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Ramdin C, Chen E, Nelson LS, Mazer-Amirshahi M. Gabapentinoid prescribing patterns and predictors utilizing neural networks: An analysis across emergency departments Nationwide between 2012 and 2021. Am J Emerg Med 2024; 85:59-64. [PMID: 39236451 DOI: 10.1016/j.ajem.2024.08.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/08/2024] [Accepted: 08/30/2024] [Indexed: 09/07/2024] Open
Abstract
BACKGROUND Gabapentinoids increasingly utilized for neuropathic pain, possibly to curb opioid prescribing. At the same time, data suggest subsequent increases in misuse and overdose of gabapentinoids, often in mixed overdoses. We sought to determine national trends and characteristics of gabapentinoid prescribing, including co-use with opioids, from the emergency department (ED). METHODS This is a retrospective review of the National Hospital Ambulatory Medical Care Survey (NHAMCS) from 2012 to 2021. Our primary outcome was the trend in ED visits in which gabapentinoids were prescribed at discharge. Secondarily, we identified trends in gabapentinoid and opioid co-prescribing and gabapentin and pregabalin prescribing at ED discharge. We examined demographic data and used descriptive statistics, Shapiro Wilke's test, Pearson's Spearman's rho (SR) or Pearson's correlation coefficient (PC) as applicable. Neural networks were used to identify the most important predictors of opioid utilization during the same visit. RESULTS Between 2012 and 2021, there were an estimated 7,242,694 (0.53% of all ED visits) visits in which gabapentinoids were prescribed at ED discharge. Prescriptions increased from a total of 138,479 (0.1%) in 2012 to 893,495 (0.63%) in 2021 (PC: 0.85, p < 0.001). Opioids were co-prescribed in 27.2% of all visits in which gabapentinoids were prescribed, with no change over time (PC: -0.47, p = 0.09). Pregabalin prescription increased linearly over time (PC: 0.64, p = 0.02). The most important predictors of opioid administration or co-prescribing were whether an alternative provider (e.g., consult or nurse practitioner) saw the patient (100%), insurance (94.4%), age (75.9%), and region (75.2%). CONCLUSION Despite an association of misuse and overdose, often associated with opioids, gabapentinoids were increasingly prescribed at ED discharge. While these agents may be safer alternatives to opioids, misuse may be an associated consequence of increased prescribing, which warrants further investigation.
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Affiliation(s)
- Christine Ramdin
- Department of Emergency Medicine, Rutgers New Jersey Medical School, USA.
| | - Emily Chen
- Georgetown University, School of Medicine, USA
| | - Lewis S Nelson
- Department of Emergency Medicine, Rutgers New Jersey Medical School, USA
| | - Maryann Mazer-Amirshahi
- Georgetown University, School of Medicine, USA; Department of Emergency Medicine, MedStar Washington Hospital Center, USA
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Ali R, Van Hout MC, Al-Mahaireh M, Wazaify M. Community pharmacists' experience of gabapentin misuse and abuse: A quantitative study from Jordan. J Ethn Subst Abuse 2024:1-17. [PMID: 38967590 DOI: 10.1080/15332640.2024.2361338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Gabapentin is an anticonvulsant that has an abuse potential. The aim of this study was to investigate the misuse and abuse of gabapentin in Jordan from the perspective of community pharmacists. A cross-sectional survey using a self-reported structured questionnaire was used with a convenience sample of pharmacists employed by various independent and chain community pharmacies. An online technique was used in this study using Google forms. A total of 215 questionnaires were completed, with 200 respondents (93%) reporting awareness of cases of gabapentin abuse in their pharmacies. Less than half of the respondents (n = 94; 43.7%) indicated that gabapentin requests were not accompanied by prescriptions. Almost two-thirds of respondents (63.6%) noticed an increased pattern of gabapentin abuse/misuse during the last 6 months. The study underscores the need for regulatory efforts and pharmacovigilance to manage potential gabapentin abuse, along with pharmacist and patient education at the community pharmacy, regarding potential abuse of gabapentin.
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Affiliation(s)
- Russul Ali
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
| | | | | | - Mayyada Wazaify
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
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Mathieson S, O'Keeffe M, Traeger AC, Ferreira GE, Abdel Shaheed C. Content and sentiment analysis of gabapentinoid-related tweets: An infodemiology study. Drug Alcohol Rev 2024; 43:45-55. [PMID: 36539307 DOI: 10.1111/dar.13590] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/22/2022] [Accepted: 11/30/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION The increasing number of gabapentinoid (pregabalin and gabapentin) harms, including deaths observed across countries is concerning to health-care professionals and policy makers. However, it is unclear if the public shares these concerns. This study aimed to describe posts related to gabapentinoids, conduct a content analysis to identify common themes and describe adverse events or symptoms. METHODS Keywords of 'pregabalin' or 'Lyrica' or 'gabapentin' or 'Neurontin' were used to search for related tweets posted by people in the community between 8 March and 7 May 2021. Eligible tweets included a keyword in the post. We extracted de-identified data which included descriptive data of the total number of posts over time; and data on individual tweets including date, number of re-tweets and post content. Data were exported separately for pregabalin- and gabapentin-related tweets. A 20% random sample was used for the thematic analysis. RESULTS There were 2931 pregabalin-related tweets and 2736 gabapentin-related tweets. Thematic analysis revealed three themes (sharing positive experiences and benefits of taking gabapentinoids, people voicing their negative experiences, and people seeking opinions and sharing information). Positive experiences of gabapentinoids were related to sharing stories and giving advice. This was contrasted to negative experiences including ineffectiveness, withdrawals, side effects and frustration related to cost and insurance coverage. Brain fog was the most common adverse symptom reported. Gabapentinoid-related deaths were only mentioned in three tweets. DISCUSSION The increasing public health concern of gabapentinoid-related deaths was not translated to Twitter discussions.
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Affiliation(s)
- Stephanie Mathieson
- Institute for Musculoskeletal Health, The University of Sydney and Sydney Local Health District, Sydney, Australia
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Mary O'Keeffe
- Institute for Musculoskeletal Health, The University of Sydney and Sydney Local Health District, Sydney, Australia
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Adrian C Traeger
- Institute for Musculoskeletal Health, The University of Sydney and Sydney Local Health District, Sydney, Australia
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Giovanni E Ferreira
- Institute for Musculoskeletal Health, The University of Sydney and Sydney Local Health District, Sydney, Australia
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Christina Abdel Shaheed
- Institute for Musculoskeletal Health, The University of Sydney and Sydney Local Health District, Sydney, Australia
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
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Einhorn LM, Hudon J, Ingelmo P. The Pharmacological Treatment of Neuropathic Pain in Children. Curr Neuropharmacol 2024; 22:38-52. [PMID: 37539933 PMCID: PMC10716891 DOI: 10.2174/1570159x21666230804110858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/22/2023] [Accepted: 03/12/2023] [Indexed: 08/05/2023] Open
Abstract
The International Association for the Study of Pain (IASP) defines neuropathic pain as pain caused by a lesion or disease of the somatosensory nervous system. It is characterized as a clinical condition in which diagnostic studies reveal an underlying cause of an abnormality in the peripheral or central nervous system. Many common causes of neuropathic pain in adults are rare in children. The purpose of this focused narrative review is, to 1) provide an overview of neuropathic pain in children, 2) highlight unique considerations related to the diagnosis and mechanisms of neuropathic pain in children, and 3) perform a comprehensive analysis of the pharmacological treatments available. We emphasize that data for routine use of pharmacological agents in children with neuropathic pain are largely inferred from adult literature with little research performed on pediatric populations, yet have clear evidence of harms to pediatric patients. Based on these findings, we propose risk mitigation strategies such as utilizing topical treatments whenever possible, assessing pain phenotyping to guide drug class choice, and considering pharmaceuticals in the broader context of the multidisciplinary treatment of pediatric pain. Furthermore, we highlight important directions for future research on pediatric neuropathic pain treatment.
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Affiliation(s)
- Lisa M Einhorn
- Department of Anesthesiology, Pediatric Division, Duke University School of Medicine, Durham, North Carolina, United States
| | - Jonathan Hudon
- Division of Secondary Care, Department of Family Medicine, McGill University Health Centre, Montreal, Qc, Canada
- Palliative Care Division, Jewish General Hospital, Montreal, Qc, Canada
- Alan Edwards Pain Management Unit, Montreal General Hospital, McGill University Health Center, Montreal, Qc, Canada
- Alan Edwards Centre for Pain Research, McGill University, Montreal, Canada
- Edwards Family Interdisciplinary Centre for Complex Pain, Montreal Children's Hospital, McGill University Health Center, Montreal, Canada
| | - Pablo Ingelmo
- Alan Edwards Centre for Pain Research, McGill University, Montreal, Canada
- Edwards Family Interdisciplinary Centre for Complex Pain, Montreal Children's Hospital, McGill University Health Center, Montreal, Canada
- Research Institute of the McGill University Health Center, Montreal, Canada
- Department of Pediatric Anesthesia, Montreal Children's Hospital, McGill University Health Center, Montréal, QC, Canada
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Syed O, Jancic P, Fink AB, Knezevic NN. Drug Safety and Suicidality Risk of Chronic Pain Medications. Pharmaceuticals (Basel) 2023; 16:1497. [PMID: 37895968 PMCID: PMC10609967 DOI: 10.3390/ph16101497] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/13/2023] [Accepted: 10/15/2023] [Indexed: 10/29/2023] Open
Abstract
Chronic pain is one of the main leading causes of disability in the world at present. A variety in the symptomatology, intensity and duration of this phenomenon has led to an ever-increasing demand of pharmacological treatment and relief. This demand for medication, ranging from well-known groups, such as antidepressants and benzodiazepines, to more novel drugs, was followed by a rise in safety concerns of such treatment options. The validity, frequency, and diversity of such concerns are discussed in this paper, as well as their possible effect on future prescription practices. A specific caution is provided towards the psychological safety and toll of these medications, regarding suicidality and suicidal ideation. Most significantly, this paper highlights the importance of pharmacovigilance and underscores the necessity of surveillance programs when considering chronic pain medication.
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Affiliation(s)
- Osman Syed
- Advocate Illinois Masonic Medical Center, Department of Anesthesiology, Chicago, IL 60657, USA; (O.S.); (P.J.); (A.B.F.)
- Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, IL 60515, USA
| | - Predrag Jancic
- Advocate Illinois Masonic Medical Center, Department of Anesthesiology, Chicago, IL 60657, USA; (O.S.); (P.J.); (A.B.F.)
| | - Adam B. Fink
- Advocate Illinois Masonic Medical Center, Department of Anesthesiology, Chicago, IL 60657, USA; (O.S.); (P.J.); (A.B.F.)
- Harborview Medical Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98104, USA
| | - Nebojsa Nick Knezevic
- Advocate Illinois Masonic Medical Center, Department of Anesthesiology, Chicago, IL 60657, USA; (O.S.); (P.J.); (A.B.F.)
- Department of Anesthesiology, University of Illinois, Chicago, IL 60612, USA
- Department of Surgery, University of Illinois, Chicago, IL 60612, USA
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Terman SW, Niznik JD, Growdon ME, Gerlach LB, Burke JF. Secular Trends in Central Nervous System-Active Polypharmacy Among Serial Cross-Sections of US Adults, 2009-2020. Drugs Aging 2023; 40:941-951. [PMID: 37695395 PMCID: PMC10629698 DOI: 10.1007/s40266-023-01066-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/27/2023] [Indexed: 09/12/2023]
Abstract
BACKGROUND Data comprehensively examining trends in central nervous system (CNS)-active polypharmacy are limited. The objective of this cross-sectional study was to characterize the composition of and trends in CNS-active medication use in US adults. METHODS We included all participants ≥ 18 years old in the National Health and Nutrition Examination Study (NHANES), 2009-2020. The primary outcome was the percent of adults with CNS-active polypharmacy. This was defined as ≥ 3 medications among antidepressants [tricyclic, selective and serotonin-norepinephrine reuptake inhibitors (SSRIs and SNRIs), opioids, antiepileptics, antipsychotics, benzodiazepines, and nonbenzodiazepine receptor agonists ("Z-drugs")]. Secondary outcomes included prevalence of any CNS-active medication and specific medications and classes over time, and their indications. Percentages were weighted according to NHANES's nationally representative sampling frame. log binomial regressions evaluated the relative risk (RR) for each outcome, comparing the last (2017-2020) versus the first (2010-2011) survey cycle. RESULTS We included 34,189 adults (18.8% at least 65 years old) from five serial cross-sections (survey cycles). The prevalence of CNS-active polypharmacy was 2.1% in 2009-2010 and 2.6% in 2017-2020 [RR 1.18, 95% confidence interval (CI) 0.94-1.47]. The prevalence of CNS-active polypharmacy did not significantly change within any specific age group (e.g., age at least 65 years: RR 1.29, CI 0.74-2.24). The prevalence of any CNS-active medication was 21.0% in 2009 and 24.6% in 2017-2020 (RR] 1.12, 95% CI 1.02-1.25). A substantial increase occurred for antiepileptics (5.1-8.3%), specifically among participants aged 65 years and older (8.3-13.7%). This was largely driven by increasing gabapentin prevalence (1.4-3.6% overall; 3.3-7.9% age 65 years and older). Anticholinergic, SSRIs/SNRIs, antiepileptics, and benzodiazepines were elevated in most cycles for participants at least 65 years old compared with participants less than 65 years, and opioid use was increased in several cycles for older participants as well. Alprazolam was the most common benzodiazepine and third most common medication for anxiety/depression. Gabapentin was the most common CNS-active medication (3.6% of all participants in 2017-2020), followed by sertraline, citalopram, and acetaminophen-hydrocodone (each ~2%). The most common categories were antidepressants (13.7% in 2017-2020), followed by opioids (5.1% in 2017-2020). CONCLUSIONS CNS-active medications are increasingly common, particularly gabapentin, and use of any CNS-active medication increased by 12%. Numerous CNS-active classes also increased in older adults throughout the years. Increasing suboptimal medication use highlight the need for further investigation into causes for potentially inappropriate prescribing, particularly for older adults.
