Pioneering clinical trial to treat psychosis in Parkinson’s patients using cannabidiol

A pioneering clinical trial will examine making use of cannabidiol (CBD) – a substance discovered in the marijuana plant – in individuals with Parkinson’s-associated psychosis.

Parkinson’s UK, the biggest charitable funder of Parkinson’s research study in Europe, is partnering with researchers at King’s College London and investing £1.2 million in the stage II clinical trial.

This is the very first massive trial which will intend to offer initial proof for the security and effectiveness of CBD to ease the signs of Parkinson’s-associated psychosis, characterised by hallucinations and deceptions.

The three-and-a-half-year job belongs to the Parkinson’s Virtual Biotech, led by Parkinson’s UK, which is plugging the financing space in drug advancement and fast-tracking the jobs with the best clinical capacity, to change the lives of individuals with Parkinson’s. Unlike conventional biotech business, client concerns and participation are the main chauffeurs of the Parkinson’s Virtual Biotech.

There are presently 145,000 individuals coping with Parkinson’s in the UK and in between 50 and 60 percent of them will be impacted by psychosis at some time in their life. Hallucinations happen when people see, hear or feel things that are not truly there. Misconceptions include establishing repaired beliefs that are not real. These signs can be frightening and stressful for individuals with Parkinson’s and their households and are usually handled with the elimination of medication utilized to treat Parkinson’s. If the signs continue, antipsychotic drugs are in some cases utilized, nevertheless this can result in got worse motor signs and adverse effects. In the UK, there are no medications licenced for Parkinson’s-associated psychosis.

In a current study, individuals with Parkinson’s informed the charity they would continue to usage, or start using, cannabis-derived items if robust proof appeared that they are safe and reliable in dealing with Parkinson’s signs.¹

The research study, due to begin recruitment early next year, will start with a six-week pilot to examine the security, tolerability and efficiency of pharmaceutical-grade CBD in individuals with Parkinson’s-associated psychosis. To discover the maximum dosage, CBD will be provided orally in pills at a dosage of up to 1,000 mg/day. In the 2nd phase, 120 individuals with Parkinson’s-associated psychosis will be hired to participate in a 12-week double-blind, placebo-controlled research study.

Researchers will examine the security and efficiency of CBD, with half the group getting the substance and half a placebo. Scientists will then perform in-depth evaluations of psychotic, motor and non-motor signs. Brain imaging will be utilized to examine the results of CBD.

The statement comes ahead of last assistance on medical marijuana which is due to be released by The National Institute for Health and Care Quality next month.

Dr Arthur Roach, Director of Research Study at Parkinson’s UK, stated:

“We understand from a current study we performed, that individuals with Parkinson’s would continue to usage, or start using, cannabis-derived items if robust proof appeared that they are safe and reliable in dealing with Parkinson’s signs. Among the crucial concerns this clinical trial will deal with is if CBD is safe to usage for Parkinson’s-associated psychosis, which has actually never ever been done prior to.

“This trial will provide evidence of the value of CBD to treat the symptoms of hallucinations and delusions in people with Parkinson’s. This could result in a regulated cannabinoid-based medicine being prescribed and used in the clinic, as opposed to self-administration of expensive supplements that have not been monitored for their composition or effects.”

“The projects funded through the Parkinson’s Virtual Biotech are driven completely by the Parkinson’s community. We hope this unique trial will demonstrate the potential of CBD to alleviate some important symptoms and bring us one step closer to delivering a treatment that will improve the quality of life for those affected.”

Lead Scientist, Teacher Sagnik Bhattacharya, Teacher of Translational Neuroscience and Psychiatry at King’s College London, stated:

“Through financing from the Parkinson’s Virtual Biotech this clinical trial will figure out, for the very first time, whether CBD can remedy the irregular performance of the brain that is triggering signs such as hallucinations and deceptions. Present treatments recommended by clinicians for psychosis usually work by obstructing dopamine receptors which can increase the issues individuals with Parkinson’s experience with motion and other signs of the condition.

“We will be assessing how safe CBD is for people with Parkinson’s, what the correct dosage is and how it is tolerated alongside the different medications someone with the condition may already be on. The study will also look at the effect of CBD on other symptoms which will pave the way for scientists to investigate the potential of the compound in treating these in future studies. We hope that this will progress to large-scale clinical trials – the final step towards becoming a new treatment that will improve the lives of people with Parkinson’s.”


To learn more on the Parkinson’s Virtual Biotech, the signs of Parkinson’s and pointers on handling Parkinson’s-associated psychosis, check out

Media queries:

For additional information/case studies/interview demands please contact:

Parkinson’s UK:

Anita Salhotra, Senior Citizen Media and PR Officer on 020 7932 1361 or e-mail [email protected] / Amy Dodge, Media and PR Supervisor, on 020 7932 1362 or e-mail [email protected]

Out of hours please call 07961 460 248 or e-mail [email protected]
King’s College London:

Robin Bisson, Senior Citizen Press Officer, Institute of Psychiatry, Psychology & Neuroscience
[email protected] / +44 20 7848 5377 / +44 7718 697176.

