A Study to Investigate JNJ-40411813 in Combination With Levetiracetam or Brivaracetam in Epilepsy
A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Multicenter Study to Evaluate the Efficacy, Safety, and Tolerability of JNJ-40411813 as Adjunctive Therapy in Subjects With Focal Onset Seizures With Suboptimal Response to Levetiracetam or Brivaracetam
3 other identifiers
interventional
110
8 countries
69
Brief Summary
The purpose of this study is to evaluate the efficacy of up to 3 dose levels of adjunctive JNJ-40411813 compared to placebo based on the time to baseline monthly seizure count in participants with focal onset seizures who are receiving levetiracetam or brivaracetam and up to 3 other anti-epileptic drugs (AEDs) (double-blind treatment period) and to evaluate the long-term efficacy and safety of adjunctive therapy with JNJ-40411813 in participants with epilepsy (open-label extension \[OLE\] period).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started May 2021
69 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 24, 2021
CompletedFirst Posted
Study publicly available on registry
April 8, 2021
CompletedStudy Start
First participant enrolled
May 18, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 8, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
February 8, 2024
CompletedResults Posted
Study results publicly available
July 3, 2025
CompletedJuly 3, 2025
June 1, 2025
2.7 years
March 24, 2021
February 4, 2025
June 13, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Cohort 1 and 2: Time to Baseline Monthly Seizure Count up to the End of the 12-week Double-blind (DB) Treatment Period
Time (in days) to baseline monthly seizure count was defined as the number of days until the participants cumulative seizure count during the DB period was equal to their baseline monthly seizure count. The baseline monthly seizure count was defined as the number of observable focal onset seizures occurred during the 8-week baseline period (Day -56 to -1), multiplied by 28/XBL, where XBL was the number of days comprising the participants baseline period. Observable focal onset seizures included focal aware seizures with motor signs, focal impaired awareness seizures and focal to bilateral tonic-clonic seizures. Focal aware seizures without motor signs, myoclonic, or other generalized seizures was not counted towards baseline monthly seizure count. Cluster seizures were counted as a single seizure. Kaplan-Meier method was used for the analysis.
From DB period Day 1 up to Day 85
Secondary Outcomes (21)
Cohort 1 and 2: Percent Reduction in the Open Label Extension (OLE) Period Monthly Seizure Rate
From OLE baseline (Day 1 of OLE) up to 24 months after start of OLE (the actual OLE starting time varied for each participant)
Cohort 1 and 2: Number of Participants With Seizure Freedom at the End of OLE Period
From OLE baseline (Day 1 of OLE) up to 24 months after start of OLE (the actual OLE starting time varied for each participant)
Cohort 1 and 2: Number of Participants With at Least 50 Percent (%) Reduction (Response) in the OLE Monthly Seizure Count
From OLE baseline (Day 1 of OLE) up to 24 months after start of OLE (the actual OLE starting time varied for each participant)
OLE Period: Cohort 1 and 2: Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)
From OLE baseline (Day 1 of OLE) up to 5 days after last dose of OLE period (5 days + 24 months after start of OLE) (the actual OLE starting time varied for each participant)
OLE Period: Cohort 1 and 2: Number of Participants With Treatment-emergent (TE) Clinically Important Changes in Vital Signs
From OLE baseline (Day 1 of OLE) up to 24 months + 5 days after start of OLE (the actual OLE starting time varied for each participant)
- +16 more secondary outcomes
Study Arms (2)
JNJ-40411813
EXPERIMENTALParticipants will receive JNJ-40411813 twice a day (bid) up to 12 weeks in double blind period. Up to 3 different doses (low, medium, high) of JNJ-40411813 will be administered in this study. Participants will also receive concomitant anti-epileptic drugs (AEDs) one of which must include levetiracetam or brivaracetam. Immediately after the last study drug intake by the participants in the double-blind period, participants will enter into a 2-year open label extension (OLE) period and continue receiving JNJ-40411813 as well as the AEDs during OLE period.
Placebo
PLACEBO COMPARATORParticipants will receive JNJ-40411813 matching placebo (bid) up to 12 weeks. Participants will also receive concomitant AEDs one of which must include levetiracetam or brivaracetam during double blind period. Participants who had been receiving placebo in double blind period will start with the JNJ-40411813 dose in the OLE period.
