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Tailbone pain study tests two procedures for better relief

NCT ID NCT07247565

Symptom relief Sponsor: Ain Shams University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study compares two procedures to relieve chronic tailbone pain (coccydynia) that is not related to cancer. About 74 adults aged 20-70 who have not responded to standard medical treatment will be split into two groups. One group will receive conventional radiofrequency ablation (using heat) and the other will receive chemical neurolysis (using alcohol) to block pain signals. The goal is to see which method provides better and longer-lasting pain relief.

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 74 people

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

Started

Mar 2025

Expected to finish

Dec 2025

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

20 to 70 years

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: * non cancer coccydynia 1. Both genders 2. Age between 20-70 years. 3. ASA 1,2 \& 3 physical status 4. xray coccyx lateral position showing normal joints and bones with no fractures Exclusion Criteria: * Neurological disorders. (previous central and peripheral CNS affection). * coagulopathy INR \> 1.8 or platelets \< 50,000. * Infection at or near the injection site. * Presence of pacemaker or defibrillator. * known allergy to used medications. * patients with previous history of Radiotherapy, chemotherapy or metastasis * pregnant patients. * patients with rheumatological disorders (rheumatoid arthritis, diffuse idiopathic skeletal hyerostosis, psoriatic arthritis) * age \<20 or \>70 * Xray coccyx showing fractures or abnormalities

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Conditions

The condition(s) this trial relates to.

agnosia coccygodynia Pain

As listed by the trial registrant

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

Pain management

Contacts and locations

Locations

  • Ain Shams University

    Cairo, Egypt

More trials for these conditions

Other studies related to the condition(s) this trial covers.