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Hroudová J, Fišar Z. Alzheimer's disease approaches - Focusing on pathology, biomarkers and clinical trial candidates. Prog Neuropsychopharmacol Biol Psychiatry 2024; 134:111069. [PMID: 38917881 DOI: 10.1016/j.pnpbp.2024.111069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 06/19/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024]
Abstract
The strategy for the development of new drugs for Alzheimer's disease (AD) recognizes that an effective therapy requires early therapeutic intervention and a multifactorial approach that considers the individual initiators of AD development. Current knowledge of AD includes the understanding of pathophysiology, risk factors, biomarkers, and the evolving patterns of biomarker abnormalities. This knowledge is essential in identifying potential molecular targets for new drug development. This review summarizes promising AD drug candidates, many of which are currently in phase 2 or 3 clinical trials. New agents are classified according to the Common Alzheimer's Disease Research Ontology (CADRO). The main targets of new drugs for AD are processes related to amyloid beta and tau neurotoxicity, neurotransmission, inflammation, metabolism and bioenergetics, synaptic plasticity, and oxidative stress. These interventions are aimed at preventing disease onset and slowing or eliminating disease progression. The efficacy of pharmacotherapy may be enhanced by combining these drugs with other treatments, antioxidants, and dietary supplements. Ongoing research into AD pathophysiology, risk factors, biomarkers, and the dynamics of biomarker abnormalities may contribute to the understanding of AD and offer hope for effective therapeutic strategies in the near future.
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Affiliation(s)
- Jana Hroudová
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 11, 120 00 Prague 2, Czech Republic.
| | - Zdeněk Fišar
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 11, 120 00 Prague 2, Czech Republic
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Rao JS, Tangarife MA, Mukunda R. Neurobiological alteration in agitation in Alzheimer's disease and possible interventions. Front Psychiatry 2024; 15:1412901. [PMID: 39071227 PMCID: PMC11273070 DOI: 10.3389/fpsyt.2024.1412901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 06/21/2024] [Indexed: 07/30/2024] Open
Affiliation(s)
- Jagadeesh S. Rao
- Science Department, India Globalization Capital (IGC) Pharma, Potomac, MD, United States
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Dallabrida KG, de Oliveira Bender JM, Chade ES, Rodrigues N, Sampaio TB. Endocannabinoid System Changes throughout Life: Implications and Therapeutic Potential for Autism, ADHD, and Alzheimer's Disease. Brain Sci 2024; 14:592. [PMID: 38928592 PMCID: PMC11202267 DOI: 10.3390/brainsci14060592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/03/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
The endocannabinoid system has been linked to various physiological and pathological processes, because it plays a neuromodulator role in the central nervous system. In this sense, cannabinoids have been used off-label for neurodevelopmental disorders, such as autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHA), as well as in Alzheimer's disease (AD), a more prevalent neurodegenerative disease. Thus, this study aims, through a comprehensive literature review, to arrive at a better understanding of the impact of cannabinoids in the therapeutic treatment of patients with ASD, ADHD, and Alzheimer's disease (AD). Overall, cannabis products rich in CBD displayed a higher therapeutic potential for ASD children, while cannabis products rich in THC have been tested more for AD therapy. For ADHD, the clinical studies are incipient and inconclusive, but promising. In general, the main limitations of the clinical studies are the lack of standardization of the cannabis-based products consumed by the participants, a lack of scientific rigor, and the small number of participants.
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Affiliation(s)
| | | | - Ellen Schavarski Chade
- Department of Pharmacy, State University of Centro Oeste, Guarapuava 85040-167, PR, Brazil
| | - Nathalia Rodrigues
- Department of Medicine, State University of Centro Oeste, Guarapuava 85040-167, PR, Brazil
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Balneaves LG, Alraja AA, Thompson G, Penner JL, John PS, Scerbo D, van Dyck J. Cannabis use in a Canadian long-term care facility: a case study. BMC Geriatr 2024; 24:467. [PMID: 38811895 PMCID: PMC11134741 DOI: 10.1186/s12877-024-05074-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 05/13/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Following the legalization of cannabis in Canada in 2018, people aged 65 + years reported a significant increase in cannabis consumption. Despite limited research with older adults regarding the therapeutic benefits of cannabis, there is increasing interest and use among this population, particularly for those who have chronic illnesses or are at end of life. Long-term Care (LTC) facilities are required to reflect on their care and policies related to the use of cannabis, and how to address residents' cannabis use within what they consider to be their home. METHODS Using an exploratory case study design, this study aimed to understand how one LTC facility in western Canada addressed the major policy shift related to medical and non-medical cannabis. The case study, conducted November 2021 to August 2022, included an environmental scan of existing policies and procedures related to cannabis use at the LTC facility, a quantitative survey of Healthcare Providers' (HCP) knowledge, attitudes, and practices related to cannabis, and qualitative interviews with HCPs and administrators. Quantitative survey data were analyzed using descriptive statistics and content analysis was used to analyze the qualitative data. RESULTS A total of 71 HCPs completed the survey and 12 HCPs, including those who functioned as administrators, participated in the interview. The largest knowledge gaps were related to dosing and creating effective treatment plans for residents using cannabis. About half of HCPs reported providing care in the past month to a resident who was taking medical cannabis (54.9%) and a quarter (25.4%) to a resident that was taking non-medical cannabis. The majority of respondents (81.7%) reported that lack of knowledge, education or information about medical cannabis were barriers to medical cannabis use in LTC. From the qualitative data, we identified four key findings regarding HCPs' attitudes, cannabis access and use, barriers to cannabis use, and non-medical cannabis use. CONCLUSIONS With the legalization of medical and non-medical cannabis in jurisdictions around the world, LTC facilities will be obligated to develop policies, procedures and healthcare services that are able to accommodate residents' use of cannabis in a respectful and evidence-informed manner.
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Affiliation(s)
- Lynda G Balneaves
- College of Nursing, University of Manitoba, Winnipeg, MB, Canada.
- College of Nursing, Rady Faculty of Health Sciences, University of Manitoba, 89 Curry Place, Winnipeg, MB, R3T 2N2, Canada.
| | - Abeer A Alraja
- College of Nursing, University of Manitoba, Winnipeg, MB, Canada
| | | | - Jamie L Penner
- College of Nursing, University of Manitoba, Winnipeg, MB, Canada
| | - Philip St John
- Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Daniella Scerbo
- College of Nursing, University of Manitoba, Winnipeg, MB, Canada
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Broers B, Bianchi F. Cannabinoids for Behavioral Symptoms in Dementia: An Overview. PHARMACOPSYCHIATRY 2024; 57:160-168. [PMID: 38447959 DOI: 10.1055/a-2262-7837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Dementia, with loss of memory, cognitive abilities, and independent daily functioning, is increasing worldwide, related to an aging population. Currently, there is no curative treatment for dementia. Treatment of the frequently occurring behavioral and psychological symptoms of dementia (BPSD) is partially effective and associated with significant side effects. Cannabinoids are lipophilic molecules acting on the CB1 end CB2 receptors, essential for main biological processes such as sleep, appetite, memory, and pain. Cannabinoids might have a positive impact on amyloid formation in Alzheimer's disease, the main form of dementia, and on BPSD symptoms. Most knowledge currently concerns delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). In the context of dementia and BPSD, THC might be beneficial for associated spasticity and possible pain or lack of appetite and CBD probably works better on sleep, agitation, and anxiety. This overview of prospective clinical studies and randomized clinical trials, published between 2005 and April 2023, using cannabinoids for BPSD suggests that older studies using low-dose oral synthetic THC showed no positive results. Still, more recent studies using THC/CBD-based oral medication at higher doses show promising results and are feasible and safe in this elderly polymedicated population. Several RCTs are ongoing and planned worldwide, and we hope other trials will follow to establish clinical efficiency and optimal dosing, as well as other outcomes such as deprescribing other medications and facilitation of care. We suggest that researchers also address the more sociological aspects of prescribing cannabinoids for dementia and BPSD in their specific context.
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Affiliation(s)
- Barbara Broers
- Geneva University Hospitals, Primary Care Division, Geneva, Switzerland
| | - Federica Bianchi
- Geneva University Hospitals, Palliative Care Division, Geneva, Switzerland
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Timler A, Bulsara C, Bulsara M, Vickery A, Jacques A, Codde J. Examining the use of cannabidiol and delta-9-tetrahydrocannabinol-based medicine among individuals diagnosed with dementia living within residential aged care facilities: Results of a double-blind randomised crossover trial. Australas J Ageing 2023; 42:698-709. [PMID: 37321847 DOI: 10.1111/ajag.13224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/28/2023] [Accepted: 05/18/2023] [Indexed: 06/17/2023]
Abstract
OBJECTIVE Dementia affects individuals older than 65 years. Currently, residential aged care facilities (RACF) use psychotropic medications to manage behavioural and neuropsychiatric symptoms of dementia (BPSD), which are recommended for short-term use and have substantial side effects, including increased mortality. Cannabinoid-based medicines (CBM) have some benefits that inhibit BPSD and cause minimal adverse effects (AEs), yet limited research has been considered with this population. The study aimed to determine a tolerable CBM dose (3:2 delta-9-tetrahydrocannabinol:cannabidiol), and assessed its effect on BPSD, quality of life (QoL) and perceived pain. METHODS An 18-week randomised, double-blinded, crossover trial was conducted. Four surveys, collected on seven occasions, were used to measure changes in BPSD, QoL and pain. Qualitative data helped to understand attitudes towards CBM. General linear mixed models were used in the analysis, and the qualitative data were synthesised. RESULTS Twenty-one participants (77% female participants, mean age 85) took part in the trial. No significant differences were seen between the placebo and CBM for behaviour, QOL or pain, except a decrease in agitation at the end of treatment in favour of CBM. The qualitative findings suggested improved relaxation and sleep among some individuals. Post hoc estimates on the data collected suggested that 50 cases would draw stronger conclusions on the Neuropsychiatric Inventory. CONCLUSIONS The study design was robust, rigorous and informed by RACF. The medication appeared safe, with minimal AEs experienced with CBM. Further studies incorporating larger samples when considering CBM would allow researchers to investigate the sensitivity of detecting BPSD changes within the complexity of the disease and concomitant with medications.
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Affiliation(s)
- Amanda Timler
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA, USA
| | - Caroline Bulsara
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA, USA
| | - Max Bulsara
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA, USA
| | - Alistair Vickery
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA, USA
- Emerald Clinics, Fremantle, WA, USA
| | - Angela Jacques
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA, USA
| | - Jim Codde
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA, USA
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Lacroix C, Guilhaumou R, Micallef J, Bruneteau G, Desnuelle C, Blin O. Cannabis for the treatment of amyotrophic lateral sclerosis: What is the patients' view? Rev Neurol (Paris) 2023; 179:967-974. [PMID: 37460332 DOI: 10.1016/j.neurol.2023.03.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 12/19/2022] [Accepted: 03/13/2023] [Indexed: 11/12/2023]
Abstract
Cannabis may have therapeutic benefits to relieve symptoms of amyotrophic lateral sclerosis (ALS) thanks to its pleiotropic pharmacological activity. This study is the first to present a large questionnaire-based survey about the "real-life" situation regarding cannabis use in the medical context in ALS patients in France. There were 129 respondents and 28 reported the use of cannabis (21.7%) to relieve symptoms of ALS. Participants mostly reported the use of cannabidiol (CBD) oil and cannabis weed and declared benefits both on motor (rigidity, cramps, fasciculations) and non-motor (sleep quality, pain, emotional state, quality of life, depression) symptoms and only eight reported minor adverse reactions (drowsiness, euphoria and dry mouth). Even if cannabis is mostly used outside medical pathways and could expose patients to complications (street and uncontrolled drugs, drug-drug interactions, adverse effects…), most of the participants reported "rational" consumption (legal cannabinoids, with only few combustion and adverse reactions). Despite some limitations, this study highlights the need for further research on the potential benefits of cannabis use for the management of ALS motor and non-motor symptoms. Indeed, there is an urgent need and call for and from patients to know more about cannabis and secure its use in a medical context.
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Affiliation(s)
- C Lacroix
- Service de Pharmacologie Clinique et Pharmacovigilance, AP-HM, Inserm, Inst Neurosci Syst, UMR 1106, Aix-Marseille University, University Hospital Federation DHUNE, 13005 Marseille, France.
| | - R Guilhaumou
- Service de Pharmacologie Clinique et Pharmacovigilance, AP-HM, Inserm, Inst Neurosci Syst, UMR 1106, Aix-Marseille University, University Hospital Federation DHUNE, 13005 Marseille, France
| | - J Micallef
- Service de Pharmacologie Clinique et Pharmacovigilance, AP-HM, Inserm, Inst Neurosci Syst, UMR 1106, Aix-Marseille University, University Hospital Federation DHUNE, 13005 Marseille, France
| | - G Bruneteau
- Paris ALS expert center, Assistance publique-Hôpitaux de Paris, Sorbonne université, Pitié-Salpêtrière Hospital, 75013 Paris, France; Brain Institute, Pitié-Salpêtrière Hospital, 75013 Paris, France
| | - C Desnuelle
- Departement of Neurology, Charity Association ARSLA, Emeritus Professor University Côte d'Azur, Côte d'Azur, France
| | - O Blin
- Service de Pharmacologie Clinique et Pharmacovigilance, AP-HM, Inserm, Inst Neurosci Syst, UMR 1106, Aix-Marseille University, University Hospital Federation DHUNE, 13005 Marseille, France
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Arnanz MA, Ruiz de Martín Esteban S, Martínez Relimpio AM, Rimmerman N, Tweezer Zaks N, Grande MT, Romero J. Effects of Chronic, Low-Dose Cannabinoids, Cannabidiol, Delta-9-Tetrahydrocannabinol and a Combination of Both, on Amyloid Pathology in the 5xFAD Mouse Model of Alzheimer's Disease. Cannabis Cannabinoid Res 2023. [PMID: 37862567 DOI: 10.1089/can.2023.0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023] Open
Abstract
Background: There is an urgent need for novel therapies to treat Alzheimer's disease. Among others, the use of cannabinoids such as delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) has been proposed as a putative approach based on their anti-inflammatory effects. Methods: The present work was designed to explore the effects of chronic (28 days) treatment with low doses of cannabinoids: CBD (0.273 mg/kg), THC (0.205 mg/kg) or a combination of both (CBD:THC; 0.273 mg/kg:0.205 mg/kg) in the 5xFAD mouse model of AD. Results: Our data revealed that THC-treated 5xFAD mice (but not other treatment groups) exhibited anxiogenic and depressant-like behavior. A significant improvement in spatial memory was observed only in the CBD:THC-treated group. Interestingly, all cannabinoid-treated groups showed significantly increased cortical levels of the insoluble form of beta amyloid 1-42. These effects were not accompanied by changes in molecular parameters of inflammation at the mRNA or protein level. Conclusions: These data reveal differential effects of chronic, low-dose cannabinoids and point to a role of these cannabinoids in the processing of amyloid peptides in the brains of 5xFAD mice.
