Comparison of Sodium Fluoride Positron Emission Tomography and Magnetic Resonance Imaging of Spine and Sacroiliac Joints for Detection of Inflammatory Lesions in Spondyloarthritis Patients (FNa)

Central Hospital, Nancy, France

Status

Completed

Conditions

Spondyloarthritis

Treatments

Other: Magnetic Resonance Imaging

Other: Radiography

Other: Blood sample

Procedure: Sodium fluoride Positron Emission Tomography

Study type

Interventional

Funder types

Other

Identifiers

NCT02869100

2012-A00568-35

Details and patient eligibility

About

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.

Enrollment

26 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

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