Safety and Efficacy of Medical Cannabis in Fibromyalgia

jcm-logo“Chronic pain may be treated by medical cannabis. Yet, there is scarce evidence to support the role of medical cannabis in the treatment of fibromyalgia. The aim of the study was to investigate the characteristics, safety, and effectiveness of medical cannabis therapy for fibromyalgia.

Results: Among the 367 fibromyalgia patients, the mean age was 52.9 ± 15.1, of whom 301 (82.0%) were women. Twenty eight patients (7.6%) stopped the treatment prior to the six months follow-up. The six months response rate was 70.8%. Pain intensity (scale 0–10) reduced from a median of 9.0 at baseline to 5.0 (p < 0.001), and 194 patients (81.1%) achieved treatment response. In a multivariate analysis, age above 60 years (odds ratio [OR] 0.34, 95% C.I 0.16–0.72), concerns about cannabis treatment (OR 0.36, 95% C.I 0.16–0.80), spasticity (OR 2.26, 95% C.I 1.08–4.72), and previous use of cannabis (OR 2.46 95% C.I 1.06–5.74) were associated with treatment outcome. The most common adverse effects were mild and included dizziness (7.9%), dry mouth (6.7%), and gastrointestinal symptoms (5.4%).

Conclusion: Medical cannabis appears to be a safe and effective alternative for the treatment of fibromyalgia symptoms. Standardization of treatment compounds and regimens are required.”

https://www.mdpi.com/2077-0383/8/6/807

“Medical cannabis appears to be a safe and effective alternative for the treatment of fibromyalgia symptoms.”  https://www.ncbi.nlm.nih.gov/pubmed/31195754

Randomized Placebo-Controlled Trial of Nabilone for Agitation in Alzheimer’s Disease.

The American Journal of Geriatric Psychiatry

“Nabilone may be an effective treatment for agitation.”

https://www.ncbi.nlm.nih.gov/pubmed/31182351

https://www.sciencedirect.com/science/article/pii/S1064748119303550?via%3Dihub

“Nabilone (marketed as Cesamet) is a synthetic form of delta-9-tetrahydrocannabinol (Δ⁹-THC), the primary psychoactive component of cannabis (marijuana). Although structurally distinct from THC, nabilone mimics THC’s structure and pharmacological activity through weak partial agonist activity at Cannabinoid-1 (CB1R) and Cannabinoid-2 (CB2R) receptors, however it is considered to be twice as active as Δ⁹-THC. Nabilone is approved by the FDA for the treatment of nausea and vomiting associated with cancer chemotherapy in patients who have failed to respond adequately to conventional antiemetic treatments.” https://www.drugbank.ca/drugs/DB00486

Purified Cannabidiol for Treatment of Refractory Epilepsies in Pediatric Patients with Developmental and Epileptic Encephalopathy.

“A pharmaceutical grade formulation of cannabidiol (CBD) has been approved for the treatment of Dravet syndrome and Lennox-Gastaut syndrome; however, this formulation is not yet available to patients outside the USA. In addition, CBD is thought to have broad anti-seizure properties that may be beneficial for other types of intractable epilepsy.

OBJECTIVE:

The aim of this study was to evaluate the efficacy, safety and tolerability of artisanal medical CBD oil in patients with developmental and epileptic encephalopathy (DEE) at the tertiary epilepsy center of Bambino Gesù Children’s Hospital in Rome, Italy.

RESULTS:

Twenty-nine patients were enrolled in this study (41.4% male). The mean duration of exposure to artisanal CBD was 11.2 months [range 6-25 months; standard deviation (SD) ± 4.4 months]. Mean age at study enrollment was 9.3 years (range 1.9-16.3 years; SD ± 4.7 years). Eleven out of 29 patients (37.9%) had a ≥ 50% improvement in seizure frequency; one patient became seizure free. None of the patients reported worsening seizure frequency; however, 18 patients (62.1%) experienced no beneficial effect regarding seizure frequency. Adverse effects were reported in seven patients (24.14%), most commonly somnolence, decreased appetite and diarrhea. Adverse events were mild and transient, and no dose modification of CBD or other AEDs was required.

CONCLUSIONS:

These data suggest that CBD may have beneficial effects in patients with DEE and an acceptable safety profile. Placebo-controlled randomized trials should be conducted to formally assess the safety and efficacy of CBD in patients with DEE.”

Marijuana as a Substitute for Prescription Medications: A Qualitative Study.

