Piriformis SyndromeNCT05392933
Investigation of the Presence of Piriformis Syndrome Accompanying Lumbar Radiculopathy
A study testing Ultrasound guided piriformis muscle lidocaine injection in people with Piriformis Syndrome and Lumbar Radiculopathy, run by Istanbul University - Cerrahpasa at 1 site in Turkey (Türkiye).
Trial summary
Piriformis syndrome is a neuromuscular disorder that is characterized by piriformis muscle tenderness, hip, and leg pain, and may be accompanied by compression or irritation of the sciatic nerve under the piriformis muscle. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Piriformis Syndrome, Lumbar Radiculopathy
- What is being tested?
- Ultrasound guided piriformis muscle lidocaine injection
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 39 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 15 Jan 2023to 15 Jun 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Aged over 18 years
- Having clinical symptoms and signs of L4/L5/S1 radiculopathy which may be supported by imaging and/or electrodiagnostic evaluation
- Having tenderness at the piriformis muscle
Who cannot join
- Injection history at the lumbar, hip, gluteal region in the last 6 months
- Operation history at the lumbar and/ or hip region
- History of inflammatory rheumatic disease
- History of infectious disease
- History of bleeding disorder
- History of anticoagulation use
Show all 12Show fewer
- Uncontrolled diabetes mellitus or hypertension
- History of neurological disease
- Being in gestational or lactational period
- Noncompensated chronic heart/liver/renal deficiency, or vascular/tumoral disease
- Active psychiatric disease
- History of allergic reaction to the substance to be applied as local anesthetic
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Istanbul University-Cerrahpasa
Istanbul, 34098
About this study
Piriformis syndrome is a neuromuscular disorder that is characterized by piriformis muscle tenderness, hip, and leg pain, and may be accompanied by compression or irritation of the sciatic nerve under the piriformis muscle. There are many studies in the literature to establish diagnostic criteria for piriformis syndrome, and there is still no clear consensus on these criteria. However, cases with lumbar radiculopathy were accepted as exclusion criteria in all these studies. The aim of our study is to investigate whether lumbar radiculopathy and piriformis syndrome can coexist. For this reason, a diagnostic piriformis muscle injection under ultrasonography guidance is planned for patients with lumbar radiculopathy who also have a prediagnosis of piriformis syndrome clinically.
Read the detailed description
Lumbar radiculopathy is a condition in which lumbar spinal nerve roots are affected due to various pathologies. The diagnosis is made clinically by the symptoms and physical examination findings. Most of the time, the diagnosis is supported by imaging methods and electrodiagnostic tests.
Piriformis syndrome is a neuromuscular disorder that is characterized by piriformis muscle tenderness, hip, and leg pain, and may be accompanied by compression or irritation of the sciatic nerve under the piriformis muscle. Similarly, the diagnosis of piriformis syndrome is made clinically based on the patients' history and physical examination. In addition, piriformis muscle injections are an accepted method for the diagnosis of piriformis syndrome. However, the diagnosis of piriformis syndrome is still a controversial issue due to the absence of universally accepted diagnostic criteria, pathognomonic findings, or a gold standard diagnostic method. In this context, many authors have reported that piriformis syndrome is mostly a diagnosis of exclusion. For this reason, the diagnosis of piriformis syndrome is missed in patients with lumbar radiculopathy and these patients may apply to multiple physicians due to their ongoing pain. This can lead to loss of time, financial losses, sensitization and chronic pain in patients and even unnecessary lumbar surgery. Our aim is to investigate whether these two clinical conditions coexist by performing a diagnostic piriformis muscle injection test under ultrasonographic guidance to patients with a diagnosis of lumbar radiculopathy and also with symptoms and signs of piriformis syndrome.
The diagnostic injection test into the piriformis muscle has also been reported to have therapeutic effects. Therefore, the second goal of our study is to investigate the therapeutic effect of piriformis muscle injection in patients diagnosed with lumbar radiculopathy and also piriformis syndrome.
