Not Yet RecruitingPhase 2

Efficacy of Probenecid on Cluster Seizures During Anti Seizure Medication Withdrawal in Presurgical Focal Epilepsy Video-EEG Monitoring

600 participantsStarted 2026-01

Plain-language summary

ProbCluster trial aims at making the proof of concept of antiseizure efficacy of the old antigout PBN in SC, in which Panx1 involvement is relevant on SC pathophysiology and in which efficient therapies are still lacking. The trial will be performed on patients with focal epilepsy in presurgical evaluation undergoing video-EEG monitoring, a setting characterized by a high risk of SC and an efficient video-EEG monitoring of seizures, reducing the risk of erroneous report based on patient home assessment. PBN is a good candidate for a repurposing in epilepsy, due to its brain penetration allowing Panx1 in situ blockade and of its good security profile. The repurposing process allows a faster, safer and cheaper development.

Who can participate

Age range6 Years – 50 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Patients between 6 and 50 years old * weighting \> 20 kg * With focal seizures epilepsy * Requiring video-EEG recording in Epilepsy Monitoring Units (EMU) for the presurgical evaluation of a focal epilepsy, with planned ASM withdrawal in order to precipitate seizure occurrence * Able to take an oral therapy * Ability to record the patient \> 12 hours after the second seizure of the cluster * Having received informed information about the study and having signed a consent form to participate in the study. Written consent of both holders of parental authority for minor patients. Exclusion Criteria: * Hypersensitivity to PBN or to any of the excipients (Microcrystalline cellulose, Hypromellose, Sodium carboxymethylamidon, Colloidal anhydrous silica, Magnesium stearate) * Impaired renal function (creatinine clearance \< 50 mL/min) * Lithiasis diathesis * Treatment by the following drugs: penicillins cephalosporins, acetylsalicylic acid, methotrexate, acetaminophen, naproxen, indomethacin, ketoprofen, meclofenamate, lorazepam, rifampicin, acyclovir, ganciclovir and zidovudine, sulfonamide, dyprophylline * Acute gout attack * Hyperuricemia secondary to cancer chemotherapy, radiotherapy or myeloproliferative neoplasia * Primary hyperuricemia due to overproduction of uric acid. * Pregnant or breast-feeding woman * Patient benefiting from legal protection Secondary exclusion criteria (before randomization) : \- Patient not randomized: Not experiencing at lea…

What they're measuring

Cessation of seizure recurrence in patients experiencing a cluster seizure

Timeframe: Time period from Day 0 to maximum Day 21

Trial details

NCT IDNCT07318870

SponsorFondation Ophtalmologique Adolphe de Rothschild

Sponsor typeNETWORK

Study typeINTERVENTIONAL

Primary completion2029-02

Contact for this trial

Amelie Yavchitz, Dr

+33148036454 ayavchitz@for.paris