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Clinical Trial Summary

Chronic low back pain (CLBP) afflicts up to 50 million U.S. adults and is a primary cause of disability and reduced quality of life. The prescription of opioids for chronic low back pain (CLBP) has increased substantially within the past decade in the U.S. As noted by the CDC in their recent Guideline (released in March 2016): "Opioids are commonly prescribed for pain. An estimated 20% of patients presenting to physician offices with noncancer pain symptoms or pain-related diagnoses (including acute and chronic pain) receive an opioid prescription. Interestingly, patients scoring very high on measures of psychological distress tend to be systematically excluded from RCTs, even though this subgroup of patients is highly prevalent within the chronic pain population. This study will provide key information on individual differences in the outcomes of opioid treatment, and its findings should facilitate more effective tailoring of analgesic regimens to individual patient characteristic.


Clinical Trial Description

Changes in pain sensitivity will be examined (i.e., OIH) among subgroups of CLBP patients prescribed oral opioid therapy. Investigators will conduct a moderate-term, double-blind, randomized controlled trial, and use quantitative sensory testing (QST) to evaluate whether changes in pain sensitivity and pain modulation occur as a result of long-term opioid use. Investigators hypothesize that increases in pain sensitivity (i.e., OIH) and maladaptive changes in endogenous pain modulation (i.e., enhanced temporal summation of pain) will occur as a result of long-term opioid use, but that these changes will be observed predominantly among patients with high levels of negative affect and pain-related catastrophizing. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02824276
Study type Interventional
Source Brigham and Women's Hospital
Contact
Status Active, not recruiting
Phase Phase 1
Start date January 6, 2017
Completion date December 30, 2024

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