Evaluating the effects of TENS and IFC on chronic lower back pain

Randomized Blinded Evaluation of the Effects of Transcutaneous Electrical Nerve Stimulation and Interferential Current Compared to a Sham Device and Standard of Care in Patients With Non-Specific Chronic Lower Back Pain

Not applicable Interventional Zynex Medical, Inc. · NCT05972889

This study is testing whether two types of electrical stimulation treatments can help people with chronic lower back pain feel better compared to a fake treatment and regular care.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment336 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorZynex Medical, Inc. Industry-sponsored
Locations9 sites (Greenwood Village, Colorado and 8 other locations)
Trial IDNCT05972889 on ClinicalTrials.gov

What this trial studies

This clinical trial is a prospective, sham-controlled, randomized, single-blinded, multi-center evaluation comparing the effectiveness of two modes of the NexWave device—transcutaneous electrical nerve stimulation (TENS) and interferential current (IFC)—against a non-functioning sham device and standard of care. The study aims to assess improvements in pain intensity for patients suffering from non-specific chronic lower back pain lasting at least three months. Participants will be monitored for pain relief and overall improvement in their condition throughout the trial.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18-70 with non-specific chronic lower back pain lasting three months or more and a significant pain rating.

Not a fit: Patients with specific spinal conditions or prior use of TENS/IFC devices may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a non-invasive treatment option for patients suffering from chronic lower back pain.

How similar studies have performed: Previous studies have shown promising results with TENS and IFC for pain management, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Ages 18-70, or older if specified by law
* Non-specific chronic lower back pain defined as:

  1. Having lasted ≥3 months in duration
  2. Current Visual Analogue Scale (VAS) pain rating ≥50 out of 100 (or an equivalent of 5 out of 10 on a 10-point scale)
  3. No radiating pain below the knee
  4. ≥75% back or buttock pain rather than lower extremity pain
* Subjects who are willing and capable of providing informed consent
* Subjects who are willing and capable of participating in all testing and questionnaire requirements associated with the clinical study

Exclusion Criteria:

* Any prior home use of the NexWave or any TENS/IFC device
* Any history of lumbar spine surgery or spinal fractures
* Subjects with a history of rheumatic disease
* Subjects with spine disorders, deformities, or severe spinal conditions such as scoliosis and kyphosis, Pott's disease, disc protrusion, or others that can be attributed to specific causes of back pain
* Subjects currently prescribed and adherent to opioid therapy
* Current implanted cardiac pacemakers, defibrillators, cardiac pumps, spinal stimulators, or other implanted electronic devices
* Active psychiatric or uncontrolled mood disorders including subjects on antipsychotic medication, diagnosis of bipolar disorder or schizophrenia, or uncontrolled anxiety or clinical depression
* Subjects with a known history of allergic reactions to medical adhesives or any condition that could affect placement of the electrodes
* Women of childbearing potential who are pregnant or who are planning to become pregnant during the anticipated study period
* Subjects with health conditions that in the Investigator's medical opinion would prevent participation in the study, interfere with assessment or therapy, significantly raise the risk of study participation, or modify outcome data or its interpretation
* Subjects who are currently enrolled in another investigational study that would directly interfere with the current study

Where this trial is running

Greenwood Village, Colorado and 8 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Non-Specific Chronic Lower Back PainTENSIFC
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.