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Björnsson M, Acharya C, Strandgården K, Tiberg F. Population Pharmacokinetic Analysis Supports Initiation Treatment and Bridging from Sublingual Buprenorphine to Subcutaneous Administration of a Buprenorphine Depot (CAM2038) in the Treatment of Opioid Use Disorder. Clin Pharmacokinet 2023; 62:1427-1443. [PMID: 37584841 PMCID: PMC10520114 DOI: 10.1007/s40262-023-01288-6] [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] [Accepted: 07/17/2023] [Indexed: 08/17/2023]
Abstract
BACKGROUND AND OBJECTIVE In treating opioid use disorder (OUD), subcutaneous (SC) extended-release buprenorphine (BPN) depots, e.g., CAM2038, have been shown to provide smaller and less frequent fluctuations in BPN plasma concentrations and pharmacodynamic responses, improve outcomes, reduce treatment burden, and lower risks of misuse and diversion compared to daily sublingual (SL) BPN. This analysis characterized the pharmacokinetics (PK) of BPN following intravenous and SL administration, and administration of SC CAM2038 weekly and monthly. METHODS Pharmacokinetic data from two Phase 1 and two Phase 2 trials in healthy participants and participants with OUD, respectively, were used to develop a population PK model using non-linear mixed effects modelling. The analysis included data from 252 participants and 10,658 BPN observations. RESULTS The disposition of BPN was best described by a three-compartment model with first-order elimination, and absorption of SL BPN and SC CAM2038 weekly and monthly by dual parallel absorption pathways. Model diagnostics indicated good predictive performance of BPN concentrations. Buprenorphine plasma concentration-time profiles were simulated for treatment initiation, switching from SL BPN to CAM2038 weekly and monthly, and tapering after interrupting treatment with CAM2038. Simulations predicted CAM2038 weekly and monthly doses that provided BPN plasma maximum concentration (Cmax) and trough concentration (Ctrough) values at steady state within those observed following SL BPN administration. CONCLUSIONS This population PK model supports the use of CAM2038 doses as individualized treatment for OUD across different treatment stages, including initiation, switching from SL BPN according to established dose conversion schedules, and tapering. TRIAL REGISTRATIONS ISRCTN41550730 (05/19/2014), ISRCTN24987553 (07/29/2014), NCT02611752 (11/23/2015), NCT02710526 (03/16/2016).
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Abstract
Opioid maintenance treatment is the first-line approach in opioid dependence. Both the full opioid agonist methadone (MET) and the partial agonist buprenorphine (BUP) are licensed for the treatment of opioid dependence. BUP differs significantly from MET in its pharmacology, side effects, and safety issues. For example, the risk of respiratory depression is lower than with MET. The risk of diversion and injection of BUP have been reduced by also making it available as a tablet containing the opioid antagonist naloxone. This review summarizes the clinical effects of BUP and examines possible factors that can support decisions regarding the use of BUP or MET in opioid-dependent people.
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Affiliation(s)
- Michael Soyka
- Medical Park Chiemseeblick, Bernau, Germany; Psychiatric Hospital, University of Munich, Munich, Germany
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Wilson‐Poe AR, Morón JA. The dynamic interaction between pain and opioid misuse. Br J Pharmacol 2018; 175:2770-2777. [PMID: 28602044 PMCID: PMC6016619 DOI: 10.1111/bph.13873] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 04/21/2017] [Accepted: 05/09/2017] [Indexed: 12/22/2022] Open
Abstract
In 2014, drug overdose surpassed automobile accidents as the number one cause of accidental death for the first time in the history of the United States. The overdose epidemic is largely driven by opioids, and genuine prescription opioid analgesics play the biggest role in this phenomenon. Despite advancements in abuse deterrent formulations, prescription drug monitoring programmes and clinical assessments for the detection of abuse potential, drug overdoses continue to escalate. The Center for Disease Control has recently issued new guidelines for opioid prescription, yet even these recommendations have their shortcomings. Furthermore, undertreated pain in patients with comorbid substance use disorder poses a major clinical challenge, particularly for patients on opioid replacement therapy. Despite the seemingly obvious interaction between the presence of pain and the abuse of pain-relieving opioids, there is surprisingly little mechanistic data to further our understanding of this vitally important topic. The need for novel pain interventions that minimize abuse liability is critical. Without a fundamental characterization of pain neurobiology and the interaction between chronic pain and the brain's reward system, we are unlikely to make progress in the alleviation of the opioid epidemic. LINKED ARTICLES This article is part of a themed section on Emerging Areas of Opioid Pharmacology. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.14/issuetoc.