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Affiliation(s)
- Samuel W Terman
- Department of Neurology, University of Michigan, Taubman 1st Floor, Reception C, 1500 E Medical Center Dr, SPC 5316, Ann Arbor, MI, 48109, USA.
| | - Joshua D Niznik
- Division of Geriatric Medicine, Center for Aging and Health, School of Medicine, University of North Carolina At Chapel Hill, Chapel Hill, NC, USA
- Division of Pharmaceutical Outcomes and Policy, Eshelman School of Pharmacy, University of North Carolina At Chapel Hill, Chapel Hill, NC, USA
| | - Matthew E Growdon
- Division of Geriatrics, University of California San Francisco, San Francisco, CA, USA
| | - Lauren B Gerlach
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - James F Burke
- Department of Neurology, The Ohio State University, Columbus, OH, USA
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Goswami S, Ramachandran S, Sharma M, Barnard M. Gabapentin and Opioids Utilization in Patients With Diabetic Neuropathy Enrolled in Medicare (2012-2016): A Cohort Study. J Pharm Pract 2023; 36:1085-1094. [PMID: 35414302 DOI: 10.1177/08971900221087119] [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: 11/15/2022]
Abstract
This retrospective cohort study describes the utilization of opioids and gabapentin among patients with diabetic neuropathy who were gabapentin and opioid naïve, and assesses predictors of concomitant use of opioids and gabapentin. Using Medicare claims data (2012-2016), 22 037 patients were identified, of whom 23.42% (N = 5161) initiated opioids without concomitant gabapentin, 4.56% (N = 1004) initiated gabapentin without concomitant opioids, and 3.87% (N = 852) had concomitant use of gabapentin and opioids 12 months following their index date (date of earliest diagnosis). Concomitant gabapentin and opioid use were more common for lower doses of both drugs and for 15 days or more cumulatively. Compared to individuals aged 65-74, those aged 75-84 (OR: .759; 95% CI: 0.653-.882) or ≥ 85 years (OR: .586, 95% CI: 0.462-.743) had lower odds of concomitant use. People residing in the Northeast had lower odds of concomitant use, compared to those residing in the South (OR: .646 95% CI: 0.535-.779). Females compared to males (OR: 1.185, 95% CI: 1.027-1.367), people with higher Charlson's Comorbidity Index (CCI) scores (OR: 1.085, 95% CI: 1.037-1.135) or those having anxiety (OR: 1.462, 95% CI: 1.131-1.889) had higher odds of concomitant use. Concomitant prescriptions of opioids and gabapentin were more common for longer durations, indicating the need for interventions aimed at minimizing this prescribing practice.
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Affiliation(s)
- Swarnali Goswami
- Department of Pharmacy Administration, The University of Mississippi, University, MS, USA
| | - Sujith Ramachandran
- Department of Pharmacy Administration, The University of Mississippi, University, MS, USA
| | - Manvi Sharma
- Department of Pharmacy Administration, The University of Mississippi, University, MS, USA
| | - Marie Barnard
- Department of Pharmacy Administration, The University of Mississippi, University, MS, USA
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Rissardo JP, Medeiros Araujo de Matos U, Fornari Caprara AL. Gabapentin-Associated Movement Disorders: A Literature Review. MEDICINES (BASEL, SWITZERLAND) 2023; 10:52. [PMID: 37755242 PMCID: PMC10536490 DOI: 10.3390/medicines10090052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Gabapentin (GBP)-induced movement disorders (MDs) are under-recognized adverse drug reactions. They are commonly not discussed with patients, and their sudden occurrence can lead to misdiagnosis. This literature review aims to evaluate the clinical-epidemiological profile, pathological mechanisms, and management of GBP-associated MD. METHODS Two reviewers identified and assessed relevant reports in six databases without language restriction between 1990 and 2023. RESULTS A total of 99 reports of 204 individuals who developed a MD associated with GBP were identified. The MDs encountered were 135 myoclonus, 22 dyskinesias, 7 dystonia, 3 akathisia, 3 stutterings, 1 myokymia, and 1 parkinsonism. The mean and median ages were 54.54 (SD: 17.79) and 57 years (age range: 10-89), respectively. Subjects were predominantly male (53.57%). The mean and median doses of GBP when the MD occurred were 1324.66 (SD: 1117.66) and 1033 mg/daily (GBP dose range: 100-9600), respectively. The mean time from GBP-onset to GBP-associated MD was 4.58 weeks (SD: 8.08). The mean recovery time after MD treatment was 4.17 days (SD: 4.87). The MD management involved GBP discontinuation. A total of 82.5% of the individuals had a full recovery in the follow-up period. CONCLUSIONS Myoclonus (GRADE A) and dyskinesia (GRADE C) were the most common movement disorders associated with GBP.
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Lawal OD, Meador KJ, Hume AL, Wen X. Utilization of Antiseizure Medications in Women of Childbearing Age With Epilepsy and Nonepilepsy Indications: A Retrospective Cohort Study. Neurology 2023; 101:e1083-e1096. [PMID: 37407266 PMCID: PMC10491435 DOI: 10.1212/wnl.0000000000207580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 05/10/2023] [Indexed: 07/07/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Antiseizure medications (ASMs) are among the most commonly prescribed teratogenic drugs in women of childbearing age. Limited data exist on utilization patterns across different indications for therapy and for the newer-generation ASMs in this population. Thus, we assessed the pattern of ASM use in women of childbearing age with epilepsy and nonepilepsy indications (pain and psychiatric disorders). METHODS We conducted a retrospective analysis of deidentified administrative data submitted to the Optum Clinformatics database. Eligible participants included women aged 12-50 years who filled ASMs between year 2011 and 2017. Participants were followed from date of index prescription filled to study end or insurance disenrollment, whichever came first. For the overall cohort and potential therapy indications, we assessed the type and frequency of ASMs filled; proportion of participants on monotherapy, polytherapy, or treatment switching; and duration of continuous use. Trends were characterized using annual percent change from study start to study end. RESULTS Our analysis included 465,131 participants who filled 603,916 distinct ASM prescriptions. At baseline, most of the participants had chronic pain (51.0%) and psychiatric disorders (32.7%), with epilepsy the least common (0.9%). The most frequently dispensed were diazepam (24.3%), lorazepam (20.1%), gabapentin (17.4%), clonazepam (12.7%), topiramate (11.3%), and lamotrigine (4.6%). Significant linear increase in trends were observed with gabapentin (annual percent change [95% CI]: 8.4 [7.3-9.4]; p < 0.001) and levetiracetam (3.4 [0.7-6.2]; p = 0.022) and decreasing trends for diazepam (-3.5 [-2.4 to 4.5]; p < 0.001) and clonazepam (-3.4 [-2.3 to 4.5]; p = 0.001). No significant change in trend was observed with valproate (-0.4 [-2.7 to 1.9]; p = 0.651), while nonlinear changes in trends were observed with lorazepam, topiramate, lamotrigine, and pregabalin. DISCUSSION Decreasing trends were observed with older ASMs in the overall cohort and across the potential indications for therapy. Conversely, increasing trends were seen with the newer ASMs. Considering the risk of teratogenicity associated with the newer medications largely unknown, counseling and education in addition to a careful consideration of the benefits vs potential risks should remain pivotal when prescribing ASMs for women of childbearing age.
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Affiliation(s)
- Oluwadolapo D Lawal
- From the Department of Pharmacy Practice (O.D.L., A.L.H., X.W.), College of Pharmacy, University of Rhode Island, Kingstown; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University School of Medicine, CA
| | - Kimford J Meador
- From the Department of Pharmacy Practice (O.D.L., A.L.H., X.W.), College of Pharmacy, University of Rhode Island, Kingstown; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University School of Medicine, CA
| | - Anne L Hume
- From the Department of Pharmacy Practice (O.D.L., A.L.H., X.W.), College of Pharmacy, University of Rhode Island, Kingstown; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University School of Medicine, CA
| | - Xuerong Wen
- From the Department of Pharmacy Practice (O.D.L., A.L.H., X.W.), College of Pharmacy, University of Rhode Island, Kingstown; and Department of Neurology & Neurological Sciences (K.J.M.), Stanford University School of Medicine, CA.
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Chan AYL, Yuen ASC, Tsai DHT, Lau WCY, Jani YH, Hsia Y, Osborn DPJ, Hayes JF, Besag FMC, Lai ECC, Wei L, Taxis K, Wong ICK, Man KKC. Gabapentinoid consumption in 65 countries and regions from 2008 to 2018: a longitudinal trend study. Nat Commun 2023; 14:5005. [PMID: 37591833 PMCID: PMC10435503 DOI: 10.1038/s41467-023-40637-8] [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: 03/14/2023] [Accepted: 08/02/2023] [Indexed: 08/19/2023] Open
Abstract
Recent studies raised concerns about the increasing use of gabapentinoids in different countries. With their potential for misuse and addiction, understanding the global consumption of gabapentinoids will offer us a platform to examine the need for any interventional policies. This longitudinal trend study utilised pharmaceutical sales data from 65 countries and regions across the world to evaluate the global trends in gabapentinoid consumption between 2008-2018. The multinational average annual percentage change of gabapentinoid consumption was +17.20%, increased from 4.17 defined daily dose per ten thousand inhabitants per day (DDD/TID) in 2008 to 18.26 DDD/TID in 2018. High-income countries had the highest pooled gabapentinoid consumption rate (39.92 DDD/TID) in 2018, which was more than six times higher than the lower-middle income countries (6.11 DDD/TID). The study shows that despite differences in healthcare system and culture, a consistent increase in gabapentinoid consumption is observed worldwide, with high-income countries remaining the largest consumers.
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Affiliation(s)
- Adrienne Y L Chan
- Groningen Research Institute of Pharmacy, Unit of Pharmacotherapy, Epidemiology and Economics, University of Groningen, 72 9700, Groningen, The Netherlands
- Laboratory of Data Discovery for Health (D24H), Hong Kong Science Park, Hong Kong SAR, China
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Research Department of Practice and Policy, School of Pharmacy, University College London, London, WC1H 9JP, UK
| | - Andrew S C Yuen
- Research Department of Practice and Policy, School of Pharmacy, University College London, London, WC1H 9JP, UK
- Centre for Medicines Optimisation Research and Education, University College London Hospitals NHS Foundation Trust, London, NW1 2PG, UK
| | - Daniel H T Tsai
- Centre for Neonatal and Paediatric Infection, St George's University of London, London, SW17 0RE, UK
- School of Pharamcy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wallis C Y Lau
- Laboratory of Data Discovery for Health (D24H), Hong Kong Science Park, Hong Kong SAR, China
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Research Department of Practice and Policy, School of Pharmacy, University College London, London, WC1H 9JP, UK
- Centre for Medicines Optimisation Research and Education, University College London Hospitals NHS Foundation Trust, London, NW1 2PG, UK
| | - Yogini H Jani
- Research Department of Practice and Policy, School of Pharmacy, University College London, London, WC1H 9JP, UK
- Centre for Medicines Optimisation Research and Education, University College London Hospitals NHS Foundation Trust, London, NW1 2PG, UK
| | - Yingfen Hsia
- Centre for Neonatal and Paediatric Infection, St George's University of London, London, SW17 0RE, UK
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - David P J Osborn
- Division of Psychiatry, University College London, London, W1T 7BN, UK
- Camden and Islington NHS Foundation Trust, London, NW1 0PE, UK
| | - Joseph F Hayes
- Division of Psychiatry, University College London, London, W1T 7BN, UK
- Camden and Islington NHS Foundation Trust, London, NW1 0PE, UK
| | - Frank M C Besag
- Research Department of Practice and Policy, School of Pharmacy, University College London, London, WC1H 9JP, UK
- East London Foundation NHS Trust, Bedfordshire, MK40 3JT, UK
| | - Edward C C Lai
- School of Pharamcy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Li Wei
- Research Department of Practice and Policy, School of Pharmacy, University College London, London, WC1H 9JP, UK
- Centre for Medicines Optimisation Research and Education, University College London Hospitals NHS Foundation Trust, London, NW1 2PG, UK
| | - Katja Taxis
- Groningen Research Institute of Pharmacy, Unit of Pharmacotherapy, Epidemiology and Economics, University of Groningen, 72 9700, Groningen, The Netherlands
| | - Ian C K Wong
- Laboratory of Data Discovery for Health (D24H), Hong Kong Science Park, Hong Kong SAR, China.
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
- Research Department of Practice and Policy, School of Pharmacy, University College London, London, WC1H 9JP, UK.
- Centre for Medicines Optimisation Research and Education, University College London Hospitals NHS Foundation Trust, London, NW1 2PG, UK.
- Aston School of Pharmacy, Aston University, Birmingham, B4 7ET, UK.
| | - Kenneth K C Man
- Laboratory of Data Discovery for Health (D24H), Hong Kong Science Park, Hong Kong SAR, China.
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
- Research Department of Practice and Policy, School of Pharmacy, University College London, London, WC1H 9JP, UK.
- Centre for Medicines Optimisation Research and Education, University College London Hospitals NHS Foundation Trust, London, NW1 2PG, UK.
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11
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Vasudeva A, Tripathi R. Pregabalin Dependence and Management in a 55-Year-Old Female with Chronic Low Back Pain. Cureus 2023; 15:e44085. [PMID: 37750123 PMCID: PMC10518057 DOI: 10.7759/cureus.44085] [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] [Accepted: 08/25/2023] [Indexed: 09/27/2023] Open
Abstract
This case report explores the complexities of managing chronic pain and the subsequent development of pregabalin dependence in a 55-year-old female patient with a prior history of vertebral fracture. Over a period of 10 years, the patient relied on a combination of Aceclofenac and pregabalin to alleviate her pain. An alternative treatment approach was implemented, involving adjustments to medication dosages and gradual tapering. Throughout the treatment process, interdisciplinary collaboration played a pivotal role in addressing unexpected symptoms such as facial movements and neck swelling. This case report highlights the significance of recognizing and addressing pregabalin dependence in patients with chronic pain.
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Affiliation(s)
- Abhimanyu Vasudeva
- Physical Medicine and Rehabilitation, All India Institute of Medical Sciences, Gorakhpur, Gorakhpur, IND
| | - Richa Tripathi
- Psychiatry, All India Institute of Medical Sciences, Gorakhpur, Gorakhpur, IND
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12
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Covvey JR, Blakely ML, Singh R, Peckham AM, Evoy KE. Pharmacist, prescriber, and drug policy expert opinions on gabapentinoid misuse. Res Social Adm Pharm 2023; 19:599-609. [PMID: 36503683 DOI: 10.1016/j.sapharm.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/28/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND Gabapentinoids (gabapentin and pregabalin) are widely used in clinical practice, but recent evidence indicates that they carry an increased risk of misuse. As healthcare professionals (HCPs) and policymakers plan different strategies to promote harm reduction, it is important to understand different interested party viewpoints. OBJECTIVE To explore prescriber, pharmacist, and drug policy expert (DPE) awareness, opinions, and experiences regarding gabapentinoid misuse. METHODS A qualitative description study using individual semi-structured virtual interviews was conducted between February and April 2021. Participants included prescribers (physicians, physician assistants [PA], or nurse practitioners [NP]) and pharmacists practicing in outpatient, ambulatory, or community-based healthcare settings; individuals with relevant drug policy expertise were also included. Qualtrics (Provo, Utah) and Zoom (San Jose, California) were used to facilitate quantitative (for initial screening and participant characteristics) and qualitative (interview) data collection. Data were coded and organized into themes in NVivo (QSR International; Burlington, Massachusetts) using thematic analysis steps. RESULTS A total of 43 individuals participated in this study, including 16 (37.2%) pharmacists, 13 (30.2%) physicians, seven (16.3%) NPs, four (9.3%) DPEs, two (4.7%) pharmacist/DPEs, and one (2.3%) PA. Results were organized along four themes: (1) challenges/opportunities in gabapentinoid use; (2) gabapentinoid misuse awareness; (3) solutions to gabapentinoid misuse and (4) contributing barriers in pain management. Participants invoked different opinions in their consideration of gabapentinoid misuse, including the desire for harm reduction, the limitations of the current healthcare and insurance system, the lack of options for pain and substance use disorder treatment, and the influence of patient expectations. CONCLUSIONS Gabapentinoid misuse was commonly framed in comparative fashion to ongoing concerns with opioids, and proposed solutions often focused less on regulatory control and more toward patient and HCP education and an overhaul of the health system approach to substance use and healthcare overall.
