Clinical trial Recruiting at 1 site Interventional Ages 18 to 65

Shock Wave Therapy vs High-Intensity Laser Therapy for Tailbone Pain

Official title: Comparison of the Effects of Extracorporeal Shock Wave Therapy and High-Intensity Laser Therapy on Pain, Function, and Clinical Outcomes in Patients With Coccydynia

Run by Ahmet Sümen, MD - Private Medical Practice · NCT07898514 · Data updated 2026-11-12

This study tests whether shock wave therapy or high-intensity laser therapy reduces pain while sitting for adults with chronic tailbone pain.

Quick facts

Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment70 (estimated)
SponsorAhmet Sümen, MD - Private Medical Practice
Academic / other
Locations1 site (Istanbul, Kartal)
StatusRecruiting
StartedOctober 16, 2026
Main results expectedSeptember 16, 2028
Study endsDecember 16, 2028
Registry record updatedOctober 29, 2026
Trial IDNCT07898514 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18–65 with coccygeal pain for at least 3 months who have not responded to prior standard treatments.

Probably not a fit

Individuals with recent coccygeal injury, non-coccygeal sources of pain, or prior ESWT/HILT for coccydynia may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a single-center, randomized, open-label study comparing two non-surgical treatments for coccydynia in adults aged 18–65. Participants are randomly assigned to receive either 6 sessions of extracorporeal shock wave therapy or 10 sessions of high-intensity laser therapy over a few weeks. Outcomes focus on changes in sitting-related tailbone pain at baseline and 3 months after the final treatment, with additional lookbacks at early pain relief, daily activities, and sitting ability. Assessments occur before treatment and at 1 and 3 months post-treatment, conducted by an experienced physician in Istanbul. The study aims to determine if one therapy provides greater reductions in coccygeal pain compared with the other.

Why it matters

Potential benefit: If successful, patients with chronic tailbone pain could have a clearer option for reducing sitting-related pain and improving function.

How similar studies have gone: Previous studies in other pain conditions suggest ESWT and HILT can reduce pain, but direct comparison for coccydynia is limited, making this approach relatively novel for this condition.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18 to 65 years.
* Diagnosis of coccydynia.
* Coccygeal pain persisting for at least 3 months.
* Persistent symptoms despite previous standard treatments.
* Voluntary agreement to participate and provision of written informed consent.
* Ability to attend regular follow-up visits.

Exclusion Criteria:

* Recent coccygeal fracture or severe coccygeal dislocation.
* An injection, interventional procedure, or similar treatment to the coccygeal region within the preceding 3 months.
* Previous extracorporeal shock wave therapy (ESWT) or high-intensity laser therapy (HILT) for coccydynia.
* Another significant condition that could explain the pain, such as lumbar disc herniation, nerve compression, or significant hip or lumbar disease.
* Suspicion that the pain originates from a non-coccygeal source, including gastrointestinal, urinary, gynecological, infectious, or tumor-related causes.
* History of spinal or pelvic surgery.
* Severe neurological disease, active infection, cancer, a severe bleeding disorder, or pregnancy.
* Another condition causing widespread pain, such as fibromyalgia.
* Inability to attend regular follow-up visits.

Where it's running

  • Ahmet Sümen, MD - Private Medical Practice
    Istanbul, Kartal, Turkey (Türkiye)
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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    This study is testing two different pain relief methods for people with chronic tailbone pain to see which one helps them feel better.

    Recruiting Başakşehir Çam & Sakura City Hospital · Istanbul, Başakşehir · NCT06858917

  • Ultrasound-guided dextrose prolotherapy for coccyx pain

    This will test whether ultrasound-guided 15% dextrose injections can reduce pain and improve function in adults (18–75) with chronic coccydynia not helped by conservative treatments.

    Recruiting Gaziosmanpasa Research and Education Hospital · Istanbul · NCT07564167

  • Dextrose prolotherapy for chronic tailbone (coccydynia) pain

    This study will try dextrose prolotherapy injections to see if they reduce chronic tailbone pain in adults who haven't improved after six months of conservative treatment.

    Recruiting Istanbul University · Istanbul · NCT07552298

  • Evaluating the effectiveness of capsaicin patches for chronic coccyx pain

    This study is testing if an 8% capsaicin patch can help people with chronic tailbone pain feel better compared to a lower concentration patch.

    Recruiting at 6 sites Phase 3 Nantes University Hospital · Brest and 5 other locations · NCT06023706

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.