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Study details
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Reducing Perioperative Oxidative Stress to Prevent Postoperative Chronic Pain Following Total Knee Arthroplasty

Vanderbilt University Medical Center
NCT IDNCT06083480ClinicalTrials.gov data as of Apr 2026
Phase

Phase 4

Target enrollment

148

Study length

about 4.3 years

Ages

50+

Locations

1 site in TN

About this study

Researchers are testing whether a treatment called GlyNAC (a combination of glycine and n-acetylcysteine) reduces oxidative stress and chronic post surgical pain in people undergoing total knee arthroplasty. The trial will last for 1576 days.

Based on ClinicalTrials.gov records.

What participants do

  • 1.Take GlyNAC (combination of glycine and n-acetylcysteine)
  • 2.Take Placebo
PhasePhase 4
Drugn-acetylcysteine)
Routeoral
Primary goalNumeric Rating Scale (NRS) Rating of Worst Pain in the past 24 hours

Participation effort

Estimated from trial records. Details can vary by site.

Time + visits
Low10%
Logistics
Moderate50%

Logistics difficulty varies by site location and availability.

Trial highlights

Treatment details

Auto-extracted from trial records to preview treatments and outcomes.

Drug classes

acetylcysteine, BLOOD AND BLOOD FORMING ORGANS

Drug routes

oral (Oral Capsule)

Endpoints

Primary: Numeric Rating Scale (NRS) Rating of Worst Pain in the past 24 hours

Secondary: Knee Injury and Osteoarthritis Outcome Score for Joint Replacement (KOOS-JR), Mean change in McGill Pain Questionnaire-2 (MPQ-2) ratings of knee pain for average pain over past week of measurement., Numeric Rating Scale (NRS) Rating of Worst Pain in the past 24 hours, Numeric Rating Scale of Average Pain in the past 24 hours, Numeric Rating Scale of Least Pain in the past 24 hours, PROMIS Short Form V1.0 - Pain Interference 8a scale

Body systems

Musculoskeletal