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Affiliation(s)
- Jordan R Covvey
- Duquesne University School of Pharmacy, 600 Forbes Ave, Pittsburgh, PA, 15282, USA.
| | - Michelle L Blakely
- University of Wyoming School of Pharmacy, 1000 E University Ave, Laramie, WY, 82071, USA.
| | - Reshmi Singh
- University of Wyoming School of Pharmacy, 1000 E University Ave, Laramie, WY, 82071, USA.
| | - Alyssa M Peckham
- Massachusetts General Hospital, 55 Fruit St, Boston, MA, 02115, USA.
| | - Kirk E Evoy
- The University of Texas at Austin College of Pharmacy, USA; UT Health San Antonio School of Medicine, 7703 Floyd Curl Drive - MC 6220; San Antonio, TX, 78229, USA.
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13
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Jalilian Khave L, Noori M, Rahimi-Movaghar A, Noroozi A. Management of gabapentin misuse in a patient with previous history of opioid use disorder: Case report. Asian J Psychiatr 2023; 80:103322. [PMID: 36423434 DOI: 10.1016/j.ajp.2022.103322] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 11/10/2022] [Indexed: 11/13/2022]
Abstract
We present a 37-year-old male who misuses 12 g of gabapentin per day associated with dependence and withdrawal. He had a previous history of opioid use disorder (OUD) which has been in remission. An outpatient gradual dose reduction regimen was tried and failed and the patient decided to discontinue gabapentin abruptly. Symptomatic medication to relieve gabapentin withdrawal was also unsuccessful and resulted in the reinstatement of OUD. Finally, the patient was stabilized using buprenorphine maintenance treatment and discontinued opioids and gabapentin misuse. The clinical implications and significance of taking regulatory actions to control gabapentin misuse have been discussed.
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Affiliation(s)
- Laya Jalilian Khave
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA.; Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehri Noori
- Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran
| | - Afarin Rahimi-Movaghar
- Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Noroozi
- Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran.
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14
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Antunovic M, Vucinic S, Kotur-Stevuljevic J, Krstic K, Jovic-Stosic J, Kilibarda V, Perkovic-Vukcevic N, Djordjevic S. Rise of Pregabalin Poisoning and Abuse Cases in Serbia: A Ten-Year Retrospective Study. Int J Gen Med 2023; 16:1239-1250. [PMID: 37065979 PMCID: PMC10094400 DOI: 10.2147/ijgm.s405616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 04/03/2023] [Indexed: 04/18/2023] Open
Abstract
Purpose The aim of this study was to analyze data on gabapentinoid-related attendances to the National Poison Control Center of Serbia (NPCC), particularly abuse cases; to estimate its changes and to compare it with trends in national consumption rates of these drugs. We also aimed to analyze the main characteristics of the study population and to investigate the major clinical effects in poisoned patients. Patients and Methods This is a retrospective study of patients admitted to the NPCC for acute poisoning involving gabapentinoids from 1 May 2012 to 1 October 2022. Results There were 357 (95.5%) pregabalin-related and 17 (4.5%) gabapentin-related poisoning cases in 302 patients. Abuse of pregabalin was detected in 27.8% (84/302), while gabapentin abuse occurred in 0.7% (2/302) of all patients. A steady increase in rates of pregabalin poisoning and abuse cases strongly correlated with the increase in overall consumption of this drug, while there were no significant changes in rates of gabapentin consumption, poisoning and abuse rate during the study period. Most patients who abused pregabalin pregabalin were males (84.5%) and the median age was 26 years (range: 15-45 years). Almost 60% of patients who abused pregabalin (48/84) belonged to the migrant population. Co-ingestions occurred in 89.4% of pregabalin-related cases (319/357), resulting in more severe poisoning. The most often co-ingested drugs were benzodiazepines and among them clonazepam was detected in the largest number of cases. Conclusion The poisoning and abuse cases involving pregabalin are on the rise in Serbia, which coincided with an increase in its overall consumption during the study period. Isolated pregabalin ingestions resulted in mild poisoning, although severe symptoms such as coma and bradycardia were recorded. When prescribing pregabalin to patients at risk of abuse caution is needed. Strengthening the measures for dispensing of pregabalin may reduce the risks associated with its abuse.
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Affiliation(s)
- Marko Antunovic
- Medical Faculty Military Medical Academy, University of Defense, Belgrade, Serbia
- National Poison Control Center, Military Medical Academy, Belgrade, Serbia
- Correspondence: Marko Antunovic, National Poison Control Center, Military Medical Academy, Crnotravska 17, Belgrade, 11040, Serbia, Tel +381 11 3608 264, Fax +381 11 367 21 87 264, Email
| | - Slavica Vucinic
- Medical Faculty Military Medical Academy, University of Defense, Belgrade, Serbia
- National Poison Control Center, Military Medical Academy, Belgrade, Serbia
| | - Jelena Kotur-Stevuljevic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Kristijan Krstic
- Department of Physical Medicine and Rehabilitation, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Jasmina Jovic-Stosic
- Medical Faculty Military Medical Academy, University of Defense, Belgrade, Serbia
- National Poison Control Center, Military Medical Academy, Belgrade, Serbia
| | - Vesna Kilibarda
- Medical Faculty Military Medical Academy, University of Defense, Belgrade, Serbia
- National Poison Control Center, Military Medical Academy, Belgrade, Serbia
| | - Natasa Perkovic-Vukcevic
- Medical Faculty Military Medical Academy, University of Defense, Belgrade, Serbia
- National Poison Control Center, Military Medical Academy, Belgrade, Serbia
| | - Snezana Djordjevic
- Medical Faculty Military Medical Academy, University of Defense, Belgrade, Serbia
- National Poison Control Center, Military Medical Academy, Belgrade, Serbia
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15
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Abstract
Burning mouth syndrome (BMS) is a rare chronic neuropathic pain condition characterized by recurring burning pain or dysesthesia in the absence of any local or systemic causes of symptoms. The exact pathophysiology of BMS is unknown, but recent research suggests a medley of neuropathic, endocrinological, and psychosocial elements. This article presents a case history and reviews the epidemiology, diagnostic criteria, clinical features, diagnostic investigations, pathophysiology, and management of BMS.
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Affiliation(s)
- Shehryar Nasir Khawaja
- Orofacial Pain Medicine, Shaukat Khanum Memorial Cancer Hospitals and Research Centres, Lahore and Peshawar, Pakistan; Tufts University, School of Dental Medicine, Boston, MA, USA.
| | - Omar F Alaswaiti
- Orofacial Pain Program, Tufts University, School of Dental Medicine, 1 Kneeland St, Boston, MA 02111, USA
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16
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Oh GY, Moga DC, Abner EL. Gabapentin utilization among older adults with different cognitive statuses enrolled in the National Alzheimer's Coordinating Center (2006-2019). Br J Clin Pharmacol 2023; 89:410-415. [PMID: 36097795 PMCID: PMC9772139 DOI: 10.1111/bcp.15532] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 08/14/2022] [Accepted: 08/29/2022] [Indexed: 12/24/2022] Open
Abstract
This study aimed to examine gabapentin utilization trends among older adults with different cognitive statuses and investigate concurrent medication use of potentially inappropriate medications. Data were extracted from the National Alzheimer's Coordinating Center Uniform Data Set (2006-2019). We estimated the yearly prevalence of gabapentin use, both overall and within subgroups defined by cognitive status (normal, mild cognitive impairment and dementia) and demographics (age and sex) for participants aged 65+. Additionally, we assessed the prevalence of concurrent use of gabapentin with opioids, combined opioids and benzodiazepine, antidepressant and antipsychotic. From 35 205 eligible older adults (mean age [SD]: 75.7 [7.0]; male: 43.1%), gabapentin use increased from 2006 to 2019 in both overall and every participant subgroup. About 10%-30% of gabapentin users reported to concurrently use opioids, and the concurrent use of gabapentin, opioid and benzodiazepine was up to 7.5% throughout the study period. The frequency of concurrent use with antipsychotics or antidepressants was higher in participants with dementia than those with normal cognition or those who were mildly cognitively impaired. Given increasing use among older adults, rigorous studies are needed to examine the safety of gabapentin in this population.
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Affiliation(s)
- GYeon Oh
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA
| | - Daniela C. Moga
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA
- Department of Epidemiology, University of Kentucky, Lexington, KY, USA
- Department of Pharmacy Practice and Science, University of Kentucky, Lexington, KY, USA
| | - Erin L. Abner
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA
- Department of Epidemiology, University of Kentucky, Lexington, KY, USA
- Department of Biostatistics, University of Kentucky, Lexington, KY, USA
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17
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Candon M, Strominger J, Gerlach LB, Maust DT. Antiepileptic prescribing to persons living with dementia residing in nursing homes: A tale of two indications. J Am Geriatr Soc 2023; 71:89-97. [PMID: 36349528 PMCID: PMC9870979 DOI: 10.1111/jgs.18119] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/14/2022] [Accepted: 09/05/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND Antiepileptics are commonly prescribed to nursing home residents with Alzheimer's disease and related dementias (ADRD) but there is little scientific support for their use in this population. It is unclear whether different antiepileptics are targeting different indications. METHODS Using the Minimum Data Set and Medicare data, including Part D pharmacy claims, we constructed annual cohorts of residents with ADRD with long-term stays in nursing homes from 2015 to 2019. For each year, we measured the proportion of residents with ADRD in nursing homes nationwide with at least one antiepileptic prescription. We also measured trends in valproic acid, gabapentin, antipsychotic, and opioid prescribing. Finally, we examined how prescribing rates differed based on whether residents with ADRD had disruptive behaviors or reported pain. RESULTS Our study sample includes 973,074 persons living with ADRD who had a long-term stay in a nursing home, which was defined as at least 3 months. The proportion of residents with ADRD with at least one antiepileptic prescription increased from 29.5% in 2015 to 31.3% in 2019, which was driven by increases in the rate of valproic acid and gabapentin prescribing. Conversely, antipsychotic prescribing rates declined from 32.1% to 27.9% and opioid prescribing rates declined from 39.8% to 31.7%. The risk of valproic acid prescribing was 10.9 percentage points higher among residents with ADRD with disruptive behaviors, while the risk of being prescribed gabapentin was 13.9 percentage points higher among residents with ADRD reporting pain. CONCLUSIONS Antiepileptic prescribing among nursing home residents with ADRD is increasing, while antipsychotic and opioid prescribing is declining. Examining antiepileptic prescribing to residents with ADRD who had disruptive behaviors and/or reported pain suggests that two of the most common antiepileptics, valproic acid and gabapentin, are being used in clinically distinct ways. Antiepileptic prescribing of questionable risk-benefit for dementia care warrants further scrutiny.
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Affiliation(s)
- Molly Candon
- Penn Center for Mental Health, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
- Department of Health Care Management, The Wharton School, University of Pennsylvania, Philadelphia, PA
- Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA
| | - Julie Strominger
- Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI
| | | | - Donovan T. Maust
- Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI
- Department of Psychiatry, University of Michigan, Ann Arbor, MI
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18
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Kelley A. Herpes zoster: A primary care approach to diagnosis and treatment. JAAPA 2022; 35:13-18. [PMID: 36346926 DOI: 10.1097/01.jaa.0000892712.73041.ae] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
ABSTRACT Herpes zoster, or shingles, caused by a reactivation of the chickenpox virus, can occur in patients of any age, but is more common in older adults. Patient history is critical in reaching a diagnosis, not only to manage the outbreak effectively, but also to prevent severe complications such as dissemination of the virus into the central nervous system. This article describes recent changes in diagnostic testing, treatment, prevention, and practice guidelines as well as the approach clinicians should take when evaluating patients with herpes zoster and assessing risk for complications.
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Affiliation(s)
- Angela Kelley
- Angela Kelley is director of didactic education and an assistant professor in the PA program at Gannon University's Ruskin (Fla.) Campus. The author has disclosed no potential conflicts of interest, financial or otherwise
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Feise RJ, Mathieson S, Kessler RS, Witenko C, Zaina F, Brown BT. Benefits and harms of treatments for chronic non-specific low back pain without radiculopathy: Systematic review and meta-analysis. Spine J 2022; 23:629-641. [PMID: 36400393 DOI: 10.1016/j.spinee.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND CONTEXT Currently, there are no published studies that compare non-pharmacological, pharmacological and invasive treatments for chronic low back pain in adults and provide summary statistics for benefits and harms. PURPOSE The aim of this review was to compare the benefits and harms of treatments for the management of chronic low back pain without radiculopathy and to report the findings in a format that facilitates direct comparison (Benefit-Harm Scale: level 1 to 7). DESIGN Systematic review and meta-analysis of randomized controlled trials, including trial registries, from electronic databases up to 23rd May 2022. PATIENT SAMPLE Adults with non-specific chronic low back pain, excluding radicular pain in any clinical setting. OUTCOME MEASURES Comparison of pain at immediate-term (≤2 weeks) and short-term (>2 weeks to ≤12 weeks) and serious adverse events using the Benefit-Harm Scale (level 1 to 7). METHODS This was a registered systematic review and meta-analysis of randomized controlled trials. Interventions included non-pharmacological (acupuncture, spinal manipulation), pharmacological and invasive treatments compared to placebo. Best evidence criteria was used. Two independent reviewers conducted eligibility assessment, data extraction and quality appraisal. RESULTS The search retrieved 17,362 records. Three studies provided data on the benefits of interventions, and 30 provided data on harms. Studies included interventions of acupuncture (n=8); manipulation (n=2); pharmacological therapies (n=9), including NSAIDs and opioid analgesics; surgery (n=8); and epidural corticosteroid injections (n=3). Acupuncture (standardized mean difference (SMD) -0.51, 95%CI -0.88 to -0.14, n=1 trial, moderate quality of evidence, benefit rating of 3) and manipulation (SMD -0.39, 95%CI -0.56 to -0.21, n=2 trials, moderate quality of evidence, benefit rating of 5) were effective in reducing pain intensity compared to sham. The benefit of the other interventions was scored as uncertain due to not being effective, statistical heterogeneity preventing pooling of effect sizes, or the absence of relevant trials. The harms level warnings were at the lowest (eg, indicating rarer risk of events) for acupuncture, spinal manipulation, NSAIDs, combination ingredient opioids, and steroid injections, while they were higher for single ingredient opioid analgesics (level 4) and surgery (level 6). CONCLUSIONS There is uncertainty about the benefits and harms of all the interventions reviewed due to the lack of trials conducted in patients with chronic non-specific low back pain without radiculopathy. From the limited trials conducted, non-pharmacological interventions of acupuncture and spinal manipulation provide safer benefits than pharmacological or invasive interventions. However, more research is needed. There were high harms ratings for opioids and surgery.