- Conditions
- Piriformis Syndrome, Lumbar Radiculopathy
- Being tested
- Ultrasound guided piriformis muscle lidocaine injection
- Keywords
- Piriformis Syndrome, Lumbar Radiculopathy, Ultrasonography, Diagnostic Injection
- Medical subject headings
- Piriformis Muscle Syndrome, Radiculopathy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Ultrasound guided piriformis muscle lidocaine injectionDiagnostic test
Also called Ultrasound guided piriformis muscle (piriformis syndrome) diagnostic lidocaine injection
Ultrasound guided piriformis muscle (piriformis syndrome) 5 ml %2 lidocaine injection
| Study group | Role | What they receive |
|---|---|---|
| Piriformis syndrome with lumbar radiculopathy (PSWLR) | Experimental | All patients (n=39) will be evaluated with detailed physical examination and special clinical tests for both lumbar radiculopathy and piriformis syndrome. If patients have lumbar magnetic resonance imaging or electromyography results, they will be recorded to confirm the diagnosis of lumbar radiculopathy. The patients who have the final diagnosis of lumbar radiculopathy and prediagnosis of piriformis syndrome will be evaluated for the pain scores (pain at resting, sitting, standing, lying, at night and during activity) using numeric rating scale. Then, an ultrasound guided piriformis muscle injection will be performed. The patients will be kept under observation for 30 minutes afterwards and the percentage of their pain relief will be recorded. The patients whose pain resolves at least 50% from the baseline after the injection will be diagnosed as piriformis syndrome and will be reevaluated one week and one month after the injection and the changes in the pain scores will be recorded. Receives: Diagnostic Test: Ultrasound guided piriformis muscle lidocaine injection |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change from baseline pain at 30 minutes after piriformis muscle injection
After the piriformis muscle injection, the percentage of relief in patient's symptoms will be questioned. It has been reported that 50% or more reduction in the patient's complaints after injecting the local anesthetic agent into the piriformis muscle, with or without steroids, is diagnostic for piriformis syndrome. Therefore, patients with at least 50% reduction in post-injection complaints will be diagnosed with piriformis syndrome.
Measured: Baseline, 30 minutes after piriformis muscle injection
Secondary outcomes (1)
Change in patient's pain level via Numeric Rating Scale at 1 week and 1 month after injection
Before the injection, the participants' pain at resting, sitting, standing, lying, at night, during activity will be assessed by one of the most commonly used pain scale 'numerical rating scale'. It is numeric version of 'visual analog scale' in which the patient selects a whole number (0-10 integers) that best reflects the intensity of his/her pain. The 11-point numeric scale ranges from '0' representing "no pain" to '10' representing "pain as bad as you can imagine". One week after the injection, the participant's pain while resting, walking, sitting, lying down and at night will be evaluated with a numerical rating scale and the change in pain scores will be evaluated. Similarly, the change in pain scores during the same activities one month after the injection will also be evaluated. In this way, the amount of relief that may be provided via the piriformis muscle injection in patients having lumbar radiculopathy and piriformis syndrome in short and medium terms will be evaluated.
Measured: Baseline, one week after piriformis muscle injection, one month after piriformis muscle injection
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 May 2022
- Study start15 Jan 2023
- Primary completion15 Jan 2024
- Study completion15 Jun 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for Piriformis SyndromeStudies of the same condition, open and under way.
- More trials run by Istanbul University - CerrahpasaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 39 participants (actual)
Sponsor and investigators
- Lead sponsor
- Istanbul University - Cerrahpasa
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Yasar Burak Topcu, Istanbul University - Cerrahpasa
- Investigators
- Yasar Burak Topcu, Principal investigator, Istanbul University - CerrahpasaTugce Ozekli Misirlioglu, Study director, Istanbul University - Cerrahpasa
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05392933
- Sponsor's protocol ID
- IstanbulUC-YasarBurakTOPCU-001
- Status last verified
- Jul 2024
- First submitted
- 21 Mar 2022
- Last updated
- 8 Jul 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Tarulli AW, Raynor EM. Lumbosacral radiculopathy. Neurol Clin. 2007 May;25(2):387-405. doi: 10.1016/j.ncl.2007.01.008.
PubMed 17445735Bogduk N. On the definitions and physiology of back pain, referred pain, and radicular pain. Pain. 2009 Dec 15;147(1-3):17-9. doi: 10.1016/j.pain.2009.08.020. Epub 2009 Sep 16. No abstract available.
PubMed 19762151Probst D, Stout A, Hunt D. Piriformis Syndrome: A Narrative Review of the Anatomy, Diagnosis, and Treatment. PM R. 2019 Aug;11 Suppl 1:S54-S63. doi: 10.1002/pmrj.12189. Epub 2019 Jul 22.
PubMed 31102324Michel F, Decavel P, Toussirot E, Tatu L, Aleton E, Monnier G, Garbuio P, Parratte B. Piriformis muscle syndrome: diagnostic criteria and treatment of a monocentric series of 250 patients. Ann Phys Rehabil Med. 2013 Jul;56(5):371-83. doi: 10.1016/j.rehab.2013.04.003. Epub 2013 Apr 25.
