Pain relief study halted: did d-cycloserine fail for back pain?
NCT ID NCT03535688
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether D-cycloserine, a drug that affects brain signaling, could reduce pain in people with chronic low back pain that had not responded to other treatments. About 200 adults with at least 6 months of back pain and an average pain score of 4 or higher (on a 0–10 scale) were enrolled. The study was terminated early, so results are limited.
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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
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Locations
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Northwestern University Feinberg School of Medicine
Chicago, Illinois, 60611, United States