View clinical trials related to Sarcoidosis.
Filter by:This study evaluates the significance of differences in serum angiotensin converting enzyme and lysozyme levels of patients with ocular involvement of other autoimmune inflammatory and infectious diseases.
This cross-over study of 12 patients with sarcoidosis will look at two different widely-used accelerometer devices. These devices are wrist worn and similar in size to a wrist-watch. They measure daily activity levels. The investigators hope to use one of these devices in the future within a randomised-controlled trial looking at using methylphenidate for the treatment of sarcoidosis-associated fatigue. In order to ensure that the investigators choose the ideal device the investigators wish to compare the GENEActiv and ActiGraph GT3X devices. Participants will be required to wear the devices for 7 days each, with 6 patients beginning with the GENEActiv device and changing to the ActiGraph device after 7 days, the remaining 6 participants starting with the Actigraph before changing to the GENEActiv. Patients will complete a short exit questionnaire about their experience with the devices and their preference. The best device will be determined by both patient preference and reliability of collecting data.
Double blind placebo controlled trial of riociguat for sarcoidosis associated pulmonary hypertension
Endobronchial ultrasound (EBUS) guided transbronchial needle aspiration (EBUS-TBNA) is an excellent tool for sampling enlarged mediastinal and hilar lymph nodes, but only provides needle aspirate samples which are often adequate for cytological examination only. More advanced histopathological and immunocytopathological assessment of tissue samples, which is particularly important in