • Not able to comply with the study procedures based on the judgment of the assessor (e.g. cannot comprehend study questions, inability to keep scheduled assessment times)

  * Any medical condition that could impact the study at investigator's discretion (e.g. allergy…)
  * Pregnant women (contraindication to SEEG exploration)
  * Adult subject to legal protection measure
  * Skull thickness inferior at 2 mm

Where this trial is running

Marseille and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Epilepsy
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.