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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT01866111
Registration number
NCT01866111
Ethics application status
Date submitted
28/05/2013
Date registered
31/05/2013
Date last updated
29/04/2022
Titles & IDs
Public title
A Double-Blind, Randomized, Placebo-Controlled, Phase 2 Trial of YKP3089 as Adjunctive Therapy in Subjects With Partial Onset Seizures
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Scientific title
A Multicenter, Double-Blind, Randomized, Placebo-Controlled, Dose-Response Trial of YKP3089 as Adjunctive Therapy in Subjects With Partial Onset Seizures, With Optional Open-Label Extension
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Secondary ID [1]
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YKP3089C017
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Partial Epilepsy
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Condition category
Condition code
Neurological
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Epilepsy
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Neurological
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Other neurological disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Placebo comparator: Placebo - Placebo
Experimental: YKP3089 Low Dose - YKP3089 Low Dose
Experimental: YKP3089 Medium Dose - YKP3089 Medium Dose
Experimental: YKP3089 High Dose - YKP3089 High Dose
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Percent Change From Baseline in Partial-onset Seizure Frequency Per 28 Days
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Assessment method [1]
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Percent change in complex partial and/or secondarily generalized and/or simple partial motor seizure frequency per 28 days (average 28-day seizure rate) in each treatment group during the double-blind period relative to the pretreatment baseline.
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Timepoint [1]
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baseline and 18 weeks
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Secondary outcome [1]
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50% Responder Rate
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Assessment method [1]
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Percentage of patients achieving a 50% or more reduction from baseline in partial seizure frequency during the double-blind treatment period
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Timepoint [1]
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18 weeks
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Eligibility
Key inclusion criteria
* Weight at least 40 kg
* A diagnosis of partial epilepsy according to the International League Against Epilepsy's Classification of Epileptic Seizures. Diagnosis should have been established by clinical history and an electroencephalogram (EEG) that is consistent with localization related epilepsy; normal interictal EEGs will be allowed provided that the subject meets the other diagnosis criterion (ie, clinical history)
* Have uncontrolled partial seizures despite having been treated with at least 1 AED within approximately the last 2 years
* During the 8-week baseline period, subjects must have at least 8 partial seizures including only simple partial seizures with motor component, complex partial seizures, or secondarily generalized seizures without a seizure-free interval of greater than 25 days any time during the 8 weeks baseline. Subjects must have at least 3 of these partial seizures during each of the two consecutive 4-week segments of the baseline period
* Currently on stable antiepileptic treatment regimen.
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Minimum age
18
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Maximum age
70
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* A history of nonepileptic or psychogenic seizures
* Presence of only nonmotor simple partial seizures or primary generalized epilepsies
* Presence or previous history of Lennox-Gastaut syndrome
* An active CNS infection, demyelinating disease, degenerative neurologic disease, or any CNS disease deemed to be progressive during the course of the study that may confound the interpretation of the study results
* Any clinically significant psychiatric illness, psychological, or behavioral problems that, in the opinion of the Investigator, would interfere with the subject's ability to participate in the study
* History of alcoholism, drug abuse, or drug addiction within the past 2 years
* History of status epilepticus within 3 months of Visit 1
* A "yes" answer to Question 1 or 2 of the C-SSRS (Baseline/Screening version) Ideation Section in the past 6 months or a "yes" answer to any of the Suicidal Behavior Questions in the past 2 years
* More than 1 lifetime suicide attempt
* Participation in any other trials involving an investigational product or device within 30 days of screening (or longer, as required by local regulations)
* A history of any previous exposure to YKP3089
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 2
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
31/07/2013
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
31/10/2021
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Sample size
Target
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Accrual to date
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Final
437
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Recruitment in Australia
Recruitment state(s)
NSW,VIC
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Recruitment hospital [1]
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Institute of Neurological Sciences, Prince of Wales Hospital - Randwick
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Monash Medical Centre - Clayton
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St. Vincent's Hospital (Melbourne) - Fitzroy
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Epilepsy Research Centre, Melbourne Brain Centre - Heidelberg
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Recruitment hospital [5]
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The Royal Melbourne Hospital - Melbourne
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Recruitment postcode(s) [1]
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2031 - Randwick
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Recruitment postcode(s) [2]
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3168 - Clayton
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Recruitment postcode(s) [3]
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3065 - Fitzroy
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Recruitment postcode(s) [4]
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3084 - Heidelberg
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Recruitment postcode(s) [5]
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3050 - Melbourne
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Recruitment outside Australia
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United States of America
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Plovdiv
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Ostrava
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Praha 4
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Bernau bei Berlin
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Germany
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Bielefeld
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Khon Kaen
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Kharkiv
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Odessa
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Ukraine
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Uzhgorod
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Funding & Sponsors
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Commercial sector/industry
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Name
SK Life Science, Inc.
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Ethics approval
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Summary
Brief summary
This is a multicenter, double-blind, randomized, placebo-controlled dose response study, with an 8-week prospective baseline and an 18 week double-blind treatment period (including a 6-week titration phase and 12 week maintenance phase), followed by a 3-week blinded study drug taper period (for subjects leaving the study) or a 2-week blinded conversion period (for subjects who will participate in the open-label extension). The primary objective of this study is to determine the effective dose range of YKP3089 as adjunctive therapy for the treatment of partial seizures. The trial will also evaluate the safety and tolerability of YKP3089 in the partial epilepsy population.
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Trial website
https://clinicaltrials.gov/study/NCT01866111
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Trial related presentations / publications
Klein P, Aboumatar S, Brandt C, Dong F, Krauss GL, Mizne S, Sanchez-Alvarez JC, Steinhoff BJ, Villanueva V. Long-term Efficacy and Safety From an Open-Label Extension of Adjunctive Cenobamate in Patients With Uncontrolled Focal Seizures. Neurology. 2022 Sep 5;99(10):e989-e998. doi: 10.1212/WNL.0000000000200792. Rosenfeld WE, Nisman A, Ferrari L. Efficacy of adjunctive cenobamate based on number of concomitant antiseizure medications, seizure frequency, and epilepsy duration at baseline: A post-hoc analysis of a randomized clinical study. Epilepsy Res. 2021 May;172:106592. doi: 10.1016/j.eplepsyres.2021.106592. Epub 2021 Feb 18. Krauss GL, Klein P, Brandt C, Lee SK, Milanov I, Milovanovic M, Steinhoff BJ, Kamin M. Safety and efficacy of adjunctive cenobamate (YKP3089) in patients with uncontrolled focal seizures: a multicentre, double-blind, randomised, placebo-controlled, dose-response trial. Lancet Neurol. 2020 Jan;19(1):38-48. doi: 10.1016/S1474-4422(19)30399-0. Epub 2019 Nov 14. Erratum In: Lancet Neurol. 2020 Mar;19(3):e3. doi: 10.1016/S1474-4422(20)30038-7. Bialer M, Johannessen SI, Levy RH, Perucca E, Tomson T, White HS. Progress report on new antiepileptic drugs: A summary of the Twelfth Eilat Conference (EILAT XII). Epilepsy Res. 2015 Mar;111:85-141. doi: 10.1016/j.eplepsyres.2015.01.001. Epub 2015 Jan 19.
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Public notes
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Contacts
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Type
Other Details
Attachment
Study protocol
https://cdn.clinicaltrials.gov/large-docs/11/NCT01866111/Prot_000.pdf
Statistical analysis plan
https://cdn.clinicaltrials.gov/large-docs/11/NCT01866111/SAP_001.pdf
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results are available at
https://clinicaltrials.gov/study/NCT01866111
Download to PDF