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Freeze or burn? new study tests two nerve treatments for back pain

NCT ID NCT06804551

Symptom relief Sponsor: University of Kansas Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 14, 2026 · Updated 2 times

Summary

This study compares two treatments for chronic low back pain caused by facet joints: standard radiofrequency ablation (RFA), which burns pain nerves, and a newer freezing method called iovera°. Both aim to block pain signals temporarily. About 30 adults with long-term back pain will receive one of the treatments and report their pain levels over a year. The goal is to see if freezing is as effective as burning, with possibly fewer side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 30 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2025

Expected to finish

Jul 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Subjects must meet all the following inclusion criteria to be eligible for participation. * Subjects at least 18 years of age at Screening * Chronic low back pain (≥ 3 months) * Successful trial of two diagnostic medial branch blocks * Failure of at least three months of conservative non-operative therapy (e.g., physical therapy, chiropractic care, sleep hygiene, weight loss, spinal injections, NSAIDs, physician-directed exercise program or other appropriate pain medicine) * Able to provide informed consent, adhere to the study visit schedule, and complete all study assessments Exclusion Criteria: Subjects who meet any of the following exclusion criteria will not be eligible for participation in this study. * Active workers' compensation, personal injury, Social Security disability insurance (SSDI), or other litigation/compensation related to the spine * Infection in the back or open wounds in the back * Cancer * Fractures in the back * Pain shooting down the leg * Pain when walking up/downhill * Any back surgery or metal objects in the back * Any implants of any kind in the body * Currently pregnant, nursing, or planning to become pregnant during the study * Blood clots * History of RFA treatment in back * Drug abuse

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Chronic low back pain

Contacts and locations

Locations

  • University of Kansas Medical Center

    Kansas City, Kansas, 66160, United States

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