1
|
Hui J, Reddon H, Fairbairn N, Choi J, Milloy MJ, Socias ME. Prevalence and Correlates of Heavy Alcohol use among People Living with HIV who use Unregulated Drugs in Vancouver, Canada. AIDS Behav 2024; 28:2427-2437. [PMID: 38662276 DOI: 10.1007/s10461-024-04341-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] [Accepted: 04/04/2024] [Indexed: 04/26/2024]
Abstract
Among people living with HIV (PLWH), heavy alcohol use is associated with many negative health consequences. However, the impacts of heavy alcohol use are not well described for PLWH who use drugs. Thus, we investigated the prevalence and correlates of heavy alcohol use among a cohort of people who use drugs (PWUD) living with HIV in Vancouver, Canada. We accessed data from an ongoing community-recruited prospective cohort of PLWH who use drugs with linked comprehensive HIV clinical monitoring data. We used generalized linear mixed-effects modeling to identify factors longitudinally associated with periods of heavy alcohol use between December 2005 and December 2019. Of the 896 participants included, 291 (32.5%) reported at least one period with heavy alcohol use. Periods of recent incarceration (Adjusted Odds Ratio [AOR] = 1.48, 95% Confidence Interval [CI]: 1.01-2.17), encounters with police (AOR = 1.87, 95% CI: 1.37-2.56), and older age (AOR = 1.05, 95% CI: 1.02-1.07) were positively associated with heavy alcohol use. Engagement in drug or alcohol treatment (AOR = 0.54, 95% CI: 0.42-0.70) and male gender (AOR = 0.46; 95% CI: 0.27-0.78) were negatively associated with heavy alcohol use. We observed that heavy alcohol use was clearly linked to involvement with the criminal justice system. These findings, together with the protective effects of substance use treatment, suggest the need to expand access for drug and alcohol treatment programs overall, and in particular through the criminal justice system to reduce alcohol-related harms among PLWH who use drugs.
Collapse
Affiliation(s)
- Jeremy Hui
- Department of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
| | - Hudson Reddon
- Department of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
- British Columbia Centre on Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada.
| | - Nadia Fairbairn
- Department of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
- British Columbia Centre on Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
| | - JinCheol Choi
- Department of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
- British Columbia Centre on Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
| | - M-J Milloy
- Department of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
- British Columbia Centre on Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
| | - Maria Eugenia Socias
- Department of Medicine, University of British Columbia, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
- British Columbia Centre on Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
| |
Collapse
|
2
|
Bryce TN, Tsai CY, Delgado AD, Mulroy SJ, Welch A, Cardenas DD, Taylor HB, Felix ER. Treatments perceived to be helpful for neuropathic pain after traumatic spinal cord injury: A multicenter cross-sectional survey study. J Spinal Cord Med 2024; 47:440-449. [PMID: 35993799 PMCID: PMC11044759 DOI: 10.1080/10790268.2022.2108665] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Abstract
DESIGN Cross-sectional survey. OBJECTIVE To evaluate the perceived helpfulness of pharmacological and non-pharmacological interventions and their combinations for neuropathic pain (NeuP) and subcategories of NeuP after spinal cord injury (SCI). SETTING Six Spinal Cord Injury Model System Centers. METHODS Three hundred ninety one individuals at least one year post traumatic SCI were enrolled. A telephone survey was conducted to determine the pharmacologic and non-pharmacologic treatments used in the last 12 months for each participant's three worst pains, whether these treatments were "helpful", and if currently used, each treatments' effectiveness. RESULTS Two hundred twenty participants (56%) reported 354 distinct NeuPs. Pharmacological treatments rated helpful for NeuP were non-tramadol opioids (opioids were helpful for 86% of opioid treated NeuPs), cannabinoids (83%), and anti-epileptics (79%). Non-pharmacological treatments rated helpful for NeuP were massage (76%), body position adjustment (74%), and relaxation therapy (70%). Those who used both opioids and exercise reported greater NeuP treatment helpfulness compared to participants using opioids without exercise (P = 0.03). CONCLUSIONS Opioids, cannabinoids, and massage were reported more commonly as helpful than treatments recommended as first-line therapies by current clinical practice guidelines (CPGs) for NeuP after SCI (antiepileptics and antidepressants). Individuals with SCI likely value the modulating effects of pharmacological and non-pharmacological treatments on the affective components of pain in addition to the sensory components of pain when appraising treatment helpfulness.
Collapse
Affiliation(s)
- Thomas N. Bryce
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Chung-Ying Tsai
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Andrew D. Delgado
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Sara J. Mulroy
- Pathokinesiology Laboratory, Rancho Los Amigo National Rehabilitation Center, Downey, California, USA
| | | | - Diana D. Cardenas
- Department of Physical Medicine and Rehabilitation, University of Miami, Miami, Florida, USA
| | - Heather B. Taylor
- Department of Physical Medicine & Rehabilitation, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Elizabeth R. Felix
- Department of Physical Medicine and Rehabilitation, University of Miami, Miami, Florida, USA
| |
Collapse
|
3
|
Bakouni H, Sharafi H, Drouin S, Fortin R, Marsan S, Brissette S, Socias ME, Le Foll B, Lim R, Jutras-Aswad D. Associations Between Buprenorphine\Naloxone and Methadone Treatment and non-Opioid Substance Use in Prescription-Type Opioid Use Disorder: Secondary Analyses From the OPTIMA Study: Associations entre le traitement avec la buprénorphine/naloxone et avec la méthadone et l'utilisation de substances non opioïdes dans le trouble lié à l'usage d'opioïdes de type sur ordonnance : analyses secondaires de l'étude OPTIMA. CANADIAN JOURNAL OF PSYCHIATRY. REVUE CANADIENNE DE PSYCHIATRIE 2024; 69:252-263. [PMID: 37899716 PMCID: PMC10924583 DOI: 10.1177/07067437231210796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
OBJECTIVES There is limited evidence on how opioid agonist treatment (OAT) may affect psychoactive non-opioid substance use in prescription-type opioid use disorder (POUD) and whether this effect might explain OAT outcomes. We aimed to assess the effect of methadone on non-opioid substance use compared to buprenorphine/naloxone (BUP/NX), to explore whether non-opioid substance use is associated with opioid use and retention in treatment, and to test non-opioid use as a moderator of associations between methadone with retention in OAT and opioid use compared to BUP/NX. METHODS This is a secondary analysis of data from the OPTIMA trial, an open-label, pragmatic, parallel, two-arm, pan-Canadian, multicentre, randomized-controlled trial to compare standard methadone model of care and flexible take-home dosing BUP/NX for POUD treatment. We studied the effect of methadone and BUP/NX on non-opioid substance use evaluated by urine drug screen (UDS) and by classes of non-opioid substances (i.e., tetrahydrocannabinol [THC], benzodiazepines, stimulants) (weeks 2-24) using adjusted generalized estimation equation (GEE). We studied the association between non-opioid substance-positive UDS and opioid-positive UDS and retention in treatment, using adjusted GEE and logistic regressions. RESULTS Overall, methadone was not associated with non-opioid substance-positive UDS compared to BUP/NX (OR: 0.78; 95%CI, 0.41 to 1.48). When non-opioid substances were studied separately, methadone was associated with lower odds of benzodiazepine-positive UDS (OR: 0.63; 95% CI: 0.40 to 0.98) and THC-positive UDS (OR: 0.47; 95% CI: 0.28 to 0.77), but not with different odds of stimulant-positive UDS (OR: 1.29; 95% CI: 0.78 to 2.16) compared to BUP/NX. Substance-positive UDS, overall and separate classes, were not associated with opioid-positive UDS or retention in treatment. CONCLUSION Methadone did not show a significant effect on overall non-opioid substance use in POUD compared to BUP/NX treatment but was associated with lower odds of benzodiazepine and THC use in particular. Non-opioid substance use did not predict OAT outcomes. Further research is needed to ascertain whether specific patterns of polysubstance use (quantity and frequency) may affect treatment outcomes.
Collapse
Affiliation(s)
- Hamzah Bakouni
- Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Department of Psychiatry and Addictology, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Heidar Sharafi
- Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Department of Psychiatry and Addictology, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Sarah Drouin
- Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Department of Psychiatry and Addictology, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Raphaelle Fortin
- Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Department of Psychiatry and Addictology, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Stéphanie Marsan
- Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Department of Family and Emergency Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Suzanne Brissette
- Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Department of Family and Emergency Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Maria Eugenia Socias
- British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Bernard Le Foll
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Family and Community Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Translational Addiction Research Laboratory, Campbell Family Mental Health Research Institute, Center for Addiction and Mental Health, Toronto, Ontario, Canada
- Waypoint Research Institute, Waypoint Centre for Mental Health Care, Penetanguishene, Ontario, Canada
| | - Ron Lim
- Department of Family Medicine and Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Didier Jutras-Aswad
- Research Centre, Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
- Department of Psychiatry and Addictology, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| |
Collapse
|
4
|
Kang H, Clary K, Zhao Z, Quintero Silva L, Bobitt J. Characteristics of Cannabis and Opioid Users Among Older U.S. Veterans and Their Health Outcomes: A Longitudinal Perspective. J Psychoactive Drugs 2024; 56:157-167. [PMID: 36919533 DOI: 10.1080/02791072.2023.2186286] [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: 06/01/2022] [Accepted: 01/30/2023] [Indexed: 03/16/2023]
Abstract
Medical cannabis use among U.S. Veterans has continued to rise. However, data on cannabis use by older Veterans is generally less available. This study aims to understand the characteristics of older Veterans who enrolled in the Medical Cannabis Patient Program in Illinois and analyze their health outcomes and co-use of cannabis and opioids using longitudinal survey data. Overall, participants reported positive outcomes for pain, sleep, and emotional problems because of cannabis use in two survey periods. Approximately, 62% and 85% respondents reported no change in memory and falls, respectively, with only 3% and 1% reporting a negative outcome for the conditions in both surveys. About 20.4% of those who indicated cannabis use only in the initial survey started to co-use opioids in the follow-up survey, while 44.1% of those who indicated the use of both substances in the initial survey reported no longer using opioids in the follow-up survey. However, these changes were not statistically significant (α = 0.05 ) . The logistic regression showed that both clinical and contextual factors affected co-use. In conclusion, older U.S. Veterans may be using cannabis to alleviate their pain and other chronic conditions. More research is needed to understand the effect of cannabis use on reducing or substituting opioids.
Collapse
Affiliation(s)
- Hyojung Kang
- College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Kelly Clary
- School of Social Work, Texas State University, San Marcos, TX, USA
| | - Ziang Zhao
- Department of Statistics, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Laura Quintero Silva
- College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Julie Bobitt
- College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| |
Collapse
|
5
|
Wilson J, Mills KL, Sunderland M, Freeman TP, Teesson M, Haber PS, Marel C. The Long-Term Relationship Between Cannabis and Heroin Use: An 18- to 20-year Follow-Up of the Australian Treatment Outcome Study (ATOS). Am J Psychiatry 2024; 181:135-143. [PMID: 38018142 DOI: 10.1176/appi.ajp.20230088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
OBJECTIVE Cannabis use is common among individuals with opioid use disorder, but it remains unclear whether cannabis use is associated with an increase or a reduction in illicit opioid use. To overcome limitations identified in previous longitudinal studies with limited follow-ups, the authors examined a within-person reciprocal relationship between cannabis and heroin use at several follow-ups over 18 to 20 years. METHODS The Australian Treatment Outcome Study (ATOS) recruited 615 people with heroin dependence in 2001 and 2002 and reinterviewed them at 3, 12, 24, and 36 months as well as 11 and 18-20 years after baseline. Heroin and cannabis use were assessed at each time point using the Opiate Treatment Index. A random-intercept cross-lagged panel model analysis was conducted to identify within-person relationships between cannabis use and heroin use at subsequent follow-ups. RESULTS After accounting for a range of demographic variables, other substance use, and mental and physical health measures, an increase in cannabis use 24 months after baseline was significantly associated with an increase in heroin use at 36 months (estimate=0.21, SE=0.10). Additionally, an increase in heroin use at 3 months and 24 months was significantly associated with a decrease in cannabis use at 12 months (estimate=-0.27, SE=0.09) and 36 months (estimate=-0.22, SE=0.08). All other cross-lagged associations were not significant. CONCLUSIONS Although there was some evidence of a significant relationship between cannabis and heroin use at earlier follow-ups, this was sparse and inconsistent across time points. Overall, there was insufficient evidence to suggest a unidirectional or bidirectional relationship between the use of these substances.
Collapse
Affiliation(s)
- Jack Wilson
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, Australia (Wilson, Mills, Sunderland, Teesson, Marel); Addiction and Mental Health Group, University of Bath, Bath, U.K. (Freeman); Sydney Medical School, University of Sydney, Sydney, Australia (Haber); Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia (Haber)
| | - Katherine L Mills
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, Australia (Wilson, Mills, Sunderland, Teesson, Marel); Addiction and Mental Health Group, University of Bath, Bath, U.K. (Freeman); Sydney Medical School, University of Sydney, Sydney, Australia (Haber); Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia (Haber)
| | - Matthew Sunderland
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, Australia (Wilson, Mills, Sunderland, Teesson, Marel); Addiction and Mental Health Group, University of Bath, Bath, U.K. (Freeman); Sydney Medical School, University of Sydney, Sydney, Australia (Haber); Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia (Haber)
| | - Tom P Freeman
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, Australia (Wilson, Mills, Sunderland, Teesson, Marel); Addiction and Mental Health Group, University of Bath, Bath, U.K. (Freeman); Sydney Medical School, University of Sydney, Sydney, Australia (Haber); Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia (Haber)
| | - Maree Teesson
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, Australia (Wilson, Mills, Sunderland, Teesson, Marel); Addiction and Mental Health Group, University of Bath, Bath, U.K. (Freeman); Sydney Medical School, University of Sydney, Sydney, Australia (Haber); Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia (Haber)
| | - Paul S Haber
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, Australia (Wilson, Mills, Sunderland, Teesson, Marel); Addiction and Mental Health Group, University of Bath, Bath, U.K. (Freeman); Sydney Medical School, University of Sydney, Sydney, Australia (Haber); Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia (Haber)
| | - Christina Marel
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, Australia (Wilson, Mills, Sunderland, Teesson, Marel); Addiction and Mental Health Group, University of Bath, Bath, U.K. (Freeman); Sydney Medical School, University of Sydney, Sydney, Australia (Haber); Drug Health Services, Royal Prince Alfred Hospital, Camperdown, Australia (Haber)
| |
Collapse
|
6
|
Affiliation(s)
- Mark Olfson
- Department of Psychiatry, College of Physicians and Surgeons, and Department of Epidemiology, Mailman School of Public Health, Columbia University, New York; New York State Psychiatric Institute, New York
| |
Collapse
|
7
|
Fehr F, Lo LA, Nelson C, Nanson K, Diehl L, Nielson K, Reddon H, Walsh Z. Stigma-related barriers to medical cannabis as harm reduction for substance use disorder: Obstacles and opportunities for improvement. Int J Ment Health Nurs 2024; 33:195-201. [PMID: 37767954 DOI: 10.1111/inm.13231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/01/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023]
Abstract
Emerging evidence on substituting cannabis for more harmful drugs has led to cannabis becoming a novel harm-reduction strategy for combating the current drug poisoning crisis. However, the authorization of medical cannabis as part of a harm-reduction approach and recovery strategy has significant implementation barriers rooted in longstanding stigma towards cannabis. Through a multi-discipline collaboration of Canadian clinicians and academic researchers, we highlighted stigma barriers and opportunities to address these barriers to elicit improved delivery of medical cannabis as a harm-reduction therapy within existing therapeutic frameworks. Evidence from existing literature and real-world experiences converged on three key themes related to stigma barriers: (1) Lack of medical cannabis education within the healthcare community, (2) lack of consensus and coordination among harm-reduction services and (3) access to medical cannabis. We highlight potential solutions to these issues, including improved healthcare education, better coordination between care teams and suggestions for improving access. Through this discussion, we hope to contribute to reducing the stigma around using medical cannabis as a harm-reduction strategy for individuals with a substance use disorder and consider new perspectives in policy development surrounding recovery services.