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Affiliation(s)
- María Andrea Arnanz
- School of Pharmacy, Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Madrid, Spain
| | | | | | - Neta Rimmerman
- M.H MediCane Ltd., Kfar Saba, Israel
- MediCane R&D Ltd., Kfar Saba, Israel
| | - Nurit Tweezer Zaks
- M.H MediCane Ltd., Kfar Saba, Israel
- MediCane R&D Ltd., Kfar Saba, Israel
| | - María Teresa Grande
- School of Pharmacy, Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Madrid, Spain
| | - Julián Romero
- School of Pharmacy, Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Madrid, Spain
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Devanand DP. Management of neuropsychiatric symptoms in dementia. Curr Opin Neurol 2023; 36:498-503. [PMID: 37639488 PMCID: PMC10529332 DOI: 10.1097/wco.0000000000001199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
PURPOSE OF REVIEW The purpose is to review the results and clinical implications of recent studies of neuropathology in relation to neuropsychiatric symptoms (NPS) in Alzheimer's disease and related dementias, and discuss new therapeutic approaches based on evidence from clinical trials. RECENT FINDINGS In a large autopsy series from a national consortium, multiple neuropathologies of dementia subtypes were common and increased severity of specific NPS during life was associated with greater severity of neuropathology across diagnoses. Based on three clinical trials, brexpiprazole, which is an antipsychotic with dopamine and serotonin receptor partial agonism properties, was recently approved for the treatment of agitation in Alzheimer's dementia by the U.S. Food and Drug Administration (FDA). Its therapeutic profile indicates modest efficacy with high safety. Brexpiprazole has not been compared to other antipsychotics that are commonly prescribed to treat agitation in dementia, though none of them have been approved for this indication. Other drugs that showed positive results in Phase 2 trials are being tested in Phase 3 trials. These include cannabinoids and drug combinations that inhibit dextromethorphan metabolism peripherally, thereby increasing its bioavailability in the brain. Apathy is common in several types of dementia, and there is initial evidence that treatment with methylphenidate, a psychostimulant, may be efficacious with good tolerability. SUMMARY Greater understanding of the associations between NPS and dementia subtypes can improve clinical management of these disorders. In addition to the approval of brexpiprazole to treat agitation in Alzheimer's dementia, there is optimism about other medications based on ongoing clinical trials. Along with short-term improvement, altering the adverse impact on NPS on long-term prognosis remains an important challenge for the field.
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Affiliation(s)
- D P Devanand
- Professor of Psychiatry and Neurology, Director Brain Aging and Mental Health, Department of Psychiatry, New York State Psychiatric Institute and Columbia University Irving Medical Center, USA
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Fernández N, Cappello MG, Quiroga PN. An assessment of qualitative and quantitative cannabinoids analysis in selected commercially available cannabis oils in Argentina. Forensic Sci Int 2023; 349:111762. [PMID: 37392612 DOI: 10.1016/j.forsciint.2023.111762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/08/2023] [Accepted: 06/06/2023] [Indexed: 07/03/2023]
Abstract
In recent years, the therapeutic use of cannabis products, especially cannabis oils, has increased significantly, due to the pharmacological potential of their cannabinoids, for the treatment of conditions, such as pain management, cancer, and epilepsy. In Argentina, patients with medical prescriptions can access to cannabis oil, through self-cultivation, a third-person (grower or importer), or a civil organization authorized for that purpose. However, these products remain largely unregulated in Argentina, and information available regarding labeling accuracy, especially cannabidiol (CBD)/ Δ9-tetrahydrocannabinol (Δ9-THC) concentrations are inconsistent or nonexistent, nor long-term product stability, and lot to lot variability. Understanding these properties is fundamental if these products are to be used in patients with a determinate pathology. Therefore, we analyzed commercially available cannabis oils (n: 500) in Argentina for qualitative and quantitative cannabinoids content. In order to provide a detailed overview of their cannabinoids profiles, and determine Δ9-THC, CBD, and cannabinol (CBN) concentrations, samples were diluted and analyzed by gas chromatography- mass spectrometry (GC/MS). Most of the samples tested positive for cannabinoids (n: 469) with Δ9-THC and CBD as the predominant cannabinoids. Among products tested, only 29.8% (n: 149) gave specific CBD label claims, and testing indicated a CBD tested positive of 70.5% (n: 105). For products (n: 17) with a THC-free label claim, testing indicated 76.5% (n: 13) of Δ9-THC positive, and cannabinoids were not detected in four products. Δ9-THC concentrations ranged from 0.1 to 143.0 mg/mL, CBD concentrations from 0.1 to 125.3 mg/mL, and CBN concentrations from 0.04 to 60.10 mg/mL; CBN/ Δ9-THC ratios ranged from 0.0012 to 2.31, and CBD/ Δ9-THC ratios from 0.0008 to 178.87. Furthermore, the (Δ9-THC + CBN)/CBD ratio of most samples was greater than one. In summary, our results indicate that cannabis oil products show wide variability in cannabinoids content, purity, and labeling.
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Affiliation(s)
- Nicolás Fernández
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Toxicología y Química Legal, Laboratorio de Asesoramiento Toxicológico Analítico (CENATOXA), Ciudad Autónoma de Buenos Aires (CABA), Buenos Aires, Argentina.
| | - Marcello Gian Cappello
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Toxicología y Química Legal, Laboratorio de Asesoramiento Toxicológico Analítico (CENATOXA), Ciudad Autónoma de Buenos Aires (CABA), Buenos Aires, Argentina
| | - Patricia Noemí Quiroga
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Cátedra de Toxicología y Química Legal, Laboratorio de Asesoramiento Toxicológico Analítico (CENATOXA), Ciudad Autónoma de Buenos Aires (CABA), Buenos Aires, Argentina
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Alexandri F, Papadopoulou L, Tsolaki A, Papantoniou G, Athanasiadis L, Tsolaki M. The Effect of Cannabidiol 3% on Neuropsychiatric Symptoms in Dementia - Six-Month Follow-Up. Clin Gerontol 2023:1-8. [PMID: 37153956 DOI: 10.1080/07317115.2023.2209563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
OBJECTIVES To investigate the beneficial outcomes of giving cannabidiol (CBD) 3% over a six-month period in the BPSD, the management of which is a crucial issue for everyday clinical praxis and to compare the progress in BPSD of patients who receive Cannabidiol 3% with those who follow usual medical treatment (UMT) in everyday clinical praxis. METHODS A total of 20 PwD with severe BPSD were recruited from the database of Alzheimer Hellas with NPI score >30. Ten of them were assigned to UMT, while ten were assigned to a six-month treatment with CBD drops. The follow-up assessment was performed with NPI, both clinically and by structured telephone interview. RESULTS The follow-up assessment with NPI showed significant improvement of the BPSD in all our patients who received CBD, and no or limited improvement in the second group, regardless of the underlying neuropathology of dementia. CONCLUSIONS We suggest that CBD may be a more effective and safe choice for managing BPSD than the typical intervention. Future large randomized clinical trials are needed to re-assure these findings. CLINICAL IMPLICATIONS Healthcare professionals should consider incorporating CBD 3% into their practices to reduce BPSD in PwD. Regular assessments are necessary to ensure long-term effectiveness.
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Affiliation(s)
- Foteini Alexandri
- Neurosciences and Neurodegenerative Diseases, Postgraduate Course, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, Makedonia, Greece
| | - Lydia Papadopoulou
- Neurosciences and Neurodegenerative Diseases, Postgraduate Course, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, Makedonia, Greece
| | - Anthoula Tsolaki
- Greek Association of Alzheimer's Disease and Related Disorders (Alzheimer Hellas), Thessaloniki, Greece
- 1st Department of Neurology, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, Makedonia, Greece
| | - Georgia Papantoniou
- Department of Early Childhood Education, Faculty of Education Science, University of Ioannina, Ioannina, Greece
| | - Loukas Athanasiadis
- 1st Department of Psychiatry, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, Makedonia, Greece
| | - Magda Tsolaki
- Neurosciences and Neurodegenerative Diseases, Postgraduate Course, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, Makedonia, Greece
- Greek Association of Alzheimer's Disease and Related Disorders (Alzheimer Hellas), Thessaloniki, Greece
- 1st Department of Neurology, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, Makedonia, Greece
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12
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Filipiuc LE, Ştefănescu R, Solcan C, Ciorpac M, Szilagyi A, Cojocaru D, Stanciu GD, Creangă I, Caratașu CC, Ababei DC, Gavrila RE, Timofte AD, Filipiuc SI, Bild V. Acute Toxicity and Pharmacokinetic Profile of an EU-GMP-Certified Cannabis sativa L. in Rodents. Pharmaceuticals (Basel) 2023; 16:ph16050694. [PMID: 37242477 DOI: 10.3390/ph16050694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 04/26/2023] [Accepted: 04/30/2023] [Indexed: 05/28/2023] Open
Abstract
The conundrum of Cannabis sativa's applications for therapeutical purposes is set apart by the hundreds of known and commercially available strains, the social, cultural and historical context, and the legalization of its use for medical purposes in various jurisdictions around the globe. In an era where targeted therapies are continuously being developed and have become the norm, it is imperative to conduct standardized, controlled studies on strains currently cultivated under Good Manufacturing Practices (GMP) certification, a standard that guarantees the quality requirements for modern medical and therapeutic use. Thus, the aim of our study is to evaluate the acute toxicity of a 15.6% THC: <1% CBD, EU-GMP certified, Cannabis sativa L. in rodents, following the OECD acute oral toxicity guidelines, and to provide an overview of its pharmacokinetic profile. Groups of healthy female Sprague-Dawley rats were treated orally with a stepwise incremental dose, each step using three animals. The absence or presence of plant-induced mortality in rats dosed at one step determined the next step. For the EU GMP-certified Cannabis sativa L. investigated, we determined an oral LD50 value of over 5000 mg/kg in rats and a human equivalent oral dose of ≈806.45 mg/kg. Additionally, no significant clinical signs of toxicity or gross pathological findings were observed. According to our data, the toxicology, safety and pharmacokinetic profile of the tested EU-GMP-certified Cannabis sativa L. support further investigations through efficacy and chronic toxicity studies in preparation for potential future clinical applications and especially for the treatment of chronic pain.
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Affiliation(s)
- Leontina-Elena Filipiuc
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Raluca Ştefănescu
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Carmen Solcan
- Faculty of Veterinary Medicine, Ion Ionescu de la Brad University of Life Sciences, 700490 Iasi, Romania
| | - Mitică Ciorpac
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Andrei Szilagyi
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Dana Cojocaru
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Gabriela Dumitrita Stanciu
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Ioana Creangă
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Cătălin-Cezar Caratașu
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Daniela-Carmen Ababei
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
- Pharmacodynamics and Clinical Pharmacy Department, Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Roxana-Elena Gavrila
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Andrei-Daniel Timofte
- Histology Department, Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Silviu-Iulian Filipiuc
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
| | - Veronica Bild
- Advanced Research and Development Center for Experimental Medicine (CEMEX), Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
- Pharmacodynamics and Clinical Pharmacy Department, Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iasi, Romania
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Lee D, Clark ED, Antonsdottir IM, Porsteinsson AP. A 2023 update on the advancements in the treatment of agitation in Alzheimer's disease. Expert Opin Pharmacother 2023; 24:691-703. [PMID: 36958727 DOI: 10.1080/14656566.2023.2195539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
INTRODUCTION Neuropsychiatric symptoms (NPS) in Alzheimer's Disease (AD) are associated with negative outcomes for patients and their care partners. Agitation is one of the most common and distressing NPS, yet we lack safe and effective treatment options. While nonpharmacologic interventions are considered first line treatment, these may not be effective or appropriate for every patient. Our current approaches to the pharmacologic treatment of agitation in AD consist of the off-label use of antipsychotics, sedative/hypnotics, anxiolytics, mood-stabilizing anticonvulsants, acetylcholinesterase inhibitors, NMDA receptor antagonists, and antidepressants. Despite their prevalent use, they have questionable efficacy and significant safety concerns. AREAS COVERED Advances in the understanding of neurobiological mechanisms of agitation have fueled recent clinical trials. This article is an update to our 2017 review. A comprehensive search of ClinicalTrials.gov was completed from January 2017 to June 2022 using the search terms "Alzheimer's Disease" and "Agitation". A subsequent scoping review was completed in PubMed and Google Scholar. Several agents were identified for promise in treating agitation, including: brexpiprazole, cannabinoids, dexmedetomidine, dextromethorphan, escitalopram, masupirdine, and prazosin. EXPERT OPINION Clinical trials remain underway utilizing both novel and repurposed agents to address symptoms of agitation in AD. With increasing understanding of the neurobiological mechanisms that fuel the development of agitation in AD, the use of enhanced trial design and conduct, advanced statistical approaches, and accelerated pathways for regulatory approval, we are advancing closer to having safe and efficacious treatment options for agitation in AD.
