GW Research Limited

The present invention relates to the use of cannabidiol (CBD) in the treatment of patients with childhood-onset epilepsy syndromes who are concurrently taking the antiepileptic drug clobazam. When CBD is used in combination with clobazam caution should be taken. The patient may need to be cautioned and/or monitored for side effects of a drug-drug interaction 5 between the two medications. In particular the patient should be cautioned and/or monitored for the occurrence of pneumonia. In such a situation the dose of either the CBD and/or the clobazam may be required to be reduced.

The present invention relates to crystalline forms of 6-hydroxy cannabidivarin (6-OH CBDV), methods for their production, and their use in therapy. The crystalline forms are easier to handle than other solid forms, such as glass amorphous material, and will useful in the manufacture of medicaments for the treatment of conditions associated with seizure.

The present invention relates to the use of cannabidiol (CBD) in the treatment of epilepsy which results from mutation of the KCNT1 gene. The CBD used is in the form of a highly purified extract of Cannabis such that the CBD is present at greater than 98% of the total extract (w/w) and the other components of the extract are characterised. In particular the cannabinoid tetrahydrocannabinol (THC) is present in an amount of from 0.02 to 0.1% (w/w). In an alternative embodiment the CBD may be in a synthetic form. In use the CBD may also be used concomitantly with one or more other anti-epileptic drugs (AED). The CBD may be formulated for administration separately, sequentially or simultaneously with one or more AED or the combination may be provided in a single dosage form. Where the CBD is formulated for administration separately, sequentially or simultaneously it may be provided as a kit or together with instructions to administer the one or more components in the manner indicated. It may also be used as the sole medication, i.e. as a monotherapy.

The present disclosure relates to the use of cannabidiol (CBD) for the treatment of seizures in patients aged about 1-2 years old. In particular the CBD appears particularly effective in reducing seizures in patients suffering with etiologies that include: Lennox-Gastaut Syndrome; Tuberous Sclerosis Complex; Dravet Syndrome; Doose Syndrome; Aicardi syndrome; CDKL5 and Dun15q.

The present invention relates to the use of cannabidiolic acid (CBDA) in the treatment of autism spectrum disorder (ASD) and ASD-associated disorders, such as Fragile X syndrome (FXS); Rett syndrome (RS); or Angelman syndrome (AS). CBDA has been shown to be particularly effective in improving cognitive dysfunction in rodent models of ASD, FXS, RS and AS. The CBDA is preferably substantially pure. It may take the form of a highly purified extract of cannabis such that the CBDA is present at greater than 95% of the total extract (w/w) and the other components of the extract are characterised. Alternatively, the CBDA is synthetically produced.

The present invention relates to a compound that is pharmaceutically active and methods of preparation thereof. The compound of the invention is 6-hydroxy-cannabidol-C4 (6-OH-CBD-C4). The compound of the invention is related to cannabidiol (CBD). CBD is a non-psychoactive cannabinoid which has been used to treat various diseases and disorders. While such treatments hold promise, there remains a need in the art for more effective treatments and this has been brought about by way of the compound of the invention.

The present disclosure relates to drug-containing particles comprising one or more cannabinoids and a porous solid carrier. In embodiments, the one or more cannabinoids are adsorbed onto and/or in a porous solid carrier. In embodiments, the drug-containing particles exhibit improved solubility and bioavailability, among other beneficial properties. Methods of preparation and pharmaceutical compositions are also described.

The present invention relates to the identification of a group of patients with epilepsy who will benefit from treatment with the compound cannabidiol (CBD), and to treatment of that group with CBD. The patients are identified by having variance in specific genes. Also provided is a method for identification of a group of patients with epilepsy at an increased risk of experiencing an adverse event when taking CBD.

The pharmaceutical industry is highly regulated to ensure the safety, efficacy, and quality of medicines and drug discolouration is one of the leading causes for drug recall. An object of the present invention is to provide an improved method of manufacturing cannabinoids for use in pharmaceuticals that is both stable and substantially pure. Such use of stable and substantially pure cannabinoids in pharmaceuticals will improve patient compliance to medication. The main steps of the method are decarboxylation, extraction, winterization and crystallisation.

The present disclosure relates to the use of cannabidiol (CBD) for the treatment of nocturnal snoring. In particular the CBD appears particularly effective in treating nocturnal snoring in children and young adults with epilepsy The disclosure further relates to the use of CBD in5 combinations with one or more anti-epileptic drugs (AEDs).