Collapse
Affiliation(s)
- Florriann Fehr
- School of Nursing, Thompson Rivers University, Kamloops, British Columbia, Canada
| | - Lindsay A Lo
- Department of Public Health Sciences, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Chris Nelson
- Department of Psychology, University of British Columbia, Kelowna, British Columbia, Canada
| | - Kate Nanson
- School of Nursing, Thompson Rivers University, Kamloops, British Columbia, Canada
| | - Lauren Diehl
- School of Nursing, Thompson Rivers University, Kamloops, British Columbia, Canada
| | - Karl Nielson
- School of Nursing, Thompson Rivers University, Kamloops, British Columbia, Canada
| | - Hudson Reddon
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada
| | - Zach Walsh
- Department of Psychology, University of British Columbia, Kelowna, British Columbia, Canada
| |
Collapse
|
8
|
Ly S, Shannon K, Braschel M, Zhou H, Krüsi A, Deering K. Prevalence, correlates, and quality-of-life outcomes of major or persistent pain among women living with HIV in Metro Vancouver, Canada. Harm Reduct J 2024; 21:10. [PMID: 38218886 PMCID: PMC10788033 DOI: 10.1186/s12954-023-00859-x] [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: 05/03/2023] [Accepted: 08/23/2023] [Indexed: 01/15/2024] Open
Abstract
While women living with HIV (WLWH) are twice as likely to report severe or undertreated chronic pain compared to men, little is known about pain among WLWH. Our goal was to characterize the correlates of pain as well as its impact on quality-of-life outcomes among women enrolled in the Sexual Health and HIV/AIDS Women's Longitudinal Needs Assessment (SHAWNA), an open longitudinal study of WLWH accessing care in Metro Vancouver, Canada. We conducted logistic regression analyses to identify associations between self-reported major or persistent pain with sociostructural and psychosocial correlates and with quality-of-life outcomes. Data are presented as adjusted odds ratios (aORs) with 95% confidence intervals. Among 335 participants, 77.3% reported pain at ≥ 1 study visit, with 46.3% experiencing any undiagnosed pain and 53.1% managing pain with criminalized drugs. In multivariable analysis, age (aOR 1.04[1.03-1.06] per year increase), food and housing insecurity (aOR 1.54[1.08-2.19]), depression diagnosis (aOR 1.34[1.03-1.75]), suicidality (aOR 1.71[1.21-2.42]), and non-daily, non-injection opioid use (aOR 1.53[1.07-2.17]) were associated with higher odds of pain. Daily non-injection opioid use (aOR 0.46[0.22-0.96]) and health services access (aOR 0.63[0.44-0.91]) were associated with lower odds of pain. In separate multivariable confounder models, pain was associated with reduced odds of good self-rated health (aOR 0.64[0.48-0.84] and increased odds of health interference with social activities (aOR 2.21[1.63-2.99]) and general function (aOR 3.24[2.54-4.13]). In conclusion, most WLWH in our study reported major or persistent pain. Pain was commonly undiagnosed and associated with lower quality of life. We identified structural and psychosocial factors associated with pain in WLWH, emphasizing the need for low-barrier, trauma-informed, and harm reduction-based interventions.
Collapse
Affiliation(s)
- Sophia Ly
- Division of Social Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, 1190 Hornby St, Vancouver, BC, V6Z 2K5, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Kate Shannon
- Division of Social Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, 1190 Hornby St, Vancouver, BC, V6Z 2K5, Canada
- Centre for Gender and Sexual Health Equity, Vancouver, Canada
| | - Melissa Braschel
- Division of Social Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, 1190 Hornby St, Vancouver, BC, V6Z 2K5, Canada
- Centre for Gender and Sexual Health Equity, Vancouver, Canada
| | - Haoxuan Zhou
- Division of Social Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, 1190 Hornby St, Vancouver, BC, V6Z 2K5, Canada
- Centre for Gender and Sexual Health Equity, Vancouver, Canada
| | - Andrea Krüsi
- Division of Social Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, 1190 Hornby St, Vancouver, BC, V6Z 2K5, Canada
- Centre for Gender and Sexual Health Equity, Vancouver, Canada
| | - Kathleen Deering
- Division of Social Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, 1190 Hornby St, Vancouver, BC, V6Z 2K5, Canada.
- Centre for Gender and Sexual Health Equity, Vancouver, Canada.
| |
Collapse
|
9
|
Bailey A, Harps M, Belcher C, Williams H, Amos C, Donovan B, Sedore G, Victoria S, Graham B, Goulet-Stock S, Cartwright J, Robinson J, Farrell-Low A, Willson M, Sutherland C, Stockwell T, Pauly B. Translating the lived experience of illicit drinkers into program guidance for cannabis substitution: Experiences from the Canadian Managed Alcohol Program Study. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2023; 122:104244. [PMID: 37950943 DOI: 10.1016/j.drugpo.2023.104244] [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: 06/07/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/13/2023]
Abstract
A small but growing body of research has suggested the potential for cannabis substitution to support Managed Alcohol Program (MAP) service users to reduce acute and chronic alcohol-related harms. In 2022, researchers from the Canadian Managed Alcohol Program Study (CMAPS) noted a dearth of accessible, alcohol-specific educational resources to support service users and program staff to implement cannabis substitution pilots at several MAP sites in Canada. In this essay, we draw on over 10-years of collaboration between CMAPS, and organizations of people with lived experience (the Eastside Illicit Drinkers Group for Education (EIDGE) and SOLID Victoria) to describe our experiences co-creating cannabis education resources where none existed to support MAP sites interested in beginning to provide cannabis to participants. The research team relied on the unique lived experiences and informal cannabis-related harm reduction strategies described by EIDGE and SOLID members to create cannabis education resources that were accurate and relevant to MAP sites. EIDGE was familiar with creating peer-oriented educational resources and convened meetings and focus groups to engage peers. CMAPS research team members created standard cannabis unit equivalencies to support program delivery, and clinical advisors ensured that the stated risks and benefits of cannabis substitution, as well as tapering guidance for withdrawal management, were safe and feasible. The collaboration ultimately produced tailored client-facing and provider-facing resources. Our experience demonstrates that the lived expertise of drinkers can play an integral role in creating alcohol harm reduction informational materials, specifically those related to cannabis substitution, when combined with data from rigorous, community-based programs of research like CMAPS. We close by listing additional considerations for cannabis substitution program design for MAP settings emerging from this process of collaboration between illicit drinkers, service providers, clinicians, and researchers for consideration by other programs.
Collapse
Affiliation(s)
- Aaron Bailey
- Vancouver Area Network of Drug Users, 380 E Hastings Street, Vancouver BC V6A 1P4, Canada.
| | - Myles Harps
- Vancouver Area Network of Drug Users, 380 E Hastings Street, Vancouver BC V6A 1P4, Canada
| | - Clint Belcher
- Vancouver Area Network of Drug Users, 380 E Hastings Street, Vancouver BC V6A 1P4, Canada
| | - Henry Williams
- Vancouver Area Network of Drug Users, 380 E Hastings Street, Vancouver BC V6A 1P4, Canada
| | - Cecil Amos
- Vancouver Area Network of Drug Users, 380 E Hastings Street, Vancouver BC V6A 1P4, Canada
| | - Brent Donovan
- SOLID Victoria, 1056 N Park Street, Victoria, BC V8T 1C6, Canada
| | - George Sedore
- Vancouver Area Network of Drug Users, 380 E Hastings Street, Vancouver BC V6A 1P4, Canada
| | - Solid Victoria
- SOLID Victoria, 1056 N Park Street, Victoria, BC V8T 1C6, Canada
| | - Brittany Graham
- Vancouver Area Network of Drug Users, 380 E Hastings Street, Vancouver BC V6A 1P4, Canada
| | - Sybil Goulet-Stock
- Department of Psychology, University of Victoria, 3800 Finnerty Rd, Cornett Building (COR), A236, Victoria, BC V8P 5C2, Canada
| | - Jenny Cartwright
- Canadian Institute for Substance Use Research, University of Victoria, 2300 McKenzie Ave, Victoria, BC V8N 5M8, Canada
| | - Jennifer Robinson
- Department of Anthropology, University of Victoria, 3800 Finnerty Rd, Cornett Building (COR), B228, Victoria, BC V8P 5C2, Canada
| | - Amanda Farrell-Low
- Canadian Institute for Substance Use Research, University of Victoria, 2300 McKenzie Ave, Victoria, BC V8N 5M8, Canada
| | - Mark Willson
- SOLID Victoria, 1056 N Park Street, Victoria, BC V8T 1C6, Canada
| | - Christy Sutherland
- PHS Community Services Society, 9 E Hastings St, Vancouver, BC V6A 1M9, Canada
| | - Tim Stockwell
- Department of Psychology, University of Victoria, 3800 Finnerty Rd, Cornett Building (COR), A236, Victoria, BC V8P 5C2, Canada
| | - Bernie Pauly
- Department of Nursing, University of Victoria, 3800 Finnerty Rd, HSD Building, A402A, Victoria BC V8P 5C2, Canada
| |
Collapse
|
10
|
Fernandes JAB, Filev R, Fidalgo TM. Cannabinoids for Substance Use Disorder Treatment: What Does the Current Evidence Say? Cannabis Cannabinoid Res 2023; 8:703-715. [PMID: 37262132 DOI: 10.1089/can.2023.0065] [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] [Indexed: 06/03/2023] Open
Abstract
Background: The prevalence of Substance Use Disorder (SUD) is increasing along with the need to develop approaches to reduce the harm associated with substance use, including investigating alternatives such as cannabinoids, which show promising results, although the current evidence is limited. This scoping review focuses on the limitations and potentials of cannabinoid-based treatments for SUDs. Methods: We examined between-subject randomized controlled trials (RCTs) investigating the use of CBD and THC as pharmacological treatment for SUDs in adults, with the procedures attending the expectations of the Preferred Reporting Items for Scoping reviews and Meta-Analyses (PRISMA) for Scoping Reviews guidelines and assessed risk of bias using the Cochrane Risk of Bias Assessment Tool 2. Results: Ten RCTs were included, with six demonstrating low risk of bias, and positive results were found for treating Cannabis Use Disorder, while contradictory results were found for Opioid Use Disorder, and inconclusive results for treating Cocaine Use Disorder. Conclusions: CBD and THC demonstrate potential for treating some SUDs, but evidence is limited. Robust RCTs with larger samples and longer follow-up periods are necessary to assess carefully developed outcomes for different SUD patients. New cannabinoid-based medications and scientific-based policies may advance SUD treatment. A comprehensive approach to treatment and careful methodological choices may benefit patients with SUD.
Collapse
Affiliation(s)
- João Ariel Bonar Fernandes
- Departamento de Psiquiatria, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Renato Filev
- Departamento de Psiquiatria, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Thiago M Fidalgo
- Departamento de Psiquiatria, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| |
Collapse
|
11
|
Gagnon M, Payne A, Walsh Z, Guta A, Strike C. "The Box Has Become an Indispensable Part of My Life": A Case Study of Victoria Cannabis Buyers Club and its Consumption Space. CONTEMPORARY DRUG PROBLEMS 2023; 50:426-450. [PMID: 37719986 PMCID: PMC10504615 DOI: 10.1177/00914509231183147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 06/02/2023] [Indexed: 09/19/2023]
Abstract
Community-based models of cannabis cultivation, distribution, and consumption-such as cannabis clubs-have been documented across Europe, North America, South America, and New Zealand since the 1990s. For the most part, these models have a history of operating outside existing legislation and regulations. Jurisdictions that have legalized cannabis have approached community-based models in opposite ways (eliminate vs. regulate). Canada legalizing cannabis has resulted in more stringent enforcement and concerted efforts to close these models despite documented health and social benefits. This paper presents a case study of the Victoria Cannabis Buyers Club (VCBC) and its consumption space-The Box. We conducted a survey of VCBC members to explore four domains: demographics, cannabis consumption, access to and use of The Box, and the impact of its temporary closure due to COVID-19. From the survey data (n = 104), descriptive statistics were generated and three conceptual avenues were identified. The majority of respondents were 40 years old and older and identified as White (European descent) cisgendered men and women. The majority reported an income of $40,000 or less and a housing status that prevented them from smoking. Close to 75% of our sample consumed cannabis multidaily for therapeutic purposes primarily, but also for a mix of recreation, social, spiritual, and traditional healing purposes. Smoking was the preferred mode of consumption. Respondents accessed The Box daily or weekly. Reasons and benefits for using The Box fell into three categories: public health, harm reduction, and wellness perspectives. Conceptually, we found that The Box acted as a therapeutic space and offered a much-needed consumption space for smokers. We also identified a need to unpack the concept of safety. Overall, the survey reinforces the need for an equity-informed approach to community-based models and cannabis consumption spaces in Canada.
