Epilepsy | Disease Landscape and Forecast | G7 | 2020

Epilepsy, which afflicts approximately 4.7 million people in the major markets according to DRG epidemiology, is a heterogeneous condition requiring individualized treatment based largely on a patient’s seizure syndrome and seizure type. The epilepsy therapy market already comprises more than 25 antiepileptic drugs (AEDs), most of them generic, that can be effective for many patients. In this challenging market environment, most developers are targeting underserved, orphan pediatric epilepsy populations, or they are developing reformulations of existing products as rescue therapies as a path to differentiation. Understanding the trajectory of the established epilepsy market and the evolving competitive landscape in niche segments is critical for marketers of both current and emerging brands to retain market share or carve out a clinical role.

Questions Answered:

  • What is the current state of treatment in epilepsy across the G7, and what needs are left unfulfilled by approved AEDs?
  • What are the market opportunities and sales potential for agents targeting treatment-refractory focal epilepsy (e.g., cenobamate, padsevonil) and for agents targeting orphan epilepsy subpopulations (e.g., Epidiolex, Fintepla)?
  • What clinical role will recently approved (e.g., Nayzilam, Valtoco) and emerging acute rescue therapies (e.g., Libervant) play in the epilepsy market?
  • How will neurologists differentiate among current and emerging third-generation AEDs, and which of these agents will enjoy the most clinical and commercial success in the face of strong generics competition from first- and second-generation AEDs?

Markets covered: United States, France, Germany, Italy, Spain, United Kingdom, Japan.

Primary research: Approximately 20 country-specific interviews with thought-leading neurologists, supported by survey data collected for this content and other DRG research.

Epidemiology: Diagnosed prevalence of epilepsy by country, segmented by generalized and partial-onset seizures; drug-treated cases.

Emerging therapies: Phase III/PR: 5 drugs; coverage of select II products.

Market forecast features: Patient-based market forecast extending through 2028, segmented by brands/generics.

Key companies: Aquestive Therapeutics, Bial, Eisai, GW Pharmaceuticals, Lundbeck, Marinus Pharmaceuticals, Neurelis, Sanofi, SK Biopharmaceuticals, Sunovion, UCB, Zogenix.

Key drugs: Levetiracetam, lamotrigine, carbamazepine, valproates, Vimpat (lacosamide), Aptiom/Zebinix (eslicarbazepine acetate), Fycompa (perampanel), Briviact (brivaracetam), Epidiolex (CBD), Fintepla (fenfluramine), YKP-3089 (cenobamate), UCB-0942 (padsevonil), Nayzilam (intranasal midazolam), Libervant (buccal diazepam), Valtoco (intranasal diazepam).