Hyperalgesia Clinical Trial
Official title:
The Effect of High-dose Remifentanil on Established Capsaicin-induced Hyperalgesia in Human Volunteers
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.
n/a
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Basic Science
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