Philip Robson

Bio: Philip Robson is an academic researcher from Gdańsk Medical University. The author has contributed to research in topics: Apathy & Olanzapine. The author has an hindex of 2, co-authored 3 publications receiving 279 citations.

Cannabidiol (CBD) as an Adjunctive Therapy in Schizophrenia: A Multicenter Randomized Controlled Trial.

Abstract: Objective:Research in both animals and humans indicates that cannabidiol (CBD) has antipsychotic properties. The authors assessed the safety and effectiveness of CBD in patients with schizophrenia.Method:In an exploratory double-blind parallel-group trial, patients with schizophrenia were randomized in a 1:1 ratio to receive CBD (1000 mg/day; N=43) or placebo (N=45) alongside their existing antipsychotic medication. Participants were assessed before and after treatment using the Positive and Negative Syndrome Scale (PANSS), the Brief Assessment of Cognition in Schizophrenia (BACS), the Global Assessment of Functioning scale (GAF), and the improvement and severity scales of the Clinical Global Impressions Scale (CGI-I and CGI-S).Results:After 6 weeks of treatment, compared with the placebo group, the CBD group had lower levels of positive psychotic symptoms (PANSS: treatment difference=−1.4, 95% CI=−2.5, −0.2) and were more likely to have been rated as improved (CGI-I: treatment difference=−0.5, 95% CI=−0....

Use of cannabinoids in the treatment of mental disorders

Abstract: This invention relates to the use of CBD to treat mental disorders For example it can be used as an adjunct therapy to treat positive symptoms in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy in combination with olanzapine to treat both positive and negative symptoms in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy in combination with olanzapine to treat negative symptoms in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy to treat anhedonia/asociality in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy to treat avolition/apathy in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy to treat disturbance of attention in mental disorders such as schizophrenia and related disorders; or as a monotherapy or as an adjunct therapy to treat one or more distinct sub-domains of negative symptoms selected from: i) avolition/apathy; ii) anhedonia/asociality and iii) disturbance of attention; or as an adjunct therapy to treat cognitive symptoms, particularly working memory, motor speed and executive function in mental disorders such as schizophrenia and related disorders There may additionally be provided compositions comprising CBD in combination with one or more antipsychotics such as olanzapine and quetiapine In particular the invention relates to the treatment of schizophrenia or related psychotic disorders, more particularly still those which are considered to be treatment resistant

Use of cannabidiol in the treatment of mental disorders

Abstract: This invention relates to the use of CBD to treat mental disorders. For example it can be used as an adjunct therapy to treat positive symptoms in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy in combination with olanzapine to treat both positive and negative symptoms in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy in combination with olanzapine to treat negative symptoms in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy to treat anhedonia / asociality in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy to treat avolition / apathy in mental disorders such as schizophrenia and related disorders; or as an adjunct therapy to treat disturbance of attention in mental disorders such as schizophrenia and related disorders; or as a monotherapy or as an adjunct therapy to treat one or more distinct sub-domains of negative symptoms selected from: i) avolition/ apathy; ii) anhedonia / asociality and iii) disturbance of attention; or as an adjunct therapy to treat cognitive symptoms, particularly working memory, motor speed and executive function in mental disorders such as schizophrenia and related disorders. There may additionally be provided compositions comprising CBD in combination with one or more antipsychotics such as olanzapine and quetiapine. In particular the invention relates to the treatment of schizophrenia or related psychotic disorders, more particularly still those which are considered to be treatment resistant.

New approaches and challenges to targeting the endocannabinoid system.

Abstract: The endocannabinoid signalling system was discovered because receptors in this system are the targets of compounds present in psychotropic preparations of Cannabis sativa. The search for new therapeutics that target endocannabinoid signalling is both challenging and potentially rewarding, as endocannabinoids are implicated in numerous physiological and pathological processes. Hundreds of mediators chemically related to the endocannabinoids, often with similar metabolic pathways but different targets, have complicated the development of inhibitors of endocannabinoid metabolic enzymes but have also stimulated the rational design of multi-target drugs. Meanwhile, drugs based on botanical cannabinoids have come to the clinical forefront, synthetic agonists designed to bind cannabinoid receptor 1 with very high affinity have become a societal threat and the gut microbiome has been found to signal in part through the endocannabinoid network. The current development of drugs that alter endocannabinoid signalling and how this complex system could be pharmacologically manipulated in the future are described in this Opinion article.

Cannabidiol Adverse Effects and Toxicity.

Abstract: Background Currently, there is a great interest in the potential medical use of cannabidiol (CBD), a non-intoxicating cannabinoid. Productive pharmacological research on CBD occurred in the 1970s and intensified recently with many discoveries about the endocannabinoid system. Multiple preclinical and clinical studies led to FDA-approval of Epidiolex®, a purified CBD medicine formulated for oral administration for the treatment of infantile refractory epileptic syndromes, by the US Food and Drug Administration in 2018. The World Health Organization considers rescheduling cannabis and cannabinoids. CBD use around the world is expanding for diseases that lack scientific evidence of the drug's efficacy. Preclinical and clinical studies also report adverse effects (AEs) and toxicity following CBD intake. Methods Relevant studies reporting CBD's AEs or toxicity were identified from PubMed, Cochrane Central, and EMBASE through January 2019. Studies defining CBD's beneficial effects were included to provide balance in estimating risk/benefit. Results CBD is not risk-free. In animals, CBD AEs included developmental toxicity, embryo-fetal mortality, central nervous system inhibition and neurotoxicity, hepatocellular injuries, spermatogenesis reduction, organ weight alterations, male reproductive system alterations, and hypotension, although at doses higher than recommended for human pharmacotherapies. Human CBD studies for epilepsy and psychiatric disorders reported CBD-induced drug-drug interactions, hepatic abnormalities, diarrhea, fatigue, vomiting, and somnolence. Conclusion CBD has proven therapeutic efficacy for serious conditions such as Dravet and Lennox-Gastaut syndromes and is likely to be recommended off label by physicians for other conditions. However, AEs and potential drug-drug interactions must be taken into consideration by clinicians prior to recommending off-label CBD.

Translational Investigation of the Therapeutic Potential of Cannabidiol (CBD): Toward a New Age.

Abstract: Background: Among the many cannabinoids in the cannabis plant, cannabidiol (CBD) is a compound that does not produce the typical subjective effects of marijuana Objectives: The aim of the present review is to describe the main advances in the development of the experimental and clinical use of cannabidiol CBD in neuropsychiatry Methods: A non-systematic search was performed for studies dealing with therapeutic applications of CBD, especially performed by Brazilian researchers Results: CBD was shown to have anxiolytic, antipsychotic and neuroprotective properties In addition, basic and clinical investigations on the effects of CBD have been carried out in the context of many other health conditions, including its potential use in epilepsy, substance abuse and dependence, schizophrenia, social phobia, posttraumatic stress, depression, bipolar disorder, sleep disorders, and Parkinson Discussion: CBD is an useful and promising molecule that may help patients with a number of clinical conditions Controlled clinical trials with different neuropsychiatric populations that are currently under investigation should bring important answers in the near future and support the translation of research findings to clinical settings