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Affiliation(s)
- Ronald J Feise
- Institute of Evidence-Based Chiropractic, 7047 E Greenway Pkwy Suite 250, Scottsdale, AZ 85254, USA.
| | - Stephanie Mathieson
- Institute for Musculoskeletal Health, Camperdown, NSW, 2050, Australia; Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia
| | - Rodger S Kessler
- University of Colorado Denver - Anschutz Medical Campus, 13001 E 17th Pl, Aurora, CO 80045, USA
| | - Corey Witenko
- NewYork-Presbyterian Hospital/ Weill Cornell Medical Center, 525 East 68th Street, New York, NY 10065, USA
| | - Fabio Zaina
- ISICO (Italian Scientifi Spine Institute), Via Roberto Bellarmino 13/1, Milan, 20141, Italy
| | - Benjamin T Brown
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Macquarie Park NSW 2109, Australia
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Grauer JS, Cramer JD. Association of State-Imposed Restrictions on Gabapentin with Changes in Prescribing in Medicare. J Gen Intern Med 2022; 37:3630-3637. [PMID: 35018568 PMCID: PMC9585149 DOI: 10.1007/s11606-021-07314-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 12/03/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Between August 2016 and July 2018, three states classified gabapentin as a Schedule V drug and nine states implemented prescription drug monitoring program (PDMP) regulation for gabapentin. It is highly unusual for states to take drug regulation into their own hands. The impact of these changes on gabapentin prescribing is unclear. OBJECTIVE To determine the effect of state-imposed regulation on gabapentin prescribing for Medicare Part D enrollees from 2013 to 2018. DESIGN Population-based difference-in-difference(DID) analysis study utilizing the Medicare Part D Prescriber Public Use File. PARTICIPANTS All eligible Medicare Part D prescribers excluding those outside of the fifty states and the District of Columbia were included in our analysis. Prescriber data and key sociodemographic variables were organized by state and year. States with a gabapentin schedule change or PDMP regulation enacted before 2019 were included in the intervention group. For the Schedule V DID analysis, a control group of the ten highest opioid-prescribing states was used. INTERVENTIONS States with gabapentin schedule changes or PDMP regulation before January 1, 2019, were included and compared to control states that did not implement these policies. MAIN MEASURES Total days' supply of gabapentin per enrollee per year was the primary outcome variable. KEY RESULTS The mean total days' supply of gabapentin per enrollee increased 41% from 19.71 to 27.81 total days' supply per enrollee per year between 2013 and 2018. After adjustment, Schedule V gabapentin regulation resulted in a reduction of 8.37 total days of gabapentin prescribed per enrollee (95% confidence interval of - 10.34 to - 6.39). In contrast, PDMP regulation resulted in a reduction of 1.01 total days of gabapentin prescribed per enrollee (95% confidence interval of - 1.74 to - 0.29). CONCLUSIONS Classifying gabapentin as a Schedule V drug results in substantial reduction in total days prescribed whereas PDMP regulation results in modest reduction.
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Affiliation(s)
- Jordan S Grauer
- Department of Otolaryngology - Head and Neck Surgery, Wayne State University School of Medicine, 4201 St Antoine St, UHC 5E, Detroit, MI, 48201, USA
| | - John D Cramer
- Department of Otolaryngology - Head and Neck Surgery, Wayne State University School of Medicine, 4201 St Antoine St, UHC 5E, Detroit, MI, 48201, USA.
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21
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Olopoenia A, Camelo-Castillo W, Qato DM, Adekoya A, Palumbo F, Sera L, Simoni-Wastila L. Adverse outcomes associated with concurrent gabapentin, opioid, and benzodiazepine utilization: A nested case-control study. LANCET REGIONAL HEALTH. AMERICAS 2022; 13:100302. [PMID: 36777316 PMCID: PMC9904085 DOI: 10.1016/j.lana.2022.100302] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Gabapentin, opioids, and/or benzodiazepines are commonly prescribed for a variety of pain and psychiatric conditions. Despite the high likelihood of co-prescription of these medications, little is known about co-utilization of gabapentin (GABA), opioids (OP), and benzodiazepines (BZD) and associated public health outcomes. Methods Using Medicare CCW Data, 2013-2016, we conducted a nested case-control study to examine the association between concurrent utilization of GABA, OP, and BZD and respiratory depression, opioid, and substance-related overdose among Medicare disabled beneficiaries. Cases and controls were Fee-for-service disabled beneficiaries who had a diagnosis of acute pain (AP), chronic pain (CP) or mental health conditions (MH) and received GABA, OP or BZD. Cases with respiratory depression, opioid or substance-related overdose were matched with up to 4 controls on socio-demographics, year of cohort entry and disease risk score. Primary exposure was concurrent medication utilization defined as an overlap of at least one day in prescriptions for GABA, OP and BZD. Findings Across all cohorts, the majority of cases and controls were under 65, female, dually eligible and had prior histories of pain and mental health conditions. GABA+OP+BZD use was associated with increased odds of respiratory depression [AOR(95%CI)-AP: 1.35 (1.19-1.52), CP:1.24 (1.11-1.38) and MH: 1.16 (1.02-1.32) vs. OP only], opioid-related overdose [AP: 1.43 (1.04-1.98), CP: 1.47 (1.07-2.00) and MH: 1.44 (1.04-2.00) vs. OP only], and substance-related overdose [AP: 1.77 (1.26-2.50), CP: 1.70 (1.24-2.34) and MH: 1.92 (1.31-2.82) vs. GABA only]. While there were cohort differences in the association between GABA+OP and both respiratory depression and opioid-related overdose, GABA+OP and GABA+BZD use were associated with significantly higher odds of substance-related overdose across all clinical cohorts. Interpretation Among Medicare disabled beneficiaries, concurrent utilization of gabapentin, opioids, and benzodiazepines is associated with multiple adverse outcomes. Given this, it is imperative that the benefits and risks of co-prescribing these medications be comprehensively examined. Funding None.
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Affiliation(s)
- Abisola Olopoenia
- Department of Pharmaceutical Health Services Research, University of Maryland Baltimore, Baltimore, MD, USA,Corresponding author at: 2671 Avenir Pl, Vienna, VA, 22180.
| | - Wendy Camelo-Castillo
- Department of Pharmaceutical Health Services Research, University of Maryland Baltimore, Baltimore, MD, USA
| | - Danya M. Qato
- Department of Pharmaceutical Health Services Research, University of Maryland Baltimore, Baltimore, MD, USA,School of Medicine, University of Maryland Baltimore, Baltimore, MD, USA
| | - Adepeju Adekoya
- Johns Hopkins Medicine, Department of Anesthesiology & Critical Care Medicine, Division of Chronic Pain Medicine, Baltimore, MD, USA
| | - Frank Palumbo
- Department of Pharmaceutical Health Services Research, University of Maryland Baltimore, Baltimore, MD, USA
| | - Leah Sera
- Department of Pharmacy Practice and Science, University of Maryland Baltimore, Baltimore, MD, USA
| | - Linda Simoni-Wastila
- Department of Pharmaceutical Health Services Research, University of Maryland Baltimore, Baltimore, MD, USA,Peter Lamy Center on Drug Therapy and Aging, University of Maryland Baltimore, Baltimore, MD, USA
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22
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Slane A, Robert S, Rarrick C, Weeda E. Survey of noncontrolled medication misuse patterns. Ment Health Clin 2022; 12:199-204. [PMID: 35801164 PMCID: PMC9190268 DOI: 10.9740/mhc.2022.06.199] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction The abuse potential of opioids and other controlled substances is well-known; however, reports of noncontrolled prescription medication (NCPM) misuse deserves further attention. Whereas several studies investigate patterns, motivations, and biochemical mechanisms underlying the misuse potential of NCPM, the clinical significance of NCPM misuse is not well-understood. The primary objectives of this project were to identify prescriber perceptions of NCPM misuse and evaluate patient reported patterns of misuse through survey responses. Methods Adult patients admitted to psychiatry services and prescribers working in psychiatry or on a general medicine service during the study time frame were invited to participate. Surveys were collected anonymously for both patients and prescribers. Results NCPM misuse was reported by 38.4% of patients. Trazodone (35%) and quetiapine (30%) were most commonly reported as being misused. Opioid (24.1% vs 4.3%; P = .023) and cannabis use disorders (13.8% vs 0%; P = .019) were reported more frequently in patients who misuse NCPM, whereas no difference was seen for other SUDs (P > .05). There was no difference between psychiatric and general medicine prescribers regarding familiarity with NCPM misuse (n = 21 [87.5%] vs n = 13 [81.3%]; P = .668). Discussion High rates of NCPM misuse were seen in this patient population. Our findings confirm previous reports of quetiapine misuse and also reveal that trazodone is frequently misused. Based on the observations in this study, the misuse of NCPM is identified as prevalent and noteworthy at our institution, warranting provider education and future studies.
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Affiliation(s)
| | - Sophie Robert
- 2 Psychiatric Clinical Pharmacy Specialist, The Medical University of South Carolina, Charleston, South Carolina
| | - Christine Rarrick
- 3 Psychiatric Clinical Pharmacy Specialist, The Medical University of South Carolina, Charleston, South Carolina
| | - Erin Weeda
- 4 Assistant Professor, The Medical University of South Carolina College of Pharmacy, Charleston, South Carolina
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23
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Zhao D, Nunes AP, Baek J, Lapane KL. An algorithm to identify gabapentin misuse and/or abuse in administrative claims data. Drug Alcohol Depend 2022; 235:109429. [PMID: 35427982 DOI: 10.1016/j.drugalcdep.2022.109429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/20/2022] [Accepted: 03/22/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Despite gabapentin's misuse and abuse potential and associated adverse events, few algorithms are available to detect gabapentin misuse and/or abuse in claims data. This study aims to develop an algorithm to identify gabapentin misuse and/or abuse in administrative claims data. METHODS We developed an algorithm to identify gabapentin misuse and/or abuse over a 12-month period based on input from 21 clinical experts. We implemented the algorithm among 334,128 patients with at least one dispensed prescription of gabapentin between December 1, 2017 and December 1, 2018 in the IBM® MarketScan® Research Databases. We described the characteristics of patients who potentially misused and/or abused gabapentin and assessed factors associated with misuse and/or abuse using logistic regression. RESULTS The algorithm identified 17.6% of patients with gabapentin use who potentially misused and/or abused gabapentin. Factors associated with potential gabapentin misuse and/or abuse included men (adjusted odds ratio (aOR): 1.08; 95% confidence interval (CI): 1.06-1.10), comorbid conditions (e.g., drug and alcohol dependence (aOR: 1.31; 95% CI: 1.24-1.39); bipolar disorder (aOR: 1.34; 95% CI: 1.27-1.41)), and medication use (e.g., opioids (aOR: 1.23; 95% CI: 1.20-1.26), muscle relaxants (aOR: 1.24; 95% CI: 1.21-1.27), or serotonin-norepinephrine reuptake inhibitors (aOR: 1.33; 95% CI: 1.29-1.36)). CONCLUSIONS Approximately one in six patients with gabapentin use potentially misused and/or abused gabapentin in a large commercial claims database. Multiple comorbidities and drug use were associated with gabapentin misuse and/or abuse. Monitoring requirements and individualized safety measures should be put in place for patients at elevated risks of gabapentin misuse and/or abuse.
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Affiliation(s)
- Danni Zhao
- Division of Epidemiology, Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA
| | - Anthony P Nunes
- Division of Epidemiology, Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA
| | - Jonggyu Baek
- Division of Biostatistics and Health Services Research, Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA
| | - Kate L Lapane
- Division of Epidemiology, Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA.
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24
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Swart ECS, Newman TV, Huang Y, Howell RJ, Han M, Good CB, Peasah SK, Parekh N. Patient and medication-related factors associated with opioid use disorder after inpatient opioid administration. J Hosp Med 2022; 17:342-349. [PMID: 35570695 DOI: 10.1002/jhm.12835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/26/2022] [Accepted: 04/05/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Examine baseline factors associated with a new diagnosis of opioid use disorder (OUD) within 12 months postdischarge among opioid-naïve patients who received an opioid prescription in the inpatient setting. DESIGN/SETTING Retrospective cohort (surgery and nonsurgery) study of opioid-naive patients who had at least one prescription for an opioid during an inpatient hospitalist between 2014 and 2017. PARTICIPANTS Twenty-three thousand and thirty-three patients were included. OBJECTIVE The primary objective was to determine baseline factors associated with a new OUD diagnosis within 12 months of discharge. Baseline covariates included demographic information, clinical characteristics, medication use, characteristics related to index hospital encounter, and discharge location. FINDINGS 2.1% of the sample had a new diagnosis of OUD within a year after receiving an opioid during hospital admission. Patients between ages 25 and 34 had higher odds of a new OUD diagnosis compared to those 65 years of age and older (odds ratio [OR]: 6.98, 95% confidence interval [CI]: 4.02-12.1 [nonsurgery] and 4.69, 95% CI: 2.63-8.37 [surgery]). Patients from a high opioid geo-rank region had higher odds of OUD diagnosis (OR: 2.08, 95% CI: 1.31-3.31 [nonsurgery] and 1.80, 95% CI: 1.03-3.15 [surgery]). History of nonopioid-related drug disorder, tobacco use disorder, mental health conditions, and gabapentin use 12 months prior to index date and white race were associated with higher odds of new OUD diagnosis. CONCLUSIONS It is important to identify and evaluate factors associated with developing a new diagnosis of OUD following hospitalization. This can inform pain management strategies within the hospital and at discharge, and prompt clinicians to screen for risk of OUD.
