Ketamine molecule:

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Ketamine Clinical Trials

The effect of a specific medication or placebo on modulating induced muscle pain

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Id: ACTRN12606000498594

Organisation Name: Dr Helen Slater

Overal Status: Completed

Start Date: 03/12/2006

Brief Summary: The primary aim of this study is to quantitatively measure, in healthy controls, the effects of a pharmacologic agent in attenuating experimentally induced responses simulating the clinical characteristics of lateral epicondylalgia (“tennis elbow”). The primary hypothesis to be tested in this study is: in comparison with a placebo intervention, a pharmacological intervention targeting processes of central sensitisation via blockade of the N-methyl-D-asparate (NMDA) receptor will attenuate the somatosensory and motor effects of experimentally induced pain in healthy control subjects with simulated characteristics of clinical lateral epicondylalgia

Lay version: In the experiment we will investigate what happens to forearm muscle function and pressure pain sensitivity when given a lozenge containing either an active medication or placebo prior to experimentally induced pain in those muscles. These muscles are involved in “tennis elbow” problems in occupational and sporting settings.

What does it involve? This experiment will be conducted over two days taking about 1.5 hour per session. At the first session you will be given a lozenge (either placebo or an active drug) 1 hour prior to undertaking an intense bout of eccentric exercise in your non-dominant arm. One day later, a muscle in your exercised arm will be injected with hypertonic saline. This injection may generate a short period of muscle pain. Before and after each session a number of measures will be taken:
1. Pressure pain sensitivity at sites around forearm muscles and tendons using a device to measure mechanical pressure sensitivity (pressure algometer); 2. muscle strength of specific elbow muscles. These measures will also be repeated at Day 1 during the hypertonic saline-induced pain.

  • Australia

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