Pain phenotype and response to corticosteroid injection in SAPS
Official title: Association Between Pain Phenotype and Change in Pain Following Routine Corticosteroid Injection in Patients With Subacromial Pain Syndrome - A Prospective Cohort Study.
Run by Vejle Hospital · NCT07792421 · Data updated 2026-11-12
This study tests whether people with subacromial pain syndrome who have a nociplastic pain pattern respond differently to a corticosteroid injection than those without that pattern.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 70 Years |
| Sex | All |
| Enrollment | 134 (estimated) |
| Sponsor | Vejle Hospital Academic / other |
| Locations | 1 site (Vejle) |
| Status | Recruiting |
| Started | October 19, 2026 |
| Main results expected | September 30, 2028 |
| Study ends | November 30, 2028 |
| Registry record updated | October 23, 2026 |
| Trial ID | NCT07792421 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18-70 with diagnosed SAPS, experiencing shoulder pain for at least 3 months and meeting specific shoulder test criteria, who are receiving a corticosteroid injection as part of routine care.
✕Probably not a fit
Patients whose pain phenotype is nociplastic may not experience greater short-term relief after corticosteroid injection compared with non-nociplastic patients.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This prospective cohort study examines if pain mechanism phenotype, specifically nociplastic pain, influences changes in shoulder pain after a corticosteroid injection given as part of routine care for SAPS. Participants are adults with SAPS who receive an injection and are classified by pain phenotype using IASP criteria as part of the larger NAP SAPS study. The analysis compares pain change from baseline to 4 weeks post-injection between phenotypes, aiming to understand how mechanisms of pain relate to short-term treatment response. The study is conducted at Vejle Hospital and uses standard clinical evaluations without experimental interventions beyond routine care. Findings may inform personalized approaches to managing SAPS based on pain mechanisms.
Why it matters
Potential benefit: If successful, the results could help tailor treatments for SAPS based on pain phenotype to improve short-term pain relief.
How similar studies have gone: Prior work in musculoskeletal pain shows variability in corticosteroid response, but studies focusing on nociplastic phenotypes in SAPS are emerging and results have been mixed.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Diagnosed with SAPS (dm751, dm753, dm754, dm755 2. Shoulder pain ≥ 3 months 3. ≥ 3 out of 5 specific shoulder test 4. Age 18-70 years 5. Increased pain during active arm elevation 6. Pain during active elevation ≥ 3 (VAS) 7. Receving a corticosteroid injection based on routine clinical proctice Exclusion Criteria: 1. Severe visual impairment 2. Epilepsy 3. Severe cognitive or physical impairment 4. Language barrier (Danish) 5. Receving a corticosteroid injection at a site other than the subacromial bursa (e.g. acromioclavicular joint or intra-articular injection)
Where it's running
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Vejle Hospital
Vejle, Denmark Recruiting
Study contacts
- Principal investigator: Thomas Sørensen, PT, Cand.san — University of Southern Denmark
- Study coordinator: Thomas Sørensen, PT, Cand.san
- Email: thomas.soerensen1@rsyd.dk
- Phone: +45 79409871
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Nociplastic Pain in SAPS: A Look at Pain Types in Shoulder Pain
This study tests how common nociplastic pain is among people with subacromial pain syndrome who have shoulder pain for at least 3 months.
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Functional electrical stimulation plus shoulder exercises for older adults with rotator cuff pain
In older adults with rotator cuff–related shoulder pain, this study tests whether adding functional electrical stimulation to a shoulder exercise program improves muscle coordination and reduces impingement compared with exercises alone.
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Night Pain Module for Rotator Cuff-Related Shoulder Pain
Researchers are testing a short set of questions to measure night pain in people with rotator cuff–related shoulder pain to see if it reliably describes how sleep is affected.
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Attention-shift exercise program for rotator cuff–related shoulder pain
This will test whether doing shoulder exercises while also performing attention-shifting movements reduces pain and improves function for people with rotator cuff-related shoulder pain.
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Contextually Enhanced Exercise Program for Rotator Cuff‑Related Shoulder Pain
This trial tests whether adding personalized contextual factors to a proven exercise program helps people with rotator cuff–related shoulder pain feel less pain and move better.
-
Dual-task shoulder exercise program for rotator cuff–related pain
This trial tests whether doing shoulder exercises together with simple cognitive tasks helps adults with rotator cuff–related shoulder pain reduce pain and improve function compared with standard shoulder exercises.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.