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Affiliation(s)
- Elizabeth C S Swart
- UPMC Centers for High-Value Health Care and Value-Based Pharmacy Initiatives, UPMC Health Plan, Pittsburgh, Pennsylvania, USA
| | - Terri V Newman
- Department of Pharmacy and Therapeutics, University of Pittsburgh School of Pharmacy, Pittsburgh, Pennsylvania, USA
| | - Yan Huang
- UPMC Centers for High-Value Health Care and Value-Based Pharmacy Initiatives, UPMC Health Plan, Pittsburgh, Pennsylvania, USA
| | - Robert J Howell
- Department of Health Economics, UPMC Health Plan, Pittsburgh, Pennsylvania, USA
| | - Mei Han
- Department of Health Economics, UPMC Health Plan, Pittsburgh, Pennsylvania, USA
| | - Chester B Good
- UPMC Centers for High-Value Health Care and Value-Based Pharmacy Initiatives, UPMC Health Plan, Pittsburgh, Pennsylvania, USA
- Division of General Internal Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Samuel K Peasah
- UPMC Centers for High-Value Health Care and Value-Based Pharmacy Initiatives, UPMC Health Plan, Pittsburgh, Pennsylvania, USA
| | - Natasha Parekh
- John A. Burns School of Medicine, Honolulu, Hawaii, USA
- The Queen's Health Systems, Honolulu, Hawaii, USA
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25
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Zhao D, Baek J, Hume AL, McPhillips EA, Lapane KL. Geographic Variation in the Use of Gabapentinoids and Opioids for Pain in a Commercially Insured Adult Population in the United States. J Pain Res 2022; 15:443-454. [PMID: 35177933 PMCID: PMC8846606 DOI: 10.2147/jpr.s345521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/18/2022] [Indexed: 01/14/2023] Open
Abstract
Background Gabapentinoids have been prescribed off-label for almost all types of pain. The geographic variation in the use of gabapentinoids as analgesics remains unknown. Objective To describe the geographic variation in gabapentinoids, opioids and concurrent use of both for pain by US state and metropolitan statistical area (MSA). Methods We conducted a cross-sectional study on December 1, 2018, among commercially insured adults aged 18–64 years without epilepsy or opioid use disorders using IBM® MarketScan® Research Databases. We described the geographic variation in the analgesic regimens (gabapentinoids, opioids and concurrent use of both) by state and MSA, and assessed factors associated with the geographic variation using multilevel logistic regression. Results We included 9,314,197 beneficiaries; 1.4% had gabapentinoids, 1.5% had opioids and 0.3% had concurrent use of both. The majority of gabapentinoid use lacked an FDA-approved indication. Use of the analgesic regimens varied across states (gabapentinoids (median (interquartile range)): 1.4% (1.2–1.7%); opioids: 1.5% (1.2–1.9%); both: 0.3% (0.2–0.4%)) and MSAs (gabapentinoids: 1.6% (1.3–2.0%); opioids: 1.8% (1.3–2.3%); both: 0.3% (0.2–0.5%)). Demographics explained the largest proportion of the between-state and between-MSA variation. The pattern of the geographic variation in gabapentinoids was similar to that of opioids across states and MSAs. Conclusion Gabapentinoids were as commonly used as opioids for pain in a commercially insured population (mostly off-label). The geographic variation in gabapentinoids was similar to that of opioids, which suggests that gabapentinoids may be widely used as alternatives or adjuvants to opioids across the US.
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Affiliation(s)
- Danni Zhao
- Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA
| | - Jonggyu Baek
- Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA
| | - Anne L Hume
- Department of Family Medicine, Alpert Medical School, Brown University, Memorial Hospital of Rhode Island, Providence, RI, USA
- Department of Pharmacy Practice, College of Pharmacy, University of Rhode Island, Kingston, RI, USA
| | - Emily A McPhillips
- Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA
| | - Kate L Lapane
- Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA
- Correspondence: Kate L Lapane, Department of Population and Quantitative Health Sciences, UMass Chan Medical School, Worcester, MA, USA, Email
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26
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Aljassem A, Hall LM, Spickler M, Menkes DL. A Practical Approach to the Treatment of Painful Polyneuropathies. Neuromuscul Disord 2022. [DOI: 10.1016/b978-0-323-71317-7.00006-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Harris M, Erridge S, Ergisi M, Nimalan D, Kawka M, Salazar O, Ali R, Loupasaki K, Holvey C, Coomber R, Usmani A, Sajad M, Hoare J, Rucker JJ, Platt M, Sodergren MH. UK Medical Cannabis registry: an analysis of clinical outcomes of medicinal cannabis therapy for chronic pain conditions. Expert Rev Clin Pharmacol 2021; 15:473-485. [PMID: 34937477 DOI: 10.1080/17512433.2022.2017771] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES To explore pain-specific, general health-related quality of life (HRQoL), and safety outcomes of chronic pain patients prescribed cannabis-based medicinal products (CBMPs). METHODS A case series was performed using patients with chronic pain from the UK Medical Cannabis Registry. Primary outcomes were changes in Brief Pain Inventory short-form (BPI), Short-form McGill Pain Questionnaire-2 (SF-MPQ-2), Visual Analogue Scale-Pain (VAS), General Anxiety Disorder-7 (GAD-7), Sleep Quality Scale (SQS), and EQ-5D-5L, at 1, 3, and 6 months from baseline. Statistical significance was defined at p-value<0.050. RESULTS 190 patients were included. Median initial Δ9-tetrahydrocannabinol and cannabidiol daily doses were 2.0mg (range:0.0-442.0mg) and 20.0mg (range:0.0-188.0mg) respectively. Significant improvements were observed within BPI, SF-MPQ-2, GAD-7, SQS, EQ-5D-5 L index, and VAS measures at all timepoints (p<0.050). Seventy-five adverse events (39.47%) were reported, of which 37 (19.47%) were rated as mild, 23 (12.11%) as moderate, and 14 (7.37%) as severe. Nausea (n=11; 5.8%) was the most frequent adverse event. CONCLUSION An association was identified between patients with chronic pain prescribed CBMPs and improvements in pain-specific and general HRQoL outcomes. Most adverse events were mild to moderate in severity, indicating CBMPs were well tolerated. Inherent limitations of study design limit its overall applicability.
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Affiliation(s)
| | - Simon Erridge
- Imperial College London, London, UK.,Sapphire Medical Clinics, London, UK
| | | | | | | | | | | | | | | | - Ross Coomber
- Sapphire Medical Clinics, London, UK.,St. George's Hospital NHS Trust, London, UK
| | - Azfer Usmani
- Sapphire Medical Clinics, London, UK.,Dartford and Gravesham Nhs Trust, Kent, UK
| | - Mohammed Sajad
- Sapphire Medical Clinics, London, UK.,Dudley Group of Hospitals Nhs Trust, West Midlands, UK
| | - Jonathan Hoare
- Imperial College London, London, UK.,Sapphire Medical Clinics, London, UK
| | - James J Rucker
- Sapphire Medical Clinics, London, UK.,Department of Psychological Medicine, Kings College London, London, UK.,South London & Maudsley NHS Foundation Trust, London, UK
| | - Michael Platt
- Imperial College London, London, UK.,Sapphire Medical Clinics, London, UK
| | - Mikael H Sodergren
- Imperial College London, London, UK.,Sapphire Medical Clinics, London, UK
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28
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Karavolis ZA, Su AB, Peckham AM. State-level response to gabapentin misuse in the United States: Implications and future direction. Am J Health Syst Pharm 2021; 79:e143-e148. [PMID: 34951456 DOI: 10.1093/ajhp/zxab486] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
DISCLAIMER In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. PURPOSE Gabapentin misuse is on the rise and has forced many US states to mobilize policies to address this public health concern. The purpose of this manuscript is to update state-level gabapentin misuse-related policies in the US through September 1, 2021, discuss the benefits and risks of current measures, and highlight gaps in national response. METHODS Identification of state and federal district policy changes and deliberations related to gabapentin were searched via internet for all 50 states and 1 federal district (n = 51). Only results from state regulatory bodies, such as the board of pharmacy, or state legislative bodies, such as the senate, were considered for inclusion. RESULTS Results showed that 22 states and federal districts (43.1%) tightened regulation, while another 2 (3.9%) are considering doing so. Of the 22 states and federal districts with policy changes, 15 (68.2%) enrolled gabapentin into their prescription drug monitoring program, while 7 (31.8%) reclassified gabapentin as a Schedule V controlled substance (C-V). CONCLUSION Absent of federal guidance surrounding gabapentin misuse, the onus has fallen on individual states; thus, approaches have ranged from no intervention to reclassification as a C-V. These measures aim to reduce medication supply but fall short of addressing patient outcomes and reducing harm. Therefore, harm reduction-informed public health policies must be implemented to positively impact patient outcomes and enhance safety.
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Affiliation(s)
- Zoe A Karavolis
- Department of Pharmacy, University of Pittsburgh Medical Center, Pittsburgh, PA, and School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA
| | - Andrew B Su
- School of Pharmacy, Northeastern University, Boston, MA, USA
| | - Alyssa M Peckham
- Department of Pharmacy, Massachusetts General Hospital, Boston, MA, USA
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29
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Migeon M. Is gabapentin a safe and effective treatment for nonneuropathic pain? JAAPA 2021; 34:54-56. [PMID: 34813535 DOI: 10.1097/01.jaa.0000794984.26635.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
ABSTRACT A review of the recent literature found that compared with placebo or other pain medications, gabapentin did not significantly reduce nonneuropathic pain. The drug also is associated with an increased risk of adverse reactions, including somnolence, dizziness, and nausea. Given the lack of efficacy and risk of adverse reactions, gabapentin should not be used for nonneuropathic pain.
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Affiliation(s)
- Meghan Migeon
- Meghan Migeon is the program director and an associate professor in the PA program at Springfield (Mass.) College. The author has disclosed no potential conflicts of interest, financial or otherwise
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30
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Kawka M, Erridge S, Holvey C, Coomber R, Usmani A, Sajad M, Platt MW, Rucker JJ, Sodergren MH. Clinical Outcome Data of First Cohort of Chronic Pain Patients Treated With Cannabis-Based Sublingual Oils in the United Kingdom: Analysis From the UK Medical Cannabis Registry. J Clin Pharmacol 2021; 61:1545-1554. [PMID: 34473850 PMCID: PMC9292210 DOI: 10.1002/jcph.1961] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/27/2021] [Indexed: 12/20/2022]
Abstract
Cannabis-based medicinal products (CBMPs) are an emerging therapeutic option in the management of primary chronic pain, using the role of the endocannabinoid system in modulating central and peripheral pain processes. Despite promising preclinical data, there is a paucity of high-quality evidence to support the use of CBMPs for chronic pain. This study aimed to investigate the health-related quality-of-life outcomes of patients with chronic pain who were prescribed CBMP oil preparations (Adven, Curaleaf International, Guernsey, UK). This study is a case series of patients from the UK Medical Cannabis Registry, who were treated with CBMP oils for an indication of chronic pain. The primary outcomes were the changes in Brief Pain Inventory short form, Short-Form McGill Pain Questionnaire-2, Visual Analog Scale Pain, General Anxiety Disorder-7, Sleep Quality Scale, and EQ-5D-5L, at 1, 3, and 6 months. One hundred ten patients were included. Significant improvements in Sleep Quality Scale, EQ-5D-5L pain and discomfort subscale, and Brief Pain Inventory Interference Subscale (P < .05) at 1, 3, and 6 months were demonstrated. There were no notable differences between cannabis-naïve and previous cannabis users in quality-of-life outcomes. The adverse event incidence was 30.0%, with most (n = 58; 92.1%) adverse events being mild or moderate in intensity. Treatment of chronic pain with Adven CBMP oils was associated with an improvement in pain-specific outcomes, health-related quality of life, and self-reported sleep quality. Relative safety was demonstrated over medium-term prescribed use. While these findings must be treated with caution considering the limitations of study design, they can inform future clinical trials.
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Affiliation(s)
- Michal Kawka
- Imperial College Medical Cannabis Research Group, Imperial College London, London, UK
| | - Simon Erridge
- Imperial College Medical Cannabis Research Group, Imperial College London, London, UK.,Sapphire Medical Clinics, London, UK
| | | | - Ross Coomber
- Sapphire Medical Clinics, London, UK.,St George's Hospital NHS Trust, London, UK
| | - Azfer Usmani
- Sapphire Medical Clinics, London, UK.,Dartford and Gravesham NHS Trust, Kent, UK
| | - Mohammad Sajad
- Sapphire Medical Clinics, London, UK.,Dudley Group of Hospitals NHS Trust, Dudley, UK
| | - Michael W Platt
- Imperial College Medical Cannabis Research Group, Imperial College London, London, UK.,Sapphire Medical Clinics, London, UK
| | - James J Rucker
- Sapphire Medical Clinics, London, UK.,Department of Psychological Medicine, Institute of Psychiatry Psychology & Neuroscience, Kings College London, London, UK.,South London & Maudsley NHS Foundation Trust, London, UK
| | - Mikael H Sodergren
- Imperial College Medical Cannabis Research Group, Imperial College London, London, UK.,Sapphire Medical Clinics, London, UK
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31
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Evoy KE, Peckham AM, Covvey JR, Tidgewell KJ. Gabapentinoid Pharmacology in the Context of Emerging Misuse Liability. J Clin Pharmacol 2021; 61 Suppl 2:S89-S99. [PMID: 34396549 DOI: 10.1002/jcph.1833] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 02/13/2021] [Indexed: 12/15/2022]
Abstract
This article will review the epidemiology and pharmacology of gabapentinoids (gabapentin and pregabalin) relevant to their emerging misuse potential and provide guidance for clinical and regulatory management. Gabapentinoids are γ-aminobutyric acid analogues that produce their therapeutic effects by inhibiting voltage-gated calcium channels and decreasing neurotransmitter release. Recently gabapentinoid prescribing and use have increased tremendously. Although traditionally thought to possess a favorable safety profile, gabapentinoid misuse has also risen significantly. Gabapentinoid misuse generally occurs in combination with other substances, most notably opioids, and may be for purposes of eliciting euphoric effects, enhancing the effects of other substances, or self-treating conditions such as withdrawal, pain, anxiety, or insomnia. Given its faster onset, increased bioavailability and potency, and nonsaturable absorption, pregabalin's pharmacokinetics theoretically enhance its misuse liability versus gabapentin. However, gabapentin can produce similar euphoric effects, and epidemiologic studies have identified higher rates of gabapentin misuse in the United States, likely because of greater availability and less regulated prescribing. Although adverse events of gabapentinoid-only ingestion are relatively benign, a growing body of evidence indicates that gabapentinoids significantly increase opioid-related morbidity and mortality when used concomitantly. In addition, significant withdrawal effects may occur on abrupt discontinuation. As a result of these trends, several US states have begun to further regulate gabapentinoid prescribing, reclassifying it as a controlled substance or mandating reporting to local prescription drug-monitoring programs. Although increased regulation of gabapentin prescribing may be warranted, harm reduction efforts and increased patient and provider education are necessary to mitigate this concerning gabapentinoid misuse trend.