Collapse
Affiliation(s)
- Marilou Gagnon
- School of Nursing, University of Victoria, Victoria, British Columbia, Canada
- Canadian Institute for Substance Use Research, University of Victoria, Victoria, British Columbia, Canada
| | - Alayna Payne
- Canadian Institute for Substance Use Research, University of Victoria, Victoria, British Columbia, Canada
| | - Zach Walsh
- Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Adrian Guta
- School of Social Work, University of Windsor, Windsor, Ontario, Canada
| | - Carol Strike
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
12
|
Buttorff C, Wang GS, Wilks A, Tung G, Kress A, Schwam D, Pacula RL. Impact of Recreational Cannabis Legalization on Opioid Prescribing and Opioid-Related Hospital Visits in Colorado: an Observational Study. J Gen Intern Med 2023; 38:2726-2733. [PMID: 37340250 PMCID: PMC10506996 DOI: 10.1007/s11606-023-08195-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 03/30/2023] [Indexed: 06/22/2023]
Abstract
BACKGROUND Cannabis may be a substitute for opioids but previous studies have found conflicting results when using data from more recent years. Most studies have examined the relationship using state-level data, missing important sub-state variation in cannabis access. OBJECTIVE To examine cannabis legalization on opioid use at the county level, using Colorado as a case study. Colorado allowed recreational cannabis stores in January 2014. Local communities could decide whether to allow dispensaries, creating variation in the level of exposure to cannabis outlets. DESIGN Observational, quasi-experimental design exploiting county-level variation in allowance of recreational dispensaries. SUBJECTS Colorado residents MEASURES: We use licensing information from the Colorado Department of Revenue to measure county-level exposure to cannabis outlets. We use the state's Prescription Drug Monitoring Program (2013-2018) to construct opioid-prescribing measures of number of 30-day fills and total morphine equivalents, both per county resident per quarter. We construct outcomes of opioid-related inpatient visits (2011-2018) and emergency department visits (2013-2018) with Colorado Hospital Association data. We use linear models in a differences-in-differences framework that accounts for the varying exposure to medical and recreational cannabis over time. There are 2048 county-quarter observations used in the analysis. RESULTS We find mixed evidence of cannabis exposure on opioid-related outcomes at the county level. We find increasing exposure to recreational cannabis is associated with a statistically significant decrease in number of 30-day fills (coefficient: -117.6, p-value<0.01) and inpatient visits (coefficient: -0.8, p-value: 0.03), but not total MME nor ED visits. Counties with no medical exposure prior to recreational legalization experience greater reductions in the number of 30-day fills and MME than counties with prior medical exposure (p=0.02 for both). CONCLUSIONS Our mixed findings suggest that further increases in cannabis beyond medical access may not always reduce opioid prescribing or opioid-related hospital visits at a population level.
Collapse
Affiliation(s)
| | - George Sam Wang
- Department of Pediatrics, Children’s Hospital Colorado, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Asa Wilks
- RAND Corporation, Santa Monica, CA USA
| | - Gregory Tung
- Department of Health Systems, Management & Policy, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Amii Kress
- ECHO Data Analysis Center, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD USA
| | | | - Rosalie Liccardo Pacula
- Sol Price School of Public Policy, Schaeffer Center for Health Policy & Economics, University of Southern California, Los Angeles, CA USA
| |
Collapse
|
13
|
Reddon H, Lake S, Socias ME, Hayashi K, DeBeck K, Walsh Z, Milloy MJ. Cannabis use to manage opioid cravings among people who use unregulated opioids during a drug toxicity crisis. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2023; 119:104113. [PMID: 37481875 PMCID: PMC10817207 DOI: 10.1016/j.drugpo.2023.104113] [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: 04/24/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/25/2023]
Abstract
BACKGROUND Accumulating evidence has indicated that cannabis substitution is often used as a harm reduction strategy among people who use unregulated opioids (PWUO) and people living with chronic pain. We sought to investigate the association between cannabis use to manage opioid cravings and self-reported changes in opioid use among structurally marginalized PWUO. METHODS The data were collected from a cross-sectional questionnaire administered to PWUO in Vancouver, Canada. Binary logistic regression was used to analyze the association between cannabis use to manage opioid cravings and self-reported changes in unregulated opioid use. RESULTS A total of 205 people who use cannabis and opioids were enrolled in the present study from December 2019 to November 2021. Cannabis use to manage opioid cravings was reported by 118 (57.6%) participants. In the multivariable analysis, cannabis use to manage opioid cravings (adjusted Odds Ratio [aOR] = 2.13, 95% confidence interval [CI]: 1.07, 4.27) was significantly associated with self-reported reductions in opioid use. In the sub-analyses of pain, cannabis use to manage opioid cravings was only associated with self-assessed reductions in opioid use among people living with moderate to severe pain (aOR = 4.44, 95% CI: 1.52, 12.97). In the sub-analyses of males and females, cannabis use to manage opioid cravings was only associated with self-assessed reductions in opioid use among females (aOR = 8.19, 95% CI: 1.20, 55.81). CONCLUSIONS These findings indicate that cannabis use to manage opioid cravings is a prevalent motivation for cannabis use among PWUO and is associated with self-assessed reductions in opioid use during periods of cannabis use. Increasing the accessibility of cannabis products for therapeutic use may be a useful supplementary strategy to mitigate exposure to unregulated opioids and associated harm during the ongoing drug toxicity crisis.
Collapse
Affiliation(s)
- Hudson Reddon
- British Columbia Centre on Substance Use, Vancouver, BC V6Z 2A9, Canada; Department of Medicine, University of British Columbia, Vancouver, BC V6Z 1Y6, Canada.
| | - Stephanie Lake
- UCLA Center for Cannabis and Cannabinoids, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, California, CA 90025, USA; Department of Psychiatry, David Geffen School of Medicine, University of California, Los Angeles, California, CA 90025, USA
| | - Maria Eugenia Socias
- British Columbia Centre on Substance Use, Vancouver, BC V6Z 2A9, Canada; Department of Medicine, University of British Columbia, Vancouver, BC V6Z 1Y6, Canada
| | - Kanna Hayashi
- British Columbia Centre on Substance Use, Vancouver, BC V6Z 2A9, Canada; Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Kora DeBeck
- British Columbia Centre on Substance Use, Vancouver, BC V6Z 2A9, Canada; School of Public Policy, Simon Fraser University, Burnaby, BC V6B 5K3, Canada
| | - Zach Walsh
- British Columbia Centre on Substance Use, Vancouver, BC V6Z 2A9, Canada; University of British Columbia, Department of Psychology, Kelowna, BC, V1V 1V7, Canada
| | - M-J Milloy
- British Columbia Centre on Substance Use, Vancouver, BC V6Z 2A9, Canada; Department of Medicine, University of British Columbia, Vancouver, BC V6Z 1Y6, Canada
| |
Collapse
|
14
|
Costiniuk C, MacCallum CA, Boivin M, Rueda S, Lacasse G, Walsh Z, Daeninck PJ, Margolese S, Mandarino E, Deol JK, Sanchez T, Bell AD. Why a distinct medical stream is necessary to support patients using cannabis for medical purposes. J Cannabis Res 2023; 5:25. [PMID: 37403136 DOI: 10.1186/s42238-023-00195-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 06/21/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND Since 2001, Canadians have been able to obtain cannabis for medical purposes, initially through the Access to Cannabis for Medical Purposes Regulations (ACMPR). The Cannabis Act (Bill C-45) came into force on October 17, 2018, replacing the ACMPR. The Cannabis Act enables Canadians to possess cannabis purchased from a licensed retailer without authorization for either medical or nonmedical purposes. The Cannabis Act is currently the guiding legislation which governs both medical and nonmedical access. The Cannabis Act contains some improvements for patients but is essentially the same as its previous legislation. Beginning in October 2022, the federal government is conducting a review of the Cannabis Act and is questioning whether a distinct medical cannabis stream is still required, given the ease of access to cannabis and cannabis products. Although there is overlap in the reasons for medical and recreational cannabis use, the distinct legislation of medical versus recreational use of cannabis in Canada may be under threat. MAIN BODY A large segment of the medical, academic, research, and lay communities agree that there is a need for distinct medical and recreational cannabis streams. Perhaps most importantly, separation of these streams is necessary to ensure that both medical cannabis patients and healthcare providers receive the required support needed to optimize benefits while minimizing risks associated with medical cannabis use. Preservation of distinct medical and recreational streams can help to ensure that needs of different stakeholders are met. For example, patients require guidance in the form of assessing the appropriateness of cannabis use, selection of appropriate products and dosage forms, dosing titration, screening for drug interactions, and safety monitoring. Healthcare providers require access to undergraduate and continuing health education as well as support from their professional organizations to ensure medical cannabis is appropriately prescribed. Although there are challenges in conducing research, as motives for cannabis use frequently straddle boundaries between medical versus recreational cannabis use, maintenance of a distinct medical stream is also necessary to ensure adequate supply of cannabis products appropriate for medical use, to reduce stigma associated with cannabis in both patients and providers, to help enable reimbursement for patients, to facilitate removal of taxation on cannabis used for medical purposes, and to promote research on all aspects of medical cannabis. CONCLUSION Cannabis products for medical and recreational purposes have different objectives and needs, requiring different methods of distribution, access, and monitoring. HCPs, patients, and the commercial cannabis industry would serve Canadians well to continue to advocate to policy makers to ensure the continued existence of two distinct streams and must strive to make ongoing improvements to the current programs.
Collapse
Affiliation(s)
- Cecilia Costiniuk
- Chronic Viral Illness Service/Division of Infectious Diseases, McGill University Health Centre, McGill Cannabis Research Centre and Research Institute of the McGill University Health Centre, Montreal, QC, H4A 3J1, Canada.
| | - Caroline A MacCallum
- Department of Medicine and Division of Palliative Care, University of British Columbia and Greenleaf Medical Clinic, Vancouver, BC, Canada
| | | | - Sergio Rueda
- Department of Psychiatry and Institute of Health Policy, Management and Evaluation, Centre for Addiction and Mental Health, Institute for Mental Health Policy Research and Campbell Family Mental Health Research Institute, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | | | - Zach Walsh
- Department of Psychology, University of British Columbia, Kelowna, BC, Canada
| | - Paul J Daeninck
- Department of Internal Medicine, CancerCare Manitoba, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada
| | - Shari Margolese
- Canadian Institutes of Health Research (CIHR) Canadian HIV Trials Network, Vancouver, BC, Canada
| | - Enrico Mandarino
- Canadian Institutes of Health Research (CIHR) Canadian HIV Trials Network, Vancouver, BC, Canada
- MJardin Canada, Toronto, ON, Canada
| | - Jagpaul Kaur Deol
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Tatiana Sanchez
- Department of Psychology, University of British Columbia, Kelowna, BC, Canada
| | - Alan D Bell
- Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
15
|
Rainka MM, Aladeen TS, Mattle AG, Lewandowski E, Vanini D, McCormack K, Mechtler L. Multiple Sclerosis and Use of Medical Cannabis: A Retrospective Review of a Neurology Outpatient Population. Int J MS Care 2023; 25:111-117. [PMID: 37250194 PMCID: PMC10211357 DOI: 10.7224/1537-2073.2022-006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
BACKGROUND Patients diagnosed as having multiple sclerosis (MS) experience a wide range of symptoms requiring pharmacologic management, and many do not achieve adequate symptom control. The purpose of this study was to evaluate the role of medical cannabis (MC) as part of a comprehensive treatment plan for patients with MS. METHODS A retrospective medical record review of 141 patients with MS receiving MC for symptom management was conducted. Data were collected for up to 4 follow-up appointments after initiation of MC. Outcomes included changes in MS symptoms, medication changes, adverse events, and changes in cognition and mobility. RESULTS Patients experienced extensive MS symptom improvement after initiation of MC, with alleviation of pain (72% of patients) and spasticity (48% of patients) and improvement in sleep (40% of patients) the most common. There was a significant reduction in concomitant opioid use after initiating MC as evidenced by a significant decrease in daily morphine milligram equivalents among patients prescribed opioid analgesics (P = .01). Decreases in muscle relaxant use and benzodiazepine use did not reach significance (P > .05). The most common adverse reaction to MC was fatigue (11% of patients). CONCLUSIONS In many patients with MS, MC was well tolerated, eased pain and spasticity, improved sleep and other symptoms, and reduced use of concomitant opioid analgesics. Prospective studies are needed to further investigate the role of MC in the treatment of patients with MS.
Collapse
Affiliation(s)
- Michelle M. Rainka
- From the Dent Neurologic Institute, Buffalo, NY, USA (MMR, TSA, AGM, KM, LM)
- The University at Buffalo School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, USA (MMR, TSA, AGM, EL, DV)
| | - Traci S. Aladeen
- From the Dent Neurologic Institute, Buffalo, NY, USA (MMR, TSA, AGM, KM, LM)
- The University at Buffalo School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, USA (MMR, TSA, AGM, EL, DV)
| | - Anna G. Mattle
- From the Dent Neurologic Institute, Buffalo, NY, USA (MMR, TSA, AGM, KM, LM)
- The University at Buffalo School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, USA (MMR, TSA, AGM, EL, DV)
| | - Emily Lewandowski
- The University at Buffalo School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, USA (MMR, TSA, AGM, EL, DV)
| | - Denis Vanini
- The University at Buffalo School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, USA (MMR, TSA, AGM, EL, DV)
| | - Katelyn McCormack
- From the Dent Neurologic Institute, Buffalo, NY, USA (MMR, TSA, AGM, KM, LM)
| | - Laszlo Mechtler
- From the Dent Neurologic Institute, Buffalo, NY, USA (MMR, TSA, AGM, KM, LM)
| |
Collapse
|
16
|
Loh J, Buxton J, Kaida A, Voon P, Grant C, Milloy MJ. Estimating the prevalence and correlates of pain among people living with HIV who use unregulated drugs in a Canadian setting. J Opioid Manag 2023; 19:225-237. [PMID: 37145925 PMCID: PMC10811581 DOI: 10.5055/jom.2023.0778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Although prevalent among people living with human immunodeficiency virus (HIV) (PLWH) and people who use unregulated drugs (PWUD), pain and its possible links to substance use patterns and engagement in HIV treatment remains poorly characterized. We sought to evaluate the prevalence and correlates of pain among a cohort of PLWH who use un-regulated drugs. Between December 2011 and November 2018, 709 participants were recruited, and data were analyzed using generalized linear mixed-effects (GLMM). At baseline, 374 (53 percent) individuals reported moderate-to-extreme pain in the previous 6 months. In a multivariable model, pain was significantly associated with nonmedical prescrip-tion-opioid use (adjusted odds ratio (AOR) = 1.63, 95 percent confidence interval (CI): 1.30-2.05), nonfatal overdose (AOR = 1.46, 95 percent CI: 1.11-1.93), self-managing pain (AOR = 2.25, 95 percent CI: 1.94-2.61), requesting pain medication in the previous 6 months (AOR = 2.01, 95 percent CI: 1.69-2.38), and ever being diagnosed with a mental illness (AOR = 1.47, 95 percent CI: 1.11-1.94). Establishing accessible pain management interventions that address the complex intersection of pain, drug use, and HIV-infection has potential to improve quality of life outcomes among this population.
