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Using Novel Imaging to Rethink Diagnostic and Treatment Strategies for Polymyalgia Rheumatica

Key facts

Who runs it
Kresten Krarup Keller
Where
Denmark7 sites in 1 countryChoose a country to see its sites
Trial code
Status
Recruiting
People taking part
149 people, planned
Started
21 Aug 2025
Expected to end
31 Aug 2032
Type of study
Observational
Treatments tested
  • PET/MRI
  • PET/CT with 18-FDG
Record updated
1 October 2025

Who can take part

Age
50 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 12 criteriaShow less

Who can take part

  • Patients suspected of PMR seen at the Department of Rheumatology/internal medicine in Aarhus, Silkeborg, Horsens, Gødstrup, Randers, and Svendborg
  • Age above 50
  • Proximal extremity pain

Who cannot take part

  • Previous prednisolone treatment for GCA/PMR
  • For MRI: Implants contraindicating MRI and BMI>150 kg
  • Active malignant cancers within the last 5 years (except basal cell carcinoma)
  • Other known inflammatory rheumatic diseases (e.g. rheumatoid arthritis, polymyositis, spondyloarthritis, psoriatic arthritis, gout)
  • Uncontrolled diseases (e.g. severe active asthma, cardiac disease with NYHA class IV)
  • Oral, intravenous, intra-articular or intramuscular glucocorticoids within the last 2 months
  • Unable to give consent
  • Proximal extremity pain duration for more than one year
  • Symptoms of GCA (headache, scalp tenderness, jaw or tongue claudication, vision disturbances attributable to GCA, limb claudication)

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

Polymyalgia rheumatica (PMR) is the most common chronic inflammatory rheumatic disease among the elderly and is characterized by proximal extremity pain and fatigue. Treatment with prednisolone carries several significant adverse effects, and it is therefore essential to avoid unnecessary treatment. However, clinical diagnosis and even imaging such as positron emission tomography and computed tomography (PET/CT) has low diagnostic accuracy, which decrease after start of prednisolone. The purpose is to evaluate a new method to diagnose PMR with PET/CT using magnetic resonance imaging (MRI) for informing the interpretation of PET in 111 patients suspected of PMR at baseline and after 8 weeks prednisolone treatment. In addition, a treatment initiation strategy guided by clinical diagnosis combined with PET will be evaluated in 100 patients with newly diagnosed PMR.

The group in the trial

  • Patients with and suspected of polymyalgia rheumatica

    The study evaluate a new method to diagnose PMR with PET/CT using magnetic resonance imaging (MRI) for informing the interpretation of PET in 111 patients suspected of polymyalgia rheumatica (PMR) at baseline and after 8 weeks prednisolone treatment. In addition, a treatment initiation strategy guided by clinical diagnosis combined with PET will be evaluated in 100 patients with newly diagnosed PMR (estimated 64 from the 111 patients with suspected PMR, and additionally 38 diagnosed with PMR of which approximately 34 will have PMR without concurrent giant cell arteritis). Patients with a clinical diagnosis of PMR and a negative PET will not be started in routine treatment, but receive intramuscular glucocorticoids, which can be followed by oral prednisolone 15 mg tapered during a maximum of 3 month after diagnosis at discretion of the investigator.

    Treatment: PET/MRI and PET/CT with 18-FDG

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

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Data and sources

Registry record
Listed on ClinicalTrials.gov.
Record updated
1 October 2025