Plain-English translation of NCT04909138 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
You already have an implanted dorsal root ganglion (DRG) stimulator — a small device that sends mild electrical signals to help control chronic pain. This trial tests whether turning that device on and off in short cycles, rather than keeping it running all the time, works better and helps prevent the pain relief from wearing off over months and years.
Over time, patients using nerve stimulation devices continuously sometimes notice their pain relief slowly fades. This trial is testing whether giving the nerve a break by cycling the stimulation on and off can keep the treatment working better for longer.
You likely qualify if…
You likely don't qualify if…
The research team will reprogram your implanted device to test two different stimulation patterns: one at a higher frequency and one at a lower frequency, both cycling on for 30 seconds and off for 90 seconds. You will track your pain levels using standard pain scales and questionnaires at follow-up visits over the study period. The team will monitor how well each pattern works for you and whether the cycling approach helps maintain your pain relief.
AI-generated summary from trial data · Jul 19, 2026 · Not medical advice
United States