The Effect of Remifentanil on Established Capsaicin-Induced Hyperalgesia in Human Volunteers

  • STATUS
    Recruiting
  • participants needed
    24
  • sponsor
    Medical University of Vienna
Updated on 22 January 2022
opioid
body mass index
remifentanil
chronic pain
capsaicin
midazolam

Summary

Treatment of chronic pain is a major clinical challenge since chronic pain is frequent and leads to deterioration of quality of life. An injury or wound can lead to long term changes in the nervous system that make the skin more sensitive at and near the injury; this is termed hyperalgesia and occurs through long term depotentiation (LTP), i.e., a change in the synaptic interaction between neurons. Opioids are the gold standard for the symptomatic therapy of moderate to severe pain. Now, in animal studies the investigators have discovered previously unrecognized effects of opioids. Intradermal injection of capsaicin (injection of pepper extract into the skin) is an established pain model in humans. The investigators want to test the influence of remifentanil, an ultra-short acting opioid, on hyperalgesia observed after intradermal capsaicin in human volunteers in a double blind cross-over prospective active placebo controlled clinical trial.

Details
Condition Hyperalgesia
Treatment Midazolam, Remifentanil
Clinical Study IdentifierNCT00789386
SponsorMedical University of Vienna
Last Modified on22 January 2022

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