Articles: opioid-analgesics.
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Randomized Controlled Trial
METHA-NeP: effectiveness and safety of methadone for neuropathic pain: a controlled randomized trial.
In this randomized, double-blind, parallel placebo-controlled clinical trial, we evaluated the efficacy of methadone as an add-on therapy for people with chronic neuropathic pain (NP). Eighty-six patients were randomly assigned to receive methadone or placebo for 8 weeks. The primary outcome was the proportion of participants achieving at least 30% pain relief from baseline using a 100-mm pain Visual Analogue Scale. ⋯ No serious adverse events or deaths occurred. Discontinuation due to adverse events was reported in 2 participants in the methadone and none in the placebo arm. Methadone use as an add-on to an optimized treatment for NP with first- and/or second-line drugs provided superior analgesia, improved sleep, and enhanced global impression of change, without being associated with significant serious adverse effects that would raise safety concerns.
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Randomized Controlled Trial Comparative Study
A randomized controlled trial to compare the effect of oxycodone and sufentanil on postoperative analgesia and immune function for laparoscopic resection of colorectal cancer.
The purpose of this study is to evaluate the effect of oxycodone and sufentanil on postoperative analgesia and immune function in patients with laparoscopic resection of colorectal cancer (CRC), as well as the serum level of inflammatory cytokine. ⋯ Oxycodone is more effective than sufentanil in alleviating visceral pain, although it does not surpass sufentanil in managing cutting pain. In addition, there is no significant superiority in the effects of oxycodone on immune function and inflammatory cytokine release compared to sufentanil.
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Randomized Controlled Trial
Safety and efficacy of low-dose esketamine weakly opioidized anesthesia in elderly patients with lumbar spinal stenosis undergoing surgery: a prospective, double-blind randomized controlled trial.
The perioperative use of esketamine may reduce opioid use and their adverse effects. We aimed to evaluate the intraoperative safety and efficacy of weak opioidized anesthesia with low-dose esketamine in the treatment of elderly patients with lumbar spinal stenosis undergoing total laminectomy with complete decompression and interbody implant fusion. ⋯ Low-dose esketamine is used for its anti-inflammatory and analgesic effects in lumbar spine surgery of elderly patients. It is beneficial to hemodynamic stabilization and can reduce the incidence of postoperative respiratory depression in elderly patients. Among them, 0.2 mg/kg induction and 0.25 mg/(kg-h) infusion were more effective.
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Randomized Controlled Trial Multicenter Study
Reduction of postoperative pain and opioid consumption by VVZ-149, first-in-class analgesic molecule: A confirmatory phase 3 trial of laparoscopic colectomy.
VVZ-149 is a small molecule that inhibits the glycine transporter type 2 and the serotonin receptor 5-hydroxytryptamine 2 A. In this Phase 3 study, we investigated the efficacy and safety of VVZ-149 as a single-use injectable analgesic for treating moderate to severe postoperative pain after laparoscopic colectomy. ⋯ Trial Number NCT05764525.
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Randomized Controlled Trial
Morphine and hydromorphone pharmacokinetics in human volunteers: population-based modelling of interindividual and opioid-related variability.
Morphine and hydromorphone have differing onsets, magnitudes, and durations of effects and side-effects. Differences between opioids in their interindividual variabilities in pharmacokinetics and pharmacodynamics might influence rational drug selection. Crossover drug studies can provide more informative interindividual variability data than parallel group studies. Using data from a crossover study of i.v. morphine and hydromorphone in healthy volunteers, we tested the hypothesis that morphine and hydromorphone differ in their interindividual pharmacokinetic variability. ⋯ Morphine and hydromorphone did not differ in a statistically significant or clinically meaningful manner in their interindividual pharmacokinetic variability. Interindividual pharmacokinetic variability does not appear a meaningful consideration in the choice between these two opioids.