Collapse
Affiliation(s)
- Jane Loh
- British Columbia Centre on Substance Use, School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Jane Buxton
- School of Population and Public Health, University of British Columbia, British Columbia Centre for Disease Control, Vancouver, Canada
| | - Angela Kaida
- Faculty of Health Sciences, Simon Fraser University, Burnaby, Canada
| | - Pauline Voon
- British Columbia Centre on Substance Use, Vancouver, Canada
| | - Cameron Grant
- British Columbia Centre on Substance Use, Vancouver, Canada
| | - M-J Milloy
- British Columbia Centre on Substance Use, Department of Medicine, University of British Columbia, Vancouver, Canada
| |
Collapse
|
17
|
Yockey RA, Hoopsick RA. National Trends in Past-Year Marijuana Use among Veterans in the United States, 2013-2019. Subst Use Misuse 2023; 58:822-827. [PMID: 36943145 DOI: 10.1080/10826084.2023.2191700] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Background: The legal landscape surrounding marijuana use in the United States (US) is ever changing. Although substantial research has investigated risk factors of use among different populations, much is to be gleaned among veteran populations, who are at heightened risk for mental and physical health problems, which may be precipitated or relieved by marijuana use. The present study investigated correlates and trends of recreational and medical marijuana use among a large national sample of US Veterans. Methods: Data from the National Survey on Drug Use and Health (2013-2019) comprised of 16,350 veterans 18 years or older were analyzed. We tested for weighted linear and quadratic trends in past-year use. Results: Weighted analyses revealed a significant increase (56%) in overall marijuana use from 2013-2019, with nearly one in 10 veterans (9.79%) reporting past-year marijuana use. Compared to 18 to 25-year-old veterans, veterans who were aged 35-49 years (aPR: 1.44, 95% CI 1.05, 1.97), 50-64 years (aPR: 1.68, 95% CI 1.11, 2.55), and 65 years or older (aPR: 1.90, 95% CI 1.24, 2.90) were more likely to report using medical marijuana in the past year. Conclusions: This increase, in the context of federal VA provider restrictions, has implications for issues of care coordination and safe supply for veterans. Given the rapidly changing and heterogenous landscape of recreational and medical marijuana policy in the US, the present study may inform harm reduction efforts and behavioral interventions.
Collapse
Affiliation(s)
- R Andrew Yockey
- Department of Biostatistics and Epidemiology, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Rachel A Hoopsick
- Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, Champaign, Illinois, USA
| |
Collapse
|
18
|
Shah S, Schwenk ES, Sondekoppam RV, Clarke H, Zakowski M, Rzasa-Lynn RS, Yeung B, Nicholson K, Schwartz G, Hooten WM, Wallace M, Viscusi ER, Narouze S. ASRA Pain Medicine consensus guidelines on the management of the perioperative patient on cannabis and cannabinoids. Reg Anesth Pain Med 2023; 48:97-117. [PMID: 36596580 DOI: 10.1136/rapm-2022-104013] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/08/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND The past two decades have seen an increase in cannabis use due to both regulatory changes and an interest in potential therapeutic effects of the substance, yet many aspects of the substance and their health implications remain controversial or unclear. METHODS In November 2020, the American Society of Regional Anesthesia and Pain Medicine charged the Cannabis Working Group to develop guidelines for the perioperative use of cannabis. The Perioperative Use of Cannabis and Cannabinoids Guidelines Committee was charged with drafting responses to the nine key questions using a modified Delphi method with the overall goal of producing a document focused on the safe management of surgical patients using cannabinoids. A consensus recommendation required ≥75% agreement. RESULTS Nine questions were selected, with 100% consensus achieved on third-round voting. Topics addressed included perioperative screening, postponement of elective surgery, concomitant use of opioid and cannabis perioperatively, implications for parturients, adjustment in anesthetic and analgesics intraoperatively, postoperative monitoring, cannabis use disorder, and postoperative concerns. Surgical patients using cannabinoids are at potential increased risk for negative perioperative outcomes. CONCLUSIONS Specific clinical recommendations for perioperative management of cannabis and cannabinoids were successfully created.
Collapse
Affiliation(s)
- Shalini Shah
- Dept of Anesthesiology & Perioperative Care, UC Irvine Health, Orange, California, USA
| | - Eric S Schwenk
- Anesthesiology and Perioperative Medicine, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | | | - Hance Clarke
- Anesthesiology and Pain Medicine, Univ Toronto, Toronto, Ontario, Canada
| | - Mark Zakowski
- Anesthesiology, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | | - Brent Yeung
- Anesthesiology and Perioperative Care, University of California Irvine, Irvine, California, USA
| | | | - Gary Schwartz
- AABP Integrative Pain Care, Melville, New York, USA.,Anesthesiology, Maimonides Medical Center, Brooklyn, New York, USA
| | | | - Mark Wallace
- Anesthesiology, Division of Pain Medicine, University of California San Diego, La Jolla, California, USA
| | - Eugene R Viscusi
- Anesthesiology and Perioperative Medicine, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Samer Narouze
- Center for Pain Medicine, Western Reserve Hospital, Cuyahoga Falls, Ohio, USA
| |
Collapse
|
19
|
Lake S, Kerr T, Buxton J, Walsh Z, Cooper ZD, Socías ME, Fairbairn N, Hayashi K, Milloy MJ. The Cannabis-Dependent Relationship Between Methadone Treatment Dose and Illicit Opioid Use in a Community-Based Cohort of People Who Use Drugs. Cannabis Cannabinoid Res 2023; 8:155-165. [PMID: 34813374 PMCID: PMC9940808 DOI: 10.1089/can.2021.0080] [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] [Indexed: 01/13/2023] Open
Abstract
Background: Methadone maintenance treatment (MMT) is an effective treatment for opioid use disorder. However, subtherapeutic dosing may lead to continued opioid use by failing to suppress opioid withdrawal and craving. Preclinical and pilot experimental research suggests that cannabinoids may reduce opioid withdrawal and craving. We sought to test whether the association between low methadone dose and illicit opioid use differs according to concurrent cannabis use patterns. Methods: Data for this study were derived from two community-recruited cohorts of people (≥18 years old) who use illicit drugs in Vancouver, Canada. We used generalized estimating equations to estimate the adjusted association between lower daily MMT dose (<90 mg/day) and daily illicit opioid use, testing for interaction between dose and daily cannabis use. Results: Between December 2005 and December 2018, 1389 participants reported MMT enrolment and were included in the study. We observed a significant interaction (p<0.01) between daily cannabis and lower MMT dose on concurrent daily illicit opioid use: lower MMT doses increased the odds of daily illicit opioid use by 86% (adjusted odds ratio [AOR]=1.86, 95% confidence interval [CI]=1.61-2.16) during periods of no or low-frequency cannabis use and by 30% during periods of daily cannabis use (AOR=1.30, 95% CI=1.01-1.67). Discussion: This study provides preliminary observational evidence that cannabis may mitigate some of the negative effects of subtherapeutic MMT dosing, guiding future clinical investigations into the safety and efficacy of cannabis and cannabinoids as adjunct treatment for MMT.
Collapse
Affiliation(s)
- Stephanie Lake
- British Columbia Centre on Substance Use, Vancouver, Canada
- UCLA Cannabis Research Initiative, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
| | - Thomas Kerr
- British Columbia Centre on Substance Use, Vancouver, Canada
- Division of Social Medicine, Department of Medicine, University of British Columbia, St. Paul's Hospital, Vancouver, Canada
| | - Jane Buxton
- School of Population and Public Health, University of British Columbia, Vancouver, Canada
| | - Zach Walsh
- Department of Psychology, University of British Columbia, Kelowna, Canada
| | - Ziva D. Cooper
- UCLA Cannabis Research Initiative, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
| | - M. Eugenia Socías
- British Columbia Centre on Substance Use, Vancouver, Canada
- Division of Social Medicine, Department of Medicine, University of British Columbia, St. Paul's Hospital, Vancouver, Canada
| | - Nadia Fairbairn
- British Columbia Centre on Substance Use, Vancouver, Canada
- Division of Social Medicine, Department of Medicine, University of British Columbia, St. Paul's Hospital, Vancouver, Canada
| | - Kanna Hayashi
- British Columbia Centre on Substance Use, Vancouver, Canada
- Faculty of Health Sciences, Simon Fraser University, Burnaby, Canada
| | - M.-J. Milloy
- British Columbia Centre on Substance Use, Vancouver, Canada
- Division of Social Medicine, Department of Medicine, University of British Columbia, St. Paul's Hospital, Vancouver, Canada
| |
Collapse
|
20
|
Nelson EUE, Kitchen C. Cannabis use for pain relief in the context of health service barriers: Accounts of street-involved Nigerian women suffering chronic pain. Drug Alcohol Rev 2023; 42:309-317. [PMID: 36193548 DOI: 10.1111/dar.13559] [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: 02/07/2022] [Revised: 09/14/2022] [Accepted: 09/14/2022] [Indexed: 02/03/2023]
Abstract
INTRODUCTION This study explored cannabis use for pain relief among socially marginalised Nigerian women in the context of barriers to pain management. METHODS The study was designed as a qualitative exploratory study of pain experience and management. Sixteen in-depth, individual interviews were conducted with street-involved women who use drugs and had chronic pain. Transcripts were coded and analysed thematically. RESULTS Pain was experienced as a pervasive feature of everyday life that disrupted daily routines, affected economic activities, strained social relationships and had adverse effects on health and wellbeing. Participants sought treatment in health facilities, but faced social and health system barriers to service utilisation including financial cost of services, dismissal of symptoms by providers, stigma due to physical appearance, substance use and lack of social support. These barriers encouraged disengagement from services and reliance on cannabis (along with heroin and diverted prescription opioids) for pain management. Cannabis use relieved pain and improved daily functioning, enabling participants to undertake economic activities. However, using cannabis to enhance the effects of opioids and heavy and long-term use owing to pain chronicity and disability generated concerns about harms. DISCUSSION AND CONCLUSIONS Findings show the therapeutic benefits of cannabis in the face of barriers to pain management. This support calls to explore the potentials of cannabis for pain management for socially marginalised populations and to develop medical guidelines to reduce the risk of adverse health consequences. Therapeutic cannabis, provided based on medical guidance, could improve pain management for socially marginalised populations.
Collapse
Affiliation(s)
- Ediomo-Ubong E Nelson
- Global Drug Policy Observatory, Swansea University, Swansea, UK
- Centre for Research and Information on Substance Abuse, Uyo, Nigeria
| | - Chenai Kitchen
- School of Pharmacy, Xi'an Jiaotong University, Shaanxi, China
| |
Collapse
|
21
|
Wiese BM, Alvarez Reyes A, Vanderah TW, Largent-Milnes TM. The endocannabinoid system and breathing. Front Neurosci 2023; 17:1126004. [PMID: 37144090 PMCID: PMC10153446 DOI: 10.3389/fnins.2023.1126004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/16/2023] [Indexed: 05/06/2023] Open
Abstract
Recent changes in cannabis accessibility have provided adjunct therapies for patients across numerous disease states and highlights the urgency in understanding how cannabinoids and the endocannabinoid (EC) system interact with other physiological structures. The EC system plays a critical and modulatory role in respiratory homeostasis and pulmonary functionality. Respiratory control begins in the brainstem without peripheral input, and coordinates the preBötzinger complex, a component of the ventral respiratory group that interacts with the dorsal respiratory group to synchronize burstlet activity and drive inspiration. An additional rhythm generator: the retrotrapezoid nucleus/parafacial respiratory group drives active expiration during conditions of exercise or high CO2. Combined with the feedback information from the periphery: through chemo- and baroreceptors including the carotid bodies, the cranial nerves, stretch of the diaphragm and intercostal muscles, lung tissue, and immune cells, and the cranial nerves, our respiratory system can fine tune motor outputs that ensure we have the oxygen necessary to survive and can expel the CO2 waste we produce, and every aspect of this process can be influenced by the EC system. The expansion in cannabis access and potential therapeutic benefits, it is essential that investigations continue to uncover the underpinnings and mechanistic workings of the EC system. It is imperative to understand the impact cannabis, and exogenous cannabinoids have on these physiological systems, and how some of these compounds can mitigate respiratory depression when combined with opioids or other medicinal therapies. This review highlights the respiratory system from the perspective of central versus peripheral respiratory functionality and how these behaviors can be influenced by the EC system. This review will summarize the literature available on organic and synthetic cannabinoids in breathing and how that has shaped our understanding of the role of the EC system in respiratory homeostasis. Finally, we look at some potential future therapeutic applications the EC system has to offer for the treatment of respiratory diseases and a possible role in expanding the safety profile of opioid therapies while preventing future opioid overdose fatalities that result from respiratory arrest or persistent apnea.
Collapse
Affiliation(s)
- Beth M. Wiese
- Department of Pharmacology, University of Arizona, Tucson, AZ, United States
| | - Angelica Alvarez Reyes
- Department of Pharmacology, University of Arizona, Tucson, AZ, United States
- College of Medicine, University of Arizona, Tucson, AZ, United States
| | - Todd W. Vanderah
- Department of Pharmacology, University of Arizona, Tucson, AZ, United States
| | - Tally M. Largent-Milnes
- Department of Pharmacology, University of Arizona, Tucson, AZ, United States
- *Correspondence: Tally M. Largent-Milnes,
| |
Collapse
|
22
|
Gunturu S, Jaka S. Editorial: Opioid overdose and harm reduction approaches to combat the looming crisis. Front Psychiatry 2023; 14:1197388. [PMID: 37151976 PMCID: PMC10158929 DOI: 10.3389/fpsyt.2023.1197388] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/05/2023] [Indexed: 05/09/2023] Open
Affiliation(s)
- Sasidhar Gunturu
- Department of Psychiatry, BronxCare Health System, The Bronx, NY, United States
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York City, NY, United States
- *Correspondence: Sasidhar Gunturu
| | - Sanobar Jaka
- Nursing Home Division, Essen Health Care, The Bronx, NY, United States
- Special Care Center, BronxCare Health System, The Bronx, NY, United States
| |
Collapse
|
23
|
Coffin PO, Martinez RS, Wylie B, Ryder B. Primary care management of Long-Term opioid therapy. Ann Med 2022; 54:2451-2469. [PMID: 36111417 PMCID: PMC9487960 DOI: 10.1080/07853890.2022.2121417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The United States underwent massive expansion in opioid prescribing from 1990-2010, followed by opioid stewardship initiatives and reduced prescribing. Opioids are no longer considered first-line therapy for most chronic pain conditions and clinicians should first seek alternatives in most circumstances. Patients who have been treated with opioids long-term should be managed differently, sometimes even continued on opioids due to physiologic changes wrought by long-term opioid therapy and documented risks of discontinuation. When providing long-term opioid therapy, clinicians should document opioid stewardship measures, including assessments, consents, medication reconciliation, and offering naloxone, along with the rationale to continue opioid therapy. Clinicians should screen regularly for opioid use disorder and arrange for or directly provide treatment. In particular, buprenorphine can be highly useful for co-morbid pain and opioid use disorder. Addressing other substance use disorders, as well as preventive health related to substance use, should be a priority in patients with opioid use disorder. Patient-centered practices, such as shared decision-making and attending to related facets of a patient's life that influence health outcomes, should be implemented at all points of care.Key messagesAlthough opioids are no longer considered first-line therapy for most chronic pain, management of patients already taking long-term opioid therapy must be individualised.Documentation of opioid stewardship measures can help to organise opioid prescribing and protect clinicians from regulatory scrutiny.Management of resultant opioid use disorder should include provision of medications, most often buprenorphine, and several additional screening and preventive measures.