PubMed 23684470Siddiq MA, Hossain MS, Uddin MM, Jahan I, Khasru MR, Haider NM, Rasker JJ. Piriformis syndrome: a case series of 31 Bangladeshi people with literature review. Eur J Orthop Surg Traumatol. 2017 Feb;27(2):193-203. doi: 10.1007/s00590-016-1853-0. Epub 2016 Sep 19.
PubMed 27644428Hopayian K, Song F, Riera R, Sambandan S. The clinical features of the piriformis syndrome: a systematic review. Eur Spine J. 2010 Dec;19(12):2095-109. doi: 10.1007/s00586-010-1504-9. Epub 2010 Jul 3.
PubMed 20596735Fishman LM, Dombi GW, Michaelsen C, Ringel S, Rozbruch J, Rosner B, Weber C. Piriformis syndrome: diagnosis, treatment, and outcome--a 10-year study. Arch Phys Med Rehabil. 2002 Mar;83(3):295-301. doi: 10.1053/apmr.2002.30622.
PubMed 11887107Jankovic D, Peng P, van Zundert A. Brief review: piriformis syndrome: etiology, diagnosis, and management. Can J Anaesth. 2013 Oct;60(10):1003-12. doi: 10.1007/s12630-013-0009-5. Epub 2013 Jul 27.
PubMed 23893704Miller TA, White KP, Ross DC. The diagnosis and management of Piriformis Syndrome: myths and facts. Can J Neurol Sci. 2012 Sep;39(5):577-83. doi: 10.1017/s0317167100015298.
PubMed 22931697Papadopoulos EC, Khan SN. Piriformis syndrome and low back pain: a new classification and review of the literature. Orthop Clin North Am. 2004 Jan;35(1):65-71. doi: 10.1016/S0030-5898(03)00105-6.
PubMed 15062719Misirlioglu TO, Akgun K, Palamar D, Erden MG, Erbilir T. Piriformis syndrome: comparison of the effectiveness of local anesthetic and corticosteroid injections: a double-blinded, randomized controlled study. Pain Physician. 2015 Mar-Apr;18(2):163-71.
PubMed 25794202Terlemez R, Ercalik T. Effect of piriformis injection on neuropathic pain. Agri. 2019 Nov;31(4):178-182. doi: 10.14744/agri.2019.34735.
PubMed 31741344Lauder TD. Physical examination signs, clinical symptoms, and their relationship to electrodiagnostic findings and the presence of radiculopathy. Phys Med Rehabil Clin N Am. 2002 Aug;13(3):451-67. doi: 10.1016/s1047-9651(02)00006-2.
PubMed 12380545
Study at a glance
From the registry record, last updated by the sponsor on 8 Jul 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Investigation of the Presence of Piriformis Syndrome Accompanying Lumbar Radiculopathy
- ClinicalTrials.gov ID
- NCT05392933
- Acronym / sponsor ID
- IstanbulUC-YasarBurakTOPCU-001
- Conditions
- Piriformis Syndrome, Lumbar Radiculopathy
- Keywords
- Piriformis Syndrome, Lumbar Radiculopathy, Ultrasonography, Diagnostic Injection
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 39 participants (actual)
- Lead sponsor
- Istanbul University - CerrahpasaUniversity, hospital or other
- Study start
- 15 Jan 2023 (actual)
- Primary completion
- 15 Jan 2024 (actual)
- Study completion
- 15 Jun 2024 (actual)
- First posted
- 26 May 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Piriformis syndrome is a neuromuscular disorder that is characterized by piriformis muscle tenderness, hip, and leg pain, and may be accompanied by compression or irritation of the sciatic nerve under the piriformis muscle. There are many studies in the literature to establish diagnostic criteria for piriformis syndrome, and there is still no clear consensus on these criteria. However, cases with lumbar radiculopathy were accepted as exclusion criteria in all these studies. The aim of our study is to investigate whether lumbar radiculopathy and piriformis syndrome can coexist. For this reason, a diagnostic piriformis muscle injection under ultrasonography guidance is planned for patients with lumbar radiculopathy who also have a prediagnosis of piriformis syndrome clinically.
Detailed description
Lumbar radiculopathy is a condition in which lumbar spinal nerve roots are affected due to various pathologies. The diagnosis is made clinically by the symptoms and physical examination findings. Most of the time, the diagnosis is supported by imaging methods and electrodiagnostic tests.
Piriformis syndrome is a neuromuscular disorder that is characterized by piriformis muscle tenderness, hip, and leg pain, and may be accompanied by compression or irritation of the sciatic nerve under the piriformis muscle. Similarly, the diagnosis of piriformis syndrome is made clinically based on the patients' history and physical examination. In addition, piriformis muscle injections are an accepted method for the diagnosis of piriformis syndrome. However, the diagnosis of piriformis syndrome is still a controversial issue due to the absence of universally accepted diagnostic criteria, pathognomonic findings, or a gold standard diagnostic method. In this context, many authors have reported that piriformis syndrome is mostly a diagnosis of exclusion. For this reason, the diagnosis of piriformis syndrome is missed in patients with lumbar radiculopathy and these patients may apply to multiple physicians due to their ongoing pain. This can lead to loss of time, financial losses, sensitization and chronic pain in patients and even unnecessary lumbar surgery. Our aim is to investigate whether these two clinical conditions coexist by performing a diagnostic piriformis muscle injection test under ultrasonographic guidance to patients with a diagnosis of lumbar radiculopathy and also with symptoms and signs of piriformis syndrome.
The diagnostic injection test into the piriformis muscle has also been reported to have therapeutic effects. Therefore, the second goal of our study is to investigate the therapeutic effect of piriformis muscle injection in patients diagnosed with lumbar radiculopathy and also piriformis syndrome.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Piriformis syndrome with lumbar radiculopathy (PSWLR) | Experimental | Diagnostic Test: Ultrasound guided piriformis muscle lidocaine injectionAll patients (n=39) will be evaluated with detailed physical examination and special clinical tests for both lumbar radiculopathy and piriformis syndrome. If patients have lumbar magnetic resonance imaging or electromyography results, they will be recorded to confirm the diagnosis of lumbar radiculopathy. The patients who have the final diagnosis of lumbar radiculopathy and prediagnosis of piriformis syndrome will be evaluated for the pain scores (pain at resting, sitting, standing, lying, at night and during activity) using numeric rating scale. Then, an ultrasound guided piriformis muscle injection will be performed. The patients will be kept under observation for 30 minutes afterwards and the percentage of their pain relief will be recorded. The patients whose pain resolves at least 50% from the baseline after the injection will be diagnosed as piriformis syndrome and will be reevaluated one week and one month after the injection and the changes in the pain scores will be recorded. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Aged over 18 years
- Having clinical symptoms and signs of L4/L5/S1 radiculopathy which may be supported by imaging and/or electrodiagnostic evaluation
- Having tenderness at the piriformis muscle
Key exclusion criteria (12 listed)
- Injection history at the lumbar, hip, gluteal region in the last 6 months
- Operation history at the lumbar and/ or hip region
- History of inflammatory rheumatic disease
- History of infectious disease
- History of bleeding disorder
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Ultrasound guided piriformis muscle lidocaine injectionAlso: Ultrasound guided piriformis muscle (piriformis syndrome) diagnostic lidocaine injectionUltrasound guided piriformis muscle (piriformis syndrome) 5 ml %2 lidocaine injection | Diagnostic test | Piriformis syndrome with lumbar radiculopathy (PSWLR) |
Primary outcome
Change from baseline pain at 30 minutes after piriformis muscle injection
Time frame: Baseline, 30 minutes after piriformis muscle injection
After the piriformis muscle injection, the percentage of relief in patient's symptoms will be questioned. It has been reported that 50% or more reduction in the patient's complaints after injecting the local anesthetic agent into the piriformis muscle, with or without steroids, is diagnostic for piriformis syndrome. Therefore, patients with at least 50% reduction in post-injection complaints will be diagnosed with piriformis syndrome.
1 secondary outcome
Change in patient's pain level via Numeric Rating Scale at 1 week and 1 month after injection
Time frame: Baseline, one week after piriformis muscle injection, one month after piriformis muscle injection
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jul 2024.
- Background: PubMed 17445735Tarulli AW, Raynor EM. Lumbosacral radiculopathy. Neurol Clin. 2007 May;25(2):387-405. doi: 10.1016/j.ncl.2007.01.008.
- Background: PubMed 19762151Bogduk N. On the definitions and physiology of back pain, referred pain, and radicular pain. Pain. 2009 Dec 15;147(1-3):17-9. doi: 10.1016/j.pain.2009.08.020. Epub 2009 Sep 16. No abstract available.
- Background: PubMed 31102324Probst D, Stout A, Hunt D. Piriformis Syndrome: A Narrative Review of the Anatomy, Diagnosis, and Treatment. PM R. 2019 Aug;11 Suppl 1:S54-S63. doi: 10.1002/pmrj.12189. Epub 2019 Jul 22.
- Background: PubMed 23684470Michel F, Decavel P, Toussirot E, Tatu L, Aleton E, Monnier G, Garbuio P, Parratte B. Piriformis muscle syndrome: diagnostic criteria and treatment of a monocentric series of 250 patients. Ann Phys Rehabil Med. 2013 Jul;56(5):371-83. doi: 10.1016/j.rehab.2013.04.003. Epub 2013 Apr 25.
- Background: PubMed 27644428Siddiq MA, Hossain MS, Uddin MM, Jahan I, Khasru MR, Haider NM, Rasker JJ. Piriformis syndrome: a case series of 31 Bangladeshi people with literature review. Eur J Orthop Surg Traumatol. 2017 Feb;27(2):193-203. doi: 10.1007/s00590-016-1853-0. Epub 2016 Sep 19.
- Background: PubMed 20596735Hopayian K, Song F, Riera R, Sambandan S. The clinical features of the piriformis syndrome: a systematic review. Eur Spine J. 2010 Dec;19(12):2095-109. doi: 10.1007/s00586-010-1504-9. Epub 2010 Jul 3.
- Background: PubMed 11887107Fishman LM, Dombi GW, Michaelsen C, Ringel S, Rozbruch J, Rosner B, Weber C. Piriformis syndrome: diagnosis, treatment, and outcome--a 10-year study. Arch Phys Med Rehabil. 2002 Mar;83(3):295-301. doi: 10.1053/apmr.2002.30622.
- Background: PubMed 23893704Jankovic D, Peng P, van Zundert A. Brief review: piriformis syndrome: etiology, diagnosis, and management. Can J Anaesth. 2013 Oct;60(10):1003-12. doi: 10.1007/s12630-013-0009-5. Epub 2013 Jul 27.
- Background: PubMed 22931697Miller TA, White KP, Ross DC. The diagnosis and management of Piriformis Syndrome: myths and facts. Can J Neurol Sci. 2012 Sep;39(5):577-83. doi: 10.1017/s0317167100015298.
- Background: PubMed 15062719Papadopoulos EC, Khan SN. Piriformis syndrome and low back pain: a new classification and review of the literature. Orthop Clin North Am. 2004 Jan;35(1):65-71. doi: 10.1016/S0030-5898(03)00105-6.
- Background: PubMed 25794202Misirlioglu TO, Akgun K, Palamar D, Erden MG, Erbilir T. Piriformis syndrome: comparison of the effectiveness of local anesthetic and corticosteroid injections: a double-blinded, randomized controlled study. Pain Physician. 2015 Mar-Apr;18(2):163-71.
- Background: PubMed 31741344Terlemez R, Ercalik T. Effect of piriformis injection on neuropathic pain. Agri. 2019 Nov;31(4):178-182. doi: 10.14744/agri.2019.34735.
- Individual participant dataSharing planned: No
Related trials for Piriformis Syndrome
Not yet recruitingPhase 2
Efficacy of Botulinum Toxin Versus Placebo on Pain and Health Related Quality of Life of Patients With Piriformis Muscle Syndrome
Piriformis Muscle Syndrome
Recruiting
Interfascial Hydrodissection Added to Ultrasound-Guided Piriformis Injection for Piriformis Syndrome
Piriformis Syndrome
Recruiting
Comparative Effects of Post-Isometric Relaxation and Reciprocal Inhibition Techniques inPiriformis Syndrome
Piriformis Syndrome
Enrolling by invitation
Neural Gliders With and Without ESWT for Deep Gluteal Syndrome
Deep Gluteal Syndrome
Enrolling by invitation
Comparative Effects of the Bowen Technique With and Without Extracorporeal Shock Wave Therapy in Patients With Deep Gluteal Syndrome
Deep Gluteal Syndrome
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Yasar Burak Topcu principal investigator
Istanbul University - Cerrahpasa
Tugce Ozekli Misirlioglu study director
Istanbul University - Cerrahpasa
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Ultrasound guided piriformis muscle lidocaine injection in people with Piriformis Syndrome and Lumbar Radiculopathy, run by Istanbul University - Cerrahpasa at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 8 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change from baseline pain at 30 minutes after piriformis muscle injection (time frame: Baseline, 30 minutes after piriformis muscle injection). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05392933, which also lists 13 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jul 2024.