Interventions
Eligibility Criteria
You may qualify if:
- Body mass index (BMI) between 18 and 35 kilogram per meter square (kg/m\^2, inclusive (BMI = weight/height\^2). Minimum body weight should be 40-kilogram (kg)
- Established diagnosis of focal epilepsy, for at least 1 year using the International League Against Epilepsy (ILAE) criteria. Participants should not be enrolled if they are known to have had fewer than 3 or more than 100 seizures in any monthly period in the past 6 months. It is preferred that participants have experience in maintaining a seizure e-diary
- Must have had a neuroimaging procedure within 10 years, including a computed tomography (CT) scan or magnetic resonance imaging (MRI), that excluded a progressive neurologic disorder; these procedures may be performed within the 8-week baseline period
- Cohort 1: Current treatment with at least 1 and up to 4 anti-epileptic drugs (AEDs) (including levetiracetam), administered at stable dosage(s) for at least 1 month before screening, and no new AEDs added for the previous 2 months; these AEDs must remain unchanged throughout the pretreatment and double-blind treatment periods (with the exception of dosage reductions of concomitant AEDs because of suspected elevated AED levels or side effects) Cohort 2 and beyond: Current treatment with at least 1 and up to 4 AEDs (including levetiracetam or brivaracetam), administered at the appropriate dosage(s) and for a sufficient treatment period before screening. These AEDs must remain unchanged throughout the pretreatment and double-blind treatment periods (with the exception of dosage reductions of concomitant AEDs because of suspected elevated AED levels or side effects). Important note: screening of participants receiving brivaracetam will start when enrolling for Cohort 2
- Currently showing inadequate response to levetiracetam, administered at the appropriate dosage(s) and for a sufficient treatment period, based on the judgment of the investigator
- Healthy based on clinical laboratory tests, physical examination, medical history, vital signs, and 12-lead ECG
- Men or women between 18 and 69 years old
You may not qualify if:
- Have a generalized epileptic syndrome
- Diagnosis of Lennox-Gastaut Syndrome
- Currently experiencing seizures that cannot be counted accurately
- History of any current or past nonepileptic seizures, including psychogenic seizures
- Known allergies, hypersensitivity, or intolerance to placebo, JNJ-40411813 or its excipients
- Current treatment with vagus nerve stimulation, deep brain and cortical stimulation for 1 year or less
- Planned epilepsy surgery within the next 6 months or completed epilepsy surgery less than (\<) 6 months ago
- Current treatment with vigabatrin
- History of malignancy within 5 years before screening (exceptions are squamous and basal cell carcinomas of the skin and carcinoma in situ of the cervix, or malignancy, which is considered cured with minimal risk of recurrence)
- Current or past (within the past year) major psychotic disorder, such as schizophrenia, bipolar disorder, or other psychotic conditions, recent (within the past 6 months) interictal psychosis, and major depressive disorder (MDD) with psychotic features
- Exacerbation of MDD within the past 6 months; antidepressant use is allowed
- Has a current or recent history of clinically significant suicidal ideation within the past 6 months, corresponding to a score of 4 (active suicidal ideation with some intent to act, without specific plan) or 5 (active suicidal ideation with specific plan and intent) for ideation on the Columbia Suicide Severity Rating Scale (C-SSRS), or a history of suicidal behavior within the past 1 year, as validated by the CSSRS at screening
- Has a history of at least mild drug or alcohol use disorder according to Diagnostic and Statistical Manual of Mental Disorders (5th edition) (DSM-5) criteria within 1 year before Screening
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (69)
Tucson Neuroscience Research
Tucson, Arizona, 85710, United States
Research Institution of Orlando, LLC
Orlando, Florida, 32806, United States
Accel Research Sites
Port Orange, Florida, 32127, United States
Maine Medical Center
Scarborough, Maine, 04074, United States
Mid-Atlantic Epilepsy and Sleep Center
Bethesda, Maryland, 20817, United States
Thomas Jefferson University Hospital
Philadelphia, Pennsylvania, 19107, United States
University of Virginia
Charlottesville, Virginia, 22903, United States
AZ Sint-Jan
Bruges, 8000, Belgium
Cliniques Universitaires Saint Luc
Brussels, 1200, Belgium
UZ Antwerpen
Edegem, 2650, Belgium
Az Groeninge
Kortrijk, 8500, Belgium
UZ Leuven
Leuven, B-3000, Belgium
CHU UCL Namur - Site Godinne
Yvoir, 5530, Belgium
Vivantes Humboldt Klinikum
Berlin, 13509, Germany
Krankenhaus Mara - Bethel
Bielefeld, 33617, Germany
Universitatsklinikum Bonn
Bonn, 53127, Germany
Universitaetsklinik Erlangen
Erlangen, 91054, Germany
Universitaetsklinikum Frankfurt
Frankfurt, 60590, Germany
Diakonie Kork - Epilepsiezentrum
Kehl-Kork, 77694, Germany
Universitaetsklinikum Giessen und Marburg GmbH
Marburg, 35043, Germany
Centrum Medyczne Neuromed Sp z o. o.