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Affiliation(s)
- Adrianne R Wilson‐Poe
- Pain Center, Department of AnesthesiologyWashington University School of MedicineSt. LouisMOUSA
| | - Jose A Morón
- Pain Center, Department of AnesthesiologyWashington University School of MedicineSt. LouisMOUSA
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Maremmani I, Rolland B, Somaini L, Roncero C, Reimer J, Wright N, Littlewood R, Krajci P, Alho H, D'Agnone O, Simon N. Buprenorphine dosing choices in specific populations: review of expert opinion. Expert Opin Pharmacother 2016; 17:1727-31. [PMID: 27376622 DOI: 10.1080/14656566.2016.1209486] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Treatment of opioid dependence with buprenorphine improves outcomes. Typical dosing ranges for all patients from clinical evidence and as defined in the product information are wide. For specific groups with complex clinical scenarios, there is no clear consensus on dosing choices to achieve best possible outcomes. AREAS COVERED The doses of buprenorphine used in 6 European countries was reviewed. A review of published evidence supported rapid induction with buprenorphine and the benefits of higher doses but did not identify clearly useful guidance on dosing choices for groups with complex clinical scenarios. An expert group of physicians with experience in addiction care participated in a discussion meeting to share clinical practice experience and develop a consensus on dosing choices. EXPERT OPINION There was general agreement that treatment outcomes can be improved by optimising buprenorphine doses in specific subgroups. Specific groups in whom buprenorphine doses may be too low and who could have better outcomes with optimised dosing were identified on the basis of clinical practice experience. These groups include people with severe addiction, high tolerance to opioids, and psychiatric comorbidities. In these groups it is recommended to review dosing choices to ensure buprenorphine dosing is sufficient.
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Affiliation(s)
- Icro Maremmani
- a Department of Neurosciences, Santa Chiara University Hospital , University of Pisa , Pisa , Italy
| | - Benjamin Rolland
- b Departments of Addiction Medicine and Pharmacology, INSERM , University Hospital of Lille , Lille , France
| | | | - Carlos Roncero
- d Addiction and Dual Diagnosis Unit, Department of Psychiatry , Vall d'Hebron Hospital , Barcelona , Spain
| | - Jens Reimer
- e Director at Centre for Interdisciplinary Addiction Research , University Medical Centre Hamburg-Eppendorf, Martini Strasse , Germany
| | - Nat Wright
- f Spectrum Community Health CIC , Wakefield , UK
| | | | - Peter Krajci
- h Division of Mental Health and Addiction, Department of Substance Use Disorder Treatment , Oslo University Hospital , Oslo , Norway
| | - Hannu Alho
- i HA, Clinicum, University of Helsinki and University Hospital , Helsinki , Finland
| | - Oscar D'Agnone
- j Faculty of Medical and Human Sciences, Institute of Brain Behaviour and Mental Health , University of Manchester , Manchester , UK
| | - Nicolas Simon
- k Service de Pharmacologie Clinique, Sainte Marguerite Hospital , Marseille , France.,l Department of Clinical Pharmacology , Medical School of Marseilles , Marseille , France.,m Aix Marseille University, INSERM, UMR 912 IRD, SESSTIM , Marseille , France
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Webster L, Hjelmström P, Sumner M, Gunderson EW. Efficacy and safety of a sublingual buprenorphine/naloxone rapidly dissolving tablet for the treatment of adults with opioid dependence: A randomized trial. J Addict Dis 2016; 35:325-338. [DOI: 10.1080/10550887.2016.1195608] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Jacobs P, Ang A, Hillhouse MP, Saxon AJ, Nielsen S, Wakim PG, Mai BE, Mooney LJ, S Potter J, Blaine JD. Treatment outcomes in opioid dependent patients with different buprenorphine/naloxone induction dosing patterns and trajectories. Am J Addict 2015; 24:667-75. [PMID: 26400835 PMCID: PMC5322942 DOI: 10.1111/ajad.12288] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 07/24/2015] [Accepted: 08/17/2015] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Induction is a crucial period of opioid addiction treatment. This study aimed to identify buprenorphine/naloxone (BUP) induction patterns and examine their association with outcomes (opioid use, retention, and related adverse events [AEs]). METHODS The secondary analysis of a study of opioid-dependent adults seeking treatment in eight treatment settings included 740 participants inducted on BUP with flexible dosing. RESULTS Latent class analysis models detected six distinctive induction trajectories: bup1-started and remained on low; bup2-started low, shifted slowly to moderate; bup3-started low, shifted quickly to moderate; bup4-started high, shifted to low; bup5-started and remained on moderate; bup6-started moderate, shifted to high dose (Fig. 1). Baseline characteristics, including Clinical Opioid Withdrawal Scale (COWS), were important predictors of retention. When controlled for the baseline characteristics, bup6 participants were three times less likely to drop out the first 7 days than bup1 participants (adjusted hazard ratio (aHR) = .28, p = .03). Opioid use and AEs were similar across trajectories. Participants on ≥16 mg BUP compared to those on <16 mg at Day 28 were less likely to drop out (aHR = .013, p = .001) and less likely to have AEs during the first 28 days (aOR = .57, p = .03). DISCUSSION AND CONCLUSIONS BUP induction dosing was guided by an objective measure of opioid withdrawal. Participants with higher baseline COWS whose BUP doses were raised more quickly were less likely to drop out in the first 7 days than those whose doses were raised slower. SCIENTIFIC SIGNIFICANCE This study supports the use of an objective measure of opioid withdrawal (COWS) during BUP induction to improve retention early in treatment.
