Can a nerve stimulator outsmart a placebo for chronic pain?

This trial asks whether continuing BurstDR spinal cord stimulation—a therapy that uses an implanted device to send electrical pulses to the spine—actually relieves chronic pain better than a sham (inactive) stimulation. Adults who already have the device and have experienced good, stable pain relief for at least three months will receive both active and sham stimulation in random order, without knowing which is which. Each person serves as their own comparison, and the study tracks pain levels, satisfaction, sleep, mood, and daily activities to see if the active stimulation truly makes a difference.