Rare Epilepsy Network

 

two girls one sitting in wheelchair from rare epilepsy

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Rare Epilepsy Network logo

Epilepsy is the fourth most common neurological disease in the world, affecting over 3.4 million people in the United States.  Epilepsy is considered rare when the underlying cause affects less than 200,000 people in the U.S.

Epilepsy has many different causes, which include infections, autoimmune, genetic, metabolic, and structural. About half of people with epilepsy have an unknown cause. 

Many rare epilepsies take a long time to diagnose. Diagnosis may require advanced genetic testing, imaging, and other diagnostics. Genetic testing is now recommended for anyone, child or adult, who is not responding to anti-seizure medications.  

The cause of epilepsy is important to understand for improved care, long-term outcomes, and finding community and support. Getting a clear, accurate diagnosis can also reduce the chance for potentially harmful treatment. For example, some medication is not recommended for some causes of epilepsies. Some epilepsies are not responsive to anti-seizure medications. Some people with a rare epilepsy diagnosis may benefit from other non-medicine interventions including surgery, diet, and devices.

Rare epilepsy disorders can be complex, chronic, and include comorbidities beyond seizures – for example: developmental delays, behavior, communication, and mobility symptoms. Comprehensive care is important to address both seizure control and other non-seizure symptoms.  

Rare Epilepsy Network (REN) has a list of organizations that support individual rare epilepsy disorders and an A-Z list of epilepsy disorders

REN was founded in 2013 as a registry project through the Epilepsy Foundation, focused on building a first-of-its-kind, cross-disorder rare epilepsy registry. Today, the Rare Epilepsy Network is a consortium of over 150+ members and partners all committed to improving the lives and care of patients living with rare diagnoses through research.  

The Epilepsy Foundation is a proud member of the Rare Epilepsy Network alongside other epilepsy stakeholders. Learn more about rare epilepsies through REN. Become a member and sign up for the newsletter

If you or a loved one have a rare epilepsy diagnosis, REN’s member database has organizations specific to your diagnosis offering information, education, support, and community. Sometimes there are opportunities to participate in clinical trials and other research. Your individual experience will help scientists better understand this disease and help improve treatments and care toward finding a cure.  

Not every diagnosis has a dedicated patient advocacy group (PAG). If you have a rare epilepsy diagnosis, contact info@rareepilepsynetwork.org to help you connect with support and resources, and visit the resource section

The (Not So Rare) Epilepsies ECHO is a series of one-hour sessions. They are led by national faculty for healthcare practitioners on the front lines to improve their knowledge of rare epilepsies and practice of medicine.  

Established in 2013, the REN registry was a comprehensive database designed to collect and organize information about people with rare epilepsies, made possible through a $3M grant from the Patient-Centered Outcomes Research Institute (PCORI). The registry includes data on over 1,459 patients spanning 40 distinct rare epilepsy disorders. The data includes comorbidities, developmental milestones, seizure medications and side effects, seizure history, and more. The REN registry interactive dashboard reflects some of the patient and caregiver data collected.

The registry closed in 2018 but is accessible through the Rare Disease Cures Accelerator-Data and Analytics Platform (RDCA-DAP) portal. The platform includes not only REN data but also information on over 34 diseases, including Angelman Syndrome, CACNA1A, hnRNP, KIF1A, Kleefstra, LGS, Prader-Willi, Sturge-Weber, Tuberous Sclerosis, that overlap with rare epilepsy.​​​​​​​​

The REN registry also led to the publication of several critical studies:

Reviewed By:

Epilepsy Foundation Research

on Tuesday, February 25, 2025

Resources

Epilepsy Centers

Epilepsy centers provide you with a team of specialists to help you diagnose your epilepsy and explore treatment options.

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Epilepsy Medication

Find in-depth information on anti-seizure medications so you know what to ask your doctor.

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Epilepsy and Seizures Helpline

Call our Epilepsy and Seizures Helpline and talk with an epilepsy information specialist or submit a question online.

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Tools & Resources

Get information, tips, and more to help you manage your epilepsy.

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