An interventional study of suprascapular nerve block and 4 mins Pulsed radiofreuency application to suprascapular nerve and suprascapular nerve block and 9 mins Pulsed radiofreuency application to suprascapular nerve in Suprascapular Nerve, Shoulder Impingement Syndrome and Pulsed Radiofrequency, sponsored by Ankara University. Not yet recruiting at 1 site in Turkey. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2024-12-27.
Sponsored by Ankara University · Not applicable, Interventional, and Treatment
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Among 69 studies in Shoulder Impingement Syndrome with a site in Turkey — 12 open to participants now, 14 under way, none of them phase 3. Shoulder Impingement Syndrome · Turkey.
Among the 69 studies in Shoulder Impingement Syndrome with a site in Turkey, this one is the 51st largest by planned enrollment of the 55 interventional ones that give a count, is one of 9 that started in 2025, is one of 54 with no phase, reaches primary completion later than 5 of the 13 other live ones, and was the 51st registered.
320 studies on the registry are indexed under Shoulder Impingement Syndrome; 62 are open to participants now.
Browse Shoulder Impingement Syndrome studies →12 of the 69 studies in Shoulder Impingement Syndrome with a site in Turkey are open now. Recruiting first, the newest first:
Kübra Sarıoğlu · Sites in Turkey
Ages 20–40 · Healthy volunteers
Izmir Katip Celebi University · Sites in Turkey
Ages 30–65 · Healthy volunteers
Fenerbahce University · Sites in Turkey
Ages 25–65
Gazi University · Sites in Turkey
Ages 18–55 · Healthy volunteers
Hacettepe University · Sites in Turkey
Ages 18–50
A study can be open while its sites in Turkey have not opened yet or have stopped. Only those recruiting at a site in Turkey →
Of the 32 Shoulder Impingement Syndrome studies recruiting now, 3 (9%) set no upper age limit and 25 (78%) stop at 75 or younger; 1 takes children under 18; 6 take healthy volunteers.
This study: 18 Years to 80 Years · all sexes · no healthy volunteers.
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69 studies; the count open now beside each. This study's row is marked.
First in 2013; this study’s year is marked. 9 started in 2025.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 30 is below the median of 54 across 271 interventional studies indexed under Shoulder Impingement Syndrome.
Median enrollment 48 across the 55 interventional studies, 77 across the 14 observational. Of the 52 that completed or were terminated, 0 (0%) have results posted.
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None of the 69 has an industry lead sponsor. The 10 most frequent:
Ankara University is the lead sponsor of 320 studies on the registry; 64 are open to participants now.
Ankara University has 1 study filed under Shoulder Impingement Syndrome — fewer than ten, so there is no comparison to draw.
3 of the studies in Shoulder Impingement Syndrome with a site in Turkey that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT07290660Fenerbahce UniversityGraded Motor Imagery and Task-Oriented Exercise in Shoulder Impingement | 2026-12-30 |
| NCT07053566Hacettepe UniversityLatissimus Dorsi Strengthening Exercises in Rotator Cuff Tendinopathy | 2027-05-22 |
| NCT07891481Pamukkale UniversityEffects of Different Kinesio Taping Methods in Subacromial Impingement Syndrome | 2027-10-26 |
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Among the 69 studies in Shoulder Impingement Syndrome with a site in Turkey, from their registry updates:
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Chronic shoulder pain due to impingement syndrome and supraspinatus tendinosis is a debilitating condition. Suprascapular nerve innervates most part of shoulder joint. Supraspinatus nerve block can be used as a part of pain therapy. However, its efficacy is short-lasting. To prolong analgesia, short bursts of electrical stimulation to suprascapular nerve may be applied. To the date there is no consensus about duration of these type of stimulation. Investigators' aim is to investigate efficacy of two different duration of stimulation (pulsed radiofrequency) on chronic shoulder pain.
Pulsed radiofrequency (pRF) treatment of suprascapular nerve can be used successfully to alleviate pain due to shoulder impingement syndrome and supraspinatus tendinosis. Radiofrequency waves produced by radiofrequency (RF) generator through pRF modality are applied to suprascapular nerve and create magnetic field. This field leads to pain modulation by changing neuronal activity and resulting in long term depression of pain transmitting nerve fibers. Temperature around nerve never exceeds 42 degree and by this way the nerve can be protected from coagulation necrosis and demiyelinisation. pRF can be used in the treatment of mixed type nerves such as suprascapular nerve. There are preclinical and clinical studies which report that with longer pRF duration, more favorable analgesia. Suprascapular pRF is performed with 22G, 10 cm, 5 mm active lead RF needle via USG guided posterior approach as institution procotol. Howeveri clinicians can choose any duration of pRF. Instution's pain medicine practitioners HAU and GEO choose 4 and 9 minutes of pRF duration, respectively. Investigators' aim is to investigate the efficacy of two different pRF duration, 4 and 9 minutes, on Shoulder Pain and Disability Index (SPADI) and Numeric Rating Scale-11(NRS-11) at 3 month follow-up.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
HbA1c
A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Suprascapular nerve pulsed RF is applied for 4 minutes.
Procedure: suprascapular nerve block and 4 mins Pulsed radiofreuency application to suprascapular nerve
Suprascapular nerve pulsed RF is applied for 8 minutes.
Procedure: suprascapular nerve block and 9 mins Pulsed radiofreuency application to suprascapular nerve
suprascapular nerve pulsed rf
suprascapular nerve block and 4 mins Pulsed radiofreuency application to suprascapular nerve
Postprocedure 3th month pain severity
Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at baseline, 1 weeks, 1 months and 3 months after interventions. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain.
Time frame: From procedure to 3 months after prodecure
Postprocedure pain severity at first week
Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at 1 week after interventions. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain.
Time frame: From procedure to 1 week after procedure
Postprocedure first month pain severity
Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at 1 month after interventions. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain.
Time frame: From procedure to 1 month after procedure
Postprocedure SPADI scores at first week
Functionality will be assessed with Shoulder Pain and Disability Index (SPADI) at 1 week. SPADI measures pain and disability related shoulder function. SPADI has 0 minimum and 100 maximum value. Lower scores represent better outcomes.
Time frame: From procedure to 1 week after procedure
Postprocedure first month SPADI scores
Functionality will be assessed with Shoulder Pain and Disability Index (SPADI) at 1 month. SPADI measures pain and disability related shoulder function. SPADI has 0 minimum and 100 maximum value. Lower scores represent better outcomes.
Time frame: From procedure to 1 month after procedure
Postprocedure 3th month SPADI scores
Functionality will be assessed with Shoulder Pain and Disability Index (SPADI) at 3th month. SPADI measures pain and disability related shoulder function. SPADI has 0 minimum and 100 maximum value. Lower scores represent better outcomes.
Time frame: From procedure to 3 month after procedure
Plan to share: Yes — All data can be shared except personal data.
Supporting information: Study protocol, Statistical analysis plan, Clinical study report, Analytic code
Time frame: 5 years after January 2026
Access criteria: Upon reasonable request
Start is estimated for Jan 2025; primary completion for Jul 2025, 6 months later.
Of 170 non-industry interventional studies with no phase under Shoulder Impingement Syndrome, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 24. This study's planned 6 months is below that.
Counting every sponsor, half of 172 studies reached it within 12 months; a quarter within 5 and three quarters within 24.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.
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Shoulder Impingement Syndrome →