EVALUATE Trial (Saluda Evoke)
Level 1 evidence comparing open-loop vs closed-loop SCS.
Study Overview
The EVALUATE study was a double-blind, randomized controlled trial (N=134) that established the superiority of ECAP-controlled closed-loop spinal cord stimulation for chronic back and leg pain.
Outcomes at 24 Months
| Metric | Closed-Loop | Open-Loop |
|---|---|---|
| Responders (≥50% pain relief) | 83% | 61% |
| Time in Therapeutic Window | 95.2% | 47.9% |
Related: Evidence Hub, SCS Guide