EP0213
EP0213
Open-Label, Single-Arm, Phase 3 Study to Evaluate Safety, Tolerability, and Pharmacokinetics of Fenfluramine (Hydrochloride) in Infants 1 Year to Less Than 2 Years of Age With Dravet Syndrome
Brief summary
The primary purpose of this study is evaluate the safety and tolerability of fenfluramine hydrochloride (HCl) 0.2 to 0.8 mg/kg/day in infants 1 year to less than 2 years of age with Dravet syndrome.
Medical Condition
Dravet Syndrome
Min. Age
1
Years
Max. Age
23
Months
Who Can Join?
All
Status
Recruiting
Inclusion criteria
Participant is ≥1 to <2 years of age as of the day of the first administration of study drug
Participant has a documented diagnosis or likely diagnosis of Dravet syndrome according to the International League Against Epilepsy (ILAE) criteria and as agreed by the Epilepsy Study Consortium (ESC)
Participant must be currently receiving ≥1 concomitant anti seizure medication (ASM) at a stable dose for ≥4 weeks prior to the Screening Visit and is expected to remain stable throughout the study. Rescue medications for seizures are not counted towards the total number of ASMs
Participant must have drug resistant epilepsy as defined as a history of failure of adequate trials of 2 tolerated, appropriately chosen and used antiepileptic drug schedules (whether as monotherapies or in combination) to achieve sustained seizure freedom
Participants must have ≥1 countable motor seizures (CMS) during the Baseline Period. The CMS include distinct seizures of generalized tonic-clonic, bilateral clonic, focal motor, bilateral tonic, atonic (drop), bilateral tonic/atonic, or focal to bilateral tonic-clonic type. If the participant fails to have ≥1 qualifying seizures in 28 days, the Baseline Period may be extended by an additional 14 days with Sponsor approval. Participants with an extended Baseline Period must still have ≥1 CMS in the 28 days immediately prior to the day of the first administration of study drug
Body weight is ≥8 kg
Males and females
Exclusion criteria
Participant has a known hypersensitivity to fenfluramine hydrochloride (HCl) or any of the excipients in the study drug
Participant has an exclusionary cardiovascular or cardiopulmonary abnormality based on echocardiogram (ECHO), electrocardiogram (ECG), or physical examination and is not approved for entry by the central cardiac reader
Participant has a diagnosis of pulmonary arterial hypertension
Participant has a clinically significant medical condition, including chronic obstructive pulmonary disease, interstitial lung disease, or portal hypertension, or has had clinically relevant symptoms or a clinically significant illness currently or in the 4 weeks prior to the Screening Visit, other than epilepsy, that in the opinion of the Investigator would negatively impact study participation, collection of study data, or pose a risk to the participant
Participant has current or past history of cardiovascular or cerebrovascular disease, such as cardiac valvulopathy, myocardial infarction or stroke, severe ventricular arrhythmias, or clinically significant structural cardiac abnormality, including but not limited to mitral valve prolapse, atrial or ventricular septal defects, patent ductus arteriosus, and patent foramen ovale with reversal of shunt. (Note: Patent foramen ovale or a bicuspid aortic valve are not considered exclusionary.)
Participant has a current or past history of glaucoma
Participant has moderate to severe hepatic impairment, assessed based on the Child-Pugh classification system
Participant has moderate to severe renal impairment (estimated glomerular filtration rate <50 mL/min/1.73 m^2 calculated with the updated Bedside Schwartz equation for children
QT interval corrected (QTc) >450 msec
Participant is taking >4 concomitant ASMs
Participant is receiving concomitant treatment with cannabidiol other than Epidiolex/Epidyolex or is being actively treated with tetrahydrocannabinol (THC) or any marijuana product for any condition
Participant is receiving concomitant therapy with any of the following: centrally-acting anorectic agents; monoamine-oxidase inhibitors; any centrally-acting compound with clinically appreciable amount of serotonin agonist or antagonist properties, including serotonin reuptake inhibition; other centrally-acting noradrenergic agonists, including atomoxetine; or cyproheptadine. Disallowed medications are subject to washout of ≥5 half-lives before the first day of study drug administration
Participant is currently receiving another investigational product(s) or has received another investigational product within 30 days or within <5 times the half-life of that investigational product, whichever is longer, prior to the Screening Visit
Participant has previously been treated with Fintepla (fenfluramine HCl) prior to the Screening Visit
Study Medication Description
Study Medication:
Fintepla
Other Descriptive Name:
fenfluramine hydrochloride
No
Comparator:
No
Refer to a friend
Study Dates
May 2024
Actual Start Date of Enrollment
January 2027
Planned Study Completion Date
General Information
Study ID:
EP0213
EudraCT Number:
2021-006882-39
CT.gov Number:
NCT06118255
Phase:
Phase 3