
Assessment of Rituximab's Immunomodulatory Synovial Effects (The ARISE Study)
Rheumatoid ArthritisUsing repeated arthroscopic biopsies of patients with rheumatoid arthritis, the researchers will assess changes in the immune response that occur as a result of treatment with rituximab.

An Efficacy Study of Secukinumab In Enthesitis of Psoriatic Arthritis Patients
Psoriatic ArthritisGiven the role of IL-17 in the development of entheseal-driven pathology, a therapeutic strategy aimed at blocking IL-17 would be a logical option for the treatment of enthesitis in psoriatic arthritis patients. This study will be the first randomized trial of a biologic therapy in participants with psoriatic arthritis, using imaging test.

Blood Sample Collection Study for Pharmacogenomic Characterization of Participants That Previously...
Rheumatoid ArthritisThe purpose of this study is to obtain blood samples from up to 14 participants who previously received namilumab in the previous study M1-1188-002-EM (PRIORA, [NCT01317797]) to correlate genetic markers with clinical outcomes.

Role of Ultrasound for Evaluating Rheumatoid Arthritis in Remission
Rheumatoid Arthritis in RemissionThe objective of this study is to determine the longitudinal relation between clinical remission and ultrasound (US) remission in Rheumatoid arthritis (RA). At a patient level, US-detected residual synovitis (evaluated both by US grey-scale signals and power Doppler signals) is frequent in patients with RA in clinical remission. Several longitudinal studies reveal an association of US-detected residual synovitis and risk of relapse and radiographic progression, in individual patients and joints, over 1-2 years. However, the longitudinal relation between clinical remission and US remission is not so well-known and it is possible that clinical remission arrive before ultrasound remission. Thus arise the question as to whether the presence of US-detected residual synovitis require to adapt the treatment to ultrasound findings or to simply increase the patient care. The investigator propose to conduct a prospective, bi-center, non randomized study.

Weight-Bearing Tomosynthesis In Evaluation of Foot/AnkIe
ArthritisThis study aims to compare digital tomosynthesis with radiography and weight-bearing CT as an imaging technique to assess arthritis in the foot and ankle.

ARTEMIS Synovial Markers in Arthritis Childhood
Septic ArthritisJuvenile Idiopathic ArthritisThe aim of this study is to find markers that could differentiate infectious and inflammatory arthritis. The investigators want to find markers by differential analysis by compare synovial fluids of septic and inflammatory arthritis. The investigators will use for this analysis, proteomics, cytokine dosage and monocyte typing by flow cytometry analysis. The investigators will use one marker or a score with biological and clinical data to discriminate arthritis of infectious and inflammatory etiology.

Cemented Marathon/Corail Versus Pinnacle/Corail
Arthritis of the HipA randomised, comparative, prospective, single-blinded trial of two hip prosthesis: Marathon cemented all-poly acetabular cup(Depuy, Warsaw, Indiana), Corail uncemented femoral stem(Depuy, Warsaw, Indiana), 32mm Alumina Biolox Forte femoral head(Depuy, Warsaw, Indiana) and Pinnacle/Marathon uncemented cup(Depuy, Warsaw, Indiana), Corail uncemented femoral stem(Depuy, Warsaw, Indiana), 32mm Alumina Biolox Forte femoral head(Depuy, Warsaw, Indiana) There will be a further in-group randomisation to a Corail femoral stem with or without a collar, creating a number of 4 study-groups in total. The aims of the study are: To compare polyethylene wear and migration of the moderately cross-linked Marathon polyethylene in a cemented version(Marathon) and in an uncemented cup(Pinnacle/Marathon) To evaluate micromigration and periacetabular bone mineral density of the 2 cups using radiostereometry(RSA) To evaluate the migration patterns and proximal femoral bone density changes around the Corail stems with and without a collar

Targeted Treatment Early With Etanercept + Methotrexate vs.T2T Care for DMARD-naïve Early RA Patients...
Rheumatoid ArthritisThe main aim of the study is to determine the clinical utility of naive T-cell stratification for rationalising treatment with methotrexate (MTX), for DMARD-naive early RA patients. Thus, it aims to determine whether TNFi therapy (Benepali) instituted as first-line therapy in DMARD-naive early RA patients with poor T-cell prognostication confers better outcomes (clinical, structural and immunological). Hence, this would enable early targeted treatment for those with a poorer prognosis based on their immunological status.

Validation of Self-administered Questionnaire for Assessing Calcium Intake in Patients With Multiple...
Multiple SclerosisRheumatoid ArthritisThe main objective of this study is to measure, in patients with MS or Chronic Inflammatory Arthritis (CIA), the correlation between two calcium intake assessment methods: A self assessment questionnaire of calcium intake (QALCIMUM®) versus a food survey serving as a reference (gold standard) and based on data from CIQUAL *. * CIQUAL Data: Nutritional food composition table available on the website of the ANSES (National Agency for Sanitary Security of Food, Environment and Labour), published by the Observatory of the Nutritional Quality of Foods. This table includes 1500 sheets of 58 nutritional components. The data is integrated into the software (DATAMEAL) for calculating the ingesta parameters at the Nîmes University Hospital.

Preoperative Versus Postoperative Start With Thromboprophylaxis in THA (Total Hip Arthroplasty)...
Arthritis of the HipTransfusion Related Complications2 moreThe purpose of this study is to determine if there are differences in clinical events, i.e bleeding with associated morbidity, if thromboprophylaxis with LMWH (Low Molecular Weight Heparin) is initiated before or after surgery.