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Sugar water shots could ease stubborn tailbone pain

NCT ID NCT07564167

Symptom relief Sponsor: Gaziosmanpasa Research and Education Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether injecting a sugar-water solution (dextrose prolotherapy) into the tailbone area can reduce pain and improve daily function in people with long-lasting coccydynia (tailbone pain). Thirty adults aged 18 to 75 with pain lasting at least 3 months will receive the injections under ultrasound guidance. Researchers will measure pain levels and functional status before treatment and one month after the final injection.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
dextrose prolotherapy (sugar water injections)
What this could lead to
If it works, this could offer a simple, safe injection option for people with stubborn tailbone pain who haven't gotten relief from other treatments.
What could go wrong
This is a very small, early study with only 30 people and no comparison group, so results may not be reliable or apply to everyone. The pain relief may be temporary or no better than placebo.

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

Jan 2026

Expected to finish

Jun 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Ages

18 to 75 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: * Age between 18 and 75 years * Pain persisting for ≥3 months and refractory to conservative treatment * Coccydynia of mechanical or idiopathic origin Exclusion Criteria: * Age \<18 years or \>75 years * Pregnancy * Allergy to the proliferant solution * Active infection * Use of anticoagulant medications * Presence of malignancy * Local abscess * Hemorrhagic diathesis * Certain types of septic arthritis * Parafunctional habits

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Conditions

The condition(s) this trial relates to.

coccygodynia

As listed by the trial registrant

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

Coccydynia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Gaziosmanpasa Research and Education Hospital

    RECRUITING

    Istanbul, Turkey (Türkiye)

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