The therapeutic potential of medical marijuana and pure cannabidiol (CBD), an active substance in the cannabis plant, for neurologic conditions is highly debated. A series of articles published in Epilepsia, a journal of the International League Against Epilepsy (ILAE), examine the potential use of medical marijuana and CBD in treating severe forms of epilepsy such as Dravet syndrome.
In a case study, Dr. Edward Maa, Chief of the Comprehensive Epilepsy Program at Denver Health in Denver, Colo., details one mother's experience of providing medical marijuana to her child with Dravet syndrome. The adjunct therapy, a strain of cannabis high in CBD and tetrahydrocannabinol (THC) known as Charlotte's Web, was given in conjunction with the patient's antiepileptic drug regimen. The child's seizure frequency was reduced from 50 convulsions per day to 2 to 3 nighttime convulsions per month.
"Colorado is "ground zero" of the medical marijuana debate," says Dr. Maa. "As medical professionals it is important that we further the evidence of whether CBD in cannabis is an effective antiepileptic therapy." Currently, 21 states and the District of Columbia (DC) have legalized marijuana for medical purposes according to GOVERNING magazine.
A counter-point article summarizes current scientific evidence of CBD use in epilepsy and other neurological or psychiatric disorders including anxiety, schizophrenia and addiction. Previous studies found that THC, the primary psychoactive substance and CBD the main non-psychoactive ingredient in cannabis, display anticonvulsive properties in animals. However, this research was conducted in acute animal models and data is limited for chronic recurrent seizures. Recent studies claim medical marijuana with high ratios of CBD to THC are more effective in seizure control, but the data was anecdotal and not well controlled.
"While cannabis has been used to treat epilepsy for centuries, data from double-blind randomized, controlled trials of CBD or THC in epilepsy is lacking," explains Dr. Orrin Devinsky, Director of the Comprehensive Epilepsy Center at NYU Langone Medical Center in New York and Saint Barnabas Institute of Neurology and Neurosurgery in New Jersey. "Randomized controlled studies of CBD in targeted epilepsy groups, such as patients with Dravet or Lennox-Gastaut syndromes, are in the planning stages."
Dr. Maria Roberta Cilio, Director of Research in Pediatric Epilepsy of the Comprehensive Epilepsy Center at UCSF Benioff Children's Hospital in San Francisco, agrees, "There is a critical need for new therapies, especially for childhood-onset treatment-resistant epilepsies that impair quality of life and contribute to learning and behavioral disorders. Rigorous investigation of the safety and efficacy of medical marijuana or individual components such as CBD are necessary for patients with epilepsy before any conclusion is made. "
"There is much interest in the therapeutic potential of medical marijuana and CBD in treating epilepsy," say Drs. Gary Mathern and Astrid Nehlig, Editors-in-Chief of Epilepsia. "We would like your perspective on this important issue and ask that patients, clinicians, and medical professionals visit http://surveys.verticalresponse.com/a/show/1539433/ea840f4206/0 to provide feedback on the use of medical marijuana in epilepsy."
These studies are published in Epilepsia. Media wishing to receive a PDF of the articles may contact email@example.com.
Full citations: "The Case for Medical Marijuana in Epilepsy." Edward Maa and Paige Figi. Epilepsia; Published Online: May 22, 2014 (DOI: 10.1111/epi.12610).
URL Upon Publication: http://doi.wiley.com/10.1111/epi.12610
"Cannabidiol: Pharmacology and Potential Therapeutic Role in Epilepsy and Other Neuropsychiatric Disorders." Orrin Devinsky, Maria Roberta Cilio, Helen Cross, Javier Fernandez-Ruiz, Jacqueline French, Charlotte Hill, Russell Katz, Vincenzo Di Marzo, Didier Jutras-Aswad, William George Notcutt, Jose Martinez-Orgado, Philip J. Robson, Brian G. Rohrback, Elizabeth Thiele, Benjamin Whalley and Daniel Friedman. Epilepsia; Published Online: May 22, 2014 (DOI: 10.1111/epi.12631).
URL Upon Publication: http://doi.wiley.com/10.1111/epi.12631
"The Case for Assessing Cannabidiol in Epilepsy." Maria Roberta Cilio, Elizabeth A. Thiele and Orrin Devinsky. Epilepsia; Published Online: May 22, 2014 (DOI: 10.1111/epi.12635).
URL Upon Publication: http://doi.wiley.com/10.1111/epi.12635
Editorial: "From the Editors: Cannabidiol and Medical Marijuana for the Treatment Of Epilepsy." Gary Mathern, Astrid Nehlig and Michael Sperling. Epilepsia; Published Online: May 22, 2014 (DOI: 10.1111/epi.12647).
URL Upon Publication: http://doi.wiley.com/10.1111/epi.12647
Author Contact: Media wishing to speak with Dr. Edward Maa may contact Julie Lonborg with Denver Health at firstname.lastname@example.org. For Dr. Orrin Devinsky please contact Ryan Jaslow with NYU Langone Medical Center at Ryan.Jaslow@nyumc.org. Those wishing to speak with Dr. Maria Roberta Cilio should contact Karin Rush-Monroe with UCSF at Karin.email@example.com.
About the Journal
Epilepsia is the leading, most authoritative source for current clinical and research results on all aspects of epilepsy. As the journal of the International League Against Epilepsy, subscribers every month will review scientific evidence and clinical methodology in: clinical neurology, neurophysiology, molecular biology, neuroimaging, neurochemistry, neurosurgery, pharmacology, neuroepidemiology, and therapeutic trials. For more information, please visit http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1528-1167.
About the International League Against Epilepsy
The International League Against Epilepsy (ILAE) is the world's preeminent association of physicians and health professionals working toward a world where no person's life is limited by epilepsy. Since 1909 the ILAE has provided educational and research resources that are essential in understanding, diagnosing and treating persons with epilepsy. The ILAE supports health professionals, patients, and their care providers, governments, and the general public worldwide by advancing knowledge of epilepsy.
Wiley is a global provider of content-enabled solutions that improve outcomes in research, education, and professional practice. Our core businesses produce scientific, technical, medical, and scholarly journals, reference works, books, database services, and advertising; professional books, subscription products, certification and training services and online applications; and education content and services including integrated online teaching and learning resources for undergraduate and graduate students and lifelong learners.
Founded in 1807, John Wiley & Sons, Inc. (NYSE: JWa, JWb), has been a valued source of information and understanding for more than 200 years, helping people around the world meet their needs and fulfill their aspirations. Wiley and its acquired companies have published the works of more than 450 Nobel laureates in all categories: Literature, Economics, Physiology or Medicine, Physics, Chemistry, and Peace. Wiley's global headquarters are located in Hoboken, New Jersey, with operations in the U.S., Europe, Asia, Canada, and Australia. The Company's website can be accessed at http://www.wiley.com.
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