Bydgoszcz, 85-163, Poland
Copernicus Podmiot Leczniczy Sp. z o.o
Gdansk, 80-803, Poland
MA LEK AM Maciejowscy Spolka Cywilna Centrum Terapii SM
Katowice, 40 571, Poland
NEURO MEDIC Janusz Zbrojkiewicz Poradnia Wielospecjalistyczna
Katowice, 40 686, Poland
NZOZ Wielospecjalistyczna Poradnia Lekarska 'Synapsis'
Katowice, 40-123, Poland
Specjalistyczne Gabinety Lekarskie
Krakow, 31 156, Poland
Centrum Leczenia Padaczki i Migreny NZOZ
Krakow, 31 209, Poland
Centrum Opieki Zdrowotnej Orkan Med Stec Michalska sj
Ksawerów, 95 054, Poland
Clinical Best Solutions Sp. z o.o., Sp. K.
Lublin, 20-078, Poland
Twoja Przychodnia - Centrum Medyczne Nowa Sol
Nowa Sól, 67-100, Poland
Clinical Research Center sp z o o MEDIC R s k
Poznan, 61 731, Poland
NZOZ NEURO KARD Ilkowski i Partnerzy Sp Partnerska Lekarzy
Poznan, 61 853, Poland
MTZ Clinical Research Powered by Pratia
Warsaw, 02-172, Poland
Neurosphera
Warsaw, 02-952, Poland
Institute of Psychiatry and Neurology
Warsaw, 02-957, Poland
Centrum Medyczne Oporow
Wroclaw, 52 416, Poland
ProNeuro Centrum Medyczne
Żory, 44-240, Poland
Republic Clinical Hospital
Kazan', 420064, Russia
Research Medical Center Your Health
Kazan', 420097, Russia
Specialized clinical psychiatric hospital #1
Krasnodar, 350007, Russia
Clinical City Hospital #1
Moscow, 119049, Russia
Nizny Novgorod clinical psychiatric hospital 1
Nizny Novgorod, 603155, Russia
Psychoneurological Dispensary of Frunzensky District
Saint Petersburg, 190013, Russia
St-Petersburg Bekhterev Psychoneurological Research Institute
Saint Petersburg, 192109, Russia
SHI 'Saratov City Clinical Hospital 2 n.a V.I. Razumovsky
Saratov, 410028, Russia
Smolensk Regional Clinical Hospital
Smolensk, 214018, Russia
Yaroslavl State Medical University
Yaroslavl, 150000, Russia
Chungnam National University Hospital
Daejeon, 35015, South Korea
Seoul National University Hospital
Seoul, 03080, South Korea
Severance Hospital Yonsei University Health System
Seoul, 03722, South Korea
Konkuk University Medical Center
Seoul, 05030, South Korea
Asan Medical Center
Seoul, 05505, South Korea
Samsung Medical Center
Seoul, 06351, South Korea
Hosp. Del Mar
Barcelona, 08003, Spain
Hosp Univ Vall D Hebron
Barcelona, 08035, Spain
Hosp Clinic de Barcelona
Barcelona, 08036, Spain
Hosp. de La Santa Creu I Sant Pau
Barcelona, 08041, Spain
Hosp. Univ. de La Princesa
Madrid, 28006, Spain
Hosp Regional Univ de Malaga
Málaga, 29010, Spain
Centro Neurologia Avanzada Sevilla
Seville, 41013, Spain
Hosp. Mutua Terrassa
Terrassa, 08222, Spain
Centro de Inv. Avanzada Neurociencias
Zaragoza, 50001, Spain
Ce 'Dnipropetrovsk Regional Clinical Hospital N.A. Mechnikov' of Dnipropetrovsk Rc
Dnipro, 49005, Ukraine
Medical Center of Private Enterprise Neuron
Kharkiv, 61091, Ukraine
Cnce of Lviv Regional Council 'Lviv Regional Clinical Hospital'
Lviv, 79010, Ukraine
Mnpe 'Regional Clinical Psychiatric Hospital of Kirovohrad Regional Council'
Nove Settlement, 25491, Ukraine
Mnce 'Ternopil Regional Clinical Psychoneurology Hospital' of Trb
Ternopil, 46027, Ukraine
Llc Diamed Medical Center
Uzhhorod, 88000, Ukraine
Cnpe 'Vinnytsia Regional Clinical Psycho-Neurological Hospital N.A. Ac. O.I. Yushchenko' of Vrc
Vinnytsia, 21037, Ukraine
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Executive Medical Director Neuro
- Organization
- Janssen Research & Development, LLC
Study Officials
- STUDY DIRECTOR
Janssen Research & Development, LLC Clinical Trial
Janssen Research & Development, LLC
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 24, 2021
First Posted
April 8, 2021
Study Start
May 18, 2021
Primary Completion
February 8, 2024
Study Completion
February 8, 2024
Last Updated
July 3, 2025
Results First Posted
July 3, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will share
The data sharing policy of the Janssen Pharmaceutical Companies of Johnson \& Johnson is available at www.janssen.com/clinicaltrials/ transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu