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Ellison GL, Helzlsouer KJ, Rosenfield SM, Kim Y, Ashare RL, Blaes AH, Cullen J, Doran N, Ebbert JO, Egan KM, Heffner JL, Lee RT, McClure EA, McDaniels-Davidson C, Meghani SH, Newcomb PA, Nugent S, Hernandez-Ortega N, Salz T, Vidot DC, Worster B, Zylla DM. Perceptions, prevalence, and patterns of cannabis use among cancer patients treated at 12 NCI-Designated Cancer Centers. J Natl Cancer Inst Monogr 2024; 2024:202-217. [PMID: 39108244 PMCID: PMC11303851 DOI: 10.1093/jncimonographs/lgae029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 04/02/2024] [Accepted: 05/15/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND The legal climate for cannabis use has dramatically changed with an increasing number of states passing legislation legalizing access for medical and recreational use. Among cancer patients, cannabis is often used to ameliorate adverse effects of cancer treatment. Data are limited on the extent and type of use among cancer patients during treatment and the perceived benefits and harms. This multicenter survey was conducted to assess the use of cannabis among cancer patients residing in states with varied legal access to cannabis. METHODS A total of 12 NCI-Designated Cancer Centers, across states with varied cannabis-access legal status, conducted surveys with a core questionnaire to assess cannabis use among recently diagnosed cancer patients. Data were collected between September 2021 and August 2023 and pooled across 12 cancer centers. Frequencies and 95% confidence intervals for core survey measures were calculated, and weighted estimates are presented for the 10 sites that drew probability samples. RESULTS Overall reported cannabis use since cancer diagnosis among survey respondents was 32.9% (weighted), which varied slightly by state legalization status. The most common perceived benefits of use were for pain, sleep, stress and anxiety, and treatment side effects. Reported perceived risks were less common and included inability to drive, difficulty concentrating, lung damage, addiction, and impact on employment. A majority reported feeling comfortable speaking to health-care providers though, overall, only 21.5% reported having done so. Among those who used cannabis since diagnosis, the most common modes were eating in food, smoking, and pills or tinctures, and the most common reasons were for sleep disturbance, followed by pain and stress and anxiety with 60%-68% reporting improved symptoms with use. CONCLUSION This geographically diverse survey demonstrates that patients use cannabis regardless of its legal status. Addressing knowledge gaps concerning benefits and harms of cannabis use during cancer treatment is critical to enhance patient-provider communication.
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Affiliation(s)
- Gary L Ellison
- Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA
| | - Kathy J Helzlsouer
- Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA
| | - Sonia M Rosenfield
- Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA
| | | | - Rebecca L Ashare
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, USA
- Department of Psychology, University of Buffalo, Buffalo, NY, USA
| | - Anne H Blaes
- Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, MN, USA
| | - Jennifer Cullen
- Case Comprehensive Cancer Center, Cleveland, OH, USA
- Department of Population and Quantitative Health Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Neal Doran
- University of California, San Diego, Health Moores Cancer Center, La Jolla, CA, USA
- Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA, USA
- Psychology Service, Jennifer Moreno Veterans Affairs Medical Center, San Diego, CA, USA
| | - Jon O Ebbert
- Department of Internal Medicine, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Kathleen M Egan
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Jaimee L Heffner
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Richard T Lee
- Case Comprehensive Cancer Center, Cleveland, OH, USA
- City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Erin A McClure
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Corinne McDaniels-Davidson
- University of California, San Diego, Health Moores Cancer Center, La Jolla, CA, USA
- Division of Health Promotion and Behavioral Science, School of Public Health, San Diego State University, San Diego, CA, USA
| | - Salimah H Meghani
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, USA
- Department of Biobehavioral Health Sciences, NewCourtland Center for Transitions and Health Leonard Davis Institute for Health Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Polly A Newcomb
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Shannon Nugent
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, USA
| | - Nicholas Hernandez-Ortega
- Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, FL, USA
- School of Nursing and Health Studies, University of Miami, Coral Gables, FL, USA
| | - Talya Salz
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Denise C Vidot
- Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, FL, USA
- School of Nursing and Health Studies, University of Miami, Coral Gables, FL, USA
| | - Brooke Worster
- Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, PA, USA
| | - Dylan M Zylla
- The Cancer Research Center, HealthPartners and Park Nicollet, Minneapolis, MN, USA
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Smith DM, Kaye JT, Walters KJ, Schlienz NJ, Hyland AJ, Ashare RL, Tomko RL, Dahne J, McRae-Clark AL, McClure EA. Tobacco-cannabis co-use among cancer patients and survivors: findings from 2 US cancer centers. J Natl Cancer Inst Monogr 2024; 2024:234-243. [PMID: 39108242 PMCID: PMC11303862 DOI: 10.1093/jncimonographs/lgad035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/19/2023] [Accepted: 10/03/2023] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Cannabis use is prevalent among cancer patients and survivors and may provide some therapeutic benefits for this population. However, benefits may be attenuated when cannabis is co-used with tobacco, which is associated with more severe tobacco and cannabis use and adverse outcomes in noncancer populations. We compared cannabis use, primary mode of use, and therapeutic and/or nontherapeutic use among 3 groups of patients and survivors based on cigarette smoking status. METHODS Survey data was collected from patients and survivors with cancer (n = 1732) at 2 US National Cancer Institute-designated cancer centers in states with varying cannabis regulatory policy. Prevalence of cannabis use (prior to diagnosis, after diagnosis, before treatment, after treatment), primary mode of use, and therapeutic and/or nontherapeutic use were assessed by cigarette smoking status (current, former, never) within and across centers using weighted bivariate analyses and multivariable logistic regression, controlling for demographic and clinical variables. RESULTS Current cigarette use was associated with greater rates of cannabis use prior to diagnosis, after diagnosis, during treatment, and after treatment within each center (all P < .001) and in pooled analyses across centers (all P < .001). Primary mode of use, knowledge of cannabis products, and therapeutic and/or nontherapeutic use also statistically differed by tobacco status and study site. CONCLUSIONS Results illustrate the importance of conducting assessments for both tobacco and cannabis use among cancer patients during and after cancer treatment, regardless of the cannabis regulatory environment. Given previous data indicating harms from co-use and continued tobacco use during cancer treatment, this issue introduces new priorities for cancer care delivery and research.
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Affiliation(s)
- Danielle M Smith
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Jesse T Kaye
- Center for Tobacco Research and Intervention (UW-CTRI), University of Wisconsin-Madison, Madison, WI, USA
| | - Kyle J Walters
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Nicolas J Schlienz
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Andrew J Hyland
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Rebecca L Ashare
- Department of Psychology, University at Buffalo, Buffalo, NY, USA
| | - Rachel L Tomko
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Jennifer Dahne
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Aimee L McRae-Clark
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
- Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Erin A McClure
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
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3
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Russell L, Condo K, DeFlorville T. Nutrition, endocannabinoids, and the use of cannabis: An overview for the nutrition clinician. Nutr Clin Pract 2024; 39:815-823. [PMID: 38555505 DOI: 10.1002/ncp.11148] [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: 10/01/2023] [Revised: 02/21/2024] [Accepted: 03/02/2024] [Indexed: 04/02/2024] Open
Abstract
The endocannabinoid system (ECs) is composed of multiple signaling compounds and receptors within the central and peripheral nervous system along with various organs, including the gut, liver, and skeletal muscle. The ECs has been implicated in metabolism, gut motility, and eating behaviors. The ECs is altered in disease states such as obesity. Recent studies have clarified the role of the gut microbiome and nutrition on the ECs. Exogenous cannabinoid (CB) use, either organic or synthetic, stimulates the ECs through CB1 and CB2 receptors. However, the role of CBs is unclear in regard to nutrition optimization or to treat disease states. This review briefly summarizes the effect of the ECs and exogenous CBs on metabolism and nutrition. With the increased legalization of cannabis, there is a corresponding increased use in the United States. Therefore, nutrition clinicians need to be aware of both the benefits and harm of cannabis use on overall nutrition status, as well as the gaps in knowledge for future research and guideline development.
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Affiliation(s)
- Lindsey Russell
- Center for Human Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Disease and Surgical Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Kayla Condo
- Center for Human Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
| | - Tiffany DeFlorville
- Center for Human Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Disease and Surgical Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Cherkasova V, Ilnytskyy Y, Kovalchuk O, Kovalchuk I. Targeting Colorectal Cancer: Unravelling the Transcriptomic Impact of Cisplatin and High-THC Cannabis Extract. Int J Mol Sci 2024; 25:4439. [PMID: 38674023 PMCID: PMC11050262 DOI: 10.3390/ijms25084439] [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: 03/25/2024] [Revised: 04/09/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Cisplatin and other platinum-derived chemotherapy drugs have been used for the treatment of cancer for a long time and are often combined with other medications. Unfortunately, tumours often develop resistance to cisplatin, forcing scientists to look for alternatives or synergistic combinations with other drugs. In this work, we attempted to find a potential synergistic effect between cisplatin and cannabinoid delta-9-THC, as well as the high-THC Cannabis sativa extract, for the treatment of HT-29, HCT-116, and LS-174T colorectal cancer cell lines. However, we found that combinations of the high-THC cannabis extract with cisplatin worked antagonistically on the tested colorectal cancer cell lines. To elucidate the mechanisms of drug interactions and the distinct impacts of individual treatments, we conducted a comprehensive transcriptomic analysis of affected pathways within the colorectal cancer cell line HT-29. Our primary objective was to gain a deeper understanding of the underlying molecular mechanisms associated with each treatment modality and their potential interactions. Our findings revealed an antagonistic interaction between cisplatin and high-THC cannabis extract, which could be linked to alterations in gene transcription associated with cell death (BCL2, BAD, caspase 10), DNA repair pathways (Rad52), and cancer pathways related to drug resistance.
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Affiliation(s)
| | | | - Olga Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (V.C.); (Y.I.)
| | - Igor Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (V.C.); (Y.I.)
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Boehnke KF, Sinclair R, Gordon F, Hosanagar A, Roehler DR, Smith T, Hoots B. Trends in U.S. Medical Cannabis Registrations, Authorizing Clinicians, and Reasons for Use From 2020 to 2022. Ann Intern Med 2024; 177:458-466. [PMID: 38588545 DOI: 10.7326/m23-2811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND As medical cannabis availability increases, up-to-date trends in medical cannabis licensure can inform clinical policy and care. OBJECTIVE To describe current trends in medical cannabis licensure in the United States. DESIGN Ecological study with repeated measures. SETTING Publicly available state registry data from 2020 to 2022. PARTICIPANTS People with medical cannabis licenses and clinicians authorizing cannabis licenses in the United States. MEASUREMENTS Total patient volume and prevalence per 10 000 persons in the total population, symptoms or conditions qualifying patients for licensure (that is, patient-reported qualifying conditions), and number of authorizing clinicians. RESULTS In 2022, of 39 jurisdictions allowing medical cannabis use, 34 reported patient numbers, 19 reported patient-reported qualifying conditions, and 29 reported authorizing clinician numbers. Enrolled patients increased 33.3% from 2020 (3 099 096) to 2022 (4 132 098), with a corresponding 23.0% increase in the population prevalence of patients (175.0 per 10 000 in 2020 to 215.2 per 10 000 in 2022). However, 13 of 15 jurisdictions with nonmedical adult-use laws had decreased enrollment from 2020 to 2022. The proportion of patient-reported qualifying conditions with substantial or conclusive evidence of therapeutic value decreased from 70.4% (2020) to 53.8% (2022). Chronic pain was the most common patient-reported qualifying condition in 2022 (48.4%), followed by anxiety (14.2%) and posttraumatic stress disorder (13.0%). In 2022, the United States had 29 500 authorizing clinicians (7.7 per 1000 patients), 53.5% of whom were physicians. The most common specialties reported were internal or family medicine (63.4%), physical medicine and rehabilitation (9.1%), and anesthesia or pain (7.9%). LIMITATION Missing data (for example, from California), descriptive analysis, lack of information on individual use patterns, and changing evidence base. CONCLUSION Enrollment in medical cannabis programs increased overall but generally decreased in jurisdictions with nonmedical adult-use laws. Use for conditions or symptoms without a strong evidence basis continues to increase. Given these trends, more research is needed to better understand the risks and benefits of medical cannabis. PRIMARY FUNDING SOURCE National Institute on Drug Abuse of the National Institutes of Health.
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Affiliation(s)
- Kevin F Boehnke
- Anesthesiology Department, Chronic Pain and Fatigue Research Center, University of Michigan Medical School, Ann Arbor, Michigan (K.F.B., F.G., T.S.)
| | - Rachel Sinclair
- Cannabis Strategy Unit, Division of Overdose Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, Georgia, and Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee (R.S.)
| | - Felicia Gordon
- Anesthesiology Department, Chronic Pain and Fatigue Research Center, University of Michigan Medical School, Ann Arbor, Michigan (K.F.B., F.G., T.S.)
| | - Avinash Hosanagar
- Veterans Affairs Ann Arbor Healthcare System and Department of Psychiatry, University of Michigan Medical School, Ann Arbor, Michigan (A.H.)
| | - Douglas R Roehler
- Cannabis Strategy Unit, Division of Overdose Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, Georgia (D.R.R., B.H.)
| | - Tristin Smith
- Anesthesiology Department, Chronic Pain and Fatigue Research Center, University of Michigan Medical School, Ann Arbor, Michigan (K.F.B., F.G., T.S.)
| | - Brooke Hoots
- Cannabis Strategy Unit, Division of Overdose Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, Georgia (D.R.R., B.H.)
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Zeng F, Wade A, Harbert K, Patel S, Holley JS, Dehghanpuor CK, Hopwood T, Marino S, Sophocleous A, Idris AI. Classical cannabinoid receptors as target in cancer-induced bone pain: a systematic review, meta-analysis and bioinformatics validation. Sci Rep 2024; 14:5782. [PMID: 38461339 PMCID: PMC10924854 DOI: 10.1038/s41598-024-56220-0] [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: 09/09/2023] [Accepted: 03/04/2024] [Indexed: 03/11/2024] Open
Abstract
To test the hypothesis that genetic and pharmacological modulation of the classical cannabinoid type 1 (CB1) and 2 (CB2) receptors attenuate cancer-induced bone pain, we searched Medline, Web of Science and Scopus for relevant skeletal and non-skeletal cancer studies from inception to July 28, 2022. We identified 29 animal and 35 human studies. In mice, a meta-analysis of pooled studies showed that treatment of osteolysis-bearing males with the endocannabinoids AEA and 2-AG (mean difference [MD] - 24.83, 95% confidence interval [95%CI] - 34.89, - 14.76, p < 0.00001) or the synthetic cannabinoid (CB) agonists ACPA, WIN55,212-2, CP55,940 (CB1/2-non-selective) and AM1241 (CB2-selective) (MD - 28.73, 95%CI - 45.43, - 12.02, p = 0.0008) are associated with significant reduction in paw withdrawal frequency. Consistently, the synthetic agonists AM1241 and JWH015 (CB2-selective) increased paw withdrawal threshold (MD 0.89, 95%CI 0.79, 0.99, p < 0.00001), and ACEA (CB1-selective), AM1241 and JWH015 (CB2-selective) reduced spontaneous flinches (MD - 4.85, 95%CI - 6.74, - 2.96, p < 0. 00001) in osteolysis-bearing male mice. In rats, significant increase in paw withdrawal threshold is associated with the administration of ACEA and WIN55,212-2 (CB1/2-non-selective), JWH015 and AM1241 (CB2-selective) in osteolysis-bearing females (MD 8.18, 95%CI 6.14, 10.21, p < 0.00001), and treatment with AM1241 (CB2-selective) increased paw withdrawal thermal latency in males (mean difference [MD]: 3.94, 95%CI 2.13, 5.75, p < 0.0001), confirming the analgesic capabilities of CB1/2 ligands in rodents. In human, treatment of cancer patients with medical cannabis (standardized MD - 0.19, 95%CI - 0.35, - 0.02, p = 0.03) and the plant-derived delta-9-THC (20 mg) (MD 3.29, CI 2.24, 4.33, p < 0.00001) or its synthetic derivative NIB (4 mg) (MD 2.55, 95%CI 1.58, 3.51, p < 0.00001) are associated with reduction in pain intensity. Bioinformatics validation of KEGG, GO and MPO pathway, function and process enrichment analysis of mouse, rat and human data revealed that CB1 and CB2 receptors are enriched in a cocktail of nociceptive and sensory perception, inflammatory, immune-modulatory, and cancer pathways. Thus, we cautiously conclude that pharmacological modulators of CB1/2 receptors show promise in the treatment of cancer-induced bone pain, however further assessment of their effects on bone pain in genetically engineered animal models and cancer patients is warranted.
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Affiliation(s)
- Feier Zeng
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Abbie Wade
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Kade Harbert
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Shrina Patel
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Joshua S Holley
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Cornelia K Dehghanpuor
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Thomas Hopwood
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK
| | - Silvia Marino
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences (UAMS), BioMed II, 238-2, Little Rock, AR, USA
| | - Antonia Sophocleous
- Department of Life Sciences, School of Sciences, European University Cyprus, 6 Diogenes Street, 1516, Nicosia, Cyprus.
| | - Aymen I Idris
- Department of Oncology and Metabolism, University of Sheffield, Medical School, Beech Hill Road, Sheffield, S10 2RX, UK.
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Donovan KA, Dolan A, Lubrano di Ciccone BB, Babilonia MB, Skinner A, Reed DR, Portman DG. Cannabis consumption in young adults with cancer: descriptive study. BMJ Support Palliat Care 2024; 13:e1133-e1140. [PMID: 35788467 DOI: 10.1136/bmjspcare-2021-003353] [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: 09/03/2021] [Accepted: 04/25/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVE In the USA, the increase in state-sanctioned medical and recreational cannabis consumption means more young adults (YA) with cancer are using cannabis. Data and information are needed to characterise this use and frame much needed discussions about the role of cannabis in cancer care. To that end, this study's objective was to describe consumption of cannabis in YA with cancer. METHODS Four hundred seventy-six patients with cancer ages 18-39 years at a large comprehensive cancer centre responded to a survey about their cannabis consumption. The survey was administered online between July 2019 and June 2020, and respondents were anonymous. RESULTS Fifty-two per cent (n=247) of respondents endorsed use within the last year; of these, half reported using cannabis prior to their diagnosis. Consumption was about equally distributed between smoking/inhalation and eating/drinking cannabis products. Seventy-five per cent of consumers used cannabis at least weekly. Top five primary reasons for use were pain, anxiety, nausea, sleep and recreation. More frequent consumption was associated with greater perceived improvement in certain symptoms. Cannabis products tended to be sourced from friends and family and information from non-medical sources. Most YA reported being comfortable discussing their consumption with providers. CONCLUSIONS Many YA are using cannabis frequently to manage their cancer-related and treatment-related symptoms. Findings support the need for providers to consider cannabis use in treatment planning and symptom management with YA. Findings should help frame patient and provider discussions and herald much needed research on the effect of cannabis consumption on patient outcomes.
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Affiliation(s)
- Kristine A Donovan
- Department of Supportive Care Medicine, Moffitt Cancer Center, Tampa, Florida, USA
| | - Alex Dolan
- USF Health Morsani College of Medicine, Tampa, Florida, USA
| | | | | | - Amber Skinner
- Adolescent and Young Adult Program, Moffitt Cancer Center, Tampa, Florida, USA
| | - Damon R Reed
- Department of Individualized Cancer Management, Moffitt Cancer Center, Tampa, Florida, USA
| | - Diane G Portman
- Department of Supportive Care Medicine, Moffitt Cancer Center, Tampa, Florida, USA
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Amin S, Chae SW, Kawamoto CT, Phillips KT, Pokhrel P. Cannabis use among cancer patients and survivors in the United States: a systematic review. JNCI Cancer Spectr 2024; 8:pkae004. [PMID: 38291891 PMCID: PMC10868394 DOI: 10.1093/jncics/pkae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 12/07/2023] [Accepted: 01/17/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND How cannabis products are being used by cancer patients and survivors in the United States is poorly understood. This study reviewed observational data to understand the modes, patterns, reasons, discontinuation, and adverse experiences of cannabis use. METHODS PubMed and PsycINFO database searches were conducted between May 2022 and November 2022. Of the 1162 studies identified, 27 studies met the inclusion criteria. The intercoder agreement was strong (0.81). RESULTS The majority (74%) of the studies were cross-sectional in design. Study samples were approximately equal proportions of men and women and majority White participants. The prevalence of cannabis use based on national samples ranged between 4.8% and 22%. The most common modes of cannabis intake were topical application (80%), smoking (73%), vaping (12%), and ingestion of edible products (10%). Younger age, male gender, being a current or former smoker, and higher socioeconomic status were associated with greater likelihood of cannabis use. The main motive for cannabis use was management of symptoms due to cancer or cancer treatment such as pain, nausea, lack of sleep, and anxiety. A majority of the participants across studies reported that cannabis helped reduce these symptoms. Lack of symptom improvement, side effects such as fatigue and paranoia, cost, and social stigma were identified as some of the reasons for discontinuing cannabis use. CONCLUSIONS It appears that cannabis may help cancer patients and survivors manage symptoms. However, more longitudinal studies are needed to determine whether positive experiences of cannabis use outweigh adverse experiences over time in this vulnerable population.
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Affiliation(s)
- Samia Amin
- Population Sciences Program, University of Hawaiʻi Cancer Center, University of Hawaiʻi at Manoa, Honolulu, HI, USA
| | - Si Woo Chae
- Population Sciences Program, University of Hawaiʻi Cancer Center, University of Hawaiʻi at Manoa, Honolulu, HI, USA
| | - Crissy T Kawamoto
- Population Sciences Program, University of Hawaiʻi Cancer Center, University of Hawaiʻi at Manoa, Honolulu, HI, USA
| | - Kristina T Phillips
- Center for Integrated Health Care Research, Kaiser Permanente Hawaii, Honolulu, HI, USA
| | - Pallav Pokhrel
- Population Sciences Program, University of Hawaiʻi Cancer Center, University of Hawaiʻi at Manoa, Honolulu, HI, USA
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9
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Boehnke KF, Wu CL, Clauw DJ. Thoughtfully Integrating Cannabis Products Into Chronic Pain Treatment. Anesth Analg 2024; 138:5-15. [PMID: 38100797 PMCID: PMC10730114 DOI: 10.1213/ane.0000000000005904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Cannabis products (CPs) and cannabis-based medicines (CBMs) are becoming increasingly available and are commonly used for pain management. The growing societal acceptance of cannabis and liberalization of cannabis laws allows patients to access CPs with minimal clinical oversight. While there is mechanistic plausibility that CPs and CBMs may be useful for pain management, the clinical trial literature is limited and does not refute or support the use of CBMs for pain management. Complicating matters, a large and growing body of observational literature shows that many people use CPs for pain management and in place of other medications. However, products and dosing regimens in existing trials are not generalizable to the current cannabis market, making it difficult to compare and reconcile these 2 bodies of literature. Given this complexity, clinicians need clear, pragmatic guidance on how to appropriately educate and work with patients who are using CBMs for pain management. In this review, we narratively synthesize the evidence to enable a clear view of current landscape and provide pragmatic advice for clinicians to use when working with patients. This advice revolves around 3 principles: (1) maintaining the therapeutic alliance; (2) harm reduction and benefit maximization; and (3) pragmatism, principles of patient-centered care, and use of best clinical judgment in the face of uncertainty. Despite the lack of certainty CPs and chronic pain management use, we believe that following these principles can make most of the clinical opportunity presented by discussions around CPs and also enhance the likelihood of clinical benefit from CPs.
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Affiliation(s)
- Kevin F. Boehnke
- Anesthesiology Department, Chronic Pain and Fatigue Research Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Christopher L. Wu
- Department of Anesthesiology, Pain Medicine and Critical Care; Hospital for Special Surgery; New York, NY, USA
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY, USA
| | - Daniel J. Clauw
- Anesthesiology Department, Chronic Pain and Fatigue Research Center, University of Michigan Medical School, Ann Arbor, MI, USA
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Lertaroonchai C, Jeerakornpassawat D, Tongsong T, Muangmool T. Factors Affecting the Decision on Cannabis Use in Gynecologic Cancer Patients After the Legalization of Cannabis. Integr Cancer Ther 2024; 23:15347354241261363. [PMID: 38874388 PMCID: PMC11179454 DOI: 10.1177/15347354241261363] [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: 02/01/2024] [Revised: 04/27/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024] Open
Abstract
OBJECTIVE To characterize the patterns of cannabis use among gynecologic cancer patients, in terms of potential factors influencing their decision-making on cannabis use, the reasons for use or non-use, and sources of information on cannabis use. METHODS From March to July 2022, gynecologic cancer patients at a clinic were interviewed and classified into 3 groups: current users, ex-users, and never-users. The received data included: demographic data, cannabis use details, reasons for using and not using, adverse events, satisfaction, and intent to use. Univariate and multivariate analysis were used to identify risk factors influencing decision-making. RESULT Among 240 participants, 11.67% were classified as current users, 28.33% as ex-users, and 60% as never-users. The significant factors influencing cannabis use decisions were advanced stage and receiving information on cannabis, regardless of the information source. The satisfaction derived from cannabis was due to the enhancement of mood and physical activity, improvement in sleep quality, stimulation of appetite, and mitigation of adverse events associated with cancer treatment. Approximately 60% of users aimed for a cancer cure. The main reasons for quitting were inability to obtain cannabis and absence of persistent cancer symptoms. CONCLUSION Among Thai patients with gynecologic cancer, 40% had a history of cannabis use. Advanced cancer stage was an independent factor for decision-making on cannabis use. Sources of information on cannabis are non-healthcare providers. Many patients intended to use cannabis for cancer cure. Also, many were satisfied with use because of a relief of unwanted symptoms, indirectly suggesting improvement in quality of life. The main reason for quitting was unavailability. The main reason for never trying was a concern of interference with treatment. Our results may guide the direction of strategy of cannabis use among patients with gynecologic cancers.
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Spraker-Perlman HL, Heidelberg RE. Cannabinoids for symptom management in children with cancer: It's complicated. Cancer 2023; 129:3522-3524. [PMID: 37641180 DOI: 10.1002/cncr.34962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Data surrounding the use of cannabinoids for symptom management in children with cancer are heterogeneous and extremely limited. Well‐designed clinical trials with specific indications, products, and outcome metrics are required before cannabinoids should be considered in frontline cancer care in children.
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Affiliation(s)
- Holly L Spraker-Perlman
- Division of Quality of Life and Palliative Care, Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - R Elyse Heidelberg
- Department of Psychology and Biobehavioral Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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Chhabra M, Ben-Eltriki M, Paul A, Lê ML, Herbert A, Oberoi S, Bradford N, Bowers A, Rassekh SR, Kelly LE. Cannabinoids for symptom management in children with cancer: A systematic review and meta-analysis. Cancer 2023; 129:3656-3670. [PMID: 37635461 DOI: 10.1002/cncr.34920] [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: 11/29/2022] [Revised: 04/20/2023] [Accepted: 05/02/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Despite the widespread use of medical cannabis, little is known regarding the safety, efficacy, and dosing of cannabis products in children with cancer. The objective of this study was to systematically appraise the existing published literature for the use of cannabis products in children with cancer. METHODS This systematic review, registered with the International Prospective Register of Systematic Reviews (CRD42020187433), searched four databases: MEDLINE, Embase, PsycINFO, and the Cochrane Library. Abstracts and full texts were screened in duplicate. Data on types of cannabis products, doses, formulations, frequencies, routes of administration, indications, and clinical and demographic details as well as reported efficacy outcomes were extracted. Data on cannabinoid-related adverse events were also summarized. RESULTS Out of 34,611 identified citations, 19 unique studies with a total of 1927 participants with cancer were included: eight retrospective chart reviews, seven randomized controlled trials, two open-label studies, and two case reports. The included studies reported the use of various cannabis products for the management of symptoms. Cannabinoids were commonly used for the management of chemotherapy-induced nausea and vomiting (11 of 19 [58%]). In controlled studies, somnolence, dizziness, dry mouth, and withdrawal due to adverse events were more commonly associated with the use of cannabinoids. Across all included studies, no serious cannabis-related adverse events were reported. CONCLUSIONS Although there is evidence to support the use of cannabis for symptom management, in children with cancer, there is a lack of rigorous evidence to inform the dosing, safety, and efficacy of cannabinoids. Because of the increasing interest in using cannabis, there is an urgent need for more research on medical cannabis in children with cancer.
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Affiliation(s)
- Manik Chhabra
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Mohamed Ben-Eltriki
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Arun Paul
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Mê-Linh Lê
- Neil John Maclean Health Sciences Library, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Anthony Herbert
- Queensland Children's Hospital, Children's Health Queensland, Brisbane, Queensland, Australia
- Cancer and Palliative Care Outcomes Centre, Queensland University of Technology, South Brisbane, Queensland, Australia
| | - Sapna Oberoi
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Pediatric Hematology-Oncology, CancerCare Manitoba, Winnipeg, Manitoba, Canada
- CancerCare Manitoba Research Institute, CancerCare Manitoba, Winnipeg, Manitoba, Canada
| | - Natalie Bradford
- Cancer and Palliative Care Outcomes Centre, Queensland University of Technology, South Brisbane, Queensland, Australia
| | - Alison Bowers
- Cancer and Palliative Care Outcomes Centre, Queensland University of Technology, South Brisbane, Queensland, Australia
| | - S Rod Rassekh
- Division of Pediatric Hematology/Oncology/BMT, Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, Manitoba, Canada
| | - Lauren E Kelly
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada
- Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
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Azizoddin DR, Cohn AM, Ulahannan SV, Henson CE, Alexander AC, Moore KN, Holman LL, Boozary LK, Sifat MS, Kendzor DE. Cannabis use among adults undergoing cancer treatment. Cancer 2023; 129:3498-3508. [PMID: 37354093 PMCID: PMC11070130 DOI: 10.1002/cncr.34922] [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: 11/29/2022] [Revised: 02/06/2023] [Accepted: 03/14/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND Little is known about the risks and benefits of cannabis use in the context of cancer care. This study characterized the prevalence, reasons for use, and perceived benefits of cannabis and compared symptoms and perceived risks between those who reported past 30-day cannabis use and those who did not. METHODS Adults undergoing cancer treatment at a National Cancer Institute-designated cancer center completed measures of sociodemographic characteristics, cannabis use, use modalities, reasons for use, perceived harms/benefits of use, physical and psychological symptoms, and other substance/medication use. Analyses compared patients who used or did not use cannabis in the past 30 days. RESULTS Participants (N = 267) were 58 years old on average, primarily female (70%), and predominantly White (88%). Over a quarter of respondents (26%) reported past 30-day cannabis use, and among those, 4.5% screened positive for cannabis use disorder. Participants who used cannabis most often used edibles (65%) or smoked cannabis (51%), and they were younger and more likely to be male, Black, and disabled, and to have lower income and Medicaid insurance than participants who did not use cannabis. Those who used cannabis reported more severe symptoms and perceived cannabis as less harmful than those who did not use cannabis. The most common medical reasons for cannabis use were pain, cancer, sleep problems, anxiety, nausea/vomiting, and poor appetite. Participants reported the greatest cannabis-related symptom relief from sleep problems, nausea/vomiting, headaches, pain, muscle spasms, and anxiety. CONCLUSIONS Patients with cancer who used cannabis perceived benefits for many symptoms, although they showed worse overall symptomatology. PLAIN LANGUAGE SUMMARY Among adults undergoing cancer treatment, 26% reported cannabis use in the past 30 days. Those who used cannabis were more likely to be male and disabled and to have lower income and Medicaid insurance than those who did not use cannabis. Participants most commonly reported using cannabis for pain, cancer, sleep, anxiety, and nausea/vomiting and reported the greatest perceived benefits for sleep, nausea/vomiting, headaches, pain, muscle spasms, and anxiety, yet participants who used cannabis also reported feeling worse physically and psychologically compared to those who did not use cannabis. Participants who used cannabis were more likely to report that cannabis was less risky to their health than alcohol, smoking, and opioids than those who did not use cannabis.
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Affiliation(s)
- Desiree R. Azizoddin
- Tobacco Settlement Endowment Trust Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
- Department of Family and Preventive Medicine, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Amy M. Cohn
- Tobacco Settlement Endowment Trust Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
- Department of Pediatrics, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Susanna V. Ulahannan
- Hematology‐Oncology Section, Department of Internal Medicine, Stephenson Cancer Center, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Christina E. Henson
- Department of Radiation Oncology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Adam C. Alexander
- Tobacco Settlement Endowment Trust Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
- Department of Family and Preventive Medicine, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Kathleen N. Moore
- Gynecologic Oncology Section, Department of Obstetrics and Gynecology, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Laura L. Holman
- Gynecologic Oncology Section, Department of Obstetrics and Gynecology, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Laili Kharazi Boozary
- Tobacco Settlement Endowment Trust Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
- Cellular and Behavioral Neurobiology, Department of Psychology, The University of Oklahoma, Norman, Oklahoma, USA
| | - Munjireen S. Sifat
- Tobacco Settlement Endowment Trust Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
| | - Darla E. Kendzor
- Tobacco Settlement Endowment Trust Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA
- Department of Family and Preventive Medicine, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
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Cherkasova V, Ilnytskyy Y, Kovalchuk O, Kovalchuk I. Transcriptome Analysis of Cisplatin, Cannabidiol, and Intermittent Serum Starvation Alone and in Various Combinations on Colorectal Cancer Cells. Int J Mol Sci 2023; 24:14743. [PMID: 37834191 PMCID: PMC10572413 DOI: 10.3390/ijms241914743] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 09/26/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Platinum-derived chemotherapy medications are often combined with other conventional therapies for treating different tumors, including colorectal cancer. However, the development of drug resistance and multiple adverse effects remain common in clinical settings. Thus, there is a necessity to find novel treatments and drug combinations that could effectively target colorectal cancer cells and lower the probability of disease relapse. To find potential synergistic interaction, we designed multiple different combinations between cisplatin, cannabidiol, and intermittent serum starvation on colorectal cancer cell lines. Based on the cell viability assay, we found that combinations between cannabidiol and intermittent serum starvation, cisplatin and intermittent serum starvation, as well as cisplatin, cannabidiol, and intermittent serum starvation can work in a synergistic fashion on different colorectal cancer cell lines. Furthermore, we analyzed differentially expressed genes and affected pathways in colorectal cancer cell lines to understand further the potential molecular mechanisms behind the treatments and their interactions. We found that synergistic interaction between cannabidiol and intermittent serum starvation can be related to changes in the transcription of genes responsible for cell metabolism and cancer's stress pathways. Moreover, when we added cisplatin to the treatments, there was a strong enrichment of genes taking part in G2/M cell cycle arrest and apoptosis.
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Affiliation(s)
| | | | - Olga Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (V.C.); (Y.I.)
| | - Igor Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (V.C.); (Y.I.)
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Brasky TM, Newton AM, Conroy S, Adib A, Adley NC, Strassels SA, Hays JL, Cooper ZD, Wagener TL, Stevens E, Plascak JJ, Krok-Schoen JL. Marijuana and Cannabidiol Use Prevalence and Symptom Management Among Patients with Cancer. CANCER RESEARCH COMMUNICATIONS 2023; 3:1917-1926. [PMID: 37772996 PMCID: PMC10515742 DOI: 10.1158/2767-9764.crc-23-0233] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/07/2023] [Accepted: 08/30/2023] [Indexed: 09/30/2023]
Abstract
Symptoms such as pain, nausea, and anxiety are common in individuals with cancer. Treatment of these issues is often challenging. Cannabis products may be helpful in reducing the severity of these symptoms. While some studies include data on the prevalence of cannabis use among patients with cancer, detailed data remain limited, and none have reported the prevalence of cannabidiol (CBD) use in this population. Adult patients with cancer attending eight clinics at a large, NCI-designated Comprehensive Cancer Center completed a detailed, cannabis-focused questionnaire between 2021 and 2022. Eligible participants were diagnosed with invasive cancer and treated in the past 12 months. Summary statistics were calculated to describe the sample regarding cannabis use. Approximately 15% (n = 142) of consented patients (n = 934) reported current cannabis use (defined as use within the past 12 months). Among which, 75% reported cannabis use in the past week. Among current cannabis users, 39% (n = 56; 6% overall) used CBD products. Current users reported using cannabis a median of 4.5 (interquartile range: 0.6–7.0) days/week, 2.0 (1.0–3.0) times per use/day, and for 3 years (0.8–30.0). Use patterns varied by route of administration. Patients reported moderate to high relief of symptoms with cannabis use. This study is the most detailed to date in terms of cannabis measurement and provides information about the current state of cannabis use in active cancer. Future studies should include complete assessments of cannabis product use, multiple recruitment sites, and diverse patient populations. SIGNIFICANCE Clinicians should be aware that patients are using cannabis products and perceive symptom relief with its use.
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Affiliation(s)
- Theodore M. Brasky
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio
| | - Alison M. Newton
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio
| | - Sara Conroy
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Anita Adib
- Division of Cancer Prevention and Control, The Ohio State University College of Medicine, Columbus, Ohio
| | - Neema C. Adley
- Department of Neuroscience, The Ohio State University College of Arts and Sciences, Columbus, Ohio
| | | | - John L. Hays
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio
| | - Ziva D. Cooper
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, California
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, California
- Department of Anesthesiology and Perioperative Medicine, University of California, Los Angeles, California
| | - Theodore L. Wagener
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio
| | - Erin Stevens
- Department of Internal Medicine, The Ohio State University College of Medicine; Columbus, Ohio
| | - Jesse J. Plascak
- Division of Cancer Prevention and Control, The Ohio State University College of Medicine, Columbus, Ohio
| | - Jessica L. Krok-Schoen
- School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, Ohio
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16
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Tait MA, Costa DS, Campbell R, Norman R, Warne LN, Schug S, Rutherford C. Health-related quality of life in patients accessing medicinal cannabis in Australia: The QUEST initiative results of a 3-month follow-up observational study. PLoS One 2023; 18:e0290549. [PMID: 37672515 PMCID: PMC10482296 DOI: 10.1371/journal.pone.0290549] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/09/2023] [Indexed: 09/08/2023] Open
Abstract
AIMS Patients with chronic health conditions not responding to conventional treatment can access medicinal cannabis (MC) prescriptions from clinicians in Australia. We aimed to assess overall health-related quality of life (HRQL), pain, fatigue, sleep, anxiety, and depression in a large real-world sample of patients accessing prescribed medicinal cannabis. We hypothesized that all patient-reported outcomes (PROs) would improve from baseline to 3-months. METHODS The QUEST Initiative is a large prospective multicenter study of patients with any chronic health condition newly prescribed medicinal cannabis between November 2020 and December 2021. Eligible patients were identified by 120 clinicians at medical centers across six Australian states. Consenting participants completed the EuroQol Group EQ-5D-5L health status questionnaire; European Organization for Research & Treatment of Cancer Quality of Life questionnaire (QLQ-C30); Patient-Reported Outcomes Measurement Information System (PROMIS) Short Forms in Fatigue and Sleep Disturbance, and the Depression Anxiety Stress Scale (DASS-21) before starting therapy, at 2-weeks titration, then monthly for 3-months. RESULTS Of the 2762 consenting participants, 2327 completed baseline and at least one follow-up questionnaire. Ages ranged between 18-97 years (mean 51y; SD = 15.4), 62.8% were female. The most commonly treated conditions were chronic pain (n = 1598/2327; 68.7%), insomnia (n = 534/2327; 22.9%), generalized anxiety (n = 508/2327; 21.5%), and mixed anxiety and depression (n = 259/2327; 11%). Across the whole cohort both EQ-5D-5L utility scores and QLQ-C30 summary scores showed clinically meaningful improvement in HRQL from baseline to mean follow-up with d = 0.54 (95%CI:0.47 to 0.59) and d = 0.64 (95%CI:0.58 to 0.70) respectively; and clinically meaningful improvement in fatigue (d = 0.54; 95%CI:0.48 to 0.59). There was clinically meaningful reduction of pain for those with chronic pain (d = 0.65; 95%CI:0.57 to 0.72); significant improvements for those with moderate to extremely severe anxiety (X2 = 383; df = 4; p<0.001) and depression (X2 = 395; df = 4; p<0.001); and no changes in sleep disturbance. CONCLUSIONS We observed statistically significant, clinically meaningful improvements in overall HRQL and fatigue over the first 3-months in patients with chronic health conditions accessing prescribed medical cannabis. Anxiety, depression, and pain also improved over time, particularly for those with corresponding health conditions. The study continues to follow-up patients until 12-months to determine whether improvements in PROs are maintained long-term. TRAIL REGISTRATION Study registration - Australian New Zealand Clinical Trials Registry: ACTRN12621000063819. https://www.australianclinicaltrials.gov.au/anzctr/trial/ACTRN12621000063819.
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Affiliation(s)
- Margaret-Ann Tait
- Faculty of Science, School of Psychology, The University of Sydney, Sydney, New South Wales, Australia
- Faculty of Medicine and Health, Sydney Nursing School, The University of Sydney, Sydney, New South Wales, Australia
| | - Daniel S.J. Costa
- Faculty of Science, School of Psychology, The University of Sydney, Sydney, New South Wales, Australia
| | - Rachel Campbell
- Faculty of Science, School of Psychology, The University of Sydney, Sydney, New South Wales, Australia
| | - Richard Norman
- School of Population Health, Curtin University, Perth, Australia
| | - Leon N. Warne
- Little Green Pharma, West Perth, Western Australia, Australia
- College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
| | - Stephan Schug
- School of Medicine and Pharmacology, University of Western Australia, Perth, Australia
| | - Claudia Rutherford
- Faculty of Medicine and Health, Sydney Nursing School, The University of Sydney, Sydney, New South Wales, Australia
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Salz T, Meza AM, Chino F, Mao JJ, Raghunathan NJ, Jinna S, Brens J, Furberg H, Korenstein D. Cannabis use among recently treated cancer patients: perceptions and experiences. Support Care Cancer 2023; 31:545. [PMID: 37650961 PMCID: PMC10585595 DOI: 10.1007/s00520-023-07994-y] [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: 03/24/2023] [Accepted: 08/11/2023] [Indexed: 09/01/2023]
Abstract
PURPOSE To characterize cannabis use among cancer patients, we aimed to describe 1) patterns of cannabis use across multiple cancer sites; 2) perceived goals, benefits, harms of cannabis; and 3) communication about cannabis. METHODS Patients with 9 different cancers treated at Memorial Sloan Kettering Cancer Center between March and August 2021 completed an online or phone survey eliciting cannabis use, attitudes, and communication about cannabis. Multivariable logistic regression estimated the association of cancer type and cannabis use, adjusting for sociodemographic characteristics and prior cannabis use. RESULTS Among 1258 respondents, 31% used cannabis after diagnosis, ranging from 25% for lung cancer to 59% for testicular cancer. Characteristics associated with cannabis use included younger age, lower education level, and cancer type. In multivariable analysis, compared to lung cancer patients, gastrointestinal cancer patients were more likely to use cannabis (odds ratio [OR] 2.64, 95% confidence interval [CI] 1.25-5.43). Cannabis use in the year prior to diagnosis was strongly associated with cannabis use after diagnosis (OR 19.13, 95% CI 11.92-30.72). Among users, reasons for use included difficulty sleeping (48%); stress, anxiety, or depression (46%); and pain (42%). Among respondents who used cannabis to improve symptoms, 70-90% reported improvement; < 5% reported that any symptom worsened. Only 25% discussed cannabis with healthcare providers. CONCLUSIONS Almost a third of cancer patients use cannabis, largely for symptom management. Oncologists may not know about their patients' cannabis use. To improve decision making about cannabis use during cancer care, research is needed to determine benefits and harms of cannabis use.
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Affiliation(s)
- Talya Salz
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY, 10065, USA.
| | - Akriti Mishra Meza
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY, 10065, USA
| | - Fumiko Chino
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jun J Mao
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nirupa J Raghunathan
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sankeerth Jinna
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY, 10065, USA
| | - Jessica Brens
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Helena Furberg
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, 1275 York Ave., New York, NY, 10065, USA
| | - Deborah Korenstein
- Department of Internal Medicine, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
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18
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McClure EA, Walters KJ, Tomko RL, Dahne J, Hill EG, McRae-Clark AL. Cannabis use prevalence, patterns, and reasons for use among patients with cancer and survivors in a state without legal cannabis access. Support Care Cancer 2023; 31:429. [PMID: 37382737 PMCID: PMC10351025 DOI: 10.1007/s00520-023-07881-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/10/2023] [Indexed: 06/30/2023]
Abstract
PURPOSE Cannabis use among patients with cancer is common, yet data are limited regarding use patterns, reasons for use, and degree of benefit, which represents an unmet need in cancer care delivery. This need is salient in states without legal cannabis programs, where perceptions and behavior among providers and patients may be affected. METHODS A cross-sectional survey of patients with cancer and survivors at the Hollings Cancer Center at the Medical University of South Carolina (no legal cannabis marketplace in SC) was completed as part of the NCI Cannabis Supplement. Patients (ages 18 +) were recruited using probability sampling from patient lists (N = 7749 sampled; N = 1036 completers). Weight-adjusted Chi-square tests compared demographics and cancer details among patients using cannabis since diagnosis versus those not using cannabis, while weighted descriptives are presented for cannabis use prevalence, consumption, symptom management, and legalization beliefs. RESULTS Weighted prevalence of cannabis use since diagnosis was 26%, while current cannabis use was 15%. The most common reasons for cannabis use after diagnosis were difficulty sleeping (50%), pain (46%), and mood changes and stress, anxiety, or depression (45%). Symptom improvement was endorsed for pain (57%), stress/anxiety/depression (64%), difficulty sleeping (64%), and loss of appetite (40%). CONCLUSIONS Among patients with cancer and survivors at a NCI-designated cancer center within SC, a state without legal access to medical cannabis, prevalence rates, and reasons for cannabis use are consistent with emerging literature in oncology populations. These findings have implications for care delivery, and work is needed to inform recommendations for providers and patients.
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Affiliation(s)
- Erin A McClure
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA.
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA.
| | - Kyle J Walters
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Rachel L Tomko
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Jennifer Dahne
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Elizabeth G Hill
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Aimee L McRae-Clark
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
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To J, Davis M, Sbrana A, Alderman B, Hui D, Mukhopadhyay S, Bouleuc C, Case AA, Amano K, Crawford GB, de Feo G, Tanco K, Garsed J. MASCC guideline: cannabis for cancer-related pain and risk of harms and adverse events. Support Care Cancer 2023; 31:202. [PMID: 36872397 DOI: 10.1007/s00520-023-07662-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 02/24/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND Approximately 18% of patients with cancer use cannabis at one time as palliation or treatment for their cancer. We performed a systematic review of randomized cannabis cancer trials to establish a guideline for its use in pain and to summarize the risk of harm and adverse events when used for any indication in cancer patients. METHODS A systematic review of randomized trials with or without meta-analysis was carried out from MEDLINE, CCTR, Embase, and PsychINFO. The search involved randomized trials of cannabis in cancer patients. The search ended on November 12, 2021. The Jadad grading system was used for grading quality. Inclusion criteria for articles were randomized trials or systematic reviews of randomized trials of cannabinoids versus either placebo or active comparator explicitly in adult patients with cancer. RESULTS Thirty-four systematic reviews and randomized trials met the eligibility criteria for cancer pain. Seven were randomized trials involving patients with cancer pain. Two trials had positive primary endpoints, which could not be reproduced in similarly designed trials. High-quality systematic reviews with meta-analyses found little evidence that cannabinoids are an effective adjuvant or analgesic to cancer pain. Seven systematic reviews and randomized trials related to harms and adverse events were included. There was inconsistent evidence about the types and levels of harm patients may experience when using cannabinoids. CONCLUSION The MASCC panel recommends against the use of cannabinoids as an adjuvant analgesic for cancer pain and suggests that the potential risk of harm and adverse events be carefully considered for all cancer patients, particularly with treatment with a checkpoint inhibitor.
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Affiliation(s)
- Josephine To
- Division of Aged Care, Rehabilitation and Palliative Care, Northern Adelaide Local Health Network, Adelaide, Australia
| | - Mellar Davis
- Palliative Care Department, Geisinger Medical System, Danville, USA.
| | | | | | - David Hui
- Department of Palliative Care, Rehabilitation and Integrative Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Carole Bouleuc
- Department of Supportive and Palliative Care, P.S.L. University, Institut Curie, Paris, France
| | - Amy A Case
- Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
- Division of Geriatrics and Palliative Medicine, University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Koji Amano
- Department of Palliative Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Gregory B Crawford
- Northern Adelaide Local Health Network, South Australia, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
| | | | - Kimberson Tanco
- Department of Palliative Care, Rehabilitation and Integrative Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
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20
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HaGani N, Sznitman S, Dor M, Bar-Sela G, Oren D, Margolis-Dorfman L, Goor-Aryeh I, Green MS. Attitudes Toward the Use of Medical Cannabis and the Perceived Efficacy, Side-effects and Risks: A Survey of Patients, Nurses and Physicians. J Psychoactive Drugs 2022; 54:393-402. [PMID: 34893011 DOI: 10.1080/02791072.2021.2009598] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Gaps between physician and patient perceptions may lead to misunderstandings and mismanage of treatment. There are sparse data about the differences in opinions toward medical cannabis (MC) between patients and health professionals. The aim of this study was to examine the attitudes toward MC, its perceived efficacy, side effects and risk of dependency, among patients, nurses and physicians. A cross-sectional study of samples of 430 patients, 65 nurses and 65 physicians in two large medical centers in Israel. Questionnaires were administered on attitudes, perceived efficacy, side-effects and perceived risks of dependency. Compared with nurses and physicians, patients who were using MC had the most positive attitudes toward MC (p < .001). Younger age, high school education, being Jewish and ever using MC, were associated with more positive attitudes toward MC among patients (p < .001). Among nurses and physicians, having an oncology specialty predicted more positive attitudes toward MC. Physicians had a less positive attitude toward MC compared to nurses (p < .01). Our study provides evidence that physicians are less positive in their views toward MC compared to nurses and patients. More information and awareness to MC may reduce the gap in perceptions between physicians and patients.
