TerminatedPhase 3

A Study to Test the Efficacy and Safety of Padsevonil as Treatment of Focal-onset Seizures in Adult Subjects With Drug-resistant Epilepsy

Stopped: Based on available data, UCB has decided to stop development of padsevonil as adjunctive treatment of focal-onset seizure

United States, Australia, Belgium232 participantsStarted 2019-03-06

Plain-language summary

The purpose of the study is to evaluate the efficacy, safety and tolerability of the 3 selected dose regimens of padsevonil (PSL) administered concomitantly with up to 3 anti-epileptic drugs (AEDs) compared with placebo for treatment of observable focal-onset seizures in subjects with drug-resistant epilepsy.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

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

Inclusion Criteria: * Diagnosis of focal epilepsy per 1989 International League Against Epilepsy (ILAE) criteria at least 3 years before study entry * Subject has failed to achieve seizure control with \>=4 tolerated and appropriately chosen prior antiepileptic drugs (AED), including past and ongoing treatment, that were individually optimized for adequate dose and duration. Prior discontinued AED treatment would need to be assessed by the Investigator considering the patient medical records and patient and/or caregiver interview. 'Prior AED' is defined as all past and ongoing AED treatments with a start date before the Screening Visit (Visit 1) * Average of \>= 4 spontaneous and observable focal seizures (type IA1 (i.e. focal aware), IB (i.e. focal impaired awareness), IC (i.e. focal to bilateral tonic-clonic)) per month * Current treatment with an individually optimized and stable dose of at least 1 and up to 3 AEDs for the 8 weeks prior to the Screening Visit with or without additional Vagus Nerve Stimulation (VNS) or other neurostimulation treatments Exclusion Criteria: * Subject has a history of or signs of generalized or combined generalized and focal epilepsy * Cluster seizures which are uncountable in the previous 8 weeks before study entry and during 4 weeks prospective baseline * Current treatment with carbamazepine, phenytoin, primidone, phenobarbital * Current treatment/ use of (non-AED) prescription, nonprescription, dietary (eg, grapefruit or passion fruit), …

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change in Log-transformed Observable Focal-onset Seizure Frequency From Baseline Over the 12-week Maintenance Period

Timeframe: From Baseline over the 12 Week Maintenance Period (up to Week 16)

Percentage of Participants With Treatment-Emergent Adverse Events (TEAEs)

Timeframe: From Baseline until Safety Follow-Up (up to Week 23)

Percentage of Participants With Treatment-Emergent Adverse Events (TEAEs) Leading to Study Withdrawal

Timeframe: From Baseline until Safety Follow-Up (up to Week 23)

Percentage of Participants With Treatment-Emergent Serious Adverse Events (SAEs)

Timeframe: From Baseline until Safety Follow-Up (up to Week 23)

Trial details

NCT IDNCT03739840

SponsorUCB Biopharma SRL

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2020-09-28

Results submitted2021-09-24

View on ClinicalTrials.gov More Drug-Resistant Epilepsy trials