Status and phase
Conditions
Treatments
About
This is an open-label, multi-center study of carisbamate in adult and pediatric subjects with LGS, with single- and multiple-dose PK assessments from Days 1 through 73. There will be a Screening Period of up to 28 days and a Treatment Period of 87 days.
Full description
A total of 24 subjects are planned: 6 subjects in each of 4 cohorts: Cohort I (≥18 years), Cohort II (12 to <18 years), Cohort III (6 to <12 years), and Cohort IV (2 to <6 years).
For Cohorts I and II, PK assessments of carisbamate, S-enantiomer and its R-enantiomer plasma concentrations, will be conducted on Days 1, 2 and 3 of the single dose period at pre-dose and 0.5, 1, 1.5, 2, 4, 6, 8, 12, 24, and 48 hours after dosing and on Day 17 of the multiple-dose period at pre dose and 0.5, 1, 1.5, 2, 4, 6, 8, and 12 hours after dosing; trough samples will be collected on Days 45 and 73 of the dose-adjustment period.
For Cohort III, PK assessments of carisbamate, S-enantiomer and its R-enantiomer plasma concentrations will be conducted on Days 1, 2 and 3 of the single dose period at pre dose and 0.5, 1, 2, 4, 6, 8, 12, 24, and 48 hours after dosing and on Day 17 of the multiple-dose period at pre-dose and 2 hours after dosing; trough samples will be collected on Days 45 and 73 of the dose-adjustment period.
For Cohort IV, a sparse PK sampling approach will be used, and the time of PK sampling time will be based on the PK results from the other cohorts. A maximum of 2 to 4 time points on each day (1 and 17) will be collected.
Safety assessments include adverse event (AE) and concomitant medication reporting, clinical laboratory testing, vital sign measurements, 12 lead electrocardiograms (ECGs), physical examinations, and neurologic examinations.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
Diagnosis of LGS as evidenced by the following:
Male or female aged ≥2 years at the time of consent
Aged <11 years at the onset of LGS
Written informed consent signed by the subject or legal guardian prior to entering the study in accordance with the ICH GCP guidelines. Age appropriate assent will be obtained for children and adolescents. If the written informed consent is provided by the legal guardian because the subject is unable to do so, a written or verbal assent from the subject must also be obtained.
Receiving 1 to 3 concomitant AEDs at a stable dose for ≥30 days before Visit 1 (vagal nerve stimulation [VNS] and ketogenic diet, stable and ongoing for ≥30 days before Visit 1, do not count as AEDs)
In the Investigator's opinion, parents or caregivers must be able to report accurate seizure assessments during the screening and study periods and subjects must be able to ingest study drug
Body weight ≥8 kg for subjects enrolled in Cohort IV
Subjects with an implanted vagal nerve stimulator will be allowed if the vagal nerve stimulator was implanted at least 5 months prior to Visit 1 (Screening) and the stimulator parameters are not changed for 30 days prior to Visit 1 and for the duration of the study
Subjects following a ketogenic diet will be allowed as long as the diet has been stable for at least 30 days prior to Visit 1 (Screening) and will remain stable for the duration of the study.
Exclusion criteria
Primary purpose
Allocation
Interventional model
Masking
18 participants in 4 patient groups
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Data sourced from clinicaltrials.gov
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