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Affiliation(s)
- Daniel Lee
- Alzheimer's Disease Care, Research and Education (AD-CARE), Department of Psychiatry, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY 14642
| | - Emily D Clark
- Alzheimer's Disease Care, Research and Education (AD-CARE), Department of Psychiatry, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY 14642
| | - Inga M Antonsdottir
- Johns Hopkins School of Nursing, 525 N. Wolfe Street, 21205, Baltimore, MD, USA
- Richman Family Precision Medicine Center of Excellence in Alzheimer's Disease, Department of Psychiatry and Behavioral Sciences, Johns Hopkins Bayview, Johns Hopkins Medicine, Baltimore, MD, USA
| | - Anton P Porsteinsson
- Alzheimer's Disease Care, Research and Education (AD-CARE), Department of Psychiatry, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY 14642
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14
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Wolfe D, Corace K, Butler C, Rice D, Skidmore B, Patel Y, Thayaparan P, Michaud A, Hamel C, Smith A, Garber G, Porath A, Conn D, Willows M, Abramovici H, Thavorn K, Kanji S, Hutton B. Impacts of medical and non-medical cannabis on the health of older adults: Findings from a scoping review of the literature. PLoS One 2023; 18:e0281826. [PMID: 36800328 PMCID: PMC9937508 DOI: 10.1371/journal.pone.0281826] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/31/2023] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Cannabis legalization has enabled increased consumption in older adults. Age-related mental, physical, and physiological changes may lead to differences in effects of cannabis in older adults compared to younger individuals. OBJECTIVE To perform a scoping review to map the evidence regarding the health effects of cannabis use for medical and non-medical purposes in older adults. METHODS Electronic databases (MEDLINE, Embase, PsycINFO, Cochrane Library) were searched for systematic reviews (SRs), randomized controlled trials (RCTs) and non-randomized/observational studies (NRSs) assessing the health effects and associations of cannabis use (medical or non-medical) in adults ≥ 50 years of age. Included studies met age-related inclusion criteria or involved a priori identified health conditions common among older adults. Records were screened using a liberal accelerated approach and data charting was performed independently by two reviewers. Descriptive summaries, structured tables, effect direction plots and bubble plots were used to synthesize study findings. FINDINGS From 31,393 citations, 133 publications describing 134 unique studies (26 SRs, 36 RCTs, 72 NRSs) were included. Medical cannabis had inconsistent therapeutic effects in specific patient conditions (e.g., end-stage cancer, dementia), with a number of studies suggesting possible benefits while others found no benefit. For medical cannabis, harmful associations outnumbered beneficial, and RCTs reported more negative effects than NRSs. Cannabis use was associated with greater frequencies of depression, anxiety, cognitive impairment, substance use and problematic substance use, accidents/injuries, and acute healthcare use. Studies often were small, did not consistently assess harms, and did not adjust for confounding. DISCUSSION The effects of medical cannabis are inconsistent within specific patient conditions. For older adults, generally, the available evidence suggests cannabis use may be associated with greater frequencies of mental health issues, substance use, and acute healthcare use, and the benefit-to-risk ratio is unclear. Studies with a balanced assessment of benefits and harms may guide appropriate public health messaging to balance the marketing pressures of cannabis to older adults.
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Affiliation(s)
- Dianna Wolfe
- Ottawa Hospital Research Institute, Ottawa, Canada
| | - Kim Corace
- Institute of Mental Health Research at The Royal, University of Ottawa, Ottawa, Canada
- Department of Family Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | | | | | | | | | | | - Alan Michaud
- Ottawa Hospital Research Institute, Ottawa, Canada
| | | | - Andra Smith
- School of Psychology, Faculty of Social Sciences, University of Ottawa, Ottawa, Canada
| | - Gary Garber
- Department of Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
| | - Amy Porath
- Canadian Center for Substance Use and Addiction, Ottawa, Canada
| | - David Conn
- Department of Psychiatry, University of Toronto, Toronto, Canada
- Baycrest Health Sciences, Toronto, Canada
| | - Melanie Willows
- Institute of Mental Health Research at The Royal, University of Ottawa, Ottawa, Canada
- Department of Family Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Hanan Abramovici
- Health Canada, Office of Cannabis Science and Surveillance, Ottawa, Canada
| | - Kednapa Thavorn
- Ottawa Hospital Research Institute, Ottawa, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
| | - Salmaan Kanji
- Ottawa Hospital Research Institute, Ottawa, Canada
- Department of Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
| | - Brian Hutton
- Ottawa Hospital Research Institute, Ottawa, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Canada
- * E-mail:
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15
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Blanton H, Reddy PH, Benamar K. Chronic pain in Alzheimer's disease: Endocannabinoid system. Exp Neurol 2023; 360:114287. [PMID: 36455638 PMCID: PMC9789196 DOI: 10.1016/j.expneurol.2022.114287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/09/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022]
Abstract
Chronic pain, one of the most common reasons adults seek medical care, has been linked to restrictions in mobility and daily activities, dependence on opioids, anxiety, depression, sleep deprivation, and reduced quality of life. Alzheimer's disease (AD), a devastating neurodegenerative disorder (characterized by a progressive impairment of cognitive functions) in the elderly, is often co-morbid with chronic pain. AD is one of the most common neurodegenerative disorders in the aged population. The reported prevalence of chronic pain is 45.8% of the 50 million people with AD. As the population ages, the number of older people who experience AD and chronic pain will also increase. The current treatment options for chronic pain are limited, often ineffective, and have associated side effects. This review summarizes the role of the endocannabinoid system in pain, its potential role in chronic pain in AD, and addresses gaps and future directions.
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Affiliation(s)
- Henry Blanton
- Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, School of Medicine, Lubbock, TX 79430, USA
| | - P Hemachandra Reddy
- Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, School of Medicine, Lubbock, TX 79430, USA; Internal Medicine Department, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX 79430, USA
| | - Khalid Benamar
- Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, School of Medicine, Lubbock, TX 79430, USA.
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Abd-Nikfarjam B, Dolati-Somarin A, Baradaran Rahimi V, Askari VR. Cannabinoids in neuroinflammatory disorders: Focusing on multiple sclerosis, Parkinsons, and Alzheimers diseases. Biofactors 2023. [PMID: 36637897 DOI: 10.1002/biof.1936] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/29/2022] [Indexed: 01/14/2023]
Abstract
The medicinal properties of cannabis and cannabinoid-derivative are entirely investigated and known. In addition, the identification of psychotropic plant cannabinoids has led to more studies regarding the cannabinoid system and its therapeutic features in the treatment and management of clinical symptoms of neuroinflammatory disorders, such as multiple sclerosis (MS), Parkinsons disease (PD), and Alzheimers disease (AD). In fact, cannabinoid agonists are able to control and regulate inflammatory responses. In contrast to the cannabinoid receptor type 1 (CB1) and its unwanted adverse effects, the cannabinoid receptor type 2 (CB2) and its ligands hold promise for new and effective therapeutic approaches. So far, some successes have been achieved in this field. This review will discuss an outline of the endocannabinoid system's involvement in neuroinflammatory disorders. Moreover, the pharmacological efficacy of different natural and synthetic preparations of phytocannabinoids acting on cannabinoid receptors, particularly in MS, PD, and AD, will be updated. Also, the reasons for targeting CB2 for neurodegeneration will be explained.
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Affiliation(s)
- Bahareh Abd-Nikfarjam
- Department of Immunology, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | | | - Vafa Baradaran Rahimi
- Department of Cardiovascular Diseases, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Reza Askari
- International UNESCO Center for Health-Related Basic Sciences and Human Nutrition, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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17
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Velzeboer R, Malas A, Boerkoel P, Cullen K, Hawkins M, Roesler J, Lai WWK. Cannabis dosing and administration for sleep: a systematic review. Sleep 2022; 45:6701617. [PMID: 36107800 DOI: 10.1093/sleep/zsac218] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/01/2022] [Indexed: 01/31/2023] Open
Abstract
STUDY OBJECTIVES As cannabis is increasingly used to treat sleep disorders, we performed a systematic review to examine the effects of cannabis on sleep and to guide cannabis prescribers in their recommendations to patients, specifically focusing on dosing. METHODS We searched EMBASE, Medline, and Web of Science and identified 4550 studies for screening. Five hundred sixty-eight studies were selected for full-text review and 31 were included for analysis. Study results were considered positive based on improvements in sleep architecture or subjective sleep quality. Bias in randomized controlled trials was assessed using Cochrane Risk of Bias tool 2.0. RESULTS Sleep improvements were seen in 7 out of 19 randomized studies and in 7 out of 12 uncontrolled trials. There were no significant differences between the effects of tetrahydrocannabinol and cannabidiol. Cannabis showed most promise at improving sleep in patients with pain-related disorders, as compared to those with neurologic, psychiatric, or sleep disorders, and showed no significant effects on healthy participants' sleep. While subjective improvements in sleep quality were often observed, diagnostic testing showed no improvements in sleep architecture. Adverse events included headaches, sedation, and dizziness, and occurred more frequently at higher doses, though no serious adverse events were observed. CONCLUSION High-quality evidence to support cannabis use for sleep remains limited. Heterogeneity in cannabis types, doses, timing of administration, and sleep outcome measures limit the ability to make specific dosing recommendations.
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Affiliation(s)
- Rob Velzeboer
- Clinical Research, Tranq Sleep Care , Kelowna, British Columbia, Canada
| | - Adeeb Malas
- Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Pierre Boerkoel
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Katie Cullen
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Michelle Hawkins
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jordanna Roesler
- Department of Dermatology, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Wayne Wei-Ku Lai
- Medical Director, Tranq Sleep Care, Kelowna, British Columbia, Canada.,Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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18
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The Therapeutic Potential of the Endocannabinoid System in Age-Related Diseases. Biomedicines 2022; 10:biomedicines10102492. [PMID: 36289755 PMCID: PMC9599275 DOI: 10.3390/biomedicines10102492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/24/2022] [Accepted: 10/03/2022] [Indexed: 11/25/2022] Open
Abstract
The endocannabinoid system (ECS) dynamically regulates many aspects of mammalian physiology. ECS has gained substantial interest since growing evidence suggests that it also plays a major role in several pathophysiological conditions due to its ability to modulate various underlying mechanisms. Furthermore, cannabinoids, as components of the cannabinoid system (CS), have proven beneficial effects such as anti-inflammatory, immunomodulatory, neuromodulatory, antioxidative, and cardioprotective effects. In this comprehensive review, we aimed to describe the complex interaction between CS and most common age-related diseases such as neuro-degenerative, oncological, skeletal, and cardiovascular disorders, together with the potential of various cannabinoids to ameliorate the progression of these disorders. Since chronic inflammation is postulated as the pillar of all the above-mentioned medical conditions, we also discuss in this paper the potential of CS to ameliorate aging-associated immune system dysregulation.
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19
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Hermush V, Ore L, Stern N, Mizrahi N, Fried M, Krivoshey M, Staghon E, Lederman VE, Bar-Lev Schleider L. Effects of rich cannabidiol oil on behavioral disturbances in patients with dementia: A placebo controlled randomized clinical trial. Front Med (Lausanne) 2022; 9:951889. [PMID: 36148467 PMCID: PMC9486160 DOI: 10.3389/fmed.2022.951889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundAlmost 90% of patients with dementia suffer from some type of neurobehavioral symptom, and there are no approved medications to address these symptoms.ObjectiveTo evaluate the safety and efficacy of the medical cannabis oil “Avidekel” for the reduction of behavioral disturbances among patients with dementia.Materials and methodsIn this randomized, double-blind, single-cite, placebo-controlled trial conducted in Israel (ClinicalTrials.gov: NCT03328676), patients aged at least 60, with a diagnosis of major neurocognitive disorder and associated behavioral disturbances were randomized 2:1 to receive either “Avidekel,” a broad-spectrum cannabis oil (30% cannabidiol and 1% tetrahydrocannabinol: 295 mg and 12.5 mg per ml, respectively; n = 40) or a placebo oil (n = 20) three times a day for 16 weeks. The primary outcome was a decrease, as compared to baseline, of four or more points on the Cohen-Mansfield Agitation Inventory score by week 16.ResultsFrom 60 randomized patients [mean age, 79.4 years; 36 women (60.0%)], 52 (86.7%) completed the trial (all eight patients who discontinued treatment were from the investigational group). There was a statistically significant difference in the proportion of subjects who had a Cohen-Mansfield Agitation Inventory score reduction of ≥ 4 points at week 16: 24/40 (60.0%) and 6/20 (30.0%) for investigational and control groups, respectively (χ2 = 4.80, P = 0.03). There was a statistically significant difference in the proportion of subjects who had a Cohen-Mansfield Agitation Inventory score reduction of ≥ 8 points at week 16: 20/40 (50%) and 3/20 (15%), respectively (χ2 = 6.42, P = 0.011). The ANOVA repeated measures analysis demonstrated significantly more improvement in the investigational group compared to the control group at weeks 14 and 16 (F = 3.18, P = 0.02). Treatment was mostly safe, with no significant differences in the occurrence of adverse events between the two groups.ConclusionIn this randomized controlled trial, ‘Avidekel’ oil significantly reduced agitation over placebo in patients suffering from behavioral disturbances related to dementia, with non-serious side-effects. Further research is required with a larger sample size.