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Affiliation(s)
- Kirk E Evoy
- The University of Texas at Austin College of Pharmacy, Austin, Texas, USA.,University Health System, San Antonio, Texas, USA
| | - Alyssa M Peckham
- School of Pharmacy, Northeastern University, Boston, Massachusetts, USA.,Department of Pharmacy, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jordan R Covvey
- Duquesne University School of Pharmacy, Pittsburgh, Pennsylvania, USA
| | - Kevin J Tidgewell
- Duquesne University School of Pharmacy, Pittsburgh, Pennsylvania, USA
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32
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Robbins MJ, Floroff C, Ingemi A, Kaplan MC. Evaluation of discharge prescribing after rescheduling of gabapentin as a controlled substance. Am J Health Syst Pharm 2021:zxab293. [PMID: 34282825 DOI: 10.1093/ajhp/zxab293] [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] [Received: 07/15/2021] [Indexed: 11/14/2022] Open
Abstract
PURPOSE Gabapentin has increasingly been identified as a drug of abuse, especially when used concurrently with opioids. Rescheduling gabapentin as a schedule V controlled substance may strengthen monitoring and prescribing restrictions. The purpose of this study was to characterize the impact of rescheduling gabapentin from a nonscheduled to a schedule V substance in Virginia on discharge prescribing patterns in a health system. METHODS This was a retrospective, pre-post, multicenter chart review conducted at 4 sites. Data from 3 months before gabapentin rescheduling (prerescheduling group) and 3 months after gabapentin rescheduling (postrescheduling group) were evaluated. The primary outcome was the percentage of newly prescribed gabapentin prescriptions upon discharge, which was compared between the pre- and postrescheduling groups. RESULTS A similar percentage of gabapentin prescriptions were newly prescribed in the prerescheduling group as compared to the postrescheduling group (55.0% vs 50.0%, P = 0.479). Gabapentin prescribing characteristics did not differ between the groups for new gabapentin prescriptions (n = 55 in the prerescheduling group, n = 50 in the postrescheduling group). Concomitant discharge prescribing of benzodiazepines (5.5% vs 2.0%, P = 0.619) and opioids (45.5% vs 60.0%, P = 0.136) did not differ significantly between the postrescheduling group and prerescheduling group for new gabapentin prescriptions. However, fewer opioid prescriptions exceeded 90 daily morphine milligram equivalents (MME) in the postrescheduling group as compared to the prerescheduling group for new gabapentin prescriptions (36.0% vs 20.0%, P = 0.020). CONCLUSION Gabapentin prescribing practices did not differ before and after rescheduling of gabapentin as a controlled substance. There was a trend toward dosages with reduced daily MME for concomitant opioid prescriptions after rescheduling. However, additional investigation with larger studies over longer periods of time is needed to discover whether gabapentin rescheduling significantly changes prescribing practices.
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Affiliation(s)
- Melody J Robbins
- Department of Pharmacy, Sentara Norfolk General Hospital, Norfolk, VA, Department of Pharmacy, Chesapeake Regional Medical Center, Chesapeake, VA, USA
| | - Catherine Floroff
- Department of Pharmacy, Sentara Norfolk General Hospital, Norfolk, VA, USA
| | - Amanda Ingemi
- Department of Pharmacy, Sentara Norfolk General Hospital, Norfolk, VA, USA
| | - Marcus C Kaplan
- Department of Pharmacy, Sentara Norfolk General Hospital, Norfolk, VA, USA
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33
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Okoye NC, McMillin GA. Patterns of Neonatal Co-Exposure to Gabapentin and Commonly Abused Drugs Observed in Umbilical Cord Tissue. J Anal Toxicol 2021; 45:506-512. [PMID: 32860706 DOI: 10.1093/jat/bkaa118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/18/2020] [Accepted: 08/25/2020] [Indexed: 01/10/2023] Open
Abstract
Gabapentin was thought to have low abuse potential, but it is increasingly being abused by people with substance use disorder in an attempt to potentiate the euphoric effects from opioids and other CNS depressants. Additionally, infants co-exposed to gabapentin and opioids during pregnancy tend to exhibit prolonged and more severe neonatal abstinence syndrome. In this study, we describe positivity rates among commonly abused drugs and rates of co-medication with gabapentin in a large dataset of umbilical cord tissue specimens (n = 25,422) submitted for routine newborn drug testing at a national clinical reference laboratory (ARUP Laboratories, Salt Lake City, UT, USA). Detection of prenatal drug exposure in umbilical cord tissue specimens was accomplished using a semi-quantitative liquid chromatography-tandem mass spectrometry assay designed to detect 47 specific drugs and drug metabolites including opioids, stimulants, sedative-hypnotics and hallucinogens. A positive result for at least one of the measured drugs or drug metabolites was reported in 7,054 (28%) of the umbilical cord tissues analyzed. Gabapentin had a positivity rate of ~2% with 562 positive results. Of the 562 gabapentin-positive samples, 395 (70%) also had a positive result for at least one other drug or drug metabolite, with the highest co-positivity rate observed for norbuprenorphine (32%, n = 182) followed by amphetamine (15%, n = 84), buprenorphine (13%, n = 74), methamphetamine (12%, n = 68), morphine (11%, n = 64), fentanyl (10%, n = 54) and naloxone (10%, n = 54). Notably, the concentration of gabapentin in gabapentin-positive umbilical cord specimens was higher in buprenorphine-containing specimens as compared to specimens containing other opioids, stimulants or benzodiazepines. Identification of neonatal co-exposure to gabapentin and opioids, particularly buprenorphine, may guide clinicians in rapid initiation of monitoring and intervention for neonatal abstinence syndrome.
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Affiliation(s)
- Nkemakonam C Okoye
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Gwendolyn A McMillin
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA.,ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah, USA
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Moyo P, Donohue JM. Commentary on Zhou et al. : Policy levers to reduce co-prescribing of opioids and gabapentinoids and overdose risk. Addiction 2021; 116:831-832. [PMID: 33219577 DOI: 10.1111/add.15308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 10/23/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Patience Moyo
- Department of Health Services, Policy and Practice, Brown University School of Public Health, Providence, RI, USA
| | - Julie M Donohue
- Department of Health Policy and Management, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
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Tamarelli C, Hosanagar A. Phenibut Use in a Patient Prescribed Gabapentinoids. PAIN MEDICINE 2021; 22:761-762. [PMID: 32747958 DOI: 10.1093/pm/pnaa205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Carrie Tamarelli
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, USA
| | - Avinash Hosanagar
- Department of Psychiatry, University of Michigan and Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
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Gajda JM, Asiedu M, Morrison G, Dunning JA, Ghoreishi-Haack N, Barth AL. NYX-2925, A NOVEL, NON-OPIOID, SMALL-MOLECULE MODULATOR OF THE N-METHYL-d-ASPARTATE RECEPTOR (NMDAR), DEMONSTRATES POTENTIAL TO TREAT CHRONIC, SUPRASPINAL CENTRALIZED PAIN CONDITIONS. MEDICINE IN DRUG DISCOVERY 2021. [DOI: 10.1016/j.medidd.2020.100067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Ibiloye EA, Barner JC, Lawson KA, Rascati KL, Evoy KE, Peckham AM. Prevalence of and Factors Associated with Gabapentinoid Use and Misuse Among Texas Medicaid Recipients. Clin Drug Investig 2021; 41:245-253. [PMID: 33580482 DOI: 10.1007/s40261-021-01009-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Gabapentin and pregabalin have been considered relatively safe opioid-sparing adjuncts for pain management. However, rising prescribing trends, presence of gabapentinoids in opioid-related overdoses, and the growing body of evidence regarding gabapentinoid misuse and abuse, have caused gabapentinoids to emerge as a drug class of public health concern. This study aimed to assess the prevalence of, and factors associated with gabapentinoid use and misuse. METHODS This retrospective study of Texas Medicaid data from 1/1/2012 to 30/8/2016 included patients aged 18-63 years at index date, with ≥ 1 gabapentinoid prescription, and continuously enrolled 6 months pre-index and 12 months post-index. Gabapentinoid misuse was defined as ≥ 3 claims exceeding daily doses of 3600 mg for gabapentin and 600 mg for pregabalin. Age, gender, concurrent opioid use, neuropathic pain diagnoses and gabapentinoid type were independent variables. Descriptive and inferential statistics were used. RESULTS Of included subjects (N = 39,000), 0.2% (N = 81) met study criteria for gabapentinoid misuse. Overall, the majority (76.4%) of gabapentinoid users were aged 41-63 years with a mean ± SD age of 48.2 ± 10.7 years. Those patients meeting the study criteria for gabapentinoid misuse were significantly younger (45.1 ± 11.0 vs 48.2 ± 10.7, p = 0.0084). Majority of the study sample was female (68.1%). However, a significantly higher proportion of males met the study criteria for gabapentinoid misuse compared to females (0.3% vs 0.2%, p = 0.0079). Approximately one-half (51.9%) of the study sample had neuropathic pain, and gabapentinoid misuse was significantly higher in neuropathic pain patients compared to those without neuropathic pain (0.3% vs 0.1%, p = 0.0078). Over three-quarters (77.4%) of patients were using gabapentin; however, gabapentinoid misuse was significantly higher among pregabalin users (0.4% vs 0.2%, p = 0.0003). Approximately 20% (17.3%) of gabapentinoid users had ≥ 90 days of concurrent opioid use. However, there was no significant difference in gabapentinoid misuse among patients with concurrent opioid use compared to patients without (0.3% vs 0.2%, p = 0.1440). Factors significantly associated with misuse included: male sex (odds ratio [OR] 0.486; 95% confidence interval [CI] 0.313-0.756; p = 0.0013); neuropathic pain (OR 2.065; 95% CI 1.289-3.308; p = 0.0026); and pregabalin versus gabapentin use (OR 2.337, 95% CI 1.492-3.661; p = 0.0002). Concurrent opioid use was not significantly associated with gabapentinoid misuse (OR 1.542, 95% CI 0.920-2.586; p = 0.1006). CONCLUSION Prevalence of gabapentinoid misuse was low (0.2%) among Texas Medicaid recipients. Younger age, male gender, neuropathic pain diagnosis and pregabalin use were significantly associated with higher levels of gabapentinoid misuse.
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Affiliation(s)
- Elizabeth A Ibiloye
- Division of Health Outcomes, College of Pharmacy, University of Texas at Austin, Austin, Texas, USA.
| | - Jamie C Barner
- Division of Health Outcomes, College of Pharmacy, University of Texas at Austin, Austin, Texas, USA
| | - Kenneth A Lawson
- Division of Health Outcomes, College of Pharmacy, University of Texas at Austin, Austin, Texas, USA
| | - Karen L Rascati
- Division of Health Outcomes, College of Pharmacy, University of Texas at Austin, Austin, Texas, USA
| | - Kirk E Evoy
- Pharmacotherapy Division, College of Pharmacy, University of Texas at Austin, San Antonio, Texas, USA
- University Health System, San Antonio, Texas, USA
| | - Alyssa M Peckham
- Department of Pharmacy and Health Systems Sciences, School of Pharmacy, Northeastern University, Boston, Massachusetts, USA
- Department of Pharmacy, Massachusetts General Hospital, Boston, Massachusetts, USA
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Peckham AM, Covvey JR, Evoy KE. Letter to the Editor: Comment on "Gabapentinoid Benefit and Risk Stratification: Mechanisms Over Myth". Pain Ther 2021; 10:751-755. [PMID: 33565039 PMCID: PMC8119553 DOI: 10.1007/s40122-020-00222-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/19/2020] [Indexed: 11/01/2022] Open
Affiliation(s)
- Alyssa M Peckham
- Bouvé College of Health Sciences, School of Pharmacy, Northeastern University, Boston, MA, USA. .,Department of Pharmacy, Massachusetts General Hospital, Boston, MA, USA.
| | | | - Kirk E Evoy
- The University of Texas at Austin College of Pharmacy, Austin, TX, USA.,University Health System, San Antonio, TX, USA.,The University of Texas Health San Antonio School of Medicine, San Antonio, TX, USA
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Oh GY, Slavova S, Freeman PR. Characterization of gabapentin use in Kentucky after reclassification as a Schedule V controlled substance. J Am Pharm Assoc (2003) 2021; 61:e86-e92. [PMID: 33422420 DOI: 10.1016/j.japh.2020.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/07/2020] [Accepted: 12/13/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Owing to increasing concern over the potential for gabapentin misuse, gabapentin was reclassified as a schedule V controlled substance in Kentucky (July 2017). OBJECTIVE This study aimed to characterize gabapentin use among Kentucky residents in the first year after its scheduling. METHODS This study used Kentucky All Schedule Prescription Electronic Reporting data (2018). Gabapentin use was defined as having at least 1 dispensed gabapentin prescription, and high-dose gabapentin use was defined as an average daily dose of more than 3600 mg at the patient level. The prevalence of gabapentin use, concurrent use of gabapentin with opioid analgesics (OAs) (gabapentin-OA), and gabapentin with OAs and benzodiazepines (BDZs) (gabapentin-OA-BDZ) were assessed. Estimated prevalence rate ratio and its 95% CI were reported to compare gabapentin use rates across different demographic groups. RESULTS A total of 16% of all 2018 controlled substance prescriptions were for gabapentin, and approximately 20% of Kentucky residents with controlled substance prescriptions received gabapentin at least once in 2018. The overall prevalence of gabapentin use was 63 per 1000 residents, with the highest rates among residents aged 55-64 years (126.9 per 1000). The prevalence of gabapentin use was higher in females (74.6 per 1000) versus males (50.6 per 1000) and in residents living in the Appalachian region (88.57 per 1000) versus Central (51.78 per 1000) and Delta (66.41 per 1000) regions. Among gabapentin users, 1% were high-dose users; 27.4% and 11.9% received gabapentin-OA or gabapentin-OA-BDZ concurrently, respectively. As the average daily dose increased from less than 900 mg to high-dose, the percentage of concurrent gabapentin-OA use increased from 13.4% to 50.7%. CONCLUSION Gabapentin is widely prescribed in Kentucky, with higher rates of use observed in females, those older than 55 years and individuals living in the Appalachian region. Concurrent use of gabapentin and OAs is common, especially in those receiving high-dose gabapentin. Future studies are needed to assess the risks associated with gabapentin use.
