High-purified cannabidiol efficacy and safety in a cohort of adult patients with various types of drug-resistant epilepsies - 07/10/23
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Abstract |
About 30% of patients with epilepsy are drug resistant. Lennox-Gastaut syndrome (LGS), Dravet syndrome (DS) and tuberous sclerosis complex (TSC) are diseases for which high-purified-cannabidiol (CBD) known as Epidiolex® (GW pharma) can be prescribed in add-on of other medications in case of drug-resistance. Currently, there are only a few recent data in the literature about the efficacy and safety of CBD in other forms of refractory epilepsies especially focal epilepsies in adults. We report retrospectively the experience of high-purified-CBD use in two French reference medical centers for epilepsy in various forms of drug-resistant epilepsy. We distinguished two groups of patients: group A with epileptic encephalopathies and group B with focal or multifocal epilepsy. Safety and efficacy (% of responder patients) were evaluated. Finally, 73 patients (51 in group A and 22 in group B) used high-purified CBD as an add-on treatment for their drug-resistant epilepsy. Patients in group A were significantly younger (P=0.0155), with a longer exposition of treatment (P=0.0497) than group B and with higher doses (P=0.0300). Respectively, 15 patients (29.4%) and five patients (22.7%) were responders during the follow-up period (P=0.552). The association with clobazam was more frequent in responders than in non-responder patients (16 patients [80%] versus four [20%]). The most frequent side effect was somnolence. At the end of follow-up, 15 patients in group A (29.4%) and nine patients in group B (40.1%) had stopped the high-purified-CBD treatment due to aggravation of seizure, absence of positive effects, or adverse events. This study showed no significant difference regarding the type of drug-resistant epilepsy and suggests that this treatment may be of interest for all types of drug-resistant epilepsy.
Le texte complet de cet article est disponible en PDF.Keywords : Cannabidiol, Epilepsy, Drug resistance, Efficacy, Safety
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