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Affiliation(s)
| | | | | | | | - Suzanne Nielsen
- University of New South Wales, National Drug and Alcohol Research Centre, Sydney, Australia
| | - Paul G Wakim
- NIDA Center for the Clinical Trials Network, Rockville, Maryland
| | - Barbara E Mai
- The Uniformed Services University of the Health Sciences, Bethesda, Maryland
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Mauger S, Fraser R, Gill K. Utilizing buprenorphine-naloxone to treat illicit and prescription-opioid dependence. Neuropsychiatr Dis Treat 2014; 10:587-98. [PMID: 24741316 PMCID: PMC3984058 DOI: 10.2147/ndt.s39692] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES To review current evidence on buprenorphine-naloxone (bup/nx) for the treatment of opioid-use disorders, with a focus on strategies for clinical management and office-based patient care. QUALITY OF EVIDENCE Medline and the Cochrane Database of Systematic Reviews were searched. Consensus reports, guidelines published, and other authoritative sources were also included in this review. Apart from expert guidelines, data included in this review constitute level 1 evidence. FINDINGS Bup/nx is a partial μ-opioid agonist combined with the opioid antagonist naloxone in a 4:1 ratio. It has a lower abuse potential, carries less stigma, and allows for more flexibility than methadone. Bup/nx is indicated for both inpatient and ambulatory medically assisted withdrawal (acute detoxification) and long-term substitution treatment (maintenance) of patients who have a mild-to-moderate physical dependence. A stepwise long-term substitution treatment with regular monitoring and follow-up assessment is usually preferred, as it has better outcomes in reducing illicit opioid use, minimizing concomitant risks such as human immunodeficiency virus and hepatitis C transmission, retaining patients in treatment and improving global functioning. CONCLUSION Bup/nx is safe and effective for opioid detoxification and substitution treatment. Its unique pharmaceutical properties make it particularly suitable for office-based maintenance treatment of opioid-use disorder.
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Affiliation(s)
- Sofie Mauger
- Department of Psychiatry, McGill University, Montreal, QC, Canada
| | - Ronald Fraser
- Department of Psychiatry, McGill University, Montreal, QC, Canada ; Addictions Unit, McGill University Health Centre, Montreal, QC, Canada
| | - Kathryn Gill
- Department of Psychiatry, McGill University, Montreal, QC, Canada ; Addictions Unit, McGill University Health Centre, Montreal, QC, Canada
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Tian JN, Ho IK, Tsou HH, Fang CP, Hsiao CF, Chen CH, Tan HKL, Lin L, Wu CS, Su LW, Huang CL, Yang YH, Liu ML, Chen YT, Liu SC, Hsu YT, Kuo HW, Liu CT, Yang YT, Chen AC, Shih YH, Liu YL. UGT2B7 genetic polymorphisms are associated with the withdrawal symptoms in methadone maintenance patients. Pharmacogenomics 2012; 13:879-88. [PMID: 22676193 DOI: 10.2217/pgs.12.69] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
AIM To test whether the genetic polymorphisms within the gene encoding the UGT2B7 gene may have an impact on methadone treatment. MATERIALS & METHODS Twelve SNPs in UGT2B7 were selected. 366 methadone maintenance treatment patients in Taiwan were recruited and genotyped. RESULTS In a genotype recessive model, rs6600879, rs6600880, rs4554144, rs11940316, rs7438135, rs7662029, rs7668258, rs7439366, rs4292394 and rs6600893 showed significant associations with severity of withdrawal symptoms (permutation p < 0.002), pupil size (permutation p < 0.048) and tremor (permutation p < 0.008). Haplotypes of GATCAGCCGC and CTCTGATTCT were significantly associated with pupil size score and tremor score (p < 0.034). CONCLUSION These results suggest that SNPs of the UGT2B7 gene may play important roles in opiate withdrawal symptoms.
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Affiliation(s)
- Jia-Ni Tian
- Division of Mental Health & Addiction Medicine, Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 350, Taiwan
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