View clinical trials related to Polymyalgia Rheumatica.
Filter by:Giant cell arteritis (GCA), also known as Horton's disease, is an inflammatory arteritis of the large and medium-sized arteries, with an estimated incidence of 17.8/100,000 in people over 50. The disease presents potential ophthalmological, neurological, cardiac and aortic vascular complications, making diagnosis an emergency in cases of suspected Horton's disease. only corticosteroid therapy started as early as possible can prevent these complications. Diagnosis has historically relied on temporal artery biopsy, but the recent ACR/EULAR 2022 classification criteria propose alternatives to this invasive examination, in particular imaging tests such as temporal artery ultrasound and PET scans. Although not included in these latest recommendations, high-definition wall MRI can also provide arguments in favor of this diagnosis, and avoid the need for a temporal artery biopsy, the sensitivity of which is only 75%. The investigators recently demonstrated in a prospective cohort that wall MRI, possibly coupled with temporal artery ultrasound or retinal angiography, was far superior to temporal artery biopsy in diagnostic performance. The main limitation of these imaging tests is the lack of data in the literature on the evolution of abnormalities over time, and in particular after initiation of oral corticosteroid therapy. This uncertainty makes it difficult to use these examinations to monitor disease activity, particularly in cases of suspected relapse, a frequent situation in which the clinician is regularly put at fault due to an often frustrating symptomatology and the possible absence of a frank biological inflammatory syndrome. The investigators propose to conduct a study aimed at describing the evolution of cranial vessel wall abnormalities on wall MRI and ultrasound by systematically repeating these examinations at 1 month, 3 months from the initial MRI performed at diagnosis, in addition to the follow-up performed as part of care at 6 and 12 months from diagnosis. In the event of a relapse in the intervening period, a new MRI scan can be performed and compared with the most recent MRI scan, to look for evidence of disease activity.
The aim of this national pragmatic observational study is to investigate whether the use of new diagnostic imaging modalities facilitates disease stratification that can potentially predict treatment response, relapse risk and complications and hence guide management strategies to improve disease control and reduce disease and treatment related damage.
Longitudinal prospective multicenter Armenian registry of systemic autoimmune, autoinflammatory diseases with constitution of bio-banking.
The research study is being conducted to determine the utility of magnetic resonance imaging (MRI) in identifying inflammation of arteries supplying blood to the head, brain, and eyes. The target population includes patient diagnosed with giant cell arteritis (GCA; temporal arteritis).
Giant cell arteritis (GCA) (or Horton's disease) is a segmental and focal inflammatory arteritis affecting large and medium-sized arteries. Its incidence is estimated at 17.8/100,000 in subjects over 50 years old (and 46/100,000 in subjects over 70 years old). This disease remains a severe pathology due in particular to its vascular, ophthalmological, neurological, cardiac and aortic complications. In case of suspected CAG, management is a real therapeutic emergency. Indeed, only corticosteroid therapy started as early as possible can prevent the occurrence of these complications. The gold standard for the diagnosis of CAG has long been the temporal artery biopsy, but imaging is now considered as a 1st line diagnostic examination for the diagnosis of CAG according to the EULAR 2018 recommendations. Notably, temporal artery MRI has excellent sensitivity and specificity for diagnosis. However, the high diagnostic performance of MRI has been achieved by performing 3D T1 black blood and fat saturation sequences in high resolution (<0.7mm), which are not accessible in all centers in France and worldwide. The realization of identical sequences with a lower resolution could allow a greater generalization of these sequences and improve the diagnostic management of GCA patients, including in non-expert centers. The objective of our study is to investigate the diagnostic performance of several 3D T1 black blood and fat saturation sequences for the diagnosis of GCA.
The purpose of this study is to demonstrate the efficacy and safety of secukinumab 300 milligram (mg) and 150 mg administered subcutaneously (s.c.) for 52 weeks in combination with prednisone tapered over 24 weeks in adult participants with PMR who have recently relapsed.
The objectives of this observational cohort study are : 1. To assess the ability of optic nerve (ON), optic nerve sheath diameter (ONSD) and optic nerve sheath thickness (ONST) measured by ultrasound to predict Giant Cell Arteritis. 2. To evaluate changes in ON, ONSD, ONST measurements in patients with confirmed GCA after three months of therapy 3. To assess dynamic changes in ON, ONSD, ONST measurements in patients with relapsing GCA
The objective of this observational prospective cohort study is to assess if: 1. temporal artery stiffness measurement by applanation tonometry may help predict a final diagnosis of new-onset GCA 2. In patients with a diagnosis of GCA, identify if temporal artery stiffness measured by applanation tonometry improves with treatment.
Polymyalgia rheumatica (PMR) is a systemic inflammatory disorder with unknown etiology and overlapping symptoms with giant cell arthritis and rheumatoid arthritis (RA). The proteomic profile of PMR patients remains uncharacterized and biomarker studies very limited. The primary aim of this study was to thoroughly investigate the lymphocyte expression of melanocortin receptors, and the serum proteome during glucocorticoid treatment of PMR with a focus on acute-phase reactions, the complement system, and pro-inflammatory cytokines.
Giant cell arteritis (GCA) is a type of large vessel granulomatous vasculitis responsible for the inflammation of the aorta and the branches of the external carotid, notably temporal arteries. The diagnosis of GCA relies upon the identification of vasculitis following histopathological analysis of temporal artery biopsy (TAB) showing mononuclear cells infiltration, fragmentation of the internal elastic lamina as well as significant intimal hyperplasia. Apart from its lack of sensitivity, one of the weaknesses of TAB is the delay in obtaining the result due to the time required to prepare the sample for histological analysis. Pursuing the idea to improve TAB performances, our group recently demonstrated the use of full-field optical coherence tomography (FF-OCT) to visualize structural changes associated with the inflammatory processes of GCA. The present work suggests a further use of dynamic FF-OCT on TAB for a direct visualization of the mononuclear cells infiltration to ensure rapid on-site diagnosis of GCA.