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      Sublingual, transdermal and intravenous patient-controlled analgesia for acute post-operative pain: systematic literature review and mixed treatment comparison.

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          Abstract

          To conduct a systematic literature review (SLR) and quantitative analysis to assess the comparative efficacy and safety of the sufentanil sublingual tablet system (SSTS) against other available patient controlled analgesia (PCA) options for post-operative analgesia.

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          Most cited references42

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          Chronic postsurgical pain in Europe: An observational study.

          Chronic postsurgical pain (CPSP) is an important clinical problem. Prospective studies of the incidence, characteristics and risk factors of CPSP are needed.
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            American pain society recommendations for improving the quality of acute and cancer pain management: American Pain Society Quality of Care Task Force.

            The American Pain Society (APS) set out to revise and expand its 1995 Quality Improvement Guidelines for the Treatment of Acute Pain and Cancer Pain and to facilitate improvements in the quality of pain management in all care settings. Eleven multidisciplinary members of the APS with expertise in quality improvement or measurement participated in the update. Five experts from organizations that focus on health care quality reviewed the final recommendations. MEDLINE and Cumulative Index to Nursing and Allied Health Literature databases were searched (1994-2004) to identify articles on pain quality measurement and quality improvement published after the development of the 1995 guidelines. The APS task force revised and expanded recommendations on the basis of the systematic review of published studies. The more than 3000 members of the APS were invited to provide input, and the 5 experts provided additional comments. The task force synthesized reviewers' comments into the final set of recommendations. The recommendations specify that all care settings formulate structured, multilevel systems approaches (sensitive to the type of pain, population served, and setting of care) that ensure prompt recognition and treatment of pain, involvement of patients and families in the pain management plan, improved treatment patterns, regular reassessment and adjustment of the pain management plan as needed, and measurement of processes and outcomes of pain management. Efforts to improve the quality of pain management must move beyond assessment and communication of pain to implementation and evaluation of improvements in pain treatment that are timely, safe, evidence based, and multimodal.
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              Pharmacokinetics and pharmacodynamics of oral oxycodone in healthy human subjects: role of circulating active metabolites.

              In vitro experiments suggest that circulating metabolites of oxycodone are opioid receptor agonists. Clinical and animal studies to date have failed to demonstrate a significant contribution of the O-demethylated metabolite oxymorphone toward the clinical effects of the parent drug, but the role of other putative circulating active metabolites in oxycodone pharmacodynamics remains to be examined. Pharmacokinetics and pharmacodynamics of oxycodone were investigated in healthy human volunteers; measurements included the time course of plasma concentrations and urinary excretion of metabolites derived from N-demethylation, O-demethylation, and 6-keto-reduction, along with the time course of miosis and subjective opioid side effects. The contribution of circulating metabolites to oxycodone pharmacodynamics was analyzed by pharmacokinetic-pharmacodynamic modeling. The human study was complemented by in vitro measurements of opioid receptor binding and activation studies, as well as in vivo studies of the brain distribution of oxycodone and its metabolites in rats. Urinary metabolites derived from cytochrome P450 (CYP) 3A-mediated N-demethylation of oxycodone (noroxycodone, noroxymorphone, and alpha- and beta-noroxycodol) accounted for 45% +/- 21% of the dose, whereas CYP2D6-mediated O-demethylation (oxymorphone and alpha- and beta-oxymorphol) and 6-keto-reduction (alpha- and beta-oxycodol) accounted for 11% +/- 6% and 8% +/- 6% of the dose, respectively. Noroxycodone and noroxymorphone were the major metabolites in circulation with elimination half-lives longer than that of oxycodone, but their uptake into the rat brain was significantly lower compared with that of the parent drug. Pharmacokinetic-pharmacodynamic modeling indicated that the time course of pupil constriction is fully explained by the plasma concentration of the parent drug, oxycodone, alone. The metabolites do not contribute to the central effects, either because of their low potency or low abundance in circulation or as a result of their poor uptake into the brain. CYP3A-mediated N-demethylation is the principal metabolic pathway of oxycodone in humans. The central opioid effects of oxycodone are governed by the parent drug, with a negligible contribution from its circulating oxidative and reductive metabolites.
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                Author and article information

                Journal
                Curr Med Res Opin
                Current medical research and opinion
                Informa UK Limited
                1473-4877
                0300-7995
                May 2017
                : 33
                : 5
                Affiliations
                [1 ] a Grünenthal GmbH , Aachen , Germany.
                [2 ] b Parexel International , Chandigarh , UT , India.
                [3 ] c AcelRx Pharmaceuticals , Redwood City , CA , USA.
                Article
                10.1080/03007995.2017.1294559
                28318323
                0aff4a17-c23f-4e10-a3b3-073fe98972b7
                History

                Administration,analgesia,analgesics,cutaneous,meta-analysis,opioid,pain,patient-controlled,post-operative,sufentanil,systematic literature review

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