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Evoy KE, Covvey JR, Peckham AM, Reveles KR. Gabapentinoid misuse, abuse and non-prescribed obtainment in a United States general population sample. Int J Clin Pharm 2021; 43:1055-1064. [PMID: 33387188 DOI: 10.1007/s11096-020-01217-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/08/2020] [Indexed: 11/24/2022]
Abstract
Background Reports of gabapentinoid (gabapentin and pregabalin) misuse are on the rise, but few studies have assessed this within the general US population. Objective Describe lifetime misuse/abuse/non-prescribed obtainment of gabapentinoids and descriptive characteristics associated with such actions in a US general population sample. Setting This cross-sectional questionnaire was administered online by Qualtrics® research panel aggregator via quota-based sampling. Methods Data were collected from a sample of respondents that mirrored the general US population aged 18-59 years with regards to age, geographic region, ethnicity, income, and education level, based on most recent census data. Misuse/abuse/non-prescribed obtainment was collectively defined as use of a gabapentinoid for reasons other than a diagnosed medical condition, using with the intention of altering one's state of consciousness, or obtaining without a prescription. A multivariable logistic regression model was created to predict misuse/abuse/non-prescribed obtainment of gabapentinoids, incorporating relevant covariates. Main outcome measure Proportion of sample indicating lifetime misuse/abuse/non-prescribed obtainment of gabapentinoids. Results Among 1,843 respondents, 121 (6.6%) reported gabapentinoid misuse/abuse/non-prescribed obtainment. Specifically, 2.1% (n = 39) and 1.5% (n = 27) of respondents for gabapentin and pregabalin, respectively, met study criteria for abuse. Opioids were the most common medication co-administered with gabapentinoids (among 50-70% of respondents) for misuse/abuse. Previous treatment for addiction (OR: 2.61, 95% CI: 1.32-5.14, p = 0.005) and the total attitudinal risk score (OR: 1.14, 95% CI: 1.09-1.19, p < 0.001) were associated with gabapentinoid misuse/abuse/non-prescribed obtainment. Conclusion Among those surveyed, 6.6% reported previous gabapentinoid misuse/abuse/non-prescribed obtainment, providing one of the first estimates within a nationally distributed, US general population sample.
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Affiliation(s)
- Kirk E Evoy
- The University of Texas At Austin College of Pharmacy, 7703 Floyd Curl Dr. - MC 6220, San Antonio, TX, 78229, USA. .,University Health System, San Antonio, TX, USA. .,The University of Texas Health San Antonio School of Medicine, 7703 Floyd Curl Dr. MC - 6220, San Antonio, TX, 78229, USA.
| | - Jordan R Covvey
- Duquesne University School of Pharmacy, 600 Forbes Avenue, 418 Mellon Hall, Pittsburgh, PA, 15282, USA
| | - Alyssa M Peckham
- School of Pharmacy, Northeastern University, Bouvé College of Health Sciences, 360 Huntington Ave, Boston, MA, R218 TF02115, USA.,Department of Pharmacy, Massachusetts General Hospital, 360 Huntington Ave, Boston, MA, R218 TF02115, USA
| | - Kelly R Reveles
- The University of Texas At Austin College of Pharmacy, 7703 Floyd Curl Dr. - MC 6220, San Antonio, TX, 78229, USA.,The University of Texas Health San Antonio School of Medicine, 7703 Floyd Curl Dr. MC - 6220, San Antonio, TX, 78229, USA
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Tambon M, Ponté C, Jouanjus E, Fouilhé N, Micallef J, Lapeyre-Mestre M. Gabapentinoid Abuse in France: Evidence on Health Consequences and New Points of Vigilance. Front Psychiatry 2021; 12:639780. [PMID: 33613345 PMCID: PMC7886797 DOI: 10.3389/fpsyt.2021.639780] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/06/2021] [Indexed: 11/21/2022] Open
Abstract
Introduction: Gabapentinoid drugs (gabapentin and pregabalin) are widely used worldwide for epileptic and pain disorders. First signals of gabapentinoid abuse occurred in the last decade. This study aims to describe clinical characteristics of gabapentinoid use related disorders and health consequences in France. Materials and Methods: We designed a multisource investigation reviewing data reported to the French Addictovigilance Network (FAN) with pregabalin and gabapentin from 2010 to 2019. Information was obtained through the analysis of Spontaneous Reports (SRs) notified by health professionals and the pharmacoepidemiological surveys OSIAP (suspicious prescriptions forms indicators of potential abuse), OPPIDUM (observation of illicit drugs and misuse of psychotropic medications), DRAMES (death related to prescription drugs and other substances), and DTA (toxic deaths due to analgesics). Results: Over 2010-2019 period, were collected: (i) 265 SRs (258 pregabalin; 7 gabapentin); (ii) 816 forged prescription forms (805 pregabalin, 10 gabapentin, 1 involving both drugs); (iii) 145 cases of gabapentinoid use in people who use drugs (121 pregabalin; 24 gabapentin) and (iv) 31 cases of gabapentinoid-related deaths (25 pregabalin; 6 gabapentin). Risk factors of gabapentinoid abuse were opioid use disorders or psychiatric history, but cases of primary abuse in subjects without any substance abuse history were observed. Adverse outcomes concern almost exclusively pregabalin, with coma, dyspnea, convulsion, and conduction disorders. Treatment demands increased from 10.6% in 2018 to 23.1% in 2019, with pregabalin cited as the first substance leading to addictological care in the 2019 OPPIDUM survey. Gabapentinoid-related deaths increased over time. Pregabalin has become the first drug mentioned in forged prescriptions in 2019 (23.8% of OSIAP), while it ranked at the 15th position in 2017 (2.6%). Discussion: This study shows the importance of addictovigilance monitoring for gabapentinoids. Addictovigilance data helped to make visible the gabapentinoid-abuse related health harms (hospitalization for serious neurologic, psychiatric or cardiac effects, requests for addictological support and deaths) and to confirm the intrinsic abuse potential of pregabalin. These data highlight new points of vigilance considering observed primary abuse. At this point in France, the risk of abuse and related complications is very apparent with pregabalin. Still, it is identical to that observed elsewhere with gabapentin.
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Affiliation(s)
- Marine Tambon
- Centre d'Evaluation et Information sur la Pharmacodépendance-Addictovigilance, Service de Pharmacologie Médicale et Clinique, CHU de Toulouse, Toulouse, France
| | - Camille Ponté
- Centre d'Evaluation et Information sur la Pharmacodépendance-Addictovigilance, Service de Pharmacologie Médicale et Clinique, CHU de Toulouse, Toulouse, France
| | - Emilie Jouanjus
- Centre d'Evaluation et Information sur la Pharmacodépendance-Addictovigilance, Service de Pharmacologie Médicale et Clinique, CHU de Toulouse, Toulouse, France.,Unité Mixte de Recherche, 1027 Inserm-Université, Pharmacoépidémiologie, Université de Toulouse, Toulouse, France
| | - Nathalie Fouilhé
- Centre d'Evaluation et Information sur la Pharmacodépendance-Addictovigilance, Service de Pharmacologie-Pharmacosurveillance, CHU Grenoble-Alpes, Grenoble, France
| | - Joelle Micallef
- Aix Marseille Univ, AP-HM, INSERM, Inst Neurosci Syst, Service de Pharmacologie Clinique et Pharmacovigilance, Marseille, France.,CEIP-Addictovigilance PACA Corse, Marseille, France
| | - Maryse Lapeyre-Mestre
- Centre d'Evaluation et Information sur la Pharmacodépendance-Addictovigilance, Service de Pharmacologie Médicale et Clinique, CHU de Toulouse, Toulouse, France.,Unité Mixte de Recherche, 1027 Inserm-Université, Pharmacoépidémiologie, Université de Toulouse, Toulouse, France.,Centre d'Investigation Clinique 1436, CHU de Toulouse, Toulouse, France
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Fonseca F, Lenahan W, Dart RC, Papaseit E, Dargan PI, Wood DM, Guareschi M, Maremmani I, Auriacombe M, Farré M, Scherbaum N, Torrens M. Non-medical Use of Prescription Gabapentinoids (Gabapentin and Pregabalin) in Five European Countries. Front Psychiatry 2021; 12:676224. [PMID: 33995154 PMCID: PMC8113698 DOI: 10.3389/fpsyt.2021.676224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 03/29/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Non-medical use (NMU) of prescription GABA analogs (pregabalin and gabapentin) has been reported especially in opiate dependent persons. However, by now the prevalence of NMU of gabapentinoids in the general population has not been sufficiently evaluated. The aim of this research paper is to determine the prevalence of prescription GABA analog NMU and associated demographics in five European countries with special detail of Spain. Methods: The RADARS Survey of Non-Medical Use of Prescription Drugs Program (NMURx) is a harmonized series of contemporaneous cross-sectional surveys of adults conducted in multiple countries. NMURx collects data from the general population in each participating country about NMU of prescription drugs, illicit drugs, and associated demographics. NMU was defined as "using a medication without a doctor's prescription or for any reason other than what was recommended by their doctor." Responses from Spain (4Q2017, n=10,062) were analyzed in detail. Comparative data were available from France, Germany, Italy, and UK. Responses were collected using non-probability quota sampling and post-stratification population weighting was applied to reflect the national distributions of adults, based on age, gender, and census region. Rates of NMU and associated demographics were reported as rate of past 90-day NMU per 100,000 adult population with 95% confidence intervals. Results: Germany (1,197 per 100,000 adult population [95% CI: 1,004.3-1,379.1]) and United Kingdom (1,067 per 100,000 adult population [95% CI: 851.3-1,283.2]) presented the highest prevalence of gabapentinoids NMU. In Spain the prevalence of past 90 days GABA analog NMU was: 344.4, 95% (CI 204.8-484.0), with male predominance. Those who non-medically use GABA analogs had a higher prevalence of lifetime chronic pain, lifetime illicit drug use, and previous substance abuse treatment. In Spain, 20% of respondents who ever have used gabapentinoids, reported a lifetime NMU; the prevalence was higher for pregabalin 624 (6.2%) than for gabapentin 444 (4.4%). The main reasons for use were to self-treat pain and other medical conditions. Conclusions: The risk of NMU of gabapentinoids should not be neglected. Subjects with a history of chronic pain and lifetime substance use disorders had an increased risk of NMU of gabapentinoids.
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Affiliation(s)
- Francina Fonseca
- Hospital del Mar, Institut de Neuropsiquiatria i Addiccions (INAD), Barcelona, Spain.,Grup de Recerca en Addiccions, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.,Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Spain
| | - William Lenahan
- Rocky Mountain Poison and Drug Safety, Denver Health and Hospital Authority, Denver, CO, United States
| | - Richard C Dart
- Rocky Mountain Poison and Drug Safety, Denver Health and Hospital Authority, Denver, CO, United States
| | - Esther Papaseit
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol (HUGTP-Germans Trias i Pujol Research Institute), Badalona, Spain.,Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Spain
| | - Paul I Dargan
- Clinical Toxicology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.,Clinical Toxicology, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - David M Wood
- Clinical Toxicology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.,Clinical Toxicology, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - Marilena Guareschi
- Association for the Application of Neuroscientific Knowledge to Social Aims (AU-CNS), Lucca, Italy
| | - Icro Maremmani
- Vincent P. Dole Research Group, Santa Chiara University Hospital, University of Pisa, Pisa, Italy
| | - Marc Auriacombe
- Addiction Psychiatry Department, University of Bordeaux, Bordeaux, France.,Addiction Team, Sanpsy Centre National de la Recherche Scientifique (CNRS) USR 3413, Bordeaux, France.,Pôle Addictologie et Filière Régionale, Centre Hospitalier (CH) Charles Perrens and Centre Hospitalier Universitaire (CHU) de Bordeaux, Bordeaux, France
| | - Magí Farré
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol (HUGTP-Germans Trias i Pujol Research Institute), Badalona, Spain.,Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Spain
| | - Norbert Scherbaum
- LVR-Hospital Essen, Department of Psychiatry and Psychotherapy, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Marta Torrens
- Hospital del Mar, Institut de Neuropsiquiatria i Addiccions (INAD), Barcelona, Spain.,Grup de Recerca en Addiccions, Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.,Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Spain
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Abstract
BACKGROUND A 2017 systematic review (SR) identified 59 studies examining gabapentinoid (pregabalin and gabapentin) misuse/abuse. Evidence of gabapentinoid misuse/abuse has since grown substantially. OBJECTIVE Update previous SR and describe new insights regarding gabapentinoid abuse. METHODS A SR of PubMed was conducted to identify studies published from 7/29/2016-8/31/2020. Four searches were performed using the following terms: "gabapentin [MeSH] OR pregabalin [MeSH] OR gabapentinoid" AND one of the following substance misuse/abuse-related terms: "substance-related disorders [MeSH]", "overdose", "abuse", or "misuse". Clinicaltrials.gov and the Cochrane Library database were searched to identify ongoing studies or similar SRs. Reference lists of included studies were reviewed to identify additional literature. All studies with novel data related to pregabalin and/or gabapentin abuse, misuse, or overdose conducted during the study period were included. Articles not written in English, review articles, and animal studies were excluded. RESULTS Fifty-five studies were included (29 [52.7%] from North America, 17 [30.9%] Europe, 6 [10.9%] Asia, and 3 [5.5%] Australia). Forty-six observational studies and 10 case reports/series were included (one manuscript included both). Twenty (36.4%) studied gabapentin only, 18 (32.7%) pregabalin only, and 17 (30.9%) both pregabalin/gabapentin. These studies corroborate findings from the previous SR that gabapentinoids are increasingly abused or misused to self-medicate, that gabapentinoids can produce desirable effects alone but are often used concomitantly with other drugs, and that opioid use disorder is the greatest risk factor for gabapentinoid abuse. While the original SR identified the largest studies having been published in Europe, this review identified several more generalisable US studies that have subsequently been conducted. The most concerning finding was increased evidence of associated patient harm, including increased hospital utilisation and opioid-related overdose mortality risk. CONCLUSION Evidence suggests that gabapentinoid misuse/abuse represents a growing trend that is causing significant patient harm. Prescribers should exercise appropriate caution with use in high-risk populations and monitor for signs of misuse or abuse.
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Havens JR, Knudsen HK, Young AM, Lofwall MR, Walsh SL. Longitudinal trends in nonmedical prescription opioid use in a cohort of rural Appalachian people who use drugs. Prev Med 2020; 140:106194. [PMID: 32652132 PMCID: PMC7680378 DOI: 10.1016/j.ypmed.2020.106194] [Citation(s) in RCA: 4] [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: 02/05/2019] [Revised: 06/13/2020] [Accepted: 07/05/2020] [Indexed: 01/22/2023]
Abstract
Rural Appalachia remains an epicenter of the prescription opioid epidemic. In 2008, a cohort study was undertaken to examine longitudinal trends in nonmedical prescription opioid use (NMPOU). Eight waves of data (2008-2020) from the Social Networks among Appalachian People (SNAP) cohort were utilized for the current analysis. Only those who reported recent (past 6-month) NMPOU at baseline are included (n = 498, 99%). Mixed-effects logistic regression was used to model factors associated with NMPOU over time. Recent NMPOU declined significantly over the past decade (p < .001). However, 54.1% of participants still engaged in NMPOU at their most recent follow-up. Receipt of benefits for a physical or mental disability (adjusted odds ratio [aOR]: 3.11, 95% Confidence Interval [CI]: 1.98, 4.90) and self-described poor health status (aOR: 3.67, 95% CI: 1.61, 8.37) were both associated with NMPOU. All treatment modalities (methadone maintenance, residential, outpatient counseling) tested in the model, with the notable exception of detoxification, were associated with significantly lower odds of NMPOU. Although significant declines in prescription opioid misuse were observed in the cohort, more than half of all participants were engaged in NMPOU more than a decade after entering the study. Substance use disorder (SUD) treatment (excluding detoxification) was shown associated with reduced odds of continued NMPOU; therefore, increasing access to evidence-based treatments should be a priority in rural areas affected by the ongoing opioid epidemic.
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Affiliation(s)
- Jennifer R Havens
- Center on Drug and Alcohol Use, University of Kentucky College of Medicine, United States of America; Department of Behavioral Science, University of Kentucky College of Medicine, United States of America.
| | - Hannah K Knudsen
- Center on Drug and Alcohol Use, University of Kentucky College of Medicine, United States of America; Department of Behavioral Science, University of Kentucky College of Medicine, United States of America
| | - April M Young
- Center on Drug and Alcohol Use, University of Kentucky College of Medicine, United States of America; Department of Epidemiology, University of Kentucky College of Public Health, United States of America
| | - Michelle R Lofwall
- Center on Drug and Alcohol Use, University of Kentucky College of Medicine, United States of America; Department of Behavioral Science, University of Kentucky College of Medicine, United States of America
| | - Sharon L Walsh
- Center on Drug and Alcohol Use, University of Kentucky College of Medicine, United States of America; Department of Behavioral Science, University of Kentucky College of Medicine, United States of America
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O’Hare C, Rahman T, Williams NT. Treatment of Chronic Refractory Cough in Adults: Focus on Neuromodulators and Other Therapeutic Modalities. J Pharm Technol 2020. [DOI: 10.1177/8755122520954866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Objective: To evaluate the literature and educate health care professionals about the different management options for chronic refractory cough (CRC). Data Sources: Searches were performed through MEDLINE (1966 to July 2020) using OVID and EBSCOhost and EMBASE (1947 to July 2020) using OVID. Search terms included chronic cough, neurogenic cough, neuromodulators, chronic cough management, and chronic cough treatment. References of all relevant articles were further used to obtain additional articles. Study Selection and Data Extraction: This review includes articles in the English language and human trial literature. Twenty-three trials explored the use of oral neuromodulators in the management of CRC. Data Synthesis: CRC is a poorly understood disease that may have a complex neuropathic etiology. Oral neuromodulators, such as amitriptyline, baclofen, gabapentin, and pregabalin, continue to be the most commonly used agents for the management of CRC. Alternative pharmacological therapies such as botulinum toxin, anesthetic agents (benzonatate, lidocaine), and narcotic agents have efficacy data, and further research into effective doses and routes of administration is warranted. Alternative nonpharmacologic therapies more commonly used included speech pathology treatment. Conclusion: Several medication and alternative treatment interventions may be effective in managing CRC. Current studies used wide dosing and titration strategies, making it challenging to standardize therapy. No consistent method of assessing cough reflex was used between studies, as well as a lack of consistent randomization and small sample sizes. Additional research is needed to standardize treatment durations, optimum doses, and place in therapy of the available interventions in the management of CRC.
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Affiliation(s)
- Caroline O’Hare
- Southwestern Oklahoma State University, Weatherford, OK, USA
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Harding BN, Wiggins KL, Jensen PN, McKnight B, Psaty BM, Heckbert SR, Floyd JS. Opioid, gabapentinoid, and nonsteroidal anti-inflammatory medication use and the risks of atrial fibrillation and supraventricular ectopy in the Multi-Ethnic Study of Atherosclerosis. Pharmacoepidemiol Drug Saf 2020; 29:1175-1182. [PMID: 32558036 PMCID: PMC7933496 DOI: 10.1002/pds.5036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 03/25/2020] [Accepted: 05/07/2020] [Indexed: 11/11/2022]
Abstract
PURPOSE Opioids, gabapentinoids, and nonsteroidal anti-inflammatory drugs (NSAIDs) may have adverse cardiovascular effects. We evaluated whether these medications were associated with incident clinically detected atrial fibrillation (AF) or monitor-detected supraventricular ectopy (SVE), including premature atrial contractions (PACs) and supraventricular tachycardia (SVT). METHODS We used data from the Multi-Ethnic Study of Atherosclerosis (MESA), a cohort study that enrolled 6814 Americans without clinically detected cardiovascular disease in 2000 to 2002. At the 2016 to 2018 examination, 1557 individuals received ambulatory electrocardiographic (ECG) monitoring. Longitudinal analyses investigated time-varying medication exposures at the first five exams (through 2011) in relation to incident clinically detected AF through 2015 using Cox proportional hazards regression models. Cross-sectional analyses investigated medication exposures at 2016 to 2018 examination and the risk of monitor-detected SVE using linear regression models. RESULTS The longitudinal cohort included 6652 participants. During 12.4 years of mean follow-up, 982 participants (14.7%) experienced incident clinically detected AF. Use of opioids, gabapentinoids, and NSAIDs were not associated with incident AF. The cross-sectional analysis included 1435 participants with ECG monitoring. Gabapentinoid use was associated with an 84% greater average frequency of PACs/hour (95% CI, 25%-171%) and a 44% greater average number of runs of SVT/day (95% CI, 3%-100%). No associations were found with use of opioids or NSAIDs in cross-sectional analyses. CONCLUSIONS In this study, gabapentinoid use was associated with SVE. Given the rapid increase in gabapentinoid use, additional studies are needed to clarify whether these medications cause cardiovascular complications.
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Affiliation(s)
- Barbara N Harding
- Cardiovascular Health Research Unit and Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Kerri L Wiggins
- Cardiovascular Health Research Unit and Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Paul N Jensen
- Cardiovascular Health Research Unit and Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Barbara McKnight
- Cardiovascular Health Research Unit and Department of Biostatistics, University of Washington, Seattle, Washington, USA
| | - Bruce M Psaty
- Cardiovascular Health Research Unit and Department of Medicine, University of Washington, Seattle, Washington, USA
- Cardiovascular Health Research Unit and Department of Epidemiology, University of Washington, Seattle, Washington, USA
- Cardiovascular Health Research Unit, Departments of Medicine and Epidemiology, University of Washington, Seattle, Washington, USA
- Kaiser Permanente Washington Health Research Institute, Seattle, Washington, USA
| | - Susan R Heckbert
- Cardiovascular Health Research Unit and Department of Epidemiology, University of Washington, Seattle, Washington, USA
| | - James S Floyd
- Cardiovascular Health Research Unit and Department of Medicine, University of Washington, Seattle, Washington, USA
- Cardiovascular Health Research Unit and Department of Epidemiology, University of Washington, Seattle, Washington, USA
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Buttram ME, Kurtz SP. Descriptions of Gabapentin Misuse and Associated Behaviors among a Sample of Opioid (Mis)users in South Florida. J Psychoactive Drugs 2020; 53:47-54. [PMID: 32748701 DOI: 10.1080/02791072.2020.1802087] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Gabapentin has received increased attention due to a growing number of reports of misuse and diversion. However, significant details about gabapentin misuse are scant. Data are drawn from a mixed-methods study examining gabapentin misuse in South Florida. The sample includes 49 respondents who were age 18 or over and reported past year use of illicit opioids and/or the misuse of prescription opioid medications, as well as, recent (past 90 days) gabapentin misuse. Respondents were female (40.8%), Hispanic (30.6%), Black (16.3%), white (49.0%), and other race/ethnicity (4.1%). Mean age was 37.6. Many respondents (43%) misused gabapentin without ever receiving a prescription and 14% misused prior to being prescribed. Mean frequency of recent misuse was 25.4 days and included a mean of 51.65 pills/doses. Prevalent routes of administration included swallowing (85.7%) and snorting (10.2%). Gabapentin misuse occurred concomitantly with any opioid (44.9%), benzodiazepines (38.8%), alcohol (24.5%), and powder cocaine (24.5), among others. Respondents' descriptions indicate that gabapentin produces feelings reminiscent of alcohol intoxication or opioid-induced euphoria, but for some it produces no noticeable effect or only alleviates pain. Greater understanding of gabapentin misuse, especially associated behaviors and concomitant use is needed to inform prevention and intervention efforts, and to guide policy approaches.
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Affiliation(s)
- Mance E Buttram
- Center for Applied Research on Substance Use and Health Disparities, Nova Southeastern University, Miami, FL, USA
| | - Steven P Kurtz
- Center for Applied Research on Substance Use and Health Disparities, Nova Southeastern University, Miami, FL, USA
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Billig JI, Sears ED, Gunaseelan V, Santosa KB, Iwashyna TJ, Englesbe MJ, Brummett CM, Waljee JF. Inappropriate Preoperative Gabapentinoid Use Among Patients With Carpal Tunnel Syndrome. J Hand Surg Am 2020; 45:677-689.e5. [PMID: 32487365 PMCID: PMC7453721 DOI: 10.1016/j.jhsa.2020.04.011] [Citation(s) in RCA: 4] [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: 09/04/2019] [Revised: 03/18/2020] [Accepted: 04/15/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE Gabapentinoids are commonly prescribed for the treatment of neuropathic pain but are not recommended for the primary treatment of carpal tunnel syndrome (CTS). We sought (1) to investigate the preoperative use of gabapentinoids for the treatment of CTS and (2) to determine whether preoperative exposure is associated with persistent gabapentinoid and opioid use after carpal tunnel release. METHODS We performed a retrospective cohort study using IBM MarketScan Research Databases (2010-2017) of patients who did not fill a gabapentinoid or opioid prescription within 3 months of a new CTS diagnosis undergoing surgical release. Our primary outcomes included preoperative gabapentinoid prescription fills associated with CTS and persistent prescription fills of gabapentinoids and opioids at 91 to 180 days after surgery. Multivariable logistic regression models were used to evaluate the association between patient-level factors and persistent gabapentinoid and opioid use. RESULTS Of the 56,593 patients without a previous gabapentinoid or opioid prescription prior to diagnosis of CTS, 3,474 patients (6%) filled a gabapentinoid prescription before carpal tunnel release. Overall, 835 patients (24% of the preoperative users) continued to fill gabapentinoid prescriptions at 91 to 180 days after surgery. Of the preoperative gabapentinoid users, 20% (702 patients) continued to fill opioid prescriptions at 91 to 80 days after release. After adjusting for patient characteristics, preoperative gabapentinoid use was associated with increased odds of persistent postoperative gabapentinoid use (preoperative gabapentinoid, 22% adjusted probability; 95% confidence interval [95% CI], 20.3%-23.0%, no preoperative gabapentinoid use, 1%; 95% CI, 1.2%-1.4%) and persistent postoperative opioid use (preoperative gabapentinoid, 18% adjusted probability; 95% CI, 17%-20%), no preoperative gabapentinoid, 9%; 95% CI, 8.6%-9.1%). CONCLUSIONS Despite a lack of evidence to support the use of gabapentinoids for CTS, 6% of patients are prescribed a gabapentinoid prior to surgery, and prolonged use is common. Given the effectiveness of surgical release and the risks associated with gabapentinoids, greater attention is needed to ensure that gabapentinoids are prescribed appropriately, avoided when possible, and stopped after surgery. TYPE OF STUDY/LEVEL OF EVIDENCE Prognostic II.
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Affiliation(s)
- Jessica I Billig
- VA/National Clinician Scholars Program, VA Center for Clinical Management Research, VA Ann Arbor Healthcare System, Section of Plastic Surgery, Department of Surgery, Michigan Medicine, Ann Arbor, MI; Section of Plastic Surgery, Department of Surgery, Ann Arbor, MI
| | - Erika D Sears
- Section of Plastic Surgery, Department of Surgery, Ann Arbor, MI; VA Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI
| | | | | | | | | | - Chad M Brummett
- Department of Anesthesiology, Michigan Medicine, Ann Arbor, MI
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A Practical Approach to Acute Postoperative Pain Management in Chronic Pain Patients. J Perianesth Nurs 2020; 35:564-573. [PMID: 32660812 DOI: 10.1016/j.jopan.2020.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/27/2020] [Accepted: 03/02/2020] [Indexed: 01/08/2023]
Abstract
In the United States, more than 100 million people suffer from chronic pain. Among patients presenting for surgery, about one in four have chronic pain. Acute perioperative pain management in this population is challenging because many patients with chronic pain require long-term opioids for the management of this pain, which may result in tolerance, physical dependence, addiction, and opioid-induced hyperalgesia. These challenges are compounded by the ongoing opioid epidemic that has resulted in calls for a reduction in opioid use, with a concurrent increase in the number of patients with chronic opioid exposure presenting for surgery. This article aims to summarize practical considerations for acute postoperative pain management in patients with chronic pain conditions. A patient-centered acute pain management plan, including nonopioid analgesics, regional anesthesia, and careful selection of opioid medications, can lead to adequate analgesia and satisfaction with care. Also, a meticulous rotation from one opioid to another may decrease opioid requirement, increase analgesic effectiveness, and improve satisfaction with care.
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50
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Deer T, Sayed D, Michels J, Josephson Y, Li S, Calodney AK. A Review of Lumbar Spinal Stenosis with Intermittent Neurogenic Claudication: Disease and Diagnosis. PAIN MEDICINE 2020; 20:S32-S44. [PMID: 31808530 PMCID: PMC7101166 DOI: 10.1093/pm/pnz161] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Objective Lumbar spinal stenosis (LSS) is a degenerative spinal condition affecting nearly 50% of patients presenting with lower back pain. The goal of this review is to present and summarize the current data on how LSS presents in various populations, how it is diagnosed, and current therapeutic strategies. Properly understanding the prevalence, presentation, and treatment options for individuals suffering from LSS is critical to providing patients the best possible care. Results The occurrence of LSS is associated with advanced age. In elderly patients, LSS can be challenging to identify due to the wide variety of presentation subtleties and common comorbidities such as degenerative disc disease. Recent developments in imaging techniques can be useful in accurately identifying the precise location of the spinal compression. Treatment options can range from conservative to surgical, with the latter being reserved for when patients have neurological compromise or conservative measures have failed. Once warranted, there are several surgical techniques at the physician’s disposal to best treat each individual case.
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Affiliation(s)
- Timothy Deer
- The Spine and Nerve Center of the Virginias, Charleston, West Virginia
| | - Dawood Sayed
- The University of Kansas Medical Center, Kansas City, Kansas
| | | | | | - Sean Li
- Premier Pain Centers, Shrewsbury, New Jersey
| | - Aaron K Calodney
- Precision Spine Care, Texas Spine and Joint Hospital, Tyler, Texas, USA
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