Collapse
Affiliation(s)
- Phillip O Coffin
- San Francisco Department of Public Health, Center on Substance Use and Health, San Francisco, CA, USA
| | - Rebecca S Martinez
- San Francisco Department of Public Health, Center on Substance Use and Health, San Francisco, CA, USA
| | - Brian Wylie
- San Francisco Department of Public Health, Center on Substance Use and Health, San Francisco, CA, USA
| | - Bunny Ryder
- San Francisco Department of Public Health, Center on Substance Use and Health, San Francisco, CA, USA
| |
Collapse
|
24
|
Karamouzian M, Buxton JA, Hategeka C, Nosova E, Hayashi K, Milloy MJ, Kerr T. Shifts in substance use patterns among a cohort of people who use opioids after delisting of OxyContin in BC, Canada: An interrupted time series study. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2022; 109:103852. [PMID: 36122483 PMCID: PMC9885984 DOI: 10.1016/j.drugpo.2022.103852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND OxyContin was delisted from Canadian provincial drug formularies in March 2012 and replaced with a reformulated tamper-resistant form of oxycodone (i.e., OxyNeo). We assessed if delisting of OxyContin was associated with changes in the use of unregulated opioids and other substances among people who use opioids (PWUO). METHODS Data were derived from two prospective cohort studies of people who use drugs in Vancouver, BC, Canada from 2006 to 2018. PWUO who had at least one follow-up visit before and after delisting of OxyContin were included. Outcomes of interest were self-reported regular (i.e., at least weekly) use of heroin, non-prescribed prescription opioids, cannabis, methamphetamine, crack cocaine, and powder cocaine during the previous six months. Using quasi-experimental interrupted time series, we fit generalized least squares models to assess participants' immediate and long-term substance use practices after the policy change. RESULTS We analyzed data from 1014 participants who contributed to 17457 visits during the study. Following the delisting of OxyContin, heroin use increased immediately by 5.17% (95% confidence intervals [CI]: 0.68 to 9.67) and over time by 0.47% (0.35 to 0.58) per month. Non-prescribed prescription opioid use increased immediately by 1.80% (0.10 to 3.50) and over time by 0.16% (0.12 to 0.19) per month. Cannabis use increased immediately by 4.37% (0.88 to 7.87) and over time by 0.11% (0.02 to 0.19) per month. Methamphetamine use did not increase immediately but increased over time by 0.10% (0.01 to 0.18) per month. Crack cocaine use decreased immediately by 6.13% (-10.94 to -1.69) but not significantly over time. Lastly, powder cocaine use did not increase immediately or over time. CONCLUSIONS Delisting of OxyContin in BC was not associated with a reduction in unregulated opioid use among PWUO. Our findings point to a shift in substance use patterns of PWUO post-intervention and further highlight the unintended consequences of supply-reduction interventions in addressing the opioid epidemic.
Collapse
Affiliation(s)
- Mohammad Karamouzian
- British Columbia Centre on Substance use, Vancouver, BC, Canada, V6Z 2A9; School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3; Centre on Drug Policy Evaluation, Saint Michael...s Hospital, Toronto, ON, CANADA, M5B 1T8.
| | - Jane A Buxton
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Celestin Hategeka
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, 655 Huntington Ave, Boston, MA 02115,USA; Centre for Health Services and Policy Research, School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada, V6T 1Z3
| | - Ekaterina Nosova
- British Columbia Centre on Substance use, Vancouver, BC, Canada, V6Z 2A9
| | - Kanna Hayashi
- British Columbia Centre on Substance use, Vancouver, BC, Canada, V6Z 2A9
| | - M-J Milloy
- British Columbia Centre on Substance use, Vancouver, BC, Canada, V6Z 2A9; Department of Medicine, University of British Columbia, Vancouver, BC, Canada, V6Z 1Y6
| | - Thomas Kerr
- British Columbia Centre on Substance use, Vancouver, BC, Canada, V6Z 2A9; Department of Medicine, University of British Columbia, Vancouver, BC, Canada, V6Z 1Y6
| |
Collapse
|
25
|
Garg R, Shojania K, De Vera MA. The association between cannabis and codeine use: a nationally representative cross-sectional study in Canada. J Cannabis Res 2022; 4:49. [PMID: 36085170 PMCID: PMC9463740 DOI: 10.1186/s42238-022-00160-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 09/02/2022] [Indexed: 11/10/2022] Open
Abstract
Background Due to the growing use of cannabis for the purposes of pain relief, evidence is needed on the impact of cannabis use on concurrent analgesic use. Therefore, our objective was to evaluate the association between the use of cannabis and codeine. Methods We conducted a cross-sectional study using data from the nationally representative Canadian Tobacco, Alcohol and Drugs Survey (2017). The primary explanatory variable was self-reported use of cannabis within the past year. The outcome was the use of codeine-containing product(s) within the past year. We used multivariable binomial logistic regression models. Results Our study sample comprised 15,459 respondents including 3338 individuals who reported cannabis use within the past year of whom 955 (36.2%) used it for medical purposes. Among individuals who reported cannabis use, the majority were male (N = 1833, 62.2%). Self-reported use of cannabis was associated with codeine use (adjusted odds ratio [aOR] 1.89, 95% CI 1.36 to 2.62). Additionally, when limited to cannabis users only, we found people who used cannabis for medical purposes to be three times more likely to also report codeine use (adjusted odds ratio [aOR] 2.96, 95% CI 1.72 to 5.09). Discussion The use of cannabis was associated with increased odds of codeine use, especially among individuals who used it for medical purposes. Our findings suggest a potential role for healthcare providers to be aware of or monitor patients’ use of cannabis, as the long-term adverse events associated with concurrent cannabis and opioid use remain unknown.
Collapse
|
26
|
Meacham MC, Nobles AL, Tompkins DA, Thrul J. "I got a bunch of weed to help me through the withdrawals": Naturalistic cannabis use reported in online opioid and opioid recovery community discussion forums. PLoS One 2022; 17:e0263583. [PMID: 35134074 PMCID: PMC8824349 DOI: 10.1371/journal.pone.0263583] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 01/21/2022] [Indexed: 11/23/2022] Open
Abstract
A growing body of research has reported on the potential opioid-sparing effects of cannabis and cannabinoids, but less is known about specific mechanisms. The present research examines cannabis-related posts in two large online communities on the Reddit platform (“subreddits”) to compare mentions of naturalistic cannabis use by persons self-identifying as actively using opioids versus persons in recovery. We extracted all posts mentioning cannabis-related keywords (e.g., “weed”, “cannabis”, “marijuana”) from December 2015 through August 2019 from an opioid use subreddit and an opioid recovery subreddit. To investigate how cannabis is discussed at-scale, we identified and compared the most frequent phrases in cannabis-related posts in each subreddit using term-frequency-inverse document frequency (TF-IDF) weighting. To contextualize these findings, we also conducted a qualitative content analysis of 200 random posts (100 from each subreddit). Cannabis-related posts were about twice as prevalent in the recovery subreddit (n = 908; 5.4% of 16,791 posts) than in the active opioid use subreddit (n = 4,224; 2.6% of 159,994 posts, p < .001). The most frequent phrases from the recovery subreddit referred to time without using opioids and the possibility of using cannabis as a “treatment.” The most frequent phrases from the opioid subreddit referred to concurrent use of cannabis and opioids. The most common motivations for using cannabis were to manage opioid withdrawal symptoms in the recovery subreddit, often in conjunction with anti-anxiety and GI-distress “comfort meds,” and to enhance the “high” when used in combination with opioids in the opioid subreddit. Despite limitations in generalizability from pseudonymous online posts, this examination of reports of naturalistic cannabis use in relation to opioid use identified withdrawal symptom management as a common motivation. Future research is warranted with more structured assessments that examines the role of cannabis and cannabinoids in addressing both somatic and affective symptoms of opioid withdrawal.
Collapse
Affiliation(s)
- Meredith C. Meacham
- Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Francisco, CA, United States of America
- * E-mail:
| | - Alicia L. Nobles
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California San Diego, San Diego, CA, United States of America
| | - D. Andrew Tompkins
- Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Francisco, CA, United States of America
| | - Johannes Thrul
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, United States of America
- Centre for Alcohol Policy Research, La Trobe University, Melbourne, Australia
| |
Collapse
|
27
|
Pain, opioid use, depressive symptoms, and mortality in adults living in precarious housing or homelessness. Pain 2022; 163:2213-2223. [DOI: 10.1097/j.pain.0000000000002619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 02/15/2022] [Indexed: 11/26/2022]
|
28
|
Exploring cannabis use and perspectives among psoriatic disease patients. Clin Rheumatol 2022; 41:1431-1437. [PMID: 35050419 DOI: 10.1007/s10067-022-06066-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To assess the correlation between cannabis use and psoriatic disease severity, health-related quality of life, pain, psychosocial outcomes, and cytokine levels in psoriasis (PsC) and psoriatic arthritis (PsA) patients. METHODS PsC and PsA patients enrolled in the International Psoriasis and Arthritis Research Team (IPART) program were surveyed on cannabis use and were asked to provide a serum and urine sample. Demographic and clinical variables were compared between users and non-users using Student's t-test or Mann-Whitney U test for continuous variables, and chi-square or Fisher's exact test for categorical variables. RESULTS Of 151 respondents, 30% reported current cannabis use within the last year. Compared to non-users, cannabis users were younger and had a shorter PsA duration and poorer mental health as measured by the SF-36. Other measures of health-related quality of life and pain were comparable between the groups. Respondents' primary perceived benefits of cannabis use were aid in sleep and arthritis pain relief, but there was no difference in pain between users and non-users. No THC was detected in the urine of non-users while users had a mean level of 19.6 ng/ml. Serum IL-23 levels were statistically significantly higher in non-users than in users. CONCLUSION A third of the patients used cannabis within the past year, and 54.3% of users reported the use of cannabis for arthritis pain relief. However, there was no difference in pain scores. Comprehensive education for providers on the current body of evidence and further studies on cannabis use and outcomes in psoriatic disease are needed. Key Points • A third of patients with psoriatic arthritis have used cannabis in the past year. • Most used it for better sleep and control of pain. • There was no difference in pain scores between users and non-users. • IL-23 levels were significantly higher in non-users.
Collapse
|
29
|
Wadsworth E, Hines LA, Hammond D. Legal status of recreational cannabis and self-reported substitution of cannabis for opioids or prescription pain medication in Canada and the United States. Subst Abus 2022; 43:943-948. [PMID: 35420977 PMCID: PMC7614954 DOI: 10.1080/08897077.2022.2060431] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Aims: With increased liberalization of cannabis policies in North America, there is growing interest in the use of cannabis to manage pain instead of opioids. The objectives of the study were to (1) examine the use of cannabis for pain relief in Canada and the United States (US) in 2018 and 2019; (2) examine the association between recreational cannabis laws and changes in the use of cannabis for pain relief, instead of opioids or prescription pain medication. Methods: Repeat cross-sectional survey data were used from Wave 1 and Wave 2 of the International Cannabis Policy Study conducted in 2018 and 2019 in Canada and the US. Respondents were recruited through commercial panels, aged 16-65, and had ever tried cannabis (N = 44,119). Weighted binary logistic regression models examined the association between the legal status of recreational cannabis and cannabis use for pain relief instead of opioids or prescription pain medication (n = 15,092). Results: Between 14-33% of cannabis consumers in Canada and the US reported using cannabis to manage headaches or pain. Of these consumers, 79% and 78% respondents in Canada; 80% and 83% in US illegal states; and 83% and 84% in US legal states, in 2018 and 2019, respectively, reported cannabis use for pain relief instead of opioids or prescription pain medication. There was little evidence of an association between the legal status of recreational cannabis and cannabis use for pain relief instead of opioids or prescription pain medication, among Canadian (AOR = 0.98, 95% CI: 0.78, 1.22) and US respondents (AOR = 1.11, 95% CI: 0.96, 1.28). Conclusions: Although substitution of cannabis for opioids or prescription pain medication is common among those who use cannabis for pain, there does not seem to be a significant difference according to cannabis legality. Future research should examine cannabis and opioid substitution using different research designs and time frames.
Collapse
Affiliation(s)
- Elle Wadsworth
- School of Public Health Sciences, University of Waterloo, Waterloo, Canada
| | - Lindsey A Hines
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK
| | - David Hammond
- School of Public Health Sciences, University of Waterloo, Waterloo, Canada
| |
Collapse
|
30
|
Pritchett CE, Flynn H, Wang Y, Polston JE. Medical Cannabis Patients Report Improvements in Health Functioning and Reductions in Opiate Use. Subst Use Misuse 2022; 57:1883-1892. [PMID: 36168127 DOI: 10.1080/10826084.2022.2107673] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Purpose: Opioid use rates have dropped as North American patients gain access to medical cannabis, indicating a harm reduction role, yet health outcomes remain mostly unexplored. This study presents self-reported medical cannabis use, perceptions of health functioning, and changes in opioid pain medication use in Florida medical cannabis patients.Methods: Patients (n = 2,183) recruited from medical dispensaries across Florida completed a 66-item cross-sectional survey that included demographic, health, and medication usage items, along with items from the Medical Outcomes Survey (SF-36) to assess health functioning before and after cannabis initiation.Results: Most participants were between the ages of 20 and 70 years of age (95%), over 54% were female, 47% were employed, and most (85%) were white. Commonly reported ailment groups were Pain and Mental Health combined (47.92%), Mental Health (28.86%) or Pain (9.07%). Health domains of bodily pain, physical functioning, and social functioning improved while limitations due to physical and emotional problems were unchanged. Most patients rated medical cannabis as being important to their quality of life. Many (60.98%) reported using pain medications prior to medical cannabis, 93.36% of these reported a change in pain medication after medical cannabis. The majority of participants (79%) reported either cessation or reduction in pain medication use following initiation of medical cannabis and 11.47% described improved functioning.Conclusions: The findings suggest that some medical cannabis patients decreased opioid use without harming quality of life or health functioning, soon after the legalization of medical cannabis. The public health implications of medical cannabis as an alternative pain medication are discussed.
Collapse
Affiliation(s)
| | - Heather Flynn
- Department of Behavioral Sciences and Social Medicine, Florida State University College of Medicine, Tallahassee, Florida, USA
| | - Yuxia Wang
- Department of Behavioral Sciences and Social Medicine, Florida State University College of Medicine, Tallahassee, Florida, USA
| | | |
Collapse
|
31
|
Moallef S, Nosova E, Nolan S, Fairbairn N, Loh J, Hayashi K, Milloy MJ. Prevalence and longitudinal correlates of recent exposure to fentanyl among HIV-positive people who use unregulated drugs during a community-wide overdose crisis. AIDS Care 2021; 33:1560-1568. [PMID: 33764814 PMCID: PMC8463637 DOI: 10.1080/09540121.2021.1874272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 01/05/2021] [Indexed: 10/21/2022]
Abstract
The United States and Canada are experiencing an opioid overdose crisis driven largely by exposure to fentanyl (a potent synthetic opioid), with little known about fentanyl exposure among HIV-positive people who use unregulated drugs (PWUD). We sought to estimate the prevalence and correlates of fentanyl exposure among a community-recruited sample derived from a prospective cohort study of HIV-positive PWUD in Vancouver, Canada. Generalized linear mixed-effects analyses were used to identify longitudinal factors associated with a fentanyl-positive urine drug screen test. Between June 2016-November 2017, 456 participants were recruited and contributed 1007 observations. At baseline, 96% of participants were ART-exposed, 72% had an HIV viral load (VL) <50 copies/mL and 21% had a fentanyl-positive test. Longitudinally, fentanyl-positive tests were characterized by: younger participant age (Adjusted Odds Ratio [AOR] = 0.45), recent non-fatal overdose (AOR = 2.30), engagement in opioid agonist therapy (AOR = 1.91), and at least daily heroin injection (AOR = 11.27). CD4+ cell count was negatively associated with fentanyl urine positivity (AOR = 0.92) (all p < 0.05). We identified several risk factors for overdose linked to fentanyl exposure among this sample, although no link with HIV treatment engagement or detectable HIV VL. Innovative strategies are needed to reduce the harmful effects of the contaminated unregulated drug supply experienced by PWUD.
Collapse
Affiliation(s)
- Soroush Moallef
- British Columbia Centre on Substance Use, St. Paul's Hospital, Vancouver, BC, Canada
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Ekaterina Nosova
- British Columbia Centre on Substance Use, St. Paul's Hospital, Vancouver, BC, Canada
- Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Seonaid Nolan
- British Columbia Centre on Substance Use, St. Paul's Hospital, Vancouver, BC, Canada
- Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Nadia Fairbairn
- British Columbia Centre on Substance Use, St. Paul's Hospital, Vancouver, BC, Canada
- Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jane Loh
- British Columbia Centre on Substance Use, St. Paul's Hospital, Vancouver, BC, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Kanna Hayashi
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - M-J Milloy
- British Columbia Centre on Substance Use, St. Paul's Hospital, Vancouver, BC, Canada
- Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
32
|
Chayama KL, Valleriani J, Ng C, Haines-Saah R, Capler R, Milloy MJ, Small W, McNeil R. The role of cannabis in pain management among people living with HIV who use drugs: A qualitative study. Drug Alcohol Rev 2021; 40:1325-1333. [PMID: 33843074 PMCID: PMC8580359 DOI: 10.1111/dar.13294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/23/2021] [Accepted: 03/23/2021] [Indexed: 01/08/2023]
Abstract
INTRODUCTION People living with HIV who use drugs commonly experience chronic pain and often use illicit opioids to manage pain. Recent research suggests people living with HIV use cannabis for pain relief, including as an adjunct to opioids. This underscores the need to better understand how people living with HIV who use drugs use cannabis for pain management, particularly as cannabis markets are undergoing changes due to cannabis legalisation. METHODS From September 2018 to April 2019, we conducted in-depth interviews with 25 people living with HIV who use drugs in Vancouver, Canada to examine experiences using cannabis to manage pain. Interviews were audio-recorded, transcribed and coded. Themes were identified using inductive and deductive approaches. RESULTS Most participants reported that using cannabis for pain management helped improve daily functioning. Some participants turned to cannabis as a supplement or periodic alternative to prescription and illicit drugs (e.g. benzodiazepines, opioids) used to manage pain and related symptoms. Nonetheless, participants' access to legal cannabis was limited and most continued to obtain cannabis from illicit sources, which provided access to cannabis that was free or deemed to be affordable. DISCUSSION AND CONCLUSIONS Cannabis use may lead to reduced use of prescription and illicit drugs for pain management among some people living with HIV who use drugs. Our findings add to growing calls for additional research on the role of cannabis in pain management and harm reduction, and suggest the need for concrete efforts to ensure equitable access to cannabis.
Collapse
Affiliation(s)
- Koharu Loulou Chayama
- British Columbia Centre on Substance Use, Vancouver, Canada
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Jenna Valleriani
- British Columbia Centre on Substance Use, Vancouver, Canada
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Cara Ng
- British Columbia Centre on Substance Use, Vancouver, Canada
| | - Rebecca Haines-Saah
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Rielle Capler
- British Columbia Centre on Substance Use, Vancouver, Canada
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - M.-J. Milloy
- British Columbia Centre on Substance Use, Vancouver, Canada
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Will Small
- British Columbia Centre on Substance Use, Vancouver, Canada
- Faculty of Health Sciences, Simon Fraser University, Burnaby, Canada
| | - Ryan McNeil
- British Columbia Centre on Substance Use, Vancouver, Canada
- Department of Internal Medicine, Yale School of Medicine, New Haven, USA
- Program in Addiction Medicine, Yale School of Medicine, New Haven, USA
| |
Collapse
|
33
|
Shrestha S, Stopka TJ, Hughto JMW, Case P, Palacios WR, Reilly B, Green TC. Prevalence and correlates of non-fatal overdose among people who use drugs: findings from rapid assessments in Massachusetts, 2017-2019. Harm Reduct J 2021; 18:93. [PMID: 34461922 PMCID: PMC8404353 DOI: 10.1186/s12954-021-00538-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/16/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND People who experience non-fatal overdose (NFOD) are at high risk of subsequent overdose. With unprecedented increases in fentanyl in the US drug supply, many Massachusetts (MA) communities have seen a surge in opioid-related overdoses. The objective of this study was to determine factors associated with lifetime and past year NFOD in at-risk MA communities. METHODS We conducted multiple rapid assessments among people who use drugs (PWUD) in eight MA communities using non-probability sampling (purposive, chain referral, respondent-driven) methods. We collected sociodemographic, substance use, overdose history, substance use treatment, and harm reduction services utilization data. We examined the prevalence of NFOD (lifetime and past year) and identified factors associated with NFOD through multivariable logistic regression analyses in a subset of 469 study participants between 2017 and 2019. RESULTS The prevalence of lifetime and last year non-fatal opioid overdose was 62.5% and 36.9%, respectively. Many of the study participants reported heroin (64%) and fentanyl (45%) use during the 30 days preceding the survey. Nonprescription buprenorphine and fentanyl use were independently associated with higher odds of lifetime NFOD, while marijuana use was associated with lower odds of lifetime NFOD (p < 0.05). Injection as the route of administration, benzodiazepine, nonprescription buprenorphine, heroin, and fentanyl use were independently associated with higher odds, while methadone use was associated with lower odds of past year NFOD (p < 0.05). CONCLUSION We documented a high prevalence of past year and lifetime NFOD among PWUD in MA. Our findings provide indicators that can help inform interventions to prevent overdoses among PWUD, including overdose prevention, medication treatment, and naloxone distribution.
Collapse
Affiliation(s)
- Shikhar Shrestha
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - Thomas J Stopka
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - Jaclyn M W Hughto
- Departments of Behavioral and Social Sciences and Epidemiology, Brown University School of Public Health, Center for Health Promotion and Health Equity, Brown University, Providence, RI, USA
| | - Patricia Case
- Bouvé College of Health Sciences, Northeastern University, Boston, MA, USA
| | - Wilson R Palacios
- School of Criminology and Justice Studies, University of Massachusetts, Lowell, MA, USA
| | - Brittni Reilly
- Massachusetts Department of Public Health, Bureau of Substance Addiction Services, Boston, MA, USA
| | - Traci C Green
- Opioid Policy Research Collaborative, Heller School for Social Policy and Management, Brandeis University, Waltham, MA, USA.
| |
Collapse
|
34
|
Sihota A, Smith BK, Ahmed S, Bell A, Blain A, Clarke H, Cooper ZD, Cyr C, Daeninck P, Deshpande A, Ethans K, Flusk D, Le Foll B, Milloy M, Moulin DE, Naidoo V, Ong M, Perez J, Rod K, Sealey R, Sulak D, Walsh Z, O’Connell C. Consensus-based recommendations for titrating cannabinoids and tapering opioids for chronic pain control. Int J Clin Pract 2021; 75:e13871. [PMID: 33249713 PMCID: PMC8365704 DOI: 10.1111/ijcp.13871] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/24/2020] [Accepted: 11/20/2020] [Indexed: 12/11/2022] Open
Abstract
AIMS Opioid misuse and overuse have contributed to a widespread overdose crisis and many patients and physicians are considering medical cannabis to support opioid tapering and chronic pain control. Using a five-step modified Delphi process, we aimed to develop consensus-based recommendations on: 1) when and how to safely initiate and titrate cannabinoids in the presence of opioids, 2) when and how to safely taper opioids in the presence of cannabinoids and 3) how to monitor patients and evaluate outcomes when treating with opioids and cannabinoids. RESULTS In patients with chronic pain taking opioids not reaching treatment goals, there was consensus that cannabinoids may be considered for patients experiencing or displaying opioid-related complications, despite psychological or physical interventions. There was consensus observed to initiate with a cannabidiol (CBD)-predominant oral extract in the daytime and consider adding tetrahydrocannabinol (THC). When adding THC, start with 0.5-3 mg, and increase by 1-2 mg once or twice weekly up to 30-40 mg/day. Initiate opioid tapering when the patient reports a minor/major improvement in function, seeks less as-needed medication to control pain and/or the cannabis dose has been optimised. The opioid tapering schedule may be 5%-10% of the morphine equivalent dose (MED) every 1 to 4 weeks. Clinical success could be defined by an improvement in function/quality of life, a ≥30% reduction in pain intensity, a ≥25% reduction in opioid dose, a reduction in opioid dose to <90 mg MED and/or reduction in opioid-related adverse events. CONCLUSIONS This five-stage modified Delphi process led to the development of consensus-based recommendations surrounding the safe introduction and titration of cannabinoids in concert with tapering opioids.
Collapse
Affiliation(s)
- Aaron Sihota
- Faculty of Pharmaceutical SciencesUniversity of British ColumbiaVancouverBCCanada
| | | | - Sana‐Ara Ahmed
- Medical Director, Anesthesiology and Interventional Chronic PainAhmed Institute for Pain and Cannabinoid ResearchCalgaryABCanada
| | - Alan Bell
- Department of Family and Community MedicineUniversity of TorontoTorontoONCanada
| | - Allison Blain
- Department of AnesthesiaMichael G DeGroote Pain ClinicHamilton Health SciencesMcMaster UniversityHamiltonONCanada
| | - Hance Clarke
- Department of Anesthesia and Pain MedicineToronto General HospitalUniversity Health NetworkUniversity of TorontoTorontoONCanada
| | - Ziva D. Cooper
- Department of Psychiatry and Biobehavioral ScienceUCLA Cannabis Research InitiativeJane and Terry Semel Institute for Neuroscience and Human Behavior University of CaliforniaLos AngelesCAUSA
| | - Claude Cyr
- Department of Family MedicineMcGill UniversityMontrealQCCanada
| | - Paul Daeninck
- Max Rady College of MedicineRady Faculty of Health SciencesUniversity of Manitoba, and CancerCare ManitobaWinnipegMBCanada
| | - Amol Deshpande
- Comprehensive Interdisciplinary Pain ProgramDivision of Physical MedicineToronto Rehabilitation InstituteTorontoONCanada
| | - Karen Ethans
- Department of MedicineSection of Physical Medicine and RehabilitationUniversity of ManitobaWinnipegMBCanada
| | - David Flusk
- Faculty of MedicineMemorial University of NewfoundlandSt John’s NLCanada
| | - Bernard Le Foll
- Translational Addiction Research LaboratoryCentre for Addiction and Mental HealthTorontoONCanada
- Alcohol Research and Treatment ClinicAcute Care ProgramCentre for Addiction and Mental HealthTorontoONCanada
- Campbell Family Mental Health Research InstituteCentre for Addiction and Mental HealthTorontoONCanada
- Department of Pharmacology and ToxicologyUniversity of TorontoTorontoONCanada
- Department of PsychiatryUniversity of TorontoTorontoONCanada
- Institute of Medical SciencesUniversity of TorontoTorontoONCanada
- British Columbia Centre on Substance UseVancouverBCCanada
| | - M‐J Milloy
- British Columbia Centre on Substance UseVancouverBCCanada
- Department of MedicineUniversity of British ColumbiaVancouverBCCanada
| | - Dwight E. Moulin
- Departments of Clinical Neurological Sciences and OncologyEarl Russell Chair in Pain MedicineWestern UniversityLondonONCanada
| | | | - May Ong
- Department of MedicineUniversity of British ColumbiaVancouverBCCanada
| | - Jordi Perez
- Department of AnesthesiaMcGill UniversityMontrealQCCanada
| | - Kevin Rod
- FCFP Director Toronto Poly ClinicLecturer DFCM University of TorontoTorontoONCanada
| | | | | | - Zachary Walsh
- Department of PsychologyUniversity of British ColumbiaVancouverBCCanada
| | - Colleen O’Connell
- Department of Physical Medicine and RehabilitationStan Cassidy Centre for RehabilitationFrederictonNBCanada
| |
Collapse
|
35
|
Abstract
In this review, the state of the art for compounds affecting the endocannabinoid (eCB) system is described with a focus on the treatment of pain. Amongst directly acting CB receptor ligands, clinical experience with ∆9 -tetrahydracannabinol and medical cannabis in chronic non-cancer pain indicates that there are differences between the benefits perceived by patients and the at best modest effect seen in meta-analyses of randomized controlled trials. The reason for this difference is not known but may involve differences in the type of patients that are recruited, the study conditions that are chosen and the degree to which biases such as reporting bias are operative. Other directly acting CB receptor ligands such as biased agonists and allosteric receptor modulators have not yet reached the clinic. Amongst indirectly acting compounds targeting the enzymes responsible for the synthesis and catabolism of the eCBs anandamide and 2-arachidonoylglycerol, fatty acid amide hydrolase (FAAH) inhibitors have been investigated clinically but were per se not useful for the treatment of pain, although they may be useful for the treatment of post-traumatic stress disorder and cannabis use disorder. Dual-acting compounds targeting this enzyme and other targets such as cyclooxygenase-2 or transient potential vanilloid receptor 1 may be a way forward for the treatment of pain.
Collapse
Affiliation(s)
- C J Fowler
- From the, Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| |
Collapse
|
36
|
Abstract
This paper is the forty-second consecutive installment of the annual anthological review of research concerning the endogenous opioid system, summarizing articles published during 2019 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides and receptors as well as effects of opioid/opiate agonists and antagonists. The review is subdivided into the following specific topics: molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors (1), the roles of these opioid peptides and receptors in pain and analgesia in animals (2) and humans (3), opioid-sensitive and opioid-insensitive effects of nonopioid analgesics (4), opioid peptide and receptor involvement in tolerance and dependence (5), stress and social status (6), learning and memory (7), eating and drinking (8), drug abuse and alcohol (9), sexual activity and hormones, pregnancy, development and endocrinology (10), mental illness and mood (11), seizures and neurologic disorders (12), electrical-related activity and neurophysiology (13), general activity and locomotion (14), gastrointestinal, renal and hepatic functions (15), cardiovascular responses (16), respiration and thermoregulation (17), and immunological responses (18).
Collapse
Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, 65-30 Kissena Blvd., Flushing, NY, 11367, United States.
| |
Collapse
|
37
|
Slawek DE. People living with HIV and the emerging field of chronic pain-what is known about epidemiology, etiology, and management. Curr HIV/AIDS Rep 2021; 18:436-442. [PMID: 34046859 DOI: 10.1007/s11904-021-00563-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE OF REVIEW Chronic pain is common in people living with HIV (PLWH). It causes significant disability and poor HIV outcomes. Despite this, little is understood about its etiology and management. RECENT FINDINGS Recent studies suggest that chronic pain in PLWH is caused by inflammation that persists despite viral load suppression. This coupled with central sensitization and psychosocial factors leads to chronic pain that is difficult to manage. PLWH with chronic pain often feel that their pain is incompletely treated, and yet there are few evidence-based options for the management of chronic pain in PLWH. Recent studies suggest that an approach pairing pharmacotherapy and nonpharmacologic therapy may address the complex nature of chronic in PLWH. Chronic pain in PLWH is common yet poorly understood. Further research is needed in order to better understand the etiology of chronic pain and its optimal management.
Collapse
Affiliation(s)
- Deepika E Slawek
- Department of Medicine, Montefiore Health System & Albert Einstein College of Medicine, Bronx, NY, USA.
| |
Collapse
|
38
|
Reddon H, Milloy MJ, Wood E, Nosova E, Kerr T, DeBeck K. High-intensity cannabis use and hospitalization: a prospective cohort study of street-involved youth in Vancouver, Canada. Harm Reduct J 2021; 18:53. [PMID: 34001159 PMCID: PMC8130127 DOI: 10.1186/s12954-021-00501-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 05/09/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is concern that cannabis use negatively affects vulnerable groups such as youth; however, the relationship between cannabis use and health care utilization has not been well characterized in this population. We longitudinally evaluated the association between daily cannabis use and hospitalization among a prospective cohort of street-involved youth. METHODS Data were collected from the At-Risk Youth Study (ARYS) in Vancouver, Canada, from September 2005 to May 2015. Participants were interviewed semi-annually and multivariable generalized estimating equation (GEE) logistic regression was used to examine the relationship between daily cannabis use and hospitalization. RESULTS A total of 1216 participants (31.2% female) were included in this analysis, and 373 (30.7%) individuals reported hospitalization at some point during the study period. In a multivariable GEE analysis, daily cannabis use was not significantly associated with hospitalization (Adjusted Odds Ratio [AOR] = 1.17, 95% Confidence interval [CI] = 0.84, 1.65). We did observe a significant interaction between daily cannabis use and sex (AOR = 0.51, 95% CI = 0.34, 0.77), whereby cannabis use was associated with a decreased odds of hospitalization among males (AOR = 0.60, 95% CI = 0.47, 0.78), yet was not significantly associated with hospitalization among females (AOR = 1.19, 95% CI = 0.84, 1.67). CONCLUSIONS The finding that daily cannabis use was not associated with hospitalization among street-involved youth is encouraging given the high rates of cannabis use in this population and the expansion of cannabis legalization and regulation. Future studies, however, are warranted to monitor possible changes in the consequences of cannabis use as cannabis legalization and regulation increase internationally.
Collapse
Affiliation(s)
- Hudson Reddon
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
- CIHR Canadian HIV Trials Network, 588-1081 Burrard Street, Vancouver, BC, V6B 3E6, Canada
| | - M-J Milloy
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, ,Vancouver, BC, V6Z 1Y6, Canada
| | - Evan Wood
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, ,Vancouver, BC, V6Z 1Y6, Canada
| | - Ekaterina Nosova
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
| | - Thomas Kerr
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada
- Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, ,Vancouver, BC, V6Z 1Y6, Canada
| | - Kora DeBeck
- BC Centre on Substance Use, University of British Columbia, 400-1045 Howe St, Vancouver, BC, V6Z 2A9, Canada.
- School of Public Policy, SFU Harbour Centre, Simon Fraser University, 515 West Hastings Street, Vancouver, BC, V6B 5K3, Canada.
| |
Collapse
|
39
|
Gorfinkel LR, Stohl M, Greenstein E, Aharonovich E, Olfson M, Hasin D. Is Cannabis being used as a substitute for non-medical opioids by adults with problem substance use in the United States? A within-person analysis. Addiction 2021; 116:1113-1121. [PMID: 33029914 PMCID: PMC8026758 DOI: 10.1111/add.15228] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/27/2020] [Accepted: 08/11/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Ecological studies have suggested that Cannabis legalization might have led to a decrease in opioid overdose deaths. Such studies do not provide information about whether individuals are substituting Cannabis for opioids at different points in time. The current study assessed the magnitude of the daily association between Cannabis and opioid use in individual adults with and without pain who use non-medical opioids. DESIGN Prospective cohort study. SETTING The greater New York area and a suburban inpatient addiction program. PARTICIPANTS Adults with problem substance use who use non-medical opioids, recruited from May 2016-June 2019. The analytical sample included 13 271 days of observation among 211 participants (64% male, 41% white, 78% unmarried, 80% unemployed, mean age 43 years). MEASUREMENTS Participants completed interviewer- and self-administered computerized surveys, and then responded to an interactive voice response (IVR) system daily for the following 90 days. The main exposures, Cannabis use and pain, were defined as responding affirmatively to the IVR question: 'Did you use Cannabis yesterday?' and endorsing moderate or severe pain at baseline, respectively. The main outcome, non-medical or illicit opioid use during 90-day follow-up, was defined as responding affirmatively to IVR question: 'Did you use heroin yesterday?' or 'Did you use prescription opioids more than prescribed or without a prescription yesterday?'. FINDINGS The mean IVR completion rate was 70%. The unadjusted odds ratio (aOR) indicating same-day use of Cannabis and opioids was 2.00 [95% confidence interval (CI) = 1.54-2.59]. Controlling for demographic characteristics, recruitment method, opioid types at baseline and pain, the aOR was 1.86 (95% CI = 1.44-2.41). A test of interaction between pain and Cannabis use to determine if the association of Cannabis with opioid use differed between people with moderate-to-severe pain and less-than-moderate pain was inconclusive. CONCLUSIONS Among US adults with problem substance use who use non-medical opioids, the odds of opioid use appear to be approximately doubled on days when Cannabis is used. This relationship does not appear to differ between people with moderate or more severe pain versus less than moderate pain, suggesting that Cannabis is not being used as a substitute for illegal opioids.
Collapse
Affiliation(s)
- Lauren R. Gorfinkel
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
- New York State Psychiatric Institute, New York, NY, USA
| | - Malki Stohl
- New York State Psychiatric Institute, New York, NY, USA
| | | | - Efrat Aharonovich
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Mark Olfson
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
- New York State Psychiatric Institute, New York, NY, USA
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Deborah Hasin
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
- New York State Psychiatric Institute, New York, NY, USA
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| |
Collapse
|
40
|
Coveler AL, Mizrahi J, Eastman B, Apisarnthanarax SJ, Dalal S, McNearney T, Pant S. Pancreas Cancer-Associated Pain Management. Oncologist 2021; 26:e971-e982. [PMID: 33885205 PMCID: PMC8176967 DOI: 10.1002/onco.13796] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 04/02/2021] [Indexed: 12/12/2022] Open
Abstract
Pain is highly prevalent in patients with pancreas cancer and contributes to the morbidity of the disease. Pain may be due to pancreatic enzyme insufficiency, obstruction, and/or a direct mass effect on nerves in the celiac plexus. Proper supportive care to decrease pain is an important aspect of the overall management of these patients. There are limited data specific to the management of pain caused by pancreatic cancer. Here we review the literature and offer recommendations regarding multiple modalities available to treat pain in these patients. The dissemination and adoption of these best supportive care practices can improve quantity and quality of life for patients with pancreatic cancer. IMPLICATIONS FOR PRACTICE: Pain management is important to improve the quality of life and survival of a patient with cancer. The pathophysiology of pain in pancreas cancer is complex and multifactorial. Despite tumor response to chemotherapy, a sizeable percentage of patients are at risk for ongoing cancer-related pain and its comorbid consequences. Accordingly, the management of pain in patients with pancreas cancer can be challenging and often requires a multifaceted approach.
Collapse
Affiliation(s)
- Andrew L Coveler
- Department of Medical Oncology, University of Washington, Seattle, Washington, USA
| | - Jonathan Mizrahi
- Department of Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Bory Eastman
- Department of Radiation Oncology, University of Washington, Seattle, Washington, USA
| | | | - Shalini Dalal
- Department of Palliative, Rehabilitation and Integrative Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Shubham Pant
- Department of Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | |
Collapse
|
41
|
Le Foll B. Opioid-sparing effects of cannabinoids: Myth or reality? Prog Neuropsychopharmacol Biol Psychiatry 2021; 106:110065. [PMID: 32828853 DOI: 10.1016/j.pnpbp.2020.110065] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 07/09/2020] [Accepted: 08/05/2020] [Indexed: 12/15/2022]
Abstract
A converging line of evidence is indicating that cannabinoids may have an opioid-sparing effect. This property, well validated in preclinical studies, allow when both drugs are co-administered to reduce the dose of opioids without loss of analgesic effects. A meta-analysis of pre-clinical studies indicated in 2017 that the median effective dose (ED50) of morphine administered in combination with delta-9-tetrahydrocannabinol (delta-9-THC) is 3.6 times lower than the ED50 of morphine alone (Nielsen et al., 2017). However, very few studies have been conducted in humans to validate this effect. This narrative review provides an update on whether or not cannabinoid drugs can be used to produce an opioid sparing effect. For this, various lines of evidence ranging from preclinical, epidemiological and human studies will be summarized. Overall, this review indicates that the preclinical results are strongly and consistently supportive of the presence of an opioid sparing effect of cannabinoid drugs. However, to date the clinical studies have been mostly negative; and, the evidence collected in humans so far is so limited that it is premature to conclude. Therefore, prospective high quality controlled clinical trials are still required to validate this. Priorities for future research are also discussed.
Collapse
Affiliation(s)
- Bernard Le Foll
- Translational Addiction Research Laboratory, Centre for Addiction and Mental Health, University of Toronto, Toronto, ON, Canada; Acute Care Program, Centre for Addiction and Mental Health, Toronto, ON, Canada; Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Division of Brain and Therapeutics, University of Toronto, Toronto, ON, Canada.; Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
42
|
Kaftory R, Edel Y, Snast I, Lapidoth M, Mamet R, Elis A, Hodak E, Levi A. Greater disease burden of variegate porphyria than hereditary coproporphyria: An Israeli nationwide study of neurocutaneous porphyrias. Mol Genet Metab Rep 2021; 26:100707. [PMID: 33489763 PMCID: PMC7811049 DOI: 10.1016/j.ymgmr.2021.100707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 11/02/2022] Open
Abstract
Hereditary coproporphyria (HCP) and variegate porphyria (VP) are referred to as neurocutaneous porphyrias (NCP). Data concerning their systemic presentation are limited and no direct attempt of comparison of the two has ever been made. Our aim was to describe the type and frequency of systemic manifestations of NCPs in Israeli patients. A cross-sectional survey was conducted. The study population included all patients with NCP diagnosed at the Israeli National Service for Biochemical Diagnoses of Porphyrias (INSP) between 1988 and 2019. Of the 83 patients with NCP who were alive in 2019, 61 (73%) completed the survey, 40 with VP and 21 with HCP. Systemic symptoms were reported by 63% of the VP group and 62% of the HCP group (p = .96); corresponding rates of cutaneous symptoms were 58% and 5% (p < .001). We found no association between the occurrence of systemic and cutaneous symptoms. Among patients with systemic involvement, abdominal pain was the predominant systemic symptom, found in 64% of the VP group and 69% of the HCP group; Analysis of symptom frequency showed that in 68% of the VP group, systemic symptoms (either abdominal, musculoskeletal or neuropsychiatric) occurred on a daily/weekly basis, whereas the HCP group experienced less than one symptom per week (p < .001). This nationwide study depicts a significantly heavier disease burden in VP patients compared to HCP owing to its more frequent neurovisceral and cutaneous manifestations.
Collapse
Affiliation(s)
- Ran Kaftory
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Yonatan Edel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- National Service for the Biochemical Diagnoses of Porphyrias, Rabin Medical Center – Beilinson Hospital, Petah Tikva 4941492, Israel
- Department of Internal Medicine C, Rabin Medical Center – Beilinson Hospital, Petah Tikva 4941492, Israel
| | - Igor Snast
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- Photodermatosis Service, Division of Dermatology, Rabin Medical Center, Petah Tikva 4941492, Israel
| | - Moshe Lapidoth
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- Photodermatosis Service, Division of Dermatology, Rabin Medical Center, Petah Tikva 4941492, Israel
| | - Rivka Mamet
- National Service for the Biochemical Diagnoses of Porphyrias, Rabin Medical Center – Beilinson Hospital, Petah Tikva 4941492, Israel
| | - Avishay Elis
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- Department of Internal Medicine C, Rabin Medical Center – Beilinson Hospital, Petah Tikva 4941492, Israel
| | - Emmilia Hodak
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- Photodermatosis Service, Division of Dermatology, Rabin Medical Center, Petah Tikva 4941492, Israel
| | - Assi Levi
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
- Photodermatosis Service, Division of Dermatology, Rabin Medical Center, Petah Tikva 4941492, Israel
| |
Collapse
|
43
|
Socías ME, Choi J, Lake S, Wood E, Valleriani J, Hayashi K, Kerr T, Milloy MJ. Cannabis use is associated with reduced risk of exposure to fentanyl among people on opioid agonist therapy during a community-wide overdose crisis. Drug Alcohol Depend 2021; 219:108420. [PMID: 33342591 PMCID: PMC8006801 DOI: 10.1016/j.drugalcdep.2020.108420] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 10/14/2020] [Accepted: 10/31/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND The ongoing opioid overdose crisis is driven largely by exposure to illicitly-manufactured fentanyl. Preliminary observational and experimental research suggests that cannabis could potentially play a role in reducing use of prescription opioids among individuals with chronic pain. However, there is limited data on the effects of cannabis on illicit opioid consumption, particularly fentanyl, especially among individuals on opioid agonist therapy (OAT). We sought to assess the longitudinal association between cannabis use and exposure to fentanyl among people on OAT. METHODS Data were drawn from two community-recruited prospective cohorts of people who use drugs in Vancouver, Canada. We used generalized linear mixed-effects modeling, adjusted by relevant confounders, to investigate the relationship between cannabis use and recent fentanyl exposure (both assessed by urine drug testing) among participants on OAT between 2016 and 2018. RESULTS Among the 819 participants on OAT who contributed 1989 observations over the study period, fentanyl exposure was common. At the baseline interview, fentanyl was detected in a majority of participants (431, 53 %), with lower prevalence among individuals with urine drug tests positive for tetrahydrocannabinol (47 vs. 56 %, p = 0.028). Over all study interviews, cannabis use was independently associated with reduced likelihood of being recently exposed to fentanyl (Adjusted Prevalence Ratio = 0.91, 95 % Confidence Interval: 0.83 - 0.99). CONCLUSIONS Participants on OAT using cannabis had significantly lower risk of being exposed to fentanyl. Our findings reinforce the need for experimental trials to investigate the potential benefits and risks of controlled cannabinoid administration for people on OAT.
Collapse
Affiliation(s)
- M Eugenia Socías
- British Columbia Centre on Substance Use, Vancouver, BC, Canada; Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - JinCheol Choi
- British Columbia Centre on Substance Use, Vancouver, BC, Canada
| | - Stephanie Lake
- British Columbia Centre on Substance Use, Vancouver, BC, Canada
| | - Evan Wood
- British Columbia Centre on Substance Use, Vancouver, BC, Canada; Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | | | - Kanna Hayashi
- British Columbia Centre on Substance Use, Vancouver, BC, Canada; Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Thomas Kerr
- British Columbia Centre on Substance Use, Vancouver, BC, Canada; Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - M-J Milloy
- British Columbia Centre on Substance Use, Vancouver, BC, Canada; Department of Medicine, University of British Columbia, Vancouver, BC, Canada.
| |
Collapse
|
44
|
Ceasar RC, Kral AH, Simpson K, Wenger L, Goldshear JL, Bluthenthal RN. Factors associated with health-related cannabis use intentions among a community sample of people who inject drugs in Los Angeles and San Francisco, CA 2016 to 2018. Drug Alcohol Depend 2021; 219:108421. [PMID: 33301996 PMCID: PMC7856255 DOI: 10.1016/j.drugalcdep.2020.108421] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Cannabis motivations have been studied extensively among patients of medicinal cannabis dispensaries, but less is known about motivations in community samples of opioid-using people who inject drugs. Our objective is to describe cannabis use motivations associated with self-treatment of physical pain, emotional issues, and as an opioid substitute. METHODS Data come from 6-month follow-up interviews with people who inject drugs who participated in a study on the efficacy of an injection initiation prevention intervention in Los Angeles and San Francisco, California from 2016-18. The analytic sample consists of 387 people who inject drugs who reported past-month cannabis use. We developed multivariable logistic regression models by reported cannabis use motivations: physical pain relief, emotional problems, and opioid substitute. RESULTS The most common cannabis use motivations reported by people who inject drugs was to "get high," relieve physical pain and emotional problems, and reduce opioid use. In separate multivariate models, using cannabis for physical pain relief was associated with higher odds of using cannabis as a substitute for opioids; cannabis for emotional problems was associated with being diagnosed with depression; and cannabis as a substitute for opioids was associated with non-prescribed, non-injection methadone use. CONCLUSION People who inject drugs reported using cannabis for health-related motivations. This motivation aligns with health needs and suggests the acceptability of cannabis use for health reasons in this population. Studies to determine the medical effectiveness of cannabis products for these common health and mental health needs among people who inject drugs are needed.
Collapse
Affiliation(s)
- Rachel Carmen Ceasar
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA, 90032, USA.
| | - Alex H Kral
- Behavioral Health Research Division, RTI International, 2150 Shattuck Avenue, Suite 800, Berkeley, CA, 94704, USA
| | - Kelsey Simpson
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA, 90032, USA
| | - Lynn Wenger
- Behavioral Health Research Division, RTI International, 2150 Shattuck Avenue, Suite 800, Berkeley, CA, 94704, USA
| | - Jesse L Goldshear
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA, 90032, USA
| | - Ricky N Bluthenthal
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N. Soto Street, Los Angeles, CA, 90032, USA
| |
Collapse
|
45
|
Affiliation(s)
- Sameer Imtiaz
- Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, 33 Ursula Franklin Street, Toronto, ON, M5S 2S1, Canada
| | - Tara Elton-Marshall
- Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, 33 Ursula Franklin Street, Toronto, ON, M5S 2S1, Canada
| | - Jürgen Rehm
- Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, 33 Ursula Franklin Street, Toronto, ON, M5S 2S1, Canada
| |
Collapse
|
46
|
Wilson M, Klein T, Bindler RJ, Kaplan L. Shared Decision-Making for Patients Using Cannabis for Pain Symptom Management in the United States. Pain Manag Nurs 2020; 22:15-20. [PMID: 33139204 DOI: 10.1016/j.pmn.2020.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/14/2020] [Accepted: 09/17/2020] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Gaps in research evidence and inconsistent policies regarding use of cannabis for pain and associated symptoms result in confusion for healthcare providers and patients. The objective of this review was to synthesize information on cannabis use for pain with legal and policy implications to create a shared decision-making model that can be used to guide patient care interactions. APPROACH Current cannabis policies, state laws, research, and patient care practices related to medical and recreational cannabis in the United States were reviewed, along with best practices in shared decision-making. Reviewed literature was then synthesized to create a model that can be used by registered nurses and others to address cannabis use, where legal, for pain and related symptoms. RESULT AND CONCLUSIONS Cannabis is a legal option for many patients with pain. To minimize harms and optimize benefits, nurses can play a key role when authorized by law in assisting with decision-making surrounding cannabis use.
Collapse
Affiliation(s)
- Marian Wilson
- College of Nursing, Washington State University, Spokane, Washington, USA.
| | - Tracy Klein
- College of Nursing, Washington State University, Vancouver, Washington, USA
| | - Ross J Bindler
- College of Nursing, Washington State University, Spokane, Washington, USA
| | - Louise Kaplan
- College of Nursing, Washington State University, Vancouver, Washington, USA
| |
Collapse
|
47
|
Lake S, St Pierre M. The relationship between cannabis use and patient outcomes in medication-based treatment of opioid use disorder: A systematic review. Clin Psychol Rev 2020; 82:101939. [PMID: 33130527 DOI: 10.1016/j.cpr.2020.101939] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 10/14/2020] [Accepted: 10/20/2020] [Indexed: 10/23/2022]
Abstract
Despite high rates of cannabis use during medication-based treatment of opioid use disorder (MOUD), uncertainty remains around how cannabis influences treatment outcomes. We sought to investigate the relationship between cannabis use during MOUD and a number of patient outcomes. We searched seven databases for original peer-reviewed studies documenting the relationship between cannabis use and at least one primary outcome (opioid use, treatment adherence, or treatment retention) among patients enrolled in methadone-, buprenorphine-, or naltrexone-based therapy for OUD. In total, 41 articles (including 23 methadone, 7 buprenorphine, 6 naltrexone, and 5 mixed modalities) were included in this review. For each primary outcome area, there was a small number of studies that produced findings suggestive of a supportive or detrimental role of concurrent cannabis use, but the majority of studies reported that cannabis use was not statistically significantly associated with the outcome. No studies of naltrexone treatment demonstrated significantly worse outcomes for cannabis users. We identified methodological shortcomings and future research priorities, including exploring the potential role of adjunct cannabis use for improving opioid craving and withdrawal during MOUD. While monitoring for cannabis use may help guide clinicians towards an improved treatment plan, cannabis use is unlikely to independently threaten treatment outcomes.
Collapse
Affiliation(s)
- Stephanie Lake
- British Columbia Centre on Substance Use, 400 - 1045 Howe Street, Vancouver, BC V6Z 2A9, Canada; School of Population and Public Health, University of British Columbia, 2206 East Mall, Vancouver, BC V6T 1Z3, Canada.
| | - Michelle St Pierre
- Department of Psychology, University of British Columbia, 3187 University Way, Kelowna, BC V1V 1V7, Canada
| |
Collapse
|
48
|
Reddon H, DeBeck K, Socias ME, Lake S, Dong H, Hayashi K, Milloy MJ. Frequent Cannabis Use Is Negatively Associated with Frequency of Injection Drug Use Among People Who Inject Drugs in a Canadian Setting. Cannabis Cannabinoid Res 2020; 6:435-445. [PMID: 33998862 DOI: 10.1089/can.2019.0104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objectives: High levels of morbidity and mortality associated with injection drug use continue to represent a significant public health challenge in many settings worldwide. Previous studies have shown an association between cannabis use and decreased risk of some drug-related harms. We sought to evaluate the association between high-intensity cannabis use and the frequency of injection drug use among people who inject drugs (PWID). Methods: The data for this analysis were collected from three prospective cohorts of PWID in Vancouver, Canada, between September 2005 and May 2018. Generalized linear mixed-effects models were used to analyze the association between daily cannabis use and the frequency of injecting illegal drugs (i.e., self-reported average number of injections per month). Results: Among the 2,619 active PWID, the frequency of injection drug use was significantly lower among people who use cannabis daily compared with people who use it less than daily (adjusted odds ratio [AOR]=0.84, 95% confidence interval [CI]: 0.73-0.95). Sub-analyses indicated that this effect was restricted to the frequency of illegal opioid injection (AOR=0.78, 95% CI: 0.68-0.90); the association between daily cannabis use and the frequency of illegal stimulant injection was not significant (AOR=1.08, 95% CI 0.93-1.25). Discussion: The findings from these prospective cohorts suggest that people who use cannabis daily were less likely to report daily injection of illegal drugs compared with people who use it less than daily. These results suggest the potential value of conducting experimental research to test whether controlled administration of cannabinoids impacts the frequency of illegal opioid injection among PWID.
Collapse
Affiliation(s)
- Hudson Reddon
- British Columbia Centre on Substance Use, Vancouver, Canada.,CIHR Canadian HIV Trials Network, Vancouver, Canada
| | - Kora DeBeck
- British Columbia Centre on Substance Use, Vancouver, Canada.,Faculty of Arts and Social Sciences, School of Public Policy, Simon Fraser University, Vancouver, Canada
| | - Maria-Eugenia Socias
- British Columbia Centre on Substance Use, Vancouver, Canada.,Department of Medicine, St. Paul's Hospital, University of British Columbia, Vancouver, Canada
| | - Stephanie Lake
- British Columbia Centre on Substance Use, Vancouver, Canada
| | - Huiru Dong
- British Columbia Centre on Substance Use, Vancouver, Canada
| | - Kanna Hayashi
- British Columbia Centre on Substance Use, Vancouver, Canada.,Faculty of Health Sciences, Centre for Applied Research in Mental Health & Addiction, Simon Fraser University, Vancouver, Canada
| | - Michael-John Milloy
- British Columbia Centre on Substance Use, Vancouver, Canada.,Department of Medicine, St. Paul's Hospital, University of British Columbia, Vancouver, Canada
| |
Collapse
|
49
|
Wallace JE, Kogan LR, Carr ECJ, Hellyer PW. Motivations and expectations for using cannabis products to treat pain in humans and dogs: a mixed methods study. J Cannabis Res 2020; 2:36. [PMID: 33526100 PMCID: PMC7819300 DOI: 10.1186/s42238-020-00045-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 09/25/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Social media and academic literature suggest that more people are using cannabis to treat their own or their dog's chronic pain. This study identifies the reasons people use cannabis products to treat their own pain or their dog's pain and explores whether these products have fulfilled their expectations. METHODS An anonymous, online survey was used to collect quantitative and qualitative self-report data on respondents' perceptions, motivations and expectations about their or their dog's chronic pain and cannabis use. The analyses are based on U.S. adults who reported using cannabis products to treat their own (N = 313) or their dog's (N = 204) chronic pain. Quantitative responses from the two groups were compared using Chi-Square tests and qualitative data were analyzed using a thematic analysis. RESULTS Human patients and dog owners reported similar motivations for using cannabis products to treat chronic pain, with the more popular reasons being that cannabis products are natural, are preferred over conventional medication, are believed to be the best treatment or good treatment option for pain. Similar proportions of human patients and dog owners reported that the use of cannabis products fulfilled their expectations (86% vs. 82% respectively, χ2 (1, 200) = .59, p = .32). The qualitative data revealed that their expectations were met by reducing pain, increasing relaxation, and improving sleep, coping, functionality and overall well being. Additionally, the qualitative data suggests that cannabis products offer a return to normalcy and a restored sense of self to human and dog patients. CONCLUSIONS The results suggest that people choose cannabis products because they are natural and a possible solution to managing chronic pain when conventional medicines have not been effective. Most people report that their expectations regarding pain management are fulfilled by these products. More accurate assessments are vital, however, for understanding both the objective biomedical and subjective socioemotional benefits of cannabis products for effective pain management for human and dog patients. In addition, objective factual information regarding cannabis products for effective pain management in humans and dogs is needed. It is recommended that both physicians and veterinarians work towards feeling more comfortable proactively broaching the subject of cannabis use with additional training and education.
Collapse
Affiliation(s)
- Jean E Wallace
- Department of Sociology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada.
| | - Lori R Kogan
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, 80523, USA
| | - Eloise C J Carr
- Faculty of Nursing, University of Calgary, 2500 University Dr NW, Calgary, AB, T2N 1N4, Canada
| | - Peter W Hellyer
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, 80523, USA
| |
Collapse
|
50
|
Lake S, Socías ME, Milloy MJ. Evidence shows that cannabis has fewer relative harms than opioids. CMAJ 2020; 192:E166-E167. [PMID: 32071110 DOI: 10.1503/cmaj.74120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Stephanie Lake
- PhD candidate and research associate, BC Centre on Substance Use; UBC School of Population and Public Health, Vancouver, BC
| | - M Eugenia Socías
- Assistant professor and research scientist, UBC Department of Medicine; BC Centre on Substance Use, Vancouver, BC
| | - M-J Milloy
- Canopy Growth professor of cannabis science and research scientist, UBC Department of Medicine; BC Centre on Substance Use, Vancouver, BC
| |
Collapse
|