Healthy Clinical Trial - Effect of Spinal Ketorolac After Acute Opioid

Status Terminated

Clinical Trial Summary

This research study is being done because pain is a significant problem for patients with a variety of medical problems and following surgery or traumatic injury. Currently available pain medications may not treat all types of pain or may treat pain only at doses that produce side effects and complications. The medication in this study may have a role in better treatment of pain. The goals of this study are to see if a dose of ketorolac (non-narcotic, pain reliever), given into the fluid in the back near the spine has any effect on pain or discomfort in the skin sensation that will take place after applying capsaicin (chili pepper) cream. The sunburn-like sensation that people experience after having capsaicin cream applied is similar to, but much milder than, the pain that some people have after surgery and after certain types of nerve injuries. This study will test the effects of combining two medications that are often given together to control postoperative pain or pain from a nerve injury. The investigators are especially interested in answering two questions about the effects of ketorolac (non-narcotic pain reliever) and remifentanil (intravenous [IV] narcotic painkiller):

1. How much does remifentanil (narcotic painkiller) affect the sunburn-like painful area on your skin, which develops after applying capsaicin cream?

2. What pain relieving effects does spinal ketorolac have when given with IV remifentanil?

Clinical Trial Description

Intravenous (IV) remifentanil stimulates spinal COX activity, leading to increased Cerebrospinal fluid CSF) prostaglandin E2 (PGE2) concentrations and areas of capsaicin-induced mechanical hypersensitivity after remifentanil infusion, and these effects will be blocked by intrathecal ketorolac.

Areas of mechanical hyperalgesia and allodynia will be established by topical capsaicin + intermittent heat in healthy volunteers, who will be randomized to receive intrathecal saline or ketorolac during remifentanil infusion, with primary outcome measure area of hyperalgesia and secondary outcome measure Cerebrospinal fluid (CSF) prostaglandin E2 (PGE2) concentration after stopping remifentanil. ;

Study Design

Related Conditions & MeSH terms

Healthy

Clinical Trial Details

NCT number	NCT00693160
Study type	Interventional
Source	Wake Forest University Health Sciences
Contact
Status	Terminated
Phase	Phase 2
Start date	December 2007
Completion date	January 2011

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Effect of Spinal Ketorolac After Acute Opioid Exposure

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms