Clinical trial Recruiting at 8 sites Interventional Ages 60 to 85

Comparing shoulder surgery to exercise for rotator cuff problems

Official title: Prosthesis Versus Active Exercise Program in Patients With Rotator Cuff Arthropathy Eligible For Reverse Shoulder Arthroplasty: the ReAct Multicenter, Randomized Controlled Trial

Run by University of Aarhus · NCT04864158 · Data updated 2026-11-12

This study tests whether shoulder surgery or a 12-week exercise program works better for people with rotator cuff problems.

Quick facts

Study typeInterventional
Ages60 Years to 85 Years
SexAll
Enrollment102 (estimated)
SponsorUniversity of Aarhus
Academic / other
Locations8 sites (Aarhus N and 7 other locations)
StatusRecruiting
StartedMay 28, 2021
Main results expectedJanuary 2027
Study endsJanuary 2037
Registry record updatedJuly 2, 2026
Trial IDNCT04864158 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are patients aged 60-85 years with rotator cuff arthropathy eligible for reverse shoulder arthroplasty.

Probably not a fit

Patients with previous shoulder fractures, other types of arthritis, or neurological diseases affecting shoulder mobility may not benefit from this study.

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

What this trial studies

This trial investigates the effectiveness of reverse shoulder arthroplasty (RSA) compared to a 12-week physiotherapist-supervised exercise program in patients with rotator cuff arthropathy. Participants eligible for RSA will be randomly assigned to either receive the surgical intervention followed by standard rehabilitation or to engage solely in the exercise program. The primary outcome will be assessed using the Western Ontario Osteoarthritis of the Shoulder index score at 12 months, with follow-ups at various intervals. The study aims to determine if surgical treatment leads to significantly better outcomes than non-surgical exercise therapy.

Why it matters

Potential benefit: If successful, this study could provide evidence for the most effective treatment approach for patients with rotator cuff arthropathy, potentially improving pain management and functional outcomes.

How similar studies have gone: Previous studies have suggested the need for trials comparing surgical and non-surgical treatments for shoulder conditions, indicating that this approach is novel and underexplored.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients 60-85 years
* Eligible for RSA
* Rotator cuff arthropathy according to Hamada grade 3, 4 and 5 (33)

Exclusion Criteria:

* Previous shoulder fracture (fracture of the proximal humerus or glenoid fracture)
* Planned other upper extremity surgery within six months
* Rheumatoid arthritis or other types of arthritis not diagnosed as primary glenohumeral OA
* Cancer diagnosis and receiving chemo-, immuno- or radiotherapy
* Neurological diseases affecting shoulder mobility (e.g. disability after previous stroke, multiple sclerosis, Parkinson's, Alzheimer's disease)
* Other reasons for exclusion (i.e. mentally unable to participate) or planned absence for more than 14 days in the first 3 months after baseline test.
* Unable to communicate in the participating countries respective languages

Where it's running

  • Aarhus University Hospital
    Aarhus N, Denmark
    Recruiting
  • Esbjerg Hospital
    Esbjerg, Denmark
    Recruiting
  • Aalborg University Hospital
    Farsø, Denmark
    Recruiting
  • Silkeborg Regional Hospital
    Silkeborg, Denmark
    Recruiting
  • Viborg Regional Hospital
    Viborg, Denmark
    Recruiting
  • Tartu University Hospital
    Tartu, Estonia
    Recruiting
Show 2 more locations
  • Tampere University Hospital
    Tampere, Finland
    Recruiting
  • Oslo University Hospital
    Oslo, Norway
    Recruiting

Study contacts

  • Principal investigator: Josefine B. Larsen, MSc — Aarhus University Hospital and Aarhus University
  • Study coordinator: Josefine B. Larsen, MSc
  • Email: josefinebl@clin.au.dk
  • Phone: 4526237771

Similar studies

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

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.