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Affiliation(s)
- Vered Hermush
- Geriatric Wing, Laniado Hospital, Netanya, Israel
- Technion School of Medicine, Haifa, Israel
- *Correspondence: Vered Hermush,
| | - Liora Ore
- Department of Graduate Studies in Health Systems Management, The Max Stern Yezreel Valley College, Jezreel Valley, Israel
| | - Noa Stern
- Geriatric Wing, Laniado Hospital, Netanya, Israel
- Technion School of Medicine, Haifa, Israel
| | | | - Malki Fried
- Geriatric Wing, Laniado Hospital, Netanya, Israel
| | | | - Ella Staghon
- Geriatric Wing, Laniado Hospital, Netanya, Israel
| | | | - Lihi Bar-Lev Schleider
- Research Department, Tikun-Olam Cannbit Pharmaceuticals, Tel Aviv, Israel
- Clinical Research Center, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Be’er Sheva, Israel
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20
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Coles M, Steiner-Lim GZ, Karl T. Therapeutic properties of multi-cannabinoid treatment strategies for Alzheimer’s disease. Front Neurosci 2022; 16:962922. [PMID: 36117622 PMCID: PMC9479694 DOI: 10.3389/fnins.2022.962922] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/10/2022] [Indexed: 12/02/2022] Open
Abstract
Alzheimer’s disease (AD) is a debilitating neurodegenerative disease characterized by declining cognition and behavioral impairment, and hallmarked by extracellular amyloid-β plaques, intracellular neurofibrillary tangles (NFT), oxidative stress, neuroinflammation, and neurodegeneration. There is currently no cure for AD and approved treatments do not halt or slow disease progression, highlighting the need for novel therapeutic strategies. Importantly, the endocannabinoid system (ECS) is affected in AD. Phytocannabinoids, including cannabidiol (CBD) and Δ9-tetrahydrocannabinol (THC), interact with the ECS, have anti-inflammatory, antioxidant, and neuroprotective properties, can ameliorate amyloid-β and NFT-related pathologies, and promote neurogenesis. Thus, in recent years, purified CBD and THC have been evaluated for their therapeutic potential. CBD reversed and prevented the development of cognitive deficits in AD rodent models, and low-dose THC improved cognition in aging mice. Importantly, CBD, THC, and other phytochemicals present in Cannabis sativa interact with each other in a synergistic fashion (the “entourage effect”) and have greater therapeutic potential when administered together, rather than individually. Thus, treatment of AD using a multi-cannabinoid strategy (such as whole plant cannabis extracts or particular CBD:THC combinations) may be more efficacious compared to cannabinoid isolate treatment strategies. Here, we review the current evidence for the validity of using multi-cannabinoid formulations for AD therapy. We discuss that such treatment strategies appear valid for AD therapy but further investigations, particularly clinical studies, are required to determine optimal dose and ratio of cannabinoids for superior effectiveness and limiting potential side effects. Furthermore, it is pertinent that future in vivo and clinical investigations consider sex effects.
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Affiliation(s)
- Madilyn Coles
- School of Medicine, Western Sydney University, Campbelltown, NSW, Australia
| | - Genevieve Z. Steiner-Lim
- NICM Health Research Institute and Translational Health Research Institute (THRI), Western Sydney University, Penrith, NSW, Australia
| | - Tim Karl
- School of Medicine, Western Sydney University, Campbelltown, NSW, Australia
- Neuroscience Research Australia, Randwick, NSW, Australia
- *Correspondence: Tim Karl,
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21
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NAbiximols Clinical Translation To the treatment of Pain and Agitation In Severe Dementia (NACTOPAISD): Clinical trial protocol. Biomed Pharmacother 2022; 153:113488. [DOI: 10.1016/j.biopha.2022.113488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/17/2022] [Accepted: 07/27/2022] [Indexed: 11/21/2022] Open
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22
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Bartschi JG, Greenwood LM, Montgomery A, Dortants L, Weston-Green K, Huang XF, Pai N, Potter J, Schira MM, Croft R, Solowij N. Cannabidiol as a Treatment for Neurobiological, Behavioral, and Psychological Symptoms in Early-Stage Dementia: A Double-Blind, Placebo-Controlled Clinical Trial Protocol. Cannabis Cannabinoid Res 2022; 8:348-359. [PMID: 36040362 DOI: 10.1089/can.2021.0209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Rationale: The slowing of disease progression in dementia in the early stages of diagnosis is paramount to improving the quality of life for those diagnosed and their support networks. Accumulating evidence suggests that CBD, a constituent of Cannabis sativa, is associated with neuroprotective, neuroendocrine, and psychotherapeutic effects, suggesting that it may be beneficial to dementia treatment. However, no published human study to date has examined this possibility. This trial aims to determine whether daily treatment with CBD over a 12-week period is associated with improved neurobiological, behavioral, and psychological outcomes in individuals living with early-stage dementia. Methods: Sixty participants with early-stage dementia will be recruited for a randomized, double-blind, placebo-controlled clinical trial. Participants will be randomized into either 99.9% pure CBD or placebo treatment conditions and administered two capsules per day for 12 weeks. Participants will commence a 200 mg/day dose for 2 weeks before escalating to 300 mg/day for the remaining 10 weeks. Neuroimaging and blood-based neuroendocrine profiles will be assessed at baseline and post-treatment. Psychological and behavioral symptoms will be assessed at baseline, 6 weeks, and post-treatment. Monitoring of health and side-effects will be conducted through weekly home visits. Discussion: This study is among the first to investigate the effects of isolated CBD in improving neuroanatomical and neuroendocrine changes, alongside psychological symptoms, during the early stages of dementia diagnosis. The outcomes of this trial have the capacity to inform a potential novel and accessible treatment approach for individuals living with early-stage dementia, and in turn, improve quality of life, prognoses, and treatment outcomes. Trial Registration: This trial has been registered with the Therapeutic Goods Administration (CT-2020-CTN-03849-1v2) and the Australian and New Zealand Clinical Trials Registry (ACTRN12621001364864).
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Affiliation(s)
- Jessica G Bartschi
- School of Psychology, Faculty of the Arts, Social Sciences and Humanities, University of Wollongong, Wollongong, Australia.,Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia.,Australian Center for Cannabinoid Clinical and Research Excellence (ACRE), New Lambton Heights, Australia
| | - Lisa-Marie Greenwood
- Australian Center for Cannabinoid Clinical and Research Excellence (ACRE), New Lambton Heights, Australia.,Research School of Psychology, The Australian National University, Canberra, Australia
| | - Amy Montgomery
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia.,School of Nursing, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia
| | - Lon Dortants
- School of Psychology, Faculty of the Arts, Social Sciences and Humanities, University of Wollongong, Wollongong, Australia.,Australian Center for Cannabinoid Clinical and Research Excellence (ACRE), New Lambton Heights, Australia
| | - Katrina Weston-Green
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia.,Australian Center for Cannabinoid Clinical and Research Excellence (ACRE), New Lambton Heights, Australia.,School of Medicine and Molecular Horizons, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia
| | - Xu-Feng Huang
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia.,Australian Center for Cannabinoid Clinical and Research Excellence (ACRE), New Lambton Heights, Australia.,School of Medicine and Molecular Horizons, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia
| | - Nagesh Pai
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia.,School of Medicine and Molecular Horizons, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia.,Southern Hospitals Network, Illawarra-Shoalhaven Local Health District, Warrawong, Australia
| | - Jan Potter
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia.,School of Medicine and Molecular Horizons, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia.,Southern Hospitals Network, Illawarra-Shoalhaven Local Health District, Warrawong, Australia
| | - Mark M Schira
- School of Psychology, Faculty of the Arts, Social Sciences and Humanities, University of Wollongong, Wollongong, Australia
| | - Rodney Croft
- School of Psychology, Faculty of the Arts, Social Sciences and Humanities, University of Wollongong, Wollongong, Australia.,Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia
| | - Nadia Solowij
- School of Psychology, Faculty of the Arts, Social Sciences and Humanities, University of Wollongong, Wollongong, Australia.,Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia.,Australian Center for Cannabinoid Clinical and Research Excellence (ACRE), New Lambton Heights, Australia
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23
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Jiang H, Yin X. Association between community psychological label and user portrait model based on multimodal neural network. Front Psychol 2022; 13:918274. [PMID: 36092110 PMCID: PMC9449543 DOI: 10.3389/fpsyg.2022.918274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
By analyzing traditional deep learning multimode retrieval methods, an optimized multimode retrieval model based on convolutional neural network is established. This article proposes an innovative semi-supervised social network user portrait analysis model (UPAM) based on user portrait model, which integrates users’ social information and some known user attribute information (such as educational background and residence) into a unified topic model framework. Finally, a semi-supervised user portrait analysis method based on user social information and partial known user attribute information is proposed. According to the correlation of user attributes, the cross-validation method is used to train model prediction task and improve the prediction effect. In the first-level model, using a different model to extract the features in the user query, the basis of the second hierarchy model, Stacking is used to further integrate characteristics, finally realizing the attribute population forecast, and experimental verification showing the proposed model’s effectiveness in various attributes of a population.
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Affiliation(s)
- Hao Jiang
- School of Economics, Zhejiang Gongshang University, Hangzhou, China
| | - Xuehong Yin
- School of Accounting, Zhejiang Gongshang University, Hangzhou, China
- *Correspondence: Xuehong Yin,
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24
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Jacobs RJ, Colon J, Kane MN. Medical Students’ Attitudes, Knowledge, and Beliefs about Medical Cannabis: A Qualitative Descriptive Study. Cureus 2022; 14:e28336. [PMID: 36168342 PMCID: PMC9502535 DOI: 10.7759/cureus.28336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 08/24/2022] [Indexed: 11/25/2022] Open
Abstract
Background There has been increased attention given to understanding the uses of medical cannabis (MC) for symptom management of various medical conditions. Physicians receive minimal training in medical school and rely mostly on anecdotal evidence; by proxy, medical students generally do receive formal training in MC. It is unknown how medical students perceive MC, including its efficacy, appropriateness in medicine, its possible adverse effects, and its value for patients. This study investigated medical students’ perceived knowledge, beliefs, and attitudes toward MC to better understand their knowledge about and attitudes toward MC. Method Using a semi-structured interview guide, eight focus groups were conducted with 83 medical students via Zoom virtual meeting platform (Zoom Video Communications, Inc., San Jose, California, United States) in June 2022. The interviews were guided by the following content areas: (1) beliefs about cannabis' therapeutic utility, (2) perceived knowledge about MC, (3) the role of the physician regarding MC, (4) concern for cannabis’ adverse effects, and (5) MC education in the school curriculum. Data were analyzed using thematic analysis, an iterative, systematic process of coding patterns, and emerged themes in the interview data to explore medical students’ perceptions about MC. Themes were validated based on whether each theme captured distinct parts of the interview data and whether their content cohered meaningfully. Results Four themes emerged from the focus group interviews investigating medical students’ perceptions of MC: (1) erroneous beliefs about MC, (2) unreliable sources of information, (3) mixed attitudes toward legalization, and (4) desire for MC education while in medical school. Attitudes regarding MC in general, including legalization, varied by United States state of origin of the student and exposure to MC (e.g., use by family member). Conclusion MC seems to be a significant issue for medical trainees who might be required to recommend it to patients and manage coexisting therapies. Cultivating new knowledge about students’ perceptions and perceived knowledge about medicinal options and dosing of MC is critical for medical educators as they design undergraduate curricular initiatives for future physicians.
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25
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Paes-Colli Y, Aguiar AFL, Isaac AR, Ferreira BK, Campos RMP, Trindade PMP, de Melo Reis RA, Sampaio LS. Phytocannabinoids and Cannabis-Based Products as Alternative Pharmacotherapy in Neurodegenerative Diseases: From Hypothesis to Clinical Practice. Front Cell Neurosci 2022; 16:917164. [PMID: 35707521 PMCID: PMC9189313 DOI: 10.3389/fncel.2022.917164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/10/2022] [Indexed: 11/19/2022] Open
Abstract
Historically, Cannabis is one of the first plants to be domesticated and used in medicine, though only in the last years the amount of Cannabis-based products or medicines has increased worldwide. Previous preclinical studies and few published clinical trials have demonstrated the efficacy and safety of Cannabis-based medicines in humans. Indeed, Cannabis-related medicines are used to treat multiple pathological conditions, including neurodegenerative disorders. In clinical practice, Cannabis products have already been introduced to treatment regimens of Alzheimer’s disease, Parkinson’s disease and Multiple Sclerosis’s patients, and the mechanisms of action behind the reported improvement in the clinical outcome and disease progression are associated with their anti-inflammatory, immunosuppressive, antioxidant, and neuroprotective properties, due to the modulation of the endocannabinoid system. In this review, we describe the role played by the endocannabinoid system in the physiopathology of Alzheimer, Parkinson, and Multiple Sclerosis, mainly at the neuroimmunological level. We also discuss the evidence for the correlation between phytocannabinoids and their therapeutic effects in these disorders, thus describing the main clinical studies carried out so far on the therapeutic performance of Cannabis-based medicines.
