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

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

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05478265
Enrollment
69
Registered
2022-07-28
Start date
2023-01-09
Completion date
2024-06-30
Last updated
2025-06-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis

Brief summary

Spine pain and joint pain are among the most common worldwide ailments and directly contributes to disability as well as increased duration of care. Spine and joint pain affect work sick leave, production and increased financial costs to healthcare. Non-invasive treatments for spine and joint pain can vary widely from lifestyle changes, physical therapy, oral medication, and select medical devices, that can improve pain level and help improve the quality of life of individuals. Thus, the general population suffers from an ailment that has multiple conservative treatment options with variable outcomes. Transcutaneous Electrical Neuromuscular Stimulation (TENS) has been show to decrease pain and restore function. Interferential therapy (INF) is a specific signal type that is effective for reducing musculoskeletal pain. Neuromuscular Electrical Stimulation (NMES) uses a specific signal type to cause muscles to contract and therefore provide functional improvement. The RS-4i Plus is an FDA-regulated prescription TENS medical device that outputs an INF signal and a NMES signal, and a unique Intersperse signal, which combines NMES and INF into a single treatment. Therefore, the goal of this study is to determine if use of the prescribed RS-4i Plus in patients presenting with pain, axial or peripheral joint, can be efficacious in decreasing the patient's pain and improving their activity measured at one month, three months, and six months of use.

Interventions

DEVICERS-4i Plus

RS-4i Plus in an FDA-regulated prescription TENS medical device that outputs and INF signal and a NMES signal and Intersperse signal, which combines INF and NMES into a single treatment.

Sponsors

University of California, Irvine
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 89 Years
Healthy volunteers
Yes

Inclusion criteria

1. chronic and persistent MSK lumbar back pain for greater than 12 weeks as documented in patient records 2. Age 18 to 89 3. Willingness to comply with study protocol 4. Signed Patient Consent on file 5. Verified patient usage collected from RS-4i Plus via patient data adapter

Exclusion criteria

1. Pregnancy 2. Any contraindications, as indicated in the RS-4i Plus prescribing information 3. Substantial allergy to adhesives 4. Skin infection or irritation of skin where electrodes are to be placed 5. Pacemaker/ICD 6. Abnormal skin sensation 7. Serious psychological disorder 8. End-stage cardiac, peripheral arterial or pulmonary disease 9. h/o recent vertebral fracture 10. Severe degenerative or traumatic neuromuscular disease 11. Non-English speaking 12. Uncontrolled diabetes meelitus (Hb A1c\> 8.5%) 13. ESRD or ESHD 14. Active cancer

Design outcomes

Primary

MeasureTime frameDescription
Level of Pain / Function using NRS1 monthOutcome with be rated on a scale of 0-10, in which 10 is the most severe pain / worst function and 0 is the least pain / best function. The time frame will include assessment at 1 month interval to determine if the intervention is showing a change / long term improvement in the pain / function

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026