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Affiliation(s)
- Neta HaGani
- School of Public Heath, University of Haifa, Haifa, Israel.,Rambam Medical Center, Haifa, Israel
| | | | - Michael Dor
- Department of Health Systems Management, Ariel University, Ari'el, Israel
| | - Gil Bar-Sela
- Oncology and Hematology Division, Emek Medical Center, Afula, Israel.,Faculty of Medicine, Technion, Haifa, Israel
| | - Dana Oren
- Pain Medicine Institute, Sheba Medical Center, Ramat Gan, Israel
| | | | - Itay Goor-Aryeh
- Pain Medicine Institute, Sheba Medical Center, Ramat Gan, Israel
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21
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Marchese M, Zhu C, Charbonneau LF, Peragine C, De Angelis C. Description and Disposition of Patients With Cancer Accessing a Novel, Pharmacist-Led Cannabis Consultation Service. JCO Oncol Pract 2022; 18:e1777-e1786. [PMID: 35609230 DOI: 10.1200/op.21.00748] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
PURPOSE The Cannabis Consultation Service (CCS) is an innovative pharmacist-led resource at the Sunnybrook Odette Cancer Centre. Its mandate is to provide education and guide patients through access and appropriate use of high-quality plant-derived cannabinoids (PDCs). Our objective was to describe the CCS, explain its processes, and characterize patient disposition with respect to use of PDCs. METHODS We retrospectively reviewed the charts of patients referred to the CCS from July 13, 2020, to March 05, 2021. We used descriptive statistics to report on the patient population and service metrics. RESULTS During the 34-week period, 96 patients accessed the CCS (median age, 61 years). The top reasons for CCS consultation were management of cancer pain, insomnia, and general interest. Medical cannabis was supported as an option in 44/96 patients. Reasons for not supporting PDC use included lack of indication, potential drug interaction/contraindication, or requiring treatment with first-line therapy. Of the 40 patients requiring a medical document, 22 initiated therapy. The most common product used was a 2:50 THC:CBD (Tetrahydrocannabinol:Cannabidiol) cannabis oil. At the date of last contact, few patients remained on therapy because of lack of benefit, patient choice, and/or hesitancy. CONCLUSION Despite patients with cancer having interest in seeking PDCs for symptom management, only a few initiated and continued therapy. Pharmacists have an opportunity to advise patients and the oncology team on the risks and benefits of PDCs. These results can be used to support the development of medical cannabis programs by oncology centers and focus future research priorities.
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Affiliation(s)
- Maria Marchese
- Department of Pharmacy, Sunnybrook Odette Cancer Centre, Toronto, Canada.,Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Catherine Zhu
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - L Flay Charbonneau
- Department of Pharmacy, Sunnybrook Odette Cancer Centre, Toronto, Canada
| | - Christine Peragine
- Department of Pharmacy, Sunnybrook Odette Cancer Centre, Toronto, Canada
| | - Carlo De Angelis
- Department of Pharmacy, Sunnybrook Odette Cancer Centre, Toronto, Canada.,Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada.,Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Canada
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22
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Manyau MC, Changadzo KP, Mudziti T. Perceptions and prevalence of marijuana use among cancer patients managed at an outpatient department in Zimbabwe: A brief report. J Oncol Pharm Pract 2022:10781552221118026. [PMID: 35944143 DOI: 10.1177/10781552221118026] [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: 11/15/2022]
Abstract
BACKGROUND Globally, marijuana is becoming an acceptable complementary medicine for symptom management in cancer. At the time that the study was conducted, Zimbabwean laws only allowed for the cultivation of marijuana for medical and scientific use. As of 18 July 2022, the national medicines regulator released a circular allowing the licensing, distribution, and use of cannabidiol-based products. Anecdotes indicate there is medical marijuana use among Zimbabwean patients with cancer. We sought to determine the prevalence, patterns of use and perceptions of medical marijuana among patients with cancer. METHODS A cross-sectional survey was used to determine patterns and perceptions of marijuana use among outpatient patients with cancer. The study included adults attending the outpatient oncology clinic at Parirenyatwa Hospital Radiotherapy Treatment Center. RESULTS Fifty participants with a median age of 50.5 years (IQR: 41-58) completed the questionnaire, and 28.0% of them were male. The prevalence of marijuana use in the sample was 24.0% (95% CI 13.9-38.2). Most marijuana users were male (83.3%, p < 0.001). The rate of medical marijuana use among users was 66.7%. Participants were generally neutral concerning the benefits of marijuana and how it should be regulated. Just under 50% indicated that they would be open to using it if it were legal. CONCLUSIONS AND RECOMMENDATIONS The prevalence of marijuana use in the sample was comparable to other jurisdictions. Perceptions toward medical marijuana were generally neutral. Consequently, for medical marijuana and/or cannabidiol-based products to become acceptable in the Zimbabwean context, there is need for the dissemination of evidence-based information on their benefits.
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Affiliation(s)
- Maudy Cp Manyau
- Department of Pharmacy and Pharmaceutical Sciences, 37595University of Zimbabwe, Harare, Zimbabwe
| | - Kudzanai P Changadzo
- Department of Pharmacy and Pharmaceutical Sciences, 37595University of Zimbabwe, Harare, Zimbabwe
| | - Tinashe Mudziti
- Department of Pharmacy and Pharmaceutical Sciences, 37595University of Zimbabwe, Harare, Zimbabwe
- Newlands Clinic, Harare, Zimbabwe
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23
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Zeraatkar D, Cooper MA, Agarwal A, Vernooij RWM, Leung G, Loniewski K, Dookie JE, Ahmed MM, Hong BY, Hong C, Hong P, Couban R, Agoritsas T, Busse JW. Long-term and serious harms of medical cannabis and cannabinoids for chronic pain: a systematic review of non-randomised studies. BMJ Open 2022; 12:e054282. [PMID: 35926992 PMCID: PMC9358949 DOI: 10.1136/bmjopen-2021-054282] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To establish the prevalence of long-term and serious harms of medical cannabis for chronic pain. DESIGN Systematic review and meta-analysis. DATA SOURCES MEDLINE, EMBASE, PsycINFO and CENTRAL from inception to 1 April 2020. STUDY SELECTION Non-randomised studies reporting on harms of medical cannabis or cannabinoids in adults or children living with chronic pain with ≥4 weeks of follow-up. DATA EXTRACTION AND SYNTHESIS A parallel guideline panel provided input on the design and interpretation of the systematic review, including selection of adverse events for consideration. Two reviewers, working independently and in duplicate, screened the search results, extracted data and assessed risk of bias. We used random-effects models for all meta-analyses and the Grades of Recommendations, Assessment, Development and Evaluation approach to evaluate the certainty of evidence. RESULTS We identified 39 eligible studies that enrolled 12 143 adult patients with chronic pain. Very low certainty evidence suggests that adverse events are common (prevalence: 26.0%; 95% CI 13.2% to 41.2%) among users of medical cannabis for chronic pain, particularly any psychiatric adverse events (prevalence: 13.5%; 95% CI 2.6% to 30.6%). Very low certainty evidence, however, indicates serious adverse events, adverse events leading to discontinuation, cognitive adverse events, accidents and injuries, and dependence and withdrawal syndrome are less common and each typically occur in fewer than 1 in 20 patients. We compared studies with <24 weeks and ≥24 weeks of cannabis use and found more adverse events reported among studies with longer follow-up (test for interaction p<0.01). Palmitoylethanolamide was usually associated with few to no adverse events. We found insufficient evidence addressing the harms of medical cannabis compared with other pain management options, such as opioids. CONCLUSIONS There is very low certainty evidence that adverse events are common among people living with chronic pain who use medical cannabis or cannabinoids, but that few patients experience serious adverse events.
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Affiliation(s)
- Dena Zeraatkar
- Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts, USA
| | - Matthew Adam Cooper
- Michael G. Degroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Arnav Agarwal
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Robin W M Vernooij
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Utrecht, The Netherlands
| | - Gareth Leung
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Kevin Loniewski
- Faculty of Health, York University, Toronto, Ontario, Canada
| | - Jared E Dookie
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Muhammad Muneeb Ahmed
- Michael G. Degroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Brian Y Hong
- Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Chris Hong
- Health Research Methods, Evidence, and Impact, University of Toronto Faculty of Medicine, Toronto, Ontario, Canada
| | - Patrick Hong
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Rachel Couban
- Michael G. DeGroote Institute for Pain Research and Care, McMaster University, Hamilton, Ontario, Canada
| | - Thomas Agoritsas
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
- Division of General Internal Medicine & Division of Epidemiology, University Hospitals Geneva, Geneve, Switzerland
| | - Jason W Busse
- Anesthesia, McMaster University, Hamilton, Ontario, Canada
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24
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Boehnke KF, Dean O, Haffajee RL, Hosanagar A. U.S. Trends in Registration for Medical Cannabis and Reasons for Use From 2016 to 2020 : An Observational Study. Ann Intern Med 2022; 175:945-951. [PMID: 35696691 DOI: 10.7326/m22-0217] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Cannabis policy liberalization has increased cannabis availability for medical or recreational purposes. Up-to-date trends in medical cannabis licensure can inform clinical policy and care. OBJECTIVE To describe recent trends in medical cannabis licensure in the United States. DESIGN Ecological study with repeated measures. SETTING State registry data via state reports and data requests on medical cannabis licensure from 2016 to 2020. PARTICIPANTS Medical cannabis patients (persons with medical cannabis licenses) in the United States. MEASUREMENTS Total patient volume, patients per 10 000 of total population, and patient-reported qualifying conditions (that is, symptoms or conditions qualifying patients for licensure)-including whether these symptoms align with current therapeutic evidence of cannabis-cannabinoid efficacy. RESULTS In 2020, 26 states and Washington, DC reported patient numbers, and 19 states reported patient-reported qualifying conditions. Total enrolled patients increased approximately 4.5-fold from 678 408 in 2016 to 2 974 433 in 2020. Patients per 10 000 total population generally increased from 2016 to 2020, most dramatically in Oklahoma (927.1 patients per 10 000 population). However, enrollment increased in states without recreational legalization (that is, medical-only states), whereas enrollment decreased in 5 of 7 with recreational legalization (that is, recreational states). In 2020, 68.2% of patient-reported qualifying conditions had substantial or conclusive evidence of therapeutic value versus 84.6% in 2016. Chronic pain was the most common patient-reported qualifying condition in 2020 (60.6%), followed by posttraumatic stress disorder (10.6%). LIMITATION Missing state data; lack of rationale for discontinuing medical cannabis licensure. CONCLUSION Enrollment in medical cannabis programs approximately increased 4.5-fold from 2016 to 2020, although enrollment decreased in recreational states. Use for conditions or symptoms without a strong evidence basis increased from 15.4% (2016) to 31.8% (2020). Thoughtful regulatory and clinical strategies are needed to effectively manage this rapidly changing landscape. PRIMARY FUNDING SOURCE National Institute on Drug Abuse of the National Institutes of Health.
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Affiliation(s)
- Kevin F Boehnke
- Anesthesiology Department, Chronic Pain and Fatigue Research Center, University of Michigan Medical School, Ann Arbor, Michigan (K.F.B.)
| | - Owen Dean
- College of Literature, Science, and the Arts, University of Michigan, Ann Arbor, Michigan (O.D.)
| | - Rebecca L Haffajee
- Office of the Assistant Secretary for Planning and Evaluation, U.S. Department of Health & Human Services, Washington, DC (R.L.H.)
| | - Avinash Hosanagar
- Veterans Affairs Ann Arbor Healthcare System and Department of Psychiatry, University of Michigan Medical School, Ann Arbor, Michigan (A.H.)
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25
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Aviram J, Lewitus GM, Vysotski Y, Amna MA, Ouryvaev A, Procaccia S, Cohen I, Leibovici A, Akria L, Goncharov D, Mativ N, Kauffman A, Shai A, Bar-Sela G, Meiri D. The Effectiveness and Safety of Medical Cannabis for Treating Cancer Related Symptoms in Oncology Patients. FRONTIERS IN PAIN RESEARCH 2022; 3:861037. [PMID: 35669038 PMCID: PMC9163497 DOI: 10.3389/fpain.2022.861037] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 04/25/2022] [Indexed: 12/12/2022] Open
Abstract
The use of medical cannabis (MC) to treat cancer-related symptoms is rising. However, there is a lack of long-term trials to assess the benefits and safety of MC treatment in this population. In this work, we followed up prospectively and longitudinally on the effectiveness and safety of MC treatment. Oncology patients reported on multiple symptoms before and after MC treatment initiation at one-, three-, and 6-month follow-ups. Oncologists reported on the patients' disease characteristics. Intention-to-treat models were used to assess changes in outcomes from baseline. MC treatment was initiated by 324 patients and 212, 158 and 126 reported at follow-ups. Most outcome measures improved significantly during MC treatment for most patients (p < 0.005). Specifically, at 6 months, total cancer symptoms burden declined from baseline by a median of 18%, from 122 (82-157) at baseline to 89 (45-138) at endpoint (-18.98; 95%CI= -26.95 to -11.00; p < 0.001). Reported adverse effects were common but mostly non-serious and remained stable during MC treatment. The results of this study suggest that MC treatment is generally safe for oncology patients and can potentially reduce the burden of associated symptoms with no serious MC-related adverse effects.
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Affiliation(s)
- Joshua Aviram
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| | - Gil M. Lewitus
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yelena Vysotski
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| | | | - Anton Ouryvaev
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | - Shiri Procaccia
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
| | - Idan Cohen
- Cancer Center, HaEmek Medical Center, Afula, Israel
| | - Anca Leibovici
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | - Luiza Akria
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | | | - Neomi Mativ
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | - Avia Kauffman
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
| | - Ayelet Shai
- Department of Oncology, Galilee Medical Center, Nahariya, Israel
- Azrielly Faculty of Medicine, Bar Ilan University, Zafed, Israel
| | - Gil Bar-Sela
- Cancer Center, HaEmek Medical Center, Afula, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - David Meiri
- Faculty of Biology, Biology Department, Technion-Israel Institute of Technology, Haifa, Israel
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26
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Li X, Diviant JP, Stith SS, Brockelman F, Keeling K, Hall B, Vigil JM. The Effects of Consuming <b><i>Cannabis</i></b> Flower for Treatment of Fatigue. Med Cannabis Cannabinoids 2022; 5:76-84. [DOI: 10.1159/000524057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/19/2022] [Indexed: 11/19/2022] Open
Abstract
<b><i>Objectives:</i></b> We measure for the first time how commercially available <i>Cannabis</i> flower products affect feelings of fatigue. <b><i>Methods:</i></b> A total of 1,224 people recorded 3,922 <i>Cannabis</i> flower self-administration sessions between June 6, 2016, and August 7, 2019, using the Releaf App. Usage sessions included real-time subjective changes in fatigue intensity levels prior to and following <i>Cannabis</i> consumption, <i>Cannabis</i> flower characteristics (labeled phenotype, cannabinoid potency levels), combustion method, and any potential experienced side effects. <b><i>Results:</i></b> On average, 91.94% of people experienced decreased fatigue following consumption with an average symptom intensity reduction of 3.48 points on a 0–10 visual analog scale (SD = 2.70, <i>d</i> = 1.60, <i>p</i> < 0.001). While labeled plant phenotypes (“<i>C. indica</i>,” “<i>C. sativa</i>,” or “hybrid”) did not differ in symptom relief, people that used joints to combust the flower reported greater symptom relief than pipe or vaporizer users. Across cannabinoid levels, tetrahydrocannabinol, and cannabidiol levels were generally not associated with changes in symptom intensity levels. <i>Cannabis</i> use was associated with several negative side effects that correspond to increased feelings of fatigue (e.g., feeling unmotivated, couch-locked) among a minority of users (<24% of users), with slightly more users (up to 37%) experiencing a positive side effect that corresponds to increased energy (e.g., feeling active, energetic, frisky, or productive). <b><i>Conclusions:</i></b> The findings suggest that the majority of patients experience decreased fatigue from consumption of <i>Cannabis</i> flower consumed in vivo, although the magnitude of the effect and extent of side effects experienced likely vary with individuals’ metabolic states and the synergistic chemotypic properties of the plant.
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27
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Marijuana use among US adults with cancer: findings from the 2018–2019 Behavioral Risk Factor Surveillance System. J Cancer Surviv 2022:10.1007/s11764-021-01138-z. [DOI: 10.1007/s11764-021-01138-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 11/10/2021] [Indexed: 10/18/2022]
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28
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Vinette B, Côté J, El-Akhras A, Mrad H, Chicoine G, Bilodeau K. Routes of administration, reasons for use, and approved indications of medical cannabis in oncology: a scoping review. BMC Cancer 2022; 22:319. [PMID: 35331185 PMCID: PMC8953058 DOI: 10.1186/s12885-022-09378-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 03/07/2022] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Some patients diagnosed with cancer use medical cannabis to self-manage undesirable symptoms, including nausea and pain. To improve patient safety and oncological care quality, the routes of administration for use of medical cannabis, patients' reasons, and prescribed indications must be better understood. METHODS Based on the Joanna Briggs Institute guidelines, a scoping review was conducted to map the current evidence regarding the use of medical cannabis in oncological settings based on the experiences of patients diagnosed with cancer and their healthcare providers. A search strategy was developed with a scientific librarian which included five databases (CINAHL, Web of Science, Medline, Embase, and PsycINFO) and two grey literature sources (Google Scholar and ProQuest). The inclusion criteria were: 1) population: adults aged 18 and over diagnosed with cancer; 2) phenomena of interest: reasons for cannabis use and/or the prescribed indications for medical cannabis; 3) context: oncological setting. French- or English-language primary empirical studies, knowledge syntheses, and grey literature published between 2000 and 2021 were included. Data were extracted by two independent reviewers and subjected to a thematic analysis. A narrative description approach was used to synthesize and present the findings. RESULTS We identified 5,283 publications, of which 163 met the eligibility criteria. Two main reasons for medical cannabis use emerged from the thematic analysis: limiting the impacts of cancer and its side effects; and staying connected to others. Our results also indicated that medical cannabis is mostly used for three approved indications: to manage refractory nausea and vomiting, to complement pain management, and to improve appetite and food intake. We highlighted 11 routes of administration for medical cannabis, with oils and oral solutions the most frequently reported. CONCLUSION Future studies should consider the multiple routes of administration for medical cannabis, such as inhalation and edibles. Our review highlights that learning opportunities would support the development of healthcare providers' knowledge and skills in assessing the needs and preferences of patients diagnosed with cancer who use medical cannabis.
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Affiliation(s)
- Billy Vinette
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada.
- Research Chair in Innovative Nursing Practices, Montreal, QC, Canada.
- Quebec Network On Nursing Intervention Research, Montreal, QC, Canada.
- Center for Innovation in Nursing Education, Montreal, QC, Canada.
| | - José Côté
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
- Research Chair in Innovative Nursing Practices, Montreal, QC, Canada
- Quebec Network On Nursing Intervention Research, Montreal, QC, Canada
- Research center of the Montreal University Hospital Center, Montreal, QC, Canada
| | - Ali El-Akhras
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
| | - Hazar Mrad
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
| | - Gabrielle Chicoine
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
- Research Chair in Innovative Nursing Practices, Montreal, QC, Canada
- Quebec Network On Nursing Intervention Research, Montreal, QC, Canada
- Center for Innovation in Nursing Education, Montreal, QC, Canada
- Research center of the Montreal University Hospital Center, Montreal, QC, Canada
| | - Karine Bilodeau
- Faculty of Nursing, University of Montreal, Montreal, QC, Canada
- Quebec Network On Nursing Intervention Research, Montreal, QC, Canada
- Center for Innovation in Nursing Education, Montreal, QC, Canada
- Research center of the Montreal University Hospital Center, Montreal, QC, Canada
- Research Center of the Centre Intégré Universitaire de Santé Et de Services Sociaux de L'Est-de-L'Île-de-Montréal, Montreal, QC, Canada
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29
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Makki I, Zheng-Lin B, Kohli M. Medical marijuana knowledge and attitudes amongst internal medicine residents. BMC PRIMARY CARE 2022; 23:38. [PMID: 35240989 PMCID: PMC8895539 DOI: 10.1186/s12875-022-01651-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 02/24/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Mounting evidence suggests the safety and efficacy of medical marijuana (MM) in treating chronic ailments, including chronic pain, epilepsy, and anorexia. Despite incremental use of medical and recreational cannabinoids, current limited evidence shows generalized unpreparedness of medical providers to discuss or recommend these substances to their patients. Herein, the present study aims to examine internal medicine residents' knowledge of marijuana and their attitude towards its medical use. METHODS This is a descriptive cross-sectional study. A survey with 12 standardized queries was created and distributed among the internal medicine residents from Mount Sinai Morningside-West (MSMW) program from July 2020 to December 2020. Participants included preliminary and categorical residents from post-graduate years one to three. The survey consisted of self-assessment of residents' knowledge on the indication, contraindication, adverse effects of MM. RESULTS Eighty-six (59%) out of 145 residents completed the questionnaire. Despite most trainees (70%) having considered certifying the use of MM for their patients, over 90% reported none to little knowledge on its use. Approximately 80% of the surveyed residents expressed willingness to receive an appropriate educational curriculum. CONCLUSION To the best of our knowledge, this is the first study that indicated a critical lack of medical marijuana-related knowledge in surveyed internal medicine residents. In a population with growing cannabis consumption, physician training on the indication, toxicity, and drug interaction of cannabinoids is warranted.
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Affiliation(s)
- Iman Makki
- Department of Medicine, Mount Sinai Morningside and Mount Sinai West, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Binbin Zheng-Lin
- Department of Medicine, Mount Sinai Morningside and Mount Sinai West, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Maanit Kohli
- Department of Medicine, Mount Sinai Morningside and Mount Sinai West, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Division of Hospital Medicine, Department of Medicine, Mount Sinai Morningside and Mount Sinai West, Icahn School of Medicine at Mount Sinai, 1000 10th Ave, New York, NY, 10019, USA.
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30
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Abstract
As medical cannabis becomes legal in more states, cancer patients are
increasingly interested in the potential utility of the ancient
botanical in their treatment regimen. Although eager to discuss
cannabis use with their oncologist, patients often find that their
provider reports that they do not have adequate information to be
helpful. Oncologists, so dependent on evidence-based data to guide
their treatment plans, are dismayed by the lack of published
literature on the benefits of medical cannabis. This results largely
from the significant barriers that have existed to effectively thwart
the ability to conduct trials investigating the potential therapeutic
efficacy of the plant. This is a narrative review aimed at clinicians,
summarizing cannabis phytochemistry, trials in the areas of nausea and
vomiting, appetite, pain and anticancer activity, including assessment
of case reports of antitumor use, with reflective assessments of the
quality and quantity of evidence. Despite preclinical evidence and
social media claims, the utility of cannabis, cannabinoids or
cannabis-based medicines in the treatment of cancer remains to be
convincingly demonstrated. With an acceptable safety profile, cannabis
and its congeners may be useful in managing symptoms related to cancer
or its treatment. Further clinical trials should be conducted to
evaluate whether the preclinical antitumor effects translate into
benefit for cancer patients. Oncologists should familiarize themselves
with the available database to be able to better advise their patients
on the potential uses of this complementary botanical therapy.
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Cherkasova V, Kovalchuk O, Kovalchuk I. Cannabinoids and Endocannabinoid System Changes in Intestinal Inflammation and Colorectal Cancer. Cancers (Basel) 2021; 13:4353. [PMID: 34503163 PMCID: PMC8430689 DOI: 10.3390/cancers13174353] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 08/25/2021] [Indexed: 01/02/2023] Open
Abstract
Despite the multiple preventive measures and treatment options, colorectal cancer holds a significant place in the world's disease and mortality rates. The development of novel therapy is in critical need, and based on recent experimental data, cannabinoids could become excellent candidates. This review covered known experimental studies regarding the effects of cannabinoids on intestinal inflammation and colorectal cancer. In our opinion, because colorectal cancer is a heterogeneous disease with different genomic landscapes, the choice of cannabinoids for tumor prevention and treatment depends on the type of the disease, its etiology, driver mutations, and the expression levels of cannabinoid receptors. In this review, we describe the molecular changes of the endocannabinoid system in the pathologies of the large intestine, focusing on inflammation and cancer.