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Affiliation(s)
- Yolanda Paes-Colli
- Instituto de Biofísica Carlos Chagas Filho (IBCCF), Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Andrey F. L. Aguiar
- Instituto de Biofísica Carlos Chagas Filho (IBCCF), Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alinny Rosendo Isaac
- Instituto de Bioquímica Médica Leopoldo De Meis (IBqM), Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bruna K. Ferreira
- Instituto de Bioquímica Médica Leopoldo De Meis (IBqM), Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Raquel Maria P. Campos
- Instituto de Biofísica Carlos Chagas Filho (IBCCF), Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Priscila Martins Pinheiro Trindade
- Instituto de Biofísica Carlos Chagas Filho (IBCCF), Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ricardo Augusto de Melo Reis
- Instituto de Biofísica Carlos Chagas Filho (IBCCF), Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luzia S. Sampaio
- Instituto de Biofísica Carlos Chagas Filho (IBCCF), Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- *Correspondence: Luzia S. Sampaio,
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26
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Lacroix C, Alleman-Brimault I, Zalta A, Rouby F, Cassé-Perrot C, Jouve E, Attolini L, Guilhaumou R, Micallef J, Blin O. What Do We Know About Medical Cannabis in Neurological Disorders and What Are the Next Steps? Front Pharmacol 2022; 13:883987. [PMID: 35571129 PMCID: PMC9091192 DOI: 10.3389/fphar.2022.883987] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
Medical use of cannabis has been receiving growing attention over the last few decades in modern medicine. As we know that the endocannabinoid system is largely involved in neurological disorders, we focused on the scientific rationale of medical cannabis in three neurological disorders: amyotrophic lateral sclerosis, Parkinson’s disease, and Alzheimer’s disease through pharmacological plausibility, clinical studies, and patients’ view. Clinical studies (randomized controlled trials, open-label studies, cohorts, and case reports) exploring medical cannabis in these disorders show different results depending on the methods and outcomes. Some show benefits on motor symptoms and others on non-motor symptoms and quality of life. Concerning patients’ view, several web surveys were collected, highlighting the real use of cannabis to relieve symptoms of neurological disorders, mostly outside a medical pathway. This anarchic use keeps questioning particularly in terms of risks: consumption of street cannabis, drug–drug interactions with usual medical treatment, consideration of medical history, and adverse reactions (psychiatric, respiratory, cardiovascular disorders, etc.), underlining the importance of a medical supervision. To date, most scientific data support the therapeutic potential of cannabis in neurological disorders. As far as patients and patients’ associations are calling for it, there is an urgent need to manage clinical studies to provide stronger evidence and secure medical cannabis use.
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Affiliation(s)
- Clémence Lacroix
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Isabelle Alleman-Brimault
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Arnaud Zalta
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Frank Rouby
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Catherine Cassé-Perrot
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Elisabeth Jouve
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Laurence Attolini
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Romain Guilhaumou
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Joëlle Micallef
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
| | - Olivier Blin
- APHM, INSERM, Inst Neurosci Syst, UMR 1106, Aix Marseille Univ, University Hospital Federation DHUNE, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France
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27
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Bahji A, Breward N, Duff W, Absher N, Patten SB, Alcorn J, Mousseau DD. Cannabinoids in the management of behavioral, psychological, and motor symptoms of neurocognitive disorders: a mixed studies systematic review. J Cannabis Res 2022; 4:11. [PMID: 35287749 PMCID: PMC8922797 DOI: 10.1186/s42238-022-00119-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 02/07/2022] [Indexed: 12/30/2022] Open
Abstract
Abstract
Aim
We undertook this systematic review to determine the efficacy and safety of cannabis-based medicine as a treatment for behavioral, psychological, and motor symptoms associated with neurocognitive disorders.
Methods
We conducted a PRISMA-guided systematic review to identify studies using cannabis-based medicine to treat behavioral, psychological, and motor symptoms among individuals with Alzheimer's disease (AD) dementia, Parkinson’s disease (PD), and Huntington’s disease (HD). We considered English-language articles providing original data on three or more participants, regardless of design.
Findings
We identified 25 studies spanning 1991 to 2021 comprised of 14 controlled trials, 5 pilot studies, 5 observational studies, and 1 case series. In most cases, the cannabinoids tested were dronabinol, whole cannabis, and cannabidiol, and the diagnoses included AD (n = 11), PD (n = 11), and HD (n = 3). Primary outcomes were motor symptoms (e.g., dyskinesia), sleep disturbance, cognition, balance, body weight, and the occurrence of treatment-emergent adverse events.
Conclusions
A narrative summary of the findings from the limited number of studies in the area highlights an apparent association between cannabidiol-based products and relief from motor symptoms in HD and PD and an apparent association between synthetic cannabinoids and relief from behavioral and psychological symptoms of dementia across AD, PD, and HD. These preliminary conclusions could guide using plant-based versus synthetic cannabinoids as safe, alternative treatments for managing neuropsychiatric symptoms in neurocognitive vulnerable patient populations.
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28
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Pautex S, Bianchi F, Daali Y, Augsburger M, de Saussure C, Wampfler J, Curtin F, Desmeules J, Broers B. Cannabinoids for behavioral symptoms in severe dementia: Safety and feasibility in a long-term pilot observational study in nineteen patients. Front Aging Neurosci 2022; 14:957665. [PMID: 36247984 PMCID: PMC9557769 DOI: 10.3389/fnagi.2022.957665] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/07/2022] [Indexed: 11/20/2022] Open
Abstract
Context The management of behavioral symptoms and rigidity in patients with dementia constitutes a significant challenge. Short-term studies suggest an interest in the use of medical cannabis, but long-term data are lacking. Objectives The objective of this study was to investigate the feasibility and long-term safety of administering tetrahydrocannabinol/cannabidiol (THC/CBD) treatment as an additional drug to a poly medicated population with severe dementia, evaluate clinical improvements, and collect information on the pharmacokinetics of cannabinoids and possible drug-drug interactions. Methods A prospective observational study of patients with severe dementia living in a long-term care home to whom the physicians had prescribed a medical cannabis treatment. Data were collected over 2 years. We assessed the changes in medical cannabis dosages, safety parameters, variations in neuropsychiatric problems, agitation, rigidity, the most invalidating daily activity, and disabling behavior trouble scores. We evaluated the pharmacokinetics of cannabinoids by measuring plasma levels and analyzing the enzymatic activity. Results We assessed 19 patients (81.4 years-17 women and two men) receiving an average of 12.4 mg THC/24.8 mg CBD per day for up to 13 months, with no reported problems related to the treatment and limited adverse drug reactions. Clinical scores showed a marked improvement that was stable over time, deprescription of other medications, and care facilitated. The pharmacokinetic evaluation showed an expected slight reduction in the enzymatic activity of CYP1A2 and CYP2C19. Conclusion A long-term THC/CBD (1:2) medication can be administered safely and with overall positive clinical improvement to poly medicated older adults with severe dementia and associated problems. The results must be confirmed in a randomized trial.
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Affiliation(s)
- Sophie Pautex
- Palliative Medicine Division, Department of Rehabilitation and Geriatrics, Geneva University Hospitals, Geneva, Switzerland
- Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Federica Bianchi
- Palliative Medicine Division, Department of Rehabilitation and Geriatrics, Geneva University Hospitals, Geneva, Switzerland
- Long-Term Care Home “les Tilleuls”, Fondation pour l’Accueil et l’Hébergement de Personnes Âgées, Geneva, Switzerland
- *Correspondence: Federica Bianchi, ,
| | - Youssef Daali
- Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Clinical Pharmacology and Toxicology Division, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, Geneva, Switzerland
| | - Marc Augsburger
- Unit of Forensic Toxicology and Chemistry, University Centre of Legal Medicine Lausanne-Geneva, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
- Geneva University Hospital, University of Geneva, Geneva, Switzerland
| | - Christian de Saussure
- Long-Term Care Home “les Tilleuls”, Fondation pour l’Accueil et l’Hébergement de Personnes Âgées, Geneva, Switzerland
| | - James Wampfler
- Long-Term Care Home “les Tilleuls”, Fondation pour l’Accueil et l’Hébergement de Personnes Âgées, Geneva, Switzerland
| | - François Curtin
- Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Clinical Pharmacology and Toxicology Division, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Jules Desmeules
- Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Clinical Pharmacology and Toxicology Division, Department of Anaesthesiology, Pharmacology, Intensive Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, Geneva, Switzerland
| | - Barbara Broers
- Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Primary Care Division, Geneva University Hospitals, Geneva, Switzerland
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29
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Outen JD, Burhanullah H, Vandrey R, Amjad H, Harper DG, Patrick RE, May RL, Agronin ME, Forester BP, Rosenberg PB. Cannabinoids for Agitation in Alzheimer's Disease. Am J Geriatr Psychiatry 2021; 29:1253-1263. [PMID: 33573996 PMCID: PMC8313629 DOI: 10.1016/j.jagp.2021.01.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 10/22/2022]
Abstract
Agitation is a common neuropsychiatric symptom of Alzheimer's disease (AD) that greatly impacts quality of life and amplifies caregiver burden. Agitation in AD may be associated with volume loss in the anterior cingulate cortex, posterior cingulate cortex, insula, amygdala, and frontal cortex, as well as with degeneration of monoaminergic neurotransmission, disrupted circadian rhythms, and frailty. Current pharmacologic options have troubling safety concerns and only modest efficacy. There is increasing interest in cannabinoids as promising agents due to preclinical and early clinical research that suggest cannabinoids can elicit anxiolytic, antidepressant, and/or anti-inflammatory effects. Cannabinoids may relieve agitation by regulating neurotransmitters, improving comorbidities and circadian rhythms, and increasing cerebral circulation. Here we discuss the possible contributory mechanisms for agitation in AD and the therapeutic relevance of cannabinoids, including CBD and THC.
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Affiliation(s)
- John D. Outen
- Department of Psychiatry & Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Haroon Burhanullah
- Department of Psychiatry & Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Ryan Vandrey
- Behavioral Pharmacology Research, Johns Hopkins University School of Medicine
| | - Halima Amjad
- Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine
| | - David G. Harper
- Division of Geriatric Psychiatry, McLean Hospital,Department of Psychiatry, Harvard Medical School
| | - Regan E. Patrick
- Division of Geriatric Psychiatry, McLean Hospital,Department of Psychiatry, Harvard Medical School
| | - Rose L. May
- Division of Geriatric Psychiatry, McLean Hospital
| | - Marc E. Agronin
- Department of Mental Health and Clinical Research, Miami Jewish Health
| | - Brent P. Forester
- Division of Geriatric Psychiatry, McLean Hospital,Department of Psychiatry, Harvard Medical School
| | - Paul B. Rosenberg
- Department of Psychiatry & Behavioral Sciences, Johns Hopkins University School of Medicine
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30
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de Melo Reis RA, Isaac AR, Freitas HR, de Almeida MM, Schuck PF, Ferreira GC, Andrade-da-Costa BLDS, Trevenzoli IH. Quality of Life and a Surveillant Endocannabinoid System. Front Neurosci 2021; 15:747229. [PMID: 34776851 PMCID: PMC8581450 DOI: 10.3389/fnins.2021.747229] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/01/2021] [Indexed: 12/11/2022] Open
Abstract
The endocannabinoid system (ECS) is an important brain modulatory network. ECS regulates brain homeostasis throughout development, from progenitor fate decision to neuro- and gliogenesis, synaptogenesis, brain plasticity and circuit repair, up to learning, memory, fear, protection, and death. It is a major player in the hypothalamic-peripheral system-adipose tissue in the regulation of food intake, energy storage, nutritional status, and adipose tissue mass, consequently affecting obesity. Loss of ECS control might affect mood disorders (anxiety, hyperactivity, psychosis, and depression), lead to drug abuse, and impact neurodegenerative (Alzheimer's, Parkinson, Huntington, Multiple, and Amyotrophic Lateral Sclerosis) and neurodevelopmental (autism spectrum) disorders. Practice of regular physical and/or mind-body mindfulness and meditative activities have been shown to modulate endocannabinoid (eCB) levels, in addition to other players as brain-derived neurotrophic factor (BDNF). ECS is involved in pain, inflammation, metabolic and cardiovascular dysfunctions, general immune responses (asthma, allergy, and arthritis) and tumor expansion, both/either in the brain and/or in the periphery. The reason for such a vast impact is the fact that arachidonic acid, a precursor of eCBs, is present in every membrane cell of the body and on demand eCBs synthesis is regulated by electrical activity and calcium shifts. Novel lipid (lipoxins and resolvins) or peptide (hemopressin) players of the ECS also operate as regulators of physiological allostasis. Indeed, the presence of cannabinoid receptors in intracellular organelles as mitochondria or lysosomes, or in nuclear targets as PPARγ might impact energy consumption, metabolism and cell death. To live a better life implies in a vigilant ECS, through healthy diet selection (based on a balanced omega-3 and -6 polyunsaturated fatty acids), weekly exercises and meditation therapy, all of which regulating eCBs levels, surrounded by a constructive social network. Cannabidiol, a diet supplement has been a major player with anti-inflammatory, anxiolytic, antidepressant, and antioxidant activities. Cognitive challenges and emotional intelligence might strengthen the ECS, which is built on a variety of synapses that modify human behavior. As therapeutically concerned, the ECS is essential for maintaining homeostasis and cannabinoids are promising tools to control innumerous targets.
