COgnitive Behavioural Therapy for Dissociative (Non-Epileptic) Seizures

A Randomised Controlled Trial

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The CODES trial is a randomised controlled trial funded by the National Institute for Health Research, UK.


It has been designed to find out whether adding in cognitive behavioural therapy to standardised medical care as a treatment for dissociative seizures provides a better outcome for patients compared to standardised medical care alone


The trial is registered at the International Standard Randomised Controlled Trials Network at


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The CODES TRIAL - Information for patients