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Affiliation(s)
| | - Olga Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 7X8, Canada;
| | - Igor Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 7X8, Canada;
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32
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Zylla DM, Eklund J, Gilmore G, Gavenda A, Guggisberg J, VazquezBenitez G, Pawloski PA, Arneson T, Richter S, Birnbaum AK, Dahmer S, Tracy M, Dudek A. A randomized trial of medical cannabis in patients with stage IV cancers to assess feasibility, dose requirements, impact on pain and opioid use, safety, and overall patient satisfaction. Support Care Cancer 2021; 29:7471-7478. [PMID: 34085149 DOI: 10.1007/s00520-021-06301-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 05/14/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE The prevalence of medical cannabis (MC) use in patients with cancer is growing, but questions about safety, efficacy, and dosing remain. Conducting randomized, controlled trials (RCTs) using state-sponsored MC programs is novel and could provide data needed to guide patients and providers. METHODS A pilot RCT of patients with stage IV cancer requiring opioids was conducted. Thirty patients were randomized 1:1 to early cannabis (EC, n = 15) versus delayed start cannabis (DC, n = 15). The EC group obtained 3 months (3 M) of MC through a state program at no charge, while the DC group received standard oncology care without MC for the first 3 M. Patients met with licensed pharmacists at one of two MC dispensaries to determine a suggested MC dosing, formulation, and route. Patients completed surveys on pain levels, opioid/MC use, side effects, and overall satisfaction with the study. RESULTS Interest in the study was high as 36% of patients who met eligibility criteria ultimately enrolled. The estimated mean daily THC and CBD allotments at 3 M were 34 mg and 17 mg, respectively. A higher proportion of EC patients achieved a reduction in opioid use and improved pain control. No serious safety issues were reported, and patients reported high satisfaction. CONCLUSION Conducting RCTs using a state cannabis program is feasible. The addition of MC to standard oncology care was well-tolerated and may lead to improved pain control and lower opioid requirements. Conducting larger RCTs with MC in state-sponsored programs may guide oncology providers on how to safely and effectively incorporate MC for interested patients.
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Affiliation(s)
- Dylan M Zylla
- The Cancer Research Center, HealthPartners/Park Nicollet, Minneapolis, MN, USA.
| | - Justin Eklund
- The Cancer Research Center, HealthPartners/Park Nicollet, Minneapolis, MN, USA
| | - Grace Gilmore
- The Cancer Research Center, HealthPartners/Park Nicollet, Minneapolis, MN, USA
| | - Alissa Gavenda
- The Cancer Research Center, HealthPartners/Park Nicollet, Minneapolis, MN, USA
| | - Jordan Guggisberg
- The Cancer Research Center, HealthPartners/Park Nicollet, Minneapolis, MN, USA
| | | | | | - Tom Arneson
- Minnesota Department of Health, Office of Medical Cannabis, St. Paul, MN, USA
| | - Sara Richter
- Professional Data Analysts, Minneapolis, MN, USA
| | | | - Stephen Dahmer
- Family Medicine & Community Health At the Icahn School of Medicine At Mount Sinai, New York, NY, USA.,Vireo Health International, Minneapolis, MN, USA
| | | | - Arkadiusz Dudek
- The Cancer Research Center, HealthPartners/Park Nicollet, Minneapolis, MN, USA
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33
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Jugl S, Okpeku A, Costales B, Morris EJ, Alipour-Haris G, Hincapie-Castillo JM, Stetten NE, Sajdeya R, Keshwani S, Joseph V, Zhang Y, Shen Y, Adkins L, Winterstein AG, Goodin A. A Mapping Literature Review of Medical Cannabis Clinical Outcomes and Quality of Evidence in Approved Conditions in the USA from 2016 to 2019. Med Cannabis Cannabinoids 2021; 4:21-42. [PMID: 34676348 PMCID: PMC8525213 DOI: 10.1159/000515069] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 02/03/2021] [Indexed: 12/15/2022] Open
Abstract
In 2017, a National Academies of Sciences, Engineering, and Medicine (NASEM) report comprehensively evaluated the body of evidence regarding cannabis health effects through the year 2016. The objectives of this study are to identify and map the most recently (2016-2019) published literature across approved conditions for medical cannabis and to evaluate the quality of identified recent systematic reviews, published following the NASEM report. Following the literature search from 5 databases and consultation with experts, 11 conditions were identified for evidence compilation and evaluation: amyotrophic lateral sclerosis, autism, cancer, chronic noncancer pain, Crohn's disease, epilepsy, glaucoma, human immunodeficiency virus/AIDS, multiple sclerosis (MS), Parkinson's disease, and posttraumatic stress disorder. A total of 198 studies were included after screening for condition-specific relevance and after imposing the following exclusion criteria: preclinical focus, non-English language, abstracts only, editorials/commentary, case studies/series, and non-U.S. study setting. Data extracted from studies included: study design type, outcome definition, intervention definition, sample size, study setting, and reported effect size. Few completed randomized controlled trials (RCTs) were identified. Studies classified as systematic reviews were graded using the Assessing the Methodological Quality of Systematic Reviews-2 tool to evaluate the quality of evidence. Few high-quality systematic reviews were available for most conditions, with the exceptions of MS (9 of 9 graded moderate/high quality; evidence for 2/9 indicating cannabis improved outcomes; evidence for 7/9 indicating cannabis inconclusive), epilepsy (3 of 4 graded moderate/high quality; 3 indicating cannabis improved outcomes; 1 indicating cannabis inconclusive), and chronic noncancer pain (12 of 13 graded moderate/high quality; evidence for 7/13 indicating cannabis improved outcomes; evidence from 6/7 indicating cannabis inconclusive). Among RCTs, we identified few studies of substantial rigor and quality to contribute to the evidence base. However, there are some conditions for which significant evidence suggests that select dosage forms and routes of administration likely have favorable risk-benefit ratios (i.e., epilepsy and chronic noncancer pain). The body of evidence for medical cannabis requires more rigorous evaluation before consideration as a treatment option for many conditions, and evidence necessary to inform policy and treatment guidelines is currently insufficient for many conditions.
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Affiliation(s)
- Sebastian Jugl
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Aimalohi Okpeku
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Brianna Costales
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Earl J. Morris
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Golnoosh Alipour-Haris
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Juan M. Hincapie-Castillo
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | | | - Ruba Sajdeya
- Epidemiology, University of Florida, Gainesville, Florida, USA
| | - Shailina Keshwani
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Verlin Joseph
- Epidemiology, University of Florida, Gainesville, Florida, USA
| | - Yahan Zhang
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Yun Shen
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Lauren Adkins
- Health Sciences Center Libraries, University of Florida, Gainesville, Florida, USA
| | - Almut G. Winterstein
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
| | - Amie Goodin
- Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA
- Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA
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34
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Bruce D, Foster E, Shattell M. Perceived Efficacy of Medical Cannabis in the Treatment of Co-Occurring Health-Related Quality of Life Symptoms. Behav Med 2021; 47:170-174. [PMID: 31693457 DOI: 10.1080/08964289.2019.1683712] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
For persons living with chronic conditions, health-related quality of life (HRQoL) symptoms, such as pain, anxiety, depression, and insomnia, often interact and mutually reinforce one another. There is evidence that medical cannabis (MC) may be efficacious in ameliorating such symptoms and improving HRQoL. As many of these HRQoL symptoms may mutually reinforce one another, we conducted an exploratory study to investigate how MC users perceive the efficacy of MC in addressing co-occurring HRQoL symptoms. We conducted a cross-sectional online survey of persons with a state medical marijuana card in Illinois (N = 367) recruited from licensed MC dispensaries across the state. We conducted tests of ANOVA to measure how perceived MC efficacy for each HRQoL symptom varied by total number of treated symptoms reported by participants. Pain was the most frequently reported HRQoL treated by MC, followed by anxiety, insomnia, and depression. A large majority of our sample (75%) reported treating two or more HRQoL symptoms. In general, perceived efficacy of MC in relieving each HRQoL symptom category increased with the number of co-occurring symptoms also treated with MC. Perceived efficacy of MC in relieving pain, anxiety, and depression varied significantly by number of total symptoms experienced. This exploratory study contributes to our understanding of how persons living with chronic conditions perceive the efficacy of MC in treating co-occurring HRQoL symptoms. Our results suggest that co-occurring pain, anxiety, and depression may be particularly amenable to treatment with MC.
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Affiliation(s)
| | | | - Mona Shattell
- Associate Dean for Faculty Development, Johns Hopkins School of Nursing
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35
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Dell DD, Stein DP. Exploring the Use of Medical Marijuana for Supportive Care of Oncology Patients. J Adv Pract Oncol 2021; 12:188-201. [PMID: 34109050 PMCID: PMC8017802 DOI: 10.6004/jadpro.2021.12.2.6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Medical marijuana, also known as cannabis, is being sought by patients and survivors to alleviate common symptoms of cancer and its treatments that affect their quality of life. The National Academy of Sciences (2017) reports conclusive or substantial evidence that cannabis is successful in treating chronic cancer pain and chemotherapy-induced nausea and vomiting, moderate evidence that cannabinoids are beneficial for sleep disorders that accompany chronic illnesses, and limited evidence supporting use for appetite stimulation and anxiety. However, due to the fact that cannabis is classified as a Schedule I controlled substance, there is an absence of rigorous, scientific evidence to guide health-care professionals. In addition, the Schedule I designation makes it illegal for health-care professionals in the United States to prescribe, administer, or directly distribute these drugs. Legislation has outpaced research in this area. Therefore, the National Council of State Boards of Nursing (NCSBN) appointed a medical marijuana guideline committee to create guidelines for the nursing care of patients using medical marijuana, marijuana education in nursing programs, and guidelines for advanced practice registered nurses (APRNs) certifying a patient for the use of medical marijuana (The NCSBN Medical Marijuana Guidelines Committee, 2018). Six states/districts authorize APRNs to recommend the use of medical marijuana to patients with qualifying conditions (Kaplan, 2015). As of March 2021, 35 states plus the District of Columbia have authorized the use of medical marijuana (DISA Global Solutions, 2021). Therefore, APRNs will be caring for these patients and need to know the medical, pharmacological, and legal issues surrounding medical cannabis use.
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Affiliation(s)
| | - Daniel P Stein
- Florida State University College of Medicine, Tallahassee, Florida
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36
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Xu W, Gilmer DO, Starkweather A, Kim K. Associations among marijuana use, health-related quality of life, exercise, depression and sleep in cancer survivors. J Adv Nurs 2021; 77:2386-2397. [PMID: 33599000 DOI: 10.1111/jan.14780] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 01/04/2021] [Accepted: 01/27/2021] [Indexed: 11/29/2022]
Abstract
AIMS To assess associations among cannabis use, health-related quality of life, exercise, depression and sleep among a nationally representative sample of US adults living with cancer. DESIGN A cross-sectional correlational study. METHODS We used survey data from the 2016-2018 Behavioral Risk Factor Surveillance System. Analyses were considered for sample weights and the complex designs. Logistic regression was performed to assess associations among cannabis use (0, 1-19, vs. 20-30 [frequent] days), health-related quality of life (0-13 vs. ≥14 mentally or physically unhealthy days in the past 30 days; 0-13 vs. ≥14 functionally limited days), exercise, depression, and sleep after accounting for covariates. Reason for cannabis use (medical vs. non-medical) was also assessed. RESULTS Frequent users had significantly more physically unhealthy days (adjusted odds ratio [OR]: 1.79, 95% CI: 1.28-2.51, p < .01) and reported ≥ 14 mentally unhealthy days (adjusted OR: 2.43, 95% CI: 1.78-3.32, p < .001) and depression (adjusted OR: 2.65, 95% CI: 1.97-3.57, p < .001) compared with non-users. A positive relationship between frequency of cannabis use and depression existed only among non-medical cannabis users. CONCLUSION Cancer survivors using cannabis frequently (20 days+ in the past month) had poorer mental health-related quality of life. The reason for cannabis use as well as frequency of use may be important considerations in predicting depression. IMPACT This is the first study that evaluates the associations among cannabis use, the purpose of cannabis use, HRQoL, exercise, depression and sleep in a nationally representative sample of US adults living with cancer. Frequent cannabis users are likely vulnerable to poorer mental health-related quality of life and depression, and non-medical cannabis use in frequent users was associated with depression. Given expanding medical cannabis legalization, these findings warrant further attention so that this information can be used by people living with cancer in decision-making for symptom self-management.