Notes to editors

¹About the study ‘Marijuana and Parkinson’s: the views of individuals with Parkinson’s and health and care experts’

In Between January and March 2019, Parkinson’s UK asked 1,600 individuals with Parkinson’s and 29 health and care experts to inform them about their experiences with, and viewpoints on, using cannabis-based items.

The crucial findings were as follows:

The number of individuals with Parkinson’s utilize marijuana?

59% had not utilized cannabis-derived items prior to, however would think about using them to manage their signs

26% had actually utilized cannabis-derived items (16% are presently using them for their Parkinson’s and 10% have actually utilized them in the past)

16% had not utilized cannabis-derived items and aren’t interested in using them in the future

Extremely, individuals with Parkinson’s would continue to usage, or start using, cannabis-derived items if robust proof appeared that they’re safe and reliable in dealing with Parkinson’s signs

To check out the complete marijuana and Parkinson’s study findings, check out

Case research study

Paula Scurfield (71), from Beckenham, London, was detected with Parkinson’s in 2014 after establishing an extremely small trembling on one side of her body. To treat the signs of sluggishness of motion, tightness and rigidness in muscles and tiredness, she was offered the drug Levodopa. As an outcome she established dyskinesia which is a typical negative effects. To treat this, she took the drug Amantadine which triggered hallucinations at the periphery of her vision. She stated it took a great deal of trial and mistake to get a mix of medication that aided with her signs.

“Regrettably the drug which was included to my routine to treat dyskinesia provided me hallucinations – I would see animals running past me in the periphery of my vision every day. At the start I believed I was envisioning it however then I understood it was a phenomenon. I understood it wasn’t genuine however it was the most strange sensation and I felt a bit afraid. My physician cut the dosage in half, which stopped the hallucinations in the meantime.

“The clinical trial is very exciting and if it provides evidence for the safety and effectiveness of CBD, it could benefit those affected by Parkinson’s-related psychosis.”

About Parkinson’s UK

Anybody can get Parkinson’s, young or old. Every hour, 2 more individuals are detected.

Parkinson’s is what takes place when the brain cells that make dopamine start to pass away. There are over 40 signs, from trembling and discomfort to stress and anxiety. Some are treatable, however the drugs can have major adverse effects. It becomes worse with time and there’s no remedy. Yet.

However we understand we’re close to significant developments. By moneying the ideal research study into the most appealing treatments, we get closer to a remedy every day.

Till then, we’re here for everybody impacted by Parkinson’s. Combating for reasonable treatment and much better services. Making everybody see its genuine effect.

We are Parkinson’s UK. Powered by individuals. Moneyed by you. Together we’ll discover a remedy.

Recommendations, info and assistance, is offered by means of our site,, or our complimentary, private helpline on 0808 800 0303.

About the Parkinson’s Virtual Biotech

Individuals with Parkinson’s urgently require brand-new treatments. However today, there’s a big space in drug advancement. The Parkinson’s Virtual Biotech exists to plug that crucial financing lack.

It takes the most appealing research study and partners with organizations and pharmaceutical business around the world to establish the findings into possible drug treatments. Presently there are jobs at the discovery, preclinical and early clinical advancement phases.

Without any big groups of researchers or costly laboratories to run, the Parkinson’s Virtual Biotech guarantees that every cent of the yearly £4m financial investment goes on what matters most: fasting lane the jobs with the best capacity to change the lives of individuals with Parkinson’s.

Nobody else is doing this. It’s a vibrant threat. However our company believe it will provide a groundbreaking brand-new treatment by 2024. Since individuals with Parkinson’s will not wait. Together, we’ll discover a remedy.

To learn more, check out

About King’s College London and the Institute of Psychiatry, Psychology & Neuroscience

King’s College London is among the top 25 universities in the world (2017/18 QS World University Rankings) and amongst the earliest in England. King’s has more than 26,500 trainees (of whom almost 10,400 are college students) from some 150 nations worldwide, and almost 6,900 personnel. The university is in the 2nd stage of a £1 billion redevelopment program which is changing its estate.

The Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King’s College London is the leading centre for psychological health and associated neurosciences research study in Europe. It produces more extremely mentioned publications in psychiatry and psychological health than any other university in the world (Scopus, 2016), with 21 of the most extremely mentioned researchers in this field. World-leading research study from the IoPPN has actually made, and continues to make, an influence on how we comprehend, avoid and treat mental disorder and other conditions that impact the brain.

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