FDA Approves New Therapy for Dravet Syndrome

By EH News Bureau On Jun 26, 2020

Fintepla labelling includes a boxed warning stating the drug is associated with valvular heart disease (VHD) and pulmonary arterial hypertension (PAH)

The US Food and Drug Administration approved Fintepla (fenfluramine), a Schedule IV controlled substance, for the treatment of seizures associated with Dravet syndrome in patients age 2 and older. Dravet syndrome is a life-threatening, rare and chronic form of epilepsy. It is often characterized by severe and unrelenting seizures despite medical treatment.

“Dravet syndrome is a debilitating disease that takes a tremendous toll on both patients and their families,” said Billy Dunn, MD, Director of the Office of Neuroscience in the FDA’s Center for Drug Evaluation and Research. “Fintepla offers an additional effective treatment option for the treatment of seizures associated with Dravet syndrome. The FDA will continue to work with companies on drug development for Dravet syndrome and other types of epilepsy.”

The effectiveness of Fintepla for the treatment of seizures associated with Dravet syndrome was demonstrated in two clinical studies in 202 subjects between ages 2 and 18. The studies measured the change from baseline in the frequency of convulsive seizures. In both studies, subjects treated with Fintepla had significantly greater reductions in the frequency of convulsive seizures during the trials than subjects who received placebo (inactive treatment). These reductions were seen within 3-4 weeks and remained generally consistent over the 14- to 15-week treatment periods.

Fintepla labelling includes a boxed warning stating the drug is associated with valvular heart disease (VHD) and pulmonary arterial hypertension (PAH). Because of these risks, patients must have cardiac monitoring using echocardiograms performed before treatment, every six months during treatment, and once three to six months after treatment is discontinued. If the echocardiogram shows signs of VHD, PAH, or other cardiac abnormalities, healthcare professionals must consider the benefits and risks of continuing treatment with Fintepla for the patient.

The most common adverse reactions in clinical studies were decreased appetite; drowsiness, sedation and lethargy; diarrhoea; constipation; abnormal echocardiogram; fatigue or lack of energy; ataxia (lack of coordination), balance disorder, gait disturbance (trouble with walking); increased blood pressure; drooling, salivary hypersecretion (saliva overproduction); pyrexia (fever); upper respiratory tract infection; vomiting; decreased weight; risk of falls; and status epilepticus.

The FDA granted this application Priority Review. Fintepla received Orphan Drug designation, which provides incentives to assist and encourage the development of drugs for rare diseases.

- Advertisement -

Dravet syndrome FDA approval Fintepla (fenfluramine)Orphan Drug designation pulmonary arterial hypertension (PAH)rare diseases valvular heart disease (VHD)