Publication Cover

“Over the past few decades in the United States, marijuana for medical purposes has become increasingly prevalent. Initial qualitative and epidemiological research suggests that marijuana may be a promising substitute for traditional pharmacotherapies.

Objectives: This qualitative study examined perceptions relating to (1) using medical marijuana in comparison to other prescription medications and (2) user perception of policy issues that limit adoption of medical marijuana use.

Results: Three themes emerged related to medical marijuana use, including (1) comparison of medical marijuana to other medications (i.e., better and/or fewer side effects than prescription medications, improves quality of life), (2) substitution of marijuana for other medications (i.e., in addition to or instead of), and (3) how perception of medical marijuana policy impacts use (i.e., stigma, travel, cost, and lack of instruction regarding use).

Conclusions: Several factors prevent pervasive medical marijuana use, including stigma, cost, and the inability for healthcare providers to relay instructions regarding dosing, strain, and method of use. Findings suggest that medical patients consider marijuana to be a viable alternative for opioids and other prescription medications, though certain policy barriers inhibit widespread implementation of marijuana as a treatment option.”

https://www.ncbi.nlm.nih.gov/pubmed/31179810

https://www.tandfonline.com/doi/abs/10.1080/10826084.2019.1618336?journalCode=isum20

Cannabinoids, hippocampal excitability and efficacy for the treatment of epilepsy.

Pharmacology & Therapeutics

“Interest in cannabis and its related cannabinoids THC and CBD for use as anti-convulsant therapy has been progressively increasing. While the destigmatization of cannabis and cannabis related research have progressed in the last few decades, there are still many questions that remain answered. This review seeks to summarize the progress made in cannabis research in the past four decades and to identify possible directions for future research that are critical for the development of cannabinoid-based therapy in epilepsy.”

https://www.ncbi.nlm.nih.gov/pubmed/31176695

https://www.sciencedirect.com/science/article/pii/S0163725819301093?via%3Dihub

Medical Marijuana in the Pediatric Population With Epilepsy—What You Should Know

Journal of Pediatric Health Care Home

“This article discusses the controversial but promising topic of medical marijuana (MM) use in the pediatric population with epilepsy. Included is the importance of MM throughout history, the pharmacodynamics and pharmacokinetics, and a literature review that provides anecdotal evidence of the positive effect MM has on children suffering from seizures. From this literature review, dosage for treatment and management is provided. Also discussed is the recent FDA-approved pharmaceutical grade CBD product, Epidiolex, for treatment of two pediatric-onset seizure syndromes, Lennox-Gastaut and Dravet. Clinical implications regarding adverse side effects of MM use are also discussed. The aim of this article is to arm providers with contemporary knowledge on the risks and benefits of MM use in the pediatric population with epilepsy, which may boost their skills and confidence in educating and advocating for children with seizures. This novel, ever-changing medication is in the forefront of history and the news, making this topic especially important for review.”

The pharmacological reduction of hippocampal neurogenesis attenuates the protective effects of cannabidiol on cocaine voluntary intake.

Addiction Biology banner“The administration of cannabidiol has shown promising evidence in the treatment of some neuropsychiatric disorders, including cocaine addiction. However, little information is available as to the mechanisms by which cannabidiol reduces drug use and compulsive seeking.

We investigated the role of adult hippocampal neurogenesis in reducing cocaine voluntary intake produced by repeated cannabidiol treatment in mice.

Cannabidiol (20 mg/kg) reduced cocaine self-administration behaviour acquisition and total cocaine intake and enhanced adult hippocampal neurogenesis.

The present study confirms that adult hippocampal neurogenesis is one of the mechanisms by which cannabidiol lowers cocaine reinforcement and demonstrates the functional implication of adult hippocampal neurogenesis in cocaine voluntary consumption in mice.

Such findings highlight the possible use of cannabidiol for developing new pharmacotherapies to manage cocaine use disorders.”

https://www.ncbi.nlm.nih.gov/pubmed/31162770

https://onlinelibrary.wiley.com/doi/abs/10.1111/adb.12778

Bipolar disorder and the endocannabinoid system.

 Image result for acta neuropsychiatrica“Bipolar disorder (BD) is a debilitating, lifelong neuropsychiatric illness characterised by unsteady mood states which vacillate from (hypo)mania to depression. Despite the availability of pharmaceutical agents which can be effective in ameliorating the acute affective symptoms and prevent episodic relapse, BD is inadequately treated in a subset of patients.

