# Patient Observational Pain and Activity Survey (POPAS) Study Using RS-4i Sequential Stimulator With Intersperse Technology in Axial Spine and Peripheral Joint Pain

> **NCT05478265** · — · COMPLETED · sponsor: **University of California, Irvine** · enrollment: 69 (actual)

## Conditions studied

- Osteoarthritis

## Interventions

- **DEVICE:** RS-4i Plus

## Key facts

- **NCT ID:** NCT05478265
- **Lead sponsor:** University of California, Irvine
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2023-01-09
- **Primary completion:** 2024-06-30
- **Final completion:** 2024-06-30
- **Target enrollment:** 69 (ACTUAL)
- **Last updated:** 2025-06-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05478265

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05478265, "Patient Observational Pain and Activity Survey (POPAS) Study Using RS-4i Sequential Stimulator With Intersperse Technology in Axial Spine and Peripheral Joint Pain". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT05478265. Licensed CC0.

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