Spondyloarthritis
Conditions
Keywords
magnetic resonance imaging, sodium fluoride positron emission tomography
Brief summary
The purpose is to compare detection of axial inflammatory lesions in patients affected by spondyloarthritis (SpA) with sodium fluoride positron emission tomography (PET) and magnetic resonance imaging (MRI), the reference technique. It would be interesting to show the superiority of sodium fluoride PET on MRI for diagnosis of inflammatory lesions. It could be used for diagnostic care but also therapeutic care of patients with early forms of spondyloarthritis. Secondary purposes are: * To evaluate performances of sodium fluoride PET in detection of SpA peripheral damage (except spine and sacroiliac joints) * To evaluate bone inflammation (axial and peripheral) with sodium fluoride PET and compare these data to clinic-biologic parameters used in clinical practice (BASDAI, BASFI, BASMI, sedimentation rate, C-reactive protein (CRP)) and to structural evaluation (sacroiliac New York, mSASSS and BASRI scoring methods) * To study correlation of axial and peripheral bone inflammation (spine and sacroiliac joints) evaluated with sodium fluoride PET with biologic markers of inflammation and bone remodeling (MMP-3; DKK-1, IL-6, IL-17, TNF-α). Known biologic markers of inflammation in SpA are correlated to activity obtained with MRI. It is interesting to compare to activity obtained with PET. Moreover, it has been recently showed the disassociation of inflammation and structural progression (anti-TNF treatments do not prevent structural progression) that is associated to markers of bone remodeling whose activity is influenced by an activation/inhibition system of biologic markers of inflammation.
Interventions
OTHERBlood sample
PROCEDURESodium fluoride Positron Emission Tomography
OTHERMagnetic Resonance Imaging
OTHERRadiography
Sponsors
Central Hospital, Nancy, France
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* 18-50 year-old patients affected by axial or mixed SpA (ASAS criteria) or \>18 year-old patients according to New York criteria * Patients with bone marrow edema lesions in sacroiliac joints and/or spine detected with MRI * No therapeutic changes between hospitalization for evaluation of SpA activity and inclusion visit * Informed consent * Affiliation to social security plan
Exclusion criteria
* Refusal or impossibility of signed informed consent * Doubt about possible pregnancy in women of childbearing potential * Pregnancy and breastfeeding * History of drug addiction, alcoholism, psychological problems, severe co-morbidities * Renal insufficiency (creatinine clearance \< 60 ml/min) * Juridical protection
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Concordance between binary topographic evaluations of bone inflammation in PET data and MRI data | up to 4 weeks | presence or absence of inflammatory sites (MRI) or hyperfixation (PET) in 28 sites (24 vertebrae and 4 sacroiliac joints) |
| Concordance between semi-quantitative evaluation of bone inflammation in MRI data and PET data | up to 4 weeks | PET: BME score adapted to PET for spine and modified SPARCC score adapted to PET for sacroiliac joints MRI: Berlin score BME for spine and SPARCC score for sacroiliac joints |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Structural evaluation with BASRI score | day 0 | — |
| Levels of specific biologic markers of inflammation and bone remodeling in blood | up to 4 weeks | MMP-3, DKK-1, IL-6, IL-17, TNF-α |
| Standard biologic evaluation of sedimentation rate | day 0 | — |
| Structural evaluation with New York score | day 0 | — |
| Evaluation of spinal mobility with BASMI index | up to 4 weeks | — |
| Evaluation of disease activity with BASDAI index | up to 4 weeks | — |
| Evaluation of functional impact with BASFI index | up to 4 weeks | — |
| Standard biologic evaluation of C-reactive protein | day 0 | — |
| Structural evaluation with mSASSS scores | day 0 | — |
Countries
France
Outcome results
None listed