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Affiliation(s)
- Wanli Xu
- School of Nursing, University of Connecticut, Storrs, CT, USA.,Center for Advancement in Managing Pain, University of Connecticut, Storrs, CT, USA
| | - Declan O Gilmer
- Department of Psychological Sciences, University of Connecticut, Storrs, CT, USA
| | - Angela Starkweather
- School of Nursing, University of Connecticut, Storrs, CT, USA.,Center for Advancement in Managing Pain, University of Connecticut, Storrs, CT, USA
| | - Kyounghae Kim
- College of Nursing, Korea University, Seoul, South Korea.,Institute of Nursing Research, Korea University, Seoul, South Korea.,Transdisciplinary Major in Learning Health Systems, Korea University, Seoul, South Korea
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37
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Abstract
OBJECTIVE To review pharmacology, available dosage forms, efficacy, and safety of cannabis and cannabinoids in cancer patients. DATA SOURCES In PubMed (1965 to June 2020) the search was conducted using the search terms cannabidiol, cannabis, CBD, dronabinol, endocannabinoids, medical marijuana, nabiximols, nabilone, THC, and cancer. Abstracts from article bibliographies were reviewed. STUDY SELECTION AND DATA EXTRACTION Relevant English-language studies conducted in humans evaluating cannabis and cannabinoids for cancer treatment or related symptoms were considered. Reference lists in relevant articles, package inserts, guidance documents, and addditional articles evaluating cannabis and cannabinoids were identified. DATA SYNTHESIS Cannabis and cannabinoid effectiveness can be attributed to active components delta-9-tetrahydrocannabinol and cannabidiol. Multiple dosage forms exist, each with different properties contributing to efficacy and safety differences. No data supports use as anticancer agents, and mixed efficacy results have been reported when used in cancer patients with nausea, pain, and anorexia. Inclusion of medicinal and synthetic products, small sample sizes, varying patient populations, and different dosage forms, doses, and drug combinations. These products are well tolerated, and adverse effects depend on the main active component. RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE Healthcare professionals need to identify appropriateness, monitor, and document use of cannabis and cannabinoids similar to other drug therapies as well as educate the patients/ caregivers about potential benefits and risks. CONCLUSIONS Current evidence for use of medical cannabis and cannabinoids in cancer patients is weak. However, healthcare professionals are in an ideal role to monitor and educate patients using medical cannabis and cannabinoids.
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Affiliation(s)
| | - Lisa M Holle
- UConn School of Pharmacy, Storrs, CT, USA.,UConn Health Neag Cancer Center, Farmington, CT, USA
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38
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Zolotov Y, Eshet L, Morag O. Preliminary assessment of medical cannabis consumption by cancer survivors. Complement Ther Med 2020; 56:102592. [PMID: 33197667 DOI: 10.1016/j.ctim.2020.102592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/29/2020] [Accepted: 09/30/2020] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES To assess the motivation of cancer survivors to consume medical cannabis and to assess the patterns of use, perceived efficacy, as well as side and adverse effects. METHODS Cross-sectional survey among 190 Israeli cancer survivors who were licensed to use medical cannabis in a single institution. In addition to demographic information, the questionnaire examined patterns of use (including dosage, type of cannabis and way of administration), motivation for medical cannabis consumption, perceived efficacy, adverse and side effects, motivation for ceasing cannabis consumption, and tobacco smoking. RESULTS The mean monthly dosage of cannabis consumed was 42.4 grams; 95.8% of respondents reported not consuming cannabis regularly before being diagnosed with cancer; the most common way of administration was smoking, and most of the participants reported taking cannabis throughout the day. The most common symptoms for which participants took medical cannabis were pain (n = 169, 88.9%), sleeping disorder (n = 144, 75.8%) and anxiety (n = 79, 41.6%). Twenty patients (10.5%) reported on mild side (or adverse) effects. CONCLUSIONS This study indicates that cancer survivors may indeed consume cannabis for symptom relief, and not merely for recreational purposes. Although our findings point to perceived safety and efficacy of medical cannabis for cancer survivors, more research is needed to study the adequate role that cannabis may have for treating symptoms associated with cancer survivorship.
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Affiliation(s)
- Yuval Zolotov
- Regional Drug and Alcohol Research Center, Ben Gurion University of the Negev, RADAR Center, Building #17, 84105 Beer Sheva Israel.
| | - Lia Eshet
- Supportive Care Unit, The Cancer Center at Sheba Medical Center, Israel
| | - Ofir Morag
- Supportive Care Unit, The Cancer Center at Sheba Medical Center, Israel; Cancer Pain Unit, The Cancer Center at Sheba Medical Center, Israel
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39
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Macari DM, Gbadamosi B, Jaiyesimi I, Gaikazian S. Medical Cannabis in Cancer Patients: A Survey of a Community Hematology Oncology Population. Am J Clin Oncol 2020; 43:636-639. [PMID: 32889833 DOI: 10.1097/coc.0000000000000718] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Cancer patients are using medical cannabis (MC) to address symptoms; however, little data exist to guide clinicians when counseling patients. We seek to define the patterns of MC use among cancer patients, as well as efficacy and safety of MC. MATERIALS AND METHODS Cancer patients attending oncology office visits at Beaumont Hospital, Michigan from July to December 2018 were anonymously surveyed. The survey included data regarding demographics, diagnosis, treatment, symptom burden, and MC use. Patients who reported MC use since their cancer diagnosis completed a section on patterns of use, efficacy, and safety. RESULTS The response rate was 188 of 327 (57.5%). MC use was reported by 46 of 188 (24.5%). A median composite baseline symptom score ranging from 8 (best) to 32 (worst) was higher in patients using MC versus nonusers; 17.5 versus 14.4 (P<0.001). Pain was the symptom with the highest frequency of improvement 34/42 (81%), followed by appetite 34/44 (77.3%), and anxiety 32/44 (73%). MC improved the ability to tolerate treatment in 24/44 (54.5%). Cloudy thinking is the symptom that worsened the most 7/42 (16.7%), with decreased energy being experienced by 4/41 (9.8%) of the users. CONCLUSIONS MC was utilized by a significant portion of cancer patients in this sample, across age, diagnosis, stage, and treatment. Patients with a higher severity of baseline symptoms were more likely to use MC and report a favorable efficacy profile of MC. Minimal toxicity was reported in this cohort. Prospective studies are needed to define the efficacy and safety of MC.
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Affiliation(s)
- David M Macari
- Department of Hematology Oncology, Beaumont Health, Royal Oak, MI
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40
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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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41
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Karim S, Cheung WY, Bu J, Jess E, Kerba M. Medical Cannabis Authorization in Patients With Cancer in the Prelegalization Era: A Population-Based Study. J Pain Symptom Manage 2020; 59:1223-1231. [PMID: 31887404 DOI: 10.1016/j.jpainsymman.2019.12.367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 11/16/2022]
Abstract
CONTEXT Studies show that patients with cancer use cannabis to manage symptoms and side effects. Medical cannabis is regulated by Health Canada; authorization patterns among cancer patients have not been well described. OBJECTIVES The aim of the study is to describe medical cannabis authorization in Alberta, Canada. METHODS The Alberta Cancer Registry was used to identify all patients aged 18 years and older diagnosed with invasive cancer from April 1, 2014 to December 31, 2016. These cases were linked to records from the College of Physicians and Surgeons of Alberta. Univariate and multivariate logistic regression models were constructed to determine factors associated with medical cannabis authorization. RESULTS We identified 41,889 patients with cancer between April 1, 2014 and December 31, 2016. Of these patients, 1070 (2.6%) had a medical cannabis authorization. Fifty-one percent (541 of 1070) were authorized to use medical cannabis within one year of diagnosis, 52% (248 of 549) within one year of the start of systemic therapy, and 41% (128 of 312) within one year of the start of radiation therapy. Patients aged 18-29 (odds ratio [OR] 12.4; 95% CI 7.8-19.8), patients living in the Calgary zone (OR 1.8; 95% CI 1.6-2.1), those with advanced disease (Stage III/IV: OR 1.2; 95% CI 1.0-1.4), and those receiving systemic therapy (OR 2.0; 95% CI 1.7-2.4) were more likely to have an authorization for medical cannabis (P < 0.001). CONCLUSION A small proportion of patients with cancer were authorized to use medical cannabis between 2014 and 2016 in Alberta. Authorization was associated with a cancer diagnosis and receiving treatment. Younger patients, those with advanced stage disease, and those undergoing systemic treatment were predictors of medical cannabis authorization.
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Affiliation(s)
- Safiya Karim
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada.
| | - Winson Y Cheung
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
| | - Jingyu Bu
- Surveillance & Reporting, Cancer Research and Analytics, CancerControl Alberta, Alberta Health Services, Alberta, Canada
| | - Ed Jess
- College of Physicians and Surgeons of Alberta, Edmonton, Alberta, Canada
| | - Marc Kerba
- Department of Oncology, University of Calgary, Calgary, Alberta, Canada
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42
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Graham M, Lucas CJ, Schneider J, Martin JH, Hall W. Translational hurdles with cannabis medicines. Pharmacoepidemiol Drug Saf 2020; 29:1325-1330. [PMID: 32281186 DOI: 10.1002/pds.4999] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/18/2020] [Accepted: 03/21/2020] [Indexed: 01/18/2023]
Abstract
PURPOSE Internationally, there has been widespread medical use of cannabis medicines before rigorous evaluations in randomised controlled trials (RCTs). Some advocates of medicinal use of cannabis argue that real-world evidence (RWE) can be a substitute for or at least supplement evidence from RCTs. We explore the utility, limitations and impact of RWE in the translation of cannabis medicines research into clinical practice using the established literature. METHODS A literature search was performed via Embase and Medline using a diverse range of cannabinoid and RWE search terms. The review provides a snapshot of cannabis medicine RWE initiatives from around the world. RESULTS Diverse and novel sources of real-world data and RWE include international cannabis registries, surveys, post-marketing data collection and use of electronic or digital health records. The strengths and limitations of using RWE in translational research are highlighted, along with the identification of barriers to RCTs involving cannabis medicines. CONCLUSIONS RWE promises to play a significant role in the evaluation of cannabis medicines around the world. When used appropriately RWE may complement RCT data by providing valuable insights into cannabis medicine safety and effectiveness. TAKE HOME MESSAGES It is important that real-world evidence (RWE) is used to complement rather than replace randomised controlled trial (RCT) evidence on cannabis medicines. Technological advances have created the opportunity to explore diverse and novel sources of cannabis medicine RWE. Although RWE may be more reflective of real-world clinical practice, it cannot provide conclusive evidence of the safety and efficacy of cannabis medicines. While acknowledging its limitations, RWE may nonetheless provide some guidance on safety and adverse events of cannabis medicines. RWE has already had a significant impact on the regulation of cannabis medicines.
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Affiliation(s)
- Myfanwy Graham
- Centre for Drug Repurposing & Medicines Research, School of Medicine and Public Health, The University of Newcastle, New South Wales, Australia.,NSW Cannabis Medicines Advisory Service, Newcastle, New South Wales, Australia.,Australian Centre for Cannabinoid Clinical and Research Excellence, Newcastle, New South Wales, Australia
| | - Catherine J Lucas
- Centre for Drug Repurposing & Medicines Research, School of Medicine and Public Health, The University of Newcastle, New South Wales, Australia.,NSW Cannabis Medicines Advisory Service, Newcastle, New South Wales, Australia.,Australian Centre for Cannabinoid Clinical and Research Excellence, Newcastle, New South Wales, Australia.,Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Jennifer Schneider
- Centre for Drug Repurposing & Medicines Research, School of Medicine and Public Health, The University of Newcastle, New South Wales, Australia.,Australian Centre for Cannabinoid Clinical and Research Excellence, Newcastle, New South Wales, Australia.,Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Jennifer H Martin
- Centre for Drug Repurposing & Medicines Research, School of Medicine and Public Health, The University of Newcastle, New South Wales, Australia.,Australian Centre for Cannabinoid Clinical and Research Excellence, Newcastle, New South Wales, Australia.,Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Wayne Hall
- Australian Centre for Cannabinoid Clinical and Research Excellence, Newcastle, New South Wales, Australia.,Centre for Youth Substance Abuse Research, The University of Queensland, Brisbane, Queensland, Australia.,National Addiction Centre, The University of Queensland, Brisbane, Queensland, Australia
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Nugent SM, Meghani SH, Rogal SS, Merlin JS. Medical cannabis use among individuals with cancer: An unresolved and timely issue. Cancer 2020; 126:1832-1836. [PMID: 32012232 DOI: 10.1002/cncr.32732] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Shannon M Nugent
- Department of Psychiatry, Oregon Health and Science University, Portland, Oregon.,Center to Improve Veteran Involvement in Care, VA Portland Health Care System, Portland, Oregon
| | - Salimah H Meghani
- Department of Biobehavioral Health Sciences, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Shari S Rogal
- Center for Health Equity Research and Promotion, VA Pittsburgh Health Care System, Pittsburgh, Pennsylvania
| | - Jessica S Merlin
- Section of Palliative Care and Medical Ethics, Division of General Internal Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.,Center for Research on Health Care, Division of General Internal Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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