The endocannabinoid system (ECS) is known to exert neuromodulatory effects on other neurotransmitter systems critical in governing emotions. Several studies ranging from clinical to molecular, as well as anecdotal evidence, have placed a spotlight on the potential role of the ECS in the pathophysiology of BD. In this perspective, we present advantages and disadvantages of cannabis use in the management of illness course of BD and provide mechanistic insights into how this system might contribute to the pathophysiology of BD.

RESULTS:

We highlight the putative role of selective cannabinoid receptor 2 (CB2) agonists in BD and briefly discuss findings which provide a rationale for targeting the ECS to assuage the symptoms of BD. Further, data encourage basic and clinical studies to determine how cannabis and cannabinoids (CBs) can affect mood and to investigate emerging CB-based options as probable treatment approaches.

CONCLUSION:

The probable role of the ECS has been almost neglected in BD; however, from data available which suggest a role of ECS in mood control, it is justified to support conducting comprehensive studies to determine whether ECS manipulation could positively affect BD. Based on the limited available data, we suggest that activation of CB2 may stabilise mood in this disorder.”

https://www.ncbi.nlm.nih.gov/pubmed/31159897

https://www.cambridge.org/core/journals/acta-neuropsychiatrica/article/bipolar-disorder-and-the-endocannabinoid-system/0C3191AF7BECA6D5A6EBED3C94CAA57B

Should Oncologists Recommend Cannabis?

“Cannabis is a useful botanical with a wide range of therapeutic potential. Global prohibition over the past century has impeded the ability to study the plant as medicine. However, delta-9-tetrahydrocannabinol (THC) has been developed as a stand-alone pharmaceutical initially approved for the treatment of chemotherapy-related nausea and vomiting in 1986. The indication was expanded in 1992 to include treatment of anorexia in patients with the AIDS wasting syndrome. Hence, if the dominant cannabinoid is available as a schedule III prescription medication, it would seem logical that the parent botanical would likely have similar therapeutic benefits. The system of cannabinoid receptors and endogenous cannabinoids (endocannabinoids) has likely developed to help us modulate our response to noxious stimuli. Phytocannabinoids also complex with these receptors, and the analgesic effects of cannabis are perhaps the best supported by clinical evidence. Cannabis and its constituents have also been reported to be useful in assisting with sleep, mood, and anxiety. Despite significant in vitro and animal model evidence supporting the anti-cancer activity of individual cannabinoids-particularly THC and cannabidiol (CBD)-clinical evidence is absent. A single intervention that can assist with nausea, appetite, pain, mood, and sleep is certainly a valuable addition to the palliative care armamentarium. Although many healthcare providers advise against the inhalation of a botanical as a twenty-first century drug-delivery system, evidence for serious harmful effects of cannabis inhalation is scant and a variety of other methods of ingestion are currently available from dispensaries in locales where patients have access to medicinal cannabis. Oncologists and palliative care providers should recommend this botanical remedy to their patients to gain first-hand evidence of its therapeutic potential despite the paucity of results from randomized placebo-controlled clinical trials to appreciate that it is both safe and effective and really does not require a package insert.”

https://www.ncbi.nlm.nih.gov/pubmed/31161270

https://link.springer.com/article/10.1007%2Fs11864-019-0659-9

Cannabinoid receptors as therapeutic targets for autoimmune diseases: where do we stand?

Drug Discovery Today

“Described during the late 1980s and 1990s, cannabinoid receptors (CB1R and CB2R) are G-protein-coupled receptors (GPCRs) activated by endogenous ligands and cannabinoid drug compounds, such as Δ9-THC. Whereas CB1R has a role in the regulation of neurotransmission in different brain regions and mainly mediates the psychoactive effects of cannabinoids, CB2R is found predominantly in the cells and tissues of the immune system and mediates anti-inflammatory and immunomodulatory processes. Studies have demonstrated that CB1R and CB2R can affect the activation of T cells, B cells, monocytes, and microglial cells, inhibiting proinflammatory cytokine expression and upregulating proresolution mediators. Thus, in this review, we summarize the mechanisms by which CBRs interact with the autoimmune environment and the potential to suppress the development and activation of autoreactive cells. Finally, we highlight how the modulation of CB1R and CB2R is advantageous in the treatment of autoimmune diseases, including multiple sclerosis (MS), type 1 diabetes mellitus (T1DM) and rheumatoid arthritis (RA).”

https://www.ncbi.nlm.nih.gov/pubmed/31158514

https://www.sciencedirect.com/science/article/pii/S1359644618304847?via%3Dihub