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Affiliation(s)
- Ricardo Augusto de Melo Reis
- Laboratory of Neurochemistry, Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alinny Rosendo Isaac
- Laboratory of Neurochemistry, Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Hércules Rezende Freitas
- Laboratory of Neuroenergetics and Inborn Errors of Metabolism, Institute of Medical Biochemistry Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mariana Macedo de Almeida
- Laboratory of Molecular Endocrinology, Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Patricia Fernanda Schuck
- Laboratory of Neuroenergetics and Inborn Errors of Metabolism, Institute of Medical Biochemistry Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gustavo Costa Ferreira
- Laboratory of Neuroenergetics and Inborn Errors of Metabolism, Institute of Medical Biochemistry Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Isis Hara Trevenzoli
- Laboratory of Molecular Endocrinology, Institute of Biophysics Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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31
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Verma R, Hoda F, Arshad M, Iqubal A, Siddiqui AN, Khan MA, Haque SE, Akhtar M, Najmi AK. Cannabis, a Miracle Drug with Polyvalent Therapeutic Utility: Preclinical and Clinical-Based Evidence. Med Cannabis Cannabinoids 2021; 4:43-60. [PMID: 34676349 DOI: 10.1159/000515042] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/04/2021] [Indexed: 12/25/2022] Open
Abstract
Cannabis sativa L. is an annual herbaceous dioecious plant which was first cultivated by agricultural human societies in Asia. Over the period of time, various parts of the plant like leaf, flower, and seed were used for recreational as well as therapeutic purposes. The main chemical components of Cannabis sativa are termed as cannabinoids, among them the key psychoactive constituent is Δ-9-tetrahydrocannabinol and cannabidiol (CBD) as active nonpsychotic constituent. Upon doing extensive literature review, it was found that cannabis has been widely studied for a number of disorders. Very recently, a pure CBD formulation, named Epidiolex, got a green flag from both United States Food and Drug Administration and Drug Enforcement Administration for 2 rare types of epilepsies. This laid a milestone in medical cannabis research. This review intends to give a basic and extensive assessment, from past till present, of the ethnological, plant, chemical, pharmacological, and legal aspects of C. sativa. Further, this review contemplates the evidence the studies obtained of cannabis components on Alzheimer's, Parkinson's, amyotrophic lateral sclerosis, multiple sclerosis, emesis, epilepsy, chronic pain, and cancer as a cytotoxic agent as well as a palliative therapy. The assessment in this study was done by reviewing in extensive details from studies on historical importance, ethnopharmacological aspects, and legal grounds of C. sativa from extensive literature available on the scientific databases, with a vision for elevating further pharmaceutical research to investigate its total potential as a therapeutic agent.
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Affiliation(s)
- Rishabh Verma
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Farazul Hoda
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Mawrah Arshad
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Asif Iqubal
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Ali Nasir Siddiqui
- Department of Pharmaceutical Medicine, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Mohammad Ahmed Khan
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Syed Ehtaishamul Haque
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Mohd Akhtar
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Abul Kalam Najmi
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
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32
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Pisani S, McGoohan K, Velayudhan L, Bhattacharyya S. Safety and Tolerability of Natural and Synthetic Cannabinoids in Older Adults: A Systematic Review and Meta-Analysis of Open-Label Trials and Observational Studies. Drugs Aging 2021; 38:887-910. [PMID: 34235645 DOI: 10.1007/s40266-021-00882-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2021] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND OBJECTIVE Although cannabinoid-based medications are increasingly used by older adults, their safety and tolerability in this age group remain unclear. The purpose of this systematic review was to examine the safety and tolerability of cannabinoid-based medications by conducting a meta-analysis of open-label observational studies of cannabinoid-based medications for all indications in individuals with a mean age of ≥50 years. METHODS A systematic search was conducted on PubMed, PsycINFO, MEDLINE, EMBASE and CINHAL. Study quality was assessed using an adapted version of the Grading of Recommendations Assessment, Development and Evaluation criteria and Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines were followed. We included studies that (a) were published from 1990 onwards; (b) included older adults (mean age ≥50 years); and (c) provided data on the safety and tolerability of medical cannabinoids. Data were pooled using a random-effects approach. Risk of adverse events, serious adverse events and withdrawals was computed as the incidence rate (IR). Separate analyses were conducted by the cannabinoid-based medication used, for delta-9-tetrahydrocannabinol (THC), cannabidiol (CBD) and a combination of THC and CBD (THC:CBD). RESULTS Thirty-eight studies were identified (THC = 23; CBD = 6; THC:CBD = 9; N = 2341, mean age: 63.19 ± 8.08 years, men: 53.86%). THC had a very low incidence of all-cause and treatment-related adverse events (IR: 122.18, 95% confidence interval [CI] 38.23-253.56; IR: 84.76, 95% CI 0.13-326.01, respectively) and negligible serious adverse events (IR = 0). Similar IRs for CBD (all cause, IR: 111.91, 95% CI 1.24-495.93; treatment related, IR: 1.76, 95% CI 4.63-23.05) and no serious adverse events (IR = 0). CBD was not associated with a risk of treatment-related withdrawals. THC had a low risk of all-cause and treatment-related withdrawals (IR: 25.18, 95% CI 12.35-42.52; IR: 7.83, 95% CI 3.26-14.38, respectively). The THC:CBD treatment had a low risk of all-cause and treatment-related adverse events (IR: 100.72, 95% CI 0.25-383.00; IR: 55.38, 95% CI 8.61-142.80, respectively), but reported a risk of all-cause and treatment-related serious adverse events (IR: 21.32, 95% CI 0.18-93.26; IR: 3.71, 95% CI 0.21-11.56, respectively), and all-cause and treatment-related withdrawals (IR: 78.63, 95% CI 17.43-183.90; IR: 34.31, 95% CI 6.09-85.52, respectively). Significant heterogeneity (I2 >55%) was present in most analyses. CONCLUSIONS Although cannabinoid-based medications were generally safe and acceptable to adults aged over 50 years, these estimates are limited by the lack of a control condition and considerable heterogeneity. Nevertheless, they complement and are consistent with comparable evidence from randomised controlled trials.
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Affiliation(s)
- Sara Pisani
- Division of Academic Psychiatry, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
| | - Katie McGoohan
- Division of Academic Psychiatry, Department of Old Age Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
| | - Latha Velayudhan
- Division of Academic Psychiatry, Department of Old Age Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK
| | - Sagnik Bhattacharyya
- Division of Academic Psychiatry, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK.
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Bosnjak Kuharic D, Markovic D, Brkovic T, Jeric Kegalj M, Rubic Z, Vuica Vukasovic A, Jeroncic A, Puljak L. Cannabinoids for the treatment of dementia. Cochrane Database Syst Rev 2021; 9:CD012820. [PMID: 34532852 PMCID: PMC8446835 DOI: 10.1002/14651858.cd012820.pub2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Dementia is a common chronic condition, mainly affecting older adults, characterised by a progressive decline in cognitive and functional abilities. Medical treatments for dementia are limited. Cannabinoids are being investigated for the treatment of dementia. OBJECTIVES To determine the efficacy and safety of cannabinoids for the treatment of dementia. SEARCH METHODS We searched ALOIS - the Cochrane Dementia and Cognitive Improvement Group's Specialised Register - on 8 July 2021, using the terms cannabis or cannabinoid or endocannabinoid or cannabidiol or THC or CBD or dronabinol or delta-9-tetrahydrocannabinol or marijuana or marihuana or hashish. The register contains records from all major healthcare databases (the Cochrane Library, MEDLINE, Embase, PsycINFO, CINAHL, LILACS), as well as from many clinical trials registries and grey literature sources. SELECTION CRITERIA We included all randomised controlled trials (RCTs) of cannabinoids for the treatment of dementia. We included participants of any age and of either sex with diagnosed dementia of any subtype, or with unspecified dementia of any severity, from any setting. We considered studies of cannabinoids administered by any route, at any dose, for any duration, compared with placebo, no treatment, or any active control intervention. DATA COLLECTION AND ANALYSIS Two review authors independently screened and selected studies for inclusion, extracted data, and assessed the risk of bias in included studies. When necessary, other review authors were involved in reaching consensus decisions. We conducted meta-analyses using a generic inverse variance fixed-effect model to derive estimates of effect size. We used GRADE methods to assess our confidence in the effect estimates. MAIN RESULTS We included four studies (126 participants) in this review. Most participants had Alzheimer's disease; a few had vascular dementia or mixed dementia. Three studies had low risk of bias across all domains; one study had unclear risk of bias for the majority of domains. The included studies tested natural delta-9-tetrahydrocannabinol (THC) (Namisol) and two types of synthetic THC analogue (dronabinol and nabilone). Three trials had a cross-over design. Interventions were applied over 3 to 14 weeks; one study reported adverse events over 70 weeks of follow-up. One trial was undertaken in the USA, one in Canada, and two in The Netherlands. Two studies reported non-commercial funding, and two studies were conducted with the support of both commercial and non-commercial funding. Primary outcomes in this review were changes in global and specific cognitive function, overall behavioural and psychological symptoms of dementia (BPSD), and adverse events. We found very low-certainty evidence suggesting there may be little or no clinically important effect of a synthetic THC analogue on cognition assessed with the standardised Mini-Mental State Examination (sMMSE) (mean difference (MD) 1.1 points, 95% confidence interval (CI) 0.1 to 2.1; 1 cross-over trial, 28 participants). We found low-certainty evidence suggesting there may be little or no clinically important effect of cannabinoids on overall behavioural and psychological symptoms of dementia assessed with the Neuropsychiatric Inventory (or its modified nursing home version) (MD -1.97, 95% CI -3.87 to -0.07; 1 parallel group and 2 cross-over studies, 110 participants). All included studies reported data on adverse events. However, the total number of adverse events, the total numbers of mild and moderate adverse events, and the total number of serious adverse events (SAEs) were not reported in a way that permitted meta-analysis. There were no clear differences between groups in numbers of adverse events, with the exception of sedation (including lethargy), which was more frequent among participants taking nabilone (N = 17) than placebo (N = 6) (odds ratio (OR) 2.83, 95% CI 1.07 to 7.48; 1 cross-over study, 38 participants). We judged the certainty of evidence for adverse event outcomes to be low or very low due to serious concerns regarding imprecision and indirectness. AUTHORS' CONCLUSIONS Based on data from four small, short, and heterogeneous placebo-controlled trials, we cannot be certain whether cannabinoids have any beneficial or harmful effects on dementia. If there are benefits of cannabinoids for people with dementia, the effects may be too small to be clinically meaningful. Adequately powered, methodologically robust trials with longer follow-up are needed to properly assess the effects of cannabinoids in dementia.
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Affiliation(s)
| | - Domagoj Markovic
- Clinic for Heart and Cardiovascular Diseases, University of Split Hospital Center, Split, Croatia
| | - Tonci Brkovic
- Division of Nephrology, Department of Internal Medicine, University of Split Hospital Center, Split, Croatia
| | | | - Zana Rubic
- Department of Clinical Microbiology, University of Split Hospital Center, Split, Croatia
| | - Ana Vuica Vukasovic
- Department of Nuclear Medicine, University of Split Hospital Center, Split, Croatia
| | - Ana Jeroncic
- Department of Research in Biomedicine and Health, University of Split School of Medicine, Split, Croatia
| | - Livia Puljak
- Center for Evidence-Based Medicine and Health Care, Catholic University of Croatia, Zagreb, Croatia
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Potential and Limits of Cannabinoids in Alzheimer's Disease Therapy. BIOLOGY 2021; 10:biology10060542. [PMID: 34204237 PMCID: PMC8234911 DOI: 10.3390/biology10060542] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/13/2021] [Accepted: 06/14/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary This review was aimed at exploring the potentiality of drugging the endocannabinoid system as a therapeutic option for Alzheimer’s disease (AD). Recent discoveries have demonstrated how the modulation of cannabinoid receptor 1 (CB1) and receptor 2 (CB2) can exert neuroprotective effects without the recreational and pharmacological properties of Cannabis sativa. Thus, this review explores the potential of cannabinoids in AD, also highlighting their limitations in perspective to point out the need for further research on cannabinoids in AD therapy. Abstract Alzheimer’s disease (AD) is a detrimental brain disorder characterized by a gradual cognitive decline and neuronal deterioration. To date, the treatments available are effective only in the early stage of the disease. The AD etiology has not been completely revealed, and investigating new pathological mechanisms is essential for developing effective and safe drugs. The recreational and pharmacological properties of marijuana are known for centuries, but only recently the scientific community started to investigate the potential use of cannabinoids in AD therapy—sometimes with contradictory outcomes. Since the endocannabinoid system (ECS) is highly expressed in the hippocampus and cortex, cannabis use/abuse has often been associated with memory and learning dysfunction in vulnerable individuals. However, the latest findings in AD rodent models have shown promising effects of cannabinoids in reducing amyloid plaque deposition and stimulating hippocampal neurogenesis. Beneficial effects on several dementia-related symptoms have also been reported in clinical trials after cannabinoid treatments. Accordingly, future studies should address identifying the correct therapeutic dosage and timing of treatment from the perspective of using cannabinoids in AD therapy. The present paper aims to summarize the potential and limitations of cannabinoids as therapeutics for AD, focusing on recent pre-clinical and clinical evidence.
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Schloss J, Lacey J, Sinclair J, Steel A, Sughrue M, Sibbritt D, Teo C. A Phase 2 Randomised Clinical Trial Assessing the Tolerability of Two Different Ratios of Medicinal Cannabis in Patients With High Grade Gliomas. Front Oncol 2021; 11:649555. [PMID: 34094937 PMCID: PMC8176855 DOI: 10.3389/fonc.2021.649555] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/22/2021] [Indexed: 11/13/2022] Open
Abstract
Background Cannabis for cancer is very topical and, given the use of illicit cannabis preparations used in this vulnerable population, research investigating standardised, quality-assured medicinal cannabis is critical to inform clinicians and assist patient safety. Methods A randomized trial involving adult patients diagnosed with a high-grade glioma, no history of substance abuse, liver or kidney damage or myocardial infarction were eligible for inclusion in a tolerability study on two different ratios of medicinal cannabis. Baseline screening of brain morphology, blood pathology, functional status, and cognition was conducted. A retrospective control group was used for comparison for secondary outcomes. Results Participants (n=88) were on average 53.3 years old. A paired t-test assessed the Functional Assessment of Cancer Therapy for Brain Cancer (FACT-Br) between groups from baseline to week 12 found that the 1:1 ratio favoured both physical (p=0.025) and functional (p=0.014) capacity and improved sleep (p=0.009). Analysis of changes from baseline to week 12 also found 11% of 61 participants had a reduction in disease, 34% were stable, 16% had slight enhancement, and 10% had progressive disease. No serious adverse events occurred. Side effects included dry mouth, tiredness at night, dizziness, drowsiness. Conclusion This study demonstrated that a single nightly dose of THC-containing medicinal cannabis was safe, had no serious adverse effects and was well tolerated in patients. Medicinal cannabis significantly improved sleep, functional wellbeing, and quality of life. Clinical Trial Registration Australian New Zealand Clinical Trials Registry (ANZCTR) http://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=373556&isReview=true, identifier ACTRN12617001287325.
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Affiliation(s)
- Janet Schloss
- National Centre for Naturopathic Medicine, Southern Cross University, Lismore, NSW, Australia.,Office of Research, Endeavour College of Natural Health, Brisbane, QLD, Australia.,Australian Research Centre in Complementary and Integrative Medicine, University of Technology, Sydney, NSW, Australia
| | - Judith Lacey
- National Institute of Complementary Medicine (NICM) Health Research Institute, Western Sydney University, Sydney, NSW, Australia.,Supportive Care, Chris O'Brien Lifehouse Cancer Hospital, Sydney, NSW, Australia.,Clinical School of Medicine, University of Sydney, Sydney, NSW, Australia
| | - Justin Sinclair
- National Institute of Complementary Medicine (NICM) Health Research Institute, Western Sydney University, Sydney, NSW, Australia
| | - Amie Steel
- Australian Research Centre in Complementary and Integrative Medicine, University of Technology, Sydney, NSW, Australia
| | - Michael Sughrue
- Prince of Wales Private Hospital, Centre for Minimally Invasive Neurosurgery, Sydney, NSW, Australia
| | - David Sibbritt
- Australian Research Centre in Complementary and Integrative Medicine, University of Technology, Sydney, NSW, Australia
| | - Charles Teo
- Prince of Wales Private Hospital, Centre for Minimally Invasive Neurosurgery, Sydney, NSW, Australia
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Abstract
The prevalence of cannabis use among older adults (aged 65 and above) for both recreational and medicinal purposes has significantly increased in recent years. Information regarding the safety of cannabis in this population is important since aging is associated with metabolic changes, multiple morbidities, increases in prescription medication use, and an overall decline in functioning. In this Perspectives article, we review special considerations pertinent to older adults-specifically, the impact of cannabis on cognition and on falls and injuries, its drug interactions, and its potential medicinal applications for treating the behavioral and psychological symptoms of dementia. Knowledge about the role of cannabis in brain health, injury risk, and drug interactions remains limited since the available evidence stems primarily from adolescent and young adult cohorts, plus a limited number of small observational studies with older adults. In terms of utilizing certain cannabinoids to treat the behavioral and psychological symptoms of dementia, some studies have found promising results, but because of the lack of consistency in the literature, it is premature to draw conclusions. Controlled research trials specifically with geriatric participants are needed to understand the effects of cannabis use in this vulnerable population.
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Reid HMO, Chen-Mack N, Snowden T, Christie BR. Understanding Changes in Hippocampal Interneurons Subtypes in the Pathogenesis of Alzheimer's Disease: A Systematic Review. Brain Connect 2021; 11:159-179. [PMID: 33559520 DOI: 10.1089/brain.2020.0879] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background: It is becoming increasingly recognized that there is significant interneuron degeneration in Alzheimer's disease. As the hippocampus is integral for learning and memory, we performed a systematic review of primary literature focused on the relationship between Alzheimer's and hippocampal interneurons. In this study, we summarize the experimental work performed to date and identify opportunities for future experiments. Objectives: This PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses)-style systematic review seeks to summarize the findings of all accessible research focused on cholecystokinin (CCK), neuropeptide Y (NPY), parvalbumin (PV), and somatostatin (SOM) interneurons in the hippocampal formation. Results: One thousand five hundred ninety-three articles were pulled from PubMed, PsycInfo, and Web of Science, based on three blocks of search terms. There were 45 articles that met all the predetermined inclusion/exclusion criteria. There is strong evidence that PV interneurons are affected early in the disease by toxic amyloid beta (Aβ) fragments; SOM interneurons are affected indirectly while the SOM neuropeptide may act to slowly worsen toxic Aβ fragment accumulation, whereas NPY- and CCK-positive interneurons are affected later in the progression of the disease. Conclusions: Fewer studies have been performed on NPY and CCK interneurons, and there is room for further investigations regarding the role of PV interneurons in Alzheimer's to help resolve contradictory findings. This review found that PV interneurons are affected early in the disease, but only in Alzheimer's precursor protein but not tau models. NPY and CCK interneurons were found to be affected later in the disease, and SOM interneurons vary greatly. Future studies may consider reporting immunohistochemical studies inclusive of either cell location or morphology-as well as marker to give a more robust picture of the disease.
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Affiliation(s)
- Hannah M O Reid
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada
| | - Nathan Chen-Mack
- Island Medical Program and Department of Cellular and Physiological Sciences, University of British Columbia, Victoria, British Columbia, Canada
| | - Taylor Snowden
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada
| | - Brian R Christie
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada
- Island Medical Program and Department of Cellular and Physiological Sciences, University of British Columbia, Victoria, British Columbia, Canada
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Gicewicz E, Gatewood SS, Kaefer TN, Nadpara P, Goode JVR. Assessment of hemp oil-based cannabidiol use in a community-based pharmacy setting. J Am Pharm Assoc (2003) 2021; 61:S49-S56. [PMID: 33745856 DOI: 10.1016/j.japh.2021.02.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND The Agricultural Improvement Act of 2018 legalized the commercial use of hemp-based products, including cannabidiol (CBD). However, the U.S. Food and Drug Administration (FDA) does not currently regulate the commercial sale of hemp oil-based CBD, and there is no FDA-approved indication for its nonprescription formulations despite the growing demand for, and use of, hemp oil-based CBD. OBJECTIVES Characterize the use of hemp oil-based CBD, including brands, formulations, and reasons for use, in a community pharmacy setting and identify the perceived barriers related to the use of hemp oil-based CBD. METHODS A pretested 17-question survey was distributed at the point of care at 2 community pharmacy locations and at hemp oil-based CBD education presentations over a 3-month period. The survey consisted of multiple-choice, open-ended, and select-all-that-apply questions, which were analyzed using univariate and bivariate analyses. RESULTS A total of 101 participants completed the survey: 38 were CBD-naive, and 63 were CBD-exposed. Most of the participants were women (79%) and Caucasian (81.6%), with an average age of 59 years (SD 17.26). In the CBD-naive group, the most commonly stated barrier to using hemp oil-based CBD was not enough information about the product. Among the participants who had used or were using at least 1 CBD product, the most commonly used dosage form was sublingual, followed by topical: 46 (46/63 [73%]) and 34 (34/63 [54%]) participants, respectively. Thirty-eight participants used hemp oil-based CBD for pain, 24 participants for sleep, and 17 participants for anxiety. Of these, 62% of the participants informed a health care provider that they were using a hemp oil-based CBD product. CONCLUSION The participants were using different brands and formulations of hemp oil-based CBD for multiple reasons. The greatest barrier to trying CBD was limited education, which may suggest a need for community education about hemp oil-based CBD products.
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Herrera Gómez PM, Ochoa-Orozco SA, Jaramillo Toro C. Cannabinoids for major neurocognitive disorder: case report and literature review. ACTA ACUST UNITED AC 2021; 50:47-51. [PMID: 33648697 DOI: 10.1016/j.rcp.2019.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 07/09/2019] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Major neurocognitive disorder (MNCD) affects millions of people worldwide. However, the pharmacological options for its management are limited, ineffective and frequently associated with severe adverse reactions. CASE REPORT An 85-year-old man with history of multiple chronic brain injuries (alcohol-use disorder, haemorrhagic stroke, brain trauma, chronic use of benzodiazepines) developed an MNCD, reaching 7 points on the Reisberg Global Deterioration Scale. He had minimal response to antidepressants, antipsychotics and anticholinergic medications. After the use of mother tincture of Indian hemp (cannabis), a significant improvement was found in his cognitive function, ability to carry out activities of daily living and independence. DISCUSSION The endocannabinoid system seems to be implicated in age-related cognitive decline. In addition, the evidence derived from in-vitro and animal models suggest that this system could play an important role in the management of MNCD of different causes. CONCLUSIONS Cannabinoid treatment for MNCD emerges as a promising therapeutic approach that may benefit a growing number of patients who do not have other treatment options. It is therefore necessary to encourage more research efforts that will help to remove political and scientific barriers to its clinical use.
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Affiliation(s)
- Paula M Herrera Gómez
- Grupo de Investigación en Psiquiatría, Neurociencia y Comunidad, Universidad Tecnológica de Pereira, Pereira, Colombia; Grupo de Investigación en Inmunología y Biología Molecular, Universidad Tecnológica de Pereira, Pereira, Colombia; Grupo de Investigación en Neurociencia NeURos, Universidad del Rosario, Bogotá, Colombia; Cambridge Consciousness and Cognition Lab, Department of Psychology, University of Cambridge, Cambridge, United Kingdom.
| | - Sergio A Ochoa-Orozco
- Grupo de Investigación en Psiquiatría, Neurociencia y Comunidad, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Carolina Jaramillo Toro
- Grupo de Investigación en Psiquiatría, Neurociencia y Comunidad, Universidad Tecnológica de Pereira, Pereira, Colombia
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Leszko M, Meenrajan S. Attitudes, beliefs, and changing trends of cannabidiol (CBD) oil use among caregivers of individuals with Alzheimer's disease. Complement Ther Med 2021; 57:102660. [PMID: 33418066 DOI: 10.1016/j.ctim.2021.102660] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVES With the increasing popularity of CBD-based products, especially CBD oil, it is increasingly important to understand what motivates caregivers of individuals with Alzheimer's disease (AD) to use CBD oil as part of treatment. The purpose of this study was to identify the attitudes and beliefs of caregivers of individuals with AD toward CBD oil in Poland, to identify factors that might be associated with the decision to use CBD oil among caregivers, and to explore whether such a decision was discussed with a healthcare professional. METHOD A cross-sectional online survey was conducted in Poland. Participation in the study was entirely voluntary and completely anonymous. Caregivers (n = 73) were asked about their practices and attitudes regarding CBD oil. RESULTS The most common source of knowledge about CBD oil was an online support group for caregivers. The vast majority of caregivers found CBD to be effective in managing behavioral symptoms of AD and believed that healthcare professionals should offer CBD oil as a part of treatment. However, only 63 % (n = 46) reported consulting with their physician about using CBD oil. The study also demonstrated that some caregivers thought that CBD oil use was illegal in Poland and that their care-recipient may develop a dependence and withdrawal symptoms if they stopped using it. CONCLUSIONS The results of the study highlight the positive and negative perceptions among caregivers of people with AD. The study also emphasizes the importance of enhancing communication between caregivers and healthcare professionals to discuss the use of CBD oil in the treatment of individuals with AD.
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Affiliation(s)
- Magdalena Leszko
- University of Szczecin, Department of Psychology, ul. Krakowska 69, 71-017 Szczecin, Poland.
| | - Senthil Meenrajan
- University of Florida, College of Medicine, 1600 SW Archer Rd m509, Gainesville, FL 32610, United States
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Creatine kinase levels in psychotic patients who use cannabinoids. Int Clin Psychopharmacol 2021; 36:45-49. [PMID: 33165025 DOI: 10.1097/yic.0000000000000343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Elevated serum levels of creatine kinase enzymes have been found in brain injuries and psychosis. Cannabinoid use is associated with increased frequency and duration of hospitalizations. We examined whether creatine kinase levels differ in psychotic cannabinoid users and the association between creatine kinase levels and clinical measures (duration of hospitalization and need for mechanical restraint). Computerized medical records of 124 men hospitalized due to acute psychotic episodes were reviewed. Creatine kinase levels and various clinical measures at admission were documented. Cannabis users were significantly younger than nonusers. Duration of illness was longer among nonusers. Log creatine kinase among cannabinoid users (N = 32) was numerically higher compared to nonusers (N = 92) (5.6 ± 1 vs. 5.2 ± 0.9, respectively). Significantly higher rate of elevated creatine kinase levels (creatine kinase > 195 U/l) was detected in the cannabinoid users compared to nonusers (59.4% vs. 38%, respectively; P < 0.04). No association was found between creatine kinase levels and use of mechanical restraints and hospitalization days. Higher rate of elevated creatine kinase levels was observed in hospitalized psychotic cannabinoid users, possibly due to a cannabis activity at peripheral or brain tissues. Studies in larger, more diverse clinical populations are needed to confirm this finding and to clarify the biological mediators of elevated creatine kinase levels in psychotic cannabinoid users.
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Franco GDRR, Smid S, Viegas C. Phytocannabinoids: General Aspects and Pharmacological Potential in Neurodegenerative Diseases. Curr Neuropharmacol 2021; 19:449-464. [PMID: 32691712 PMCID: PMC8206465 DOI: 10.2174/1570159x18666200720172624] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/01/2020] [Accepted: 07/01/2020] [Indexed: 11/22/2022] Open
Abstract
In the last few years research into Cannabis and its constituent phytocannabinoids has burgeoned, particularly in the potential application of novel cannabis phytochemicals for the treatment of diverse illnesses related to neurodegeneration and dementia, including Alzheimer's (AD), Parkinson's (PD) and Huntington's disease (HD). To date, these neurological diseases have mostly relied on symptomatological management. However, with an aging population globally, the search for more efficient and disease-modifying treatments that could delay or mitigate disease progression is imperative. In this context, this review aims to present state of the art in the research with cannabinoids and novel cannabinoid-based drug candidates that have been emerged as novel promising alternatives for drug development and innovation in the therapeutics of a number of diseases, especially those related to CNS-disturbance and impairment.
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Affiliation(s)
| | | | - Cláudio Viegas
- Address correspondence to this author at the PeQuiM-Laboratory of Research in Medicinal Chemistry, Institute of Chemistry, Federal University of Alfenas, 37133-840, Brazil; Tel/Fax: +55 35 3701-1880; E-mail:
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Charernboon T, Lerthattasilp T, Supasitthumrong T. Effectiveness of Cannabinoids for Treatment of Dementia: A Systematic Review of Randomized Controlled Trials. Clin Gerontol 2021; 44:16-24. [PMID: 32186469 DOI: 10.1080/07317115.2020.1742832] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective: In the last decade, research has focused on developing novel medications for the treatment of dementia. Cannabinoids are one of the potential agents under investigation. The present study aimed to examine the evidence concerning the effectiveness of cannabinoids for the treatment of dementia. Methods: We undertook a systematic review complying to PRISMA guidelines. Four databases were searched including Medline, Embase, Cochrane Library, and PsychINFO. Results: Five studies evaluated the use of cannabinoids for anorexia and agitation in dementia. One study used dronabinol 5 mg/day to target anorexic symptoms of dementia which positively impacted on weight. Results of two trials investigating the effectiveness of tetrahydrocannabinol (THC) 1.5-4.5 mg/day for the treatment of agitation indicated no significant differences between THC and placebo. The most recent trial reported significant improvement in agitation using nabilone at 1-2 mg/day. However, levels of evidence of these agents were rated as low and very low because of low sample size and methodology issues. No studies were available that investigated the use of cannabinoids to moderate cognitive symptoms in dementia. Conclusions: Findings from a few robust randomized controlled trials suggest that nabilone might be useful for the treatment of agitation in patients with dementia, but there is no convincing evidence for THC. Additional studies are needed to further clarify and assess the benefits of these treatments. Clinical Implications: There were no randomized controlled trials investigating the use of cannabinoids for the treatment of cognitive decline in dementia. Studies on THC reported no significant improvement in agitation. It may be too early to postulate that cannabinoids have any effect on dementia symptoms or their progression.
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Affiliation(s)
- Thammanard Charernboon
- Department of Clinical Epidemiology, Faculty of Medicine, Thammasat University , Pathumthani, Thailand.,Stroke and Neurodegenerative Disease Research Unit, Thammasat University , Pathumthani, Thailand.,Center of Excellence in Applied Epidemiology, Thammasat University , Pathumthani, Thailand
| | - Tiraya Lerthattasilp
- Department of Psychiatry, Faculty of Medicine, Thammasat University , Pathumthani, Thailand
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The Psychopharmacology Algorithm Project at the Harvard South Shore Program: An update on management of behavioral and psychological symptoms in dementia. Psychiatry Res 2021; 295:113641. [PMID: 33340800 DOI: 10.1016/j.psychres.2020.113641] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/09/2020] [Indexed: 12/27/2022]
Abstract
Geriatric patients with dementia frequently present with agitation, aggression, psychosis, and other behavioral and psychological symptoms of dementia (BPSD). We present an update of our previously published algorithms for the use of psychopharmacologic agents in these patients taking into account more recent studies and findings in meta-analyses, reviews, and other published algorithms. We propose three algorithms: BPSD in an emergent, urgent, and non-urgent setting. In the emergent setting when intramuscular (IM) administration is necessary, the first-line recommendation is for olanzapine (since IM aripiprazole, previously favored, is no longer available) and haloperidol injection is the second choice, followed by possible consideration of an IM benzodiazepine. In the urgent setting, the first line would be oral second-generation antipsychotics (SGAs) aripiprazole and risperidone. Perhaps next could be then prazosin, and lastly electroconvulsive therapy is a consideration. There are risks associated with these agents, and adverse effects can be severe. Dosing strategies, discontinuation considerations, and side effects are discussed. In the non-emergent setting, medications are proposed for use in the following order: trazodone, donepezil and memantine, antidepressants such as escitalopram and sertraline, SGAs, prazosin, and carbamazepine. Other options with less support but potential future promise are discussed.
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Gopalakrishna G, Srivathsal Y, Kaur G. Cannabinoids in the management of frontotemporal dementia: a case series. Neurodegener Dis Manag 2020; 11:61-64. [PMID: 33190583 DOI: 10.2217/nmt-2020-0048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: Frontotemporal dementia (FTD) is characterized by progressive deterioration in behaviors, executive function and/or language. The behavioral variant (Bv) is characterized by disinhibition and obsessive/compulsive behaviors. These symptoms are sometimes resistant to medications. This series examines patients suffering with treatment-resistant Bv-FTD who were prescribed cannabinoid and related compounds for other indications. Case presentation: Three FTD cases from a dementia clinic were identified. These patients had disability due to behavior despite typical pharmacologic management. These patients were prescribed marijuana for comorbidities (anxiety, insomnia and pain). In all cases, use of cannabinoid products showed significant improvements in behavior and in the primary indication for prescription. Conclusion: Review of these cases demonstrates potential for the use of cannabinoids in the management of treatment-resistant Bv-FTD.
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Affiliation(s)
- Ganesh Gopalakrishna
- Department of Psychiatry, University of Arizona College of Medicine, Phoenix, AZ 85006, USA.,Banner Alzheimer's Institute, Phoenix, AZ 85006 USA
| | - Yazhini Srivathsal
- Department of Psychiatry, University of Arizona College of Medicine, Phoenix, AZ 85006, USA.,Banner Behavioral Health Hospital, Scottsdale, AZ 85251, USA
| | - Gurmehr Kaur
- Department of Psychiatry, University of Arizona College of Medicine, Phoenix, AZ 85006, USA
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46
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Vacaflor BE, Beauchet O, Jarvis GE, Schavietto A, Rej S. Mental Health and Cognition in Older Cannabis Users: a Review. Can Geriatr J 2020; 23:242-249. [PMID: 32904776 PMCID: PMC7458597 DOI: 10.5770/cgj.23.399] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background The impact of cannabis use on mental health and cognition in older adults remains unclear. With the recent legalization of cannabis in Canada, physicians will need up-to-date information about the mental and cognitive effects of cannabis use in this specific population. Method A narrative review was conducted to summarize the literature on mental health and cognitive effects of cannabis use in older adults using Medline (OvidSP). Results A total of 16 studies were identified, including nine cross-sectional studies on mental health comorbidities reported by older cannabis users. The self-reported prevalence of mental and substance use disorders is approximately two to three times higher in older adults who report past-year cannabis use, compared to older adults who report using more than one year ago or never using. The remaining seven clinical trials found that short-term, low-dose medical cannabis was generally well-tolerated in older adults without prior serious mental illness. However, mental/cognitive adverse effects were not systematically assessed. Conclusion Although preliminary findings suggests that low-dose, short-term medical cannabis does not carry significant risk of serious mental health and cognitive adverse effects in older adults without prior psychiatric history, epidemiological studies find a correlation between past-year cannabis use and poor mental health outcomes in community-dwelling older adults. These findings may indicate that longer term cannabis use in this population is detrimental to their mental health, although a direct causal link has not been established. Larger, longitudinal studies on the safety of medical cannabis in older adults are needed.
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Affiliation(s)
- Blanca E Vacaflor
- Geri-PARTy Research Group, Department of Psychiatry, Jewish General Hospital, McGill University, Montreal, QC
| | - Olivier Beauchet
- Department of Medicine, Division of Geriatric Medicine, Sir Mortimer B. Davis-Jewish General Hospital and Lady Davis Institute for Medical Research, McGill University, Montreal, QC, and Dr. Joseph Kaufmann Chair in Geriatric Medicine, Faculty of Medicine, McGill University, Montreal, QC
| | - G Eric Jarvis
- Culture and Mental Health Research Unit, Department of Psychiatry, Jewish General Hospital, McGill University, Montreal, QC, Canada
| | - Alessandra Schavietto
- Geri-PARTy Research Group, Department of Psychiatry, Jewish General Hospital, McGill University, Montreal, QC
| | - Soham Rej
- Geri-PARTy Research Group, Department of Psychiatry, Jewish General Hospital, McGill University, Montreal, QC
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Edelstein OE, Wacht O, Isralowitz R, Reznik A, Bachner YG. Beliefs and Attitudes of Graduate Gerontology Students about Medical Marijuana Use for Alzheimer’s and Parkinson’s Disease. Complement Ther Med 2020; 52:102418. [DOI: 10.1016/j.ctim.2020.102418] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 01/06/2023] Open
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48
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Inglet S, Winter B, Yost SE, Entringer S, Lian A, Biksacky M, Pitt RD, Mortensen W. Clinical Data for the Use of Cannabis-Based Treatments: A Comprehensive Review of the Literature. Ann Pharmacother 2020; 54:1109-1143. [DOI: 10.1177/1060028020930189] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective: To compile and synthesize the available literature describing medical cannabis use across various disease states. Data Sources: PubMed, EBSCO, and Google Scholar searches were conducted using MeSH and/or keywords. Study Selection and Data Extraction: Studies were included if they described the use of cannabis-based products and medications in the treatment of a predefined list of disease states in humans and were published in English. The extraction period had no historical limit and spanned through April 2019. Data Synthesis: Evidence was compiled and summarized for the following medical conditions: Alzheimer disease, amyotrophic lateral sclerosis, autism, cancer and cancer-associated adverse effects, seizure disorders, human immunodeficiency virus, inflammatory bowel disease, multiple sclerosis (MS), nausea, pain, posttraumatic stress disorder, and hospice care. Relevance to Patient Care and Clinical Practice: Based on identified data, the most robust evidence suggests that medical cannabis may be effective in the treatment of chemotherapy-induced nausea and vomiting, seizure disorders, MS-related spasticity, and pain (excluding diabetic neuropathy). Overall, the evidence is inconsistent and generally limited by poor quality. The large variation in cannabis-based products evaluated in studies limits the ability to make direct comparisons. Regardless of the product, a gradual dose titration was utilized in most studies. Cannabis-based therapies were typically well tolerated, with the most common adverse effects being dizziness, somnolence, dry mouth, nausea, and euphoria. Conclusions: As more states authorize medical cannabis use, there is an increasing need for high-quality clinical evidence describing its efficacy and safety. This review is intended to serve as a reference for clinicians, so that the risks and realistic benefits of medical cannabis are better understood.
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Affiliation(s)
| | | | | | | | - Anh Lian
- Intermountain Healthcare, Taylorsville, UT, USA
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49
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Reddy V, Grogan D, Ahluwalia M, Salles ÉL, Ahluwalia P, Khodadadi H, Alverson K, Nguyen A, Raju SP, Gaur P, Braun M, Vale FL, Costigliola V, Dhandapani K, Baban B, Vaibhav K. Targeting the endocannabinoid system: a predictive, preventive, and personalized medicine-directed approach to the management of brain pathologies. EPMA J 2020; 11:217-250. [PMID: 32549916 PMCID: PMC7272537 DOI: 10.1007/s13167-020-00203-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 03/10/2020] [Indexed: 02/07/2023]
Abstract
Cannabis-inspired medical products are garnering increasing attention from the scientific community, general public, and health policy makers. A plethora of scientific literature demonstrates intricate engagement of the endocannabinoid system with human immunology, psychology, developmental processes, neuronal plasticity, signal transduction, and metabolic regulation. Despite the therapeutic potential, the adverse psychoactive effects and historical stigma, cannabinoids have limited widespread clinical application. Therefore, it is plausible to weigh carefully the beneficial effects of cannabinoids against the potential adverse impacts for every individual. This is where the concept of "personalized medicine" as a promising approach for disease prediction and prevention may take into the account. The goal of this review is to provide an outline of the endocannabinoid system, including endocannabinoid metabolizing pathways, and will progress to a more in-depth discussion of the therapeutic interventions by endocannabinoids in various neurological disorders.
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Affiliation(s)
- Vamsi Reddy
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Dayton Grogan
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Meenakshi Ahluwalia
- Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Évila Lopes Salles
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA USA
| | - Pankaj Ahluwalia
- Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Hesam Khodadadi
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA USA
| | - Katelyn Alverson
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Andy Nguyen
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Srikrishnan P. Raju
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
- Brown University, Providence, RI USA
| | - Pankaj Gaur
- Georgia Cancer Center, Augusta University, Augusta, GA USA
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Molly Braun
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, USA
- VISN 20 Mental Illness Research, Education and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, USA
| | - Fernando L. Vale
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
| | | | - Krishnan Dhandapani
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Babak Baban
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA USA
| | - Kumar Vaibhav
- Department of Neurosurgery, Medical College of Georgia, Augusta University, Augusta, GA USA
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Abstract
Research into irritability has focused largely on its developmental and child-adolescent manifestations. Although irritability appears to be as elemental an experience as anxiety or depression, diagnoses highlighting irritability as the focal ingredient have yet to be delineated for adults. Instead, irritability-related diagnoses in adults have largely emphasized externalizing behaviors, depressed mood, and personality. Consequently, patients complaining of irritability are sometimes shoehorned into diagnostic categories that they do not experience as authentic representations of their lived experiences. This article proposes that the symptom of irritability might be productively reenvisioned as a focal point, analogous to anxiety and depression, around which irritability-related syndromes and disorders in adults might coalesce. If anxiety, depressive, insomnia, and pain disorders, why not irritability disorders? Both state and trait characteristics of irritability can lend themselves to DSM diagnostic frames. Based on clinical observations, specific irritability disorders in adults can be envisioned, modeled as Irritability Disorder of Adulthood, Irritability Disorder Secondary to Another Medical Condition, Substance-Induced Irritability Disorder, Adjustment Disorder With Irritable Mood, and the like. Further delineation of irritability phenomena, syndromes, and possible disorders in adults is warranted to advance investigation, guide assessment, and improve treatment.
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Affiliation(s)
- Joel Yager
- Department of Psychiatry, University of Colorado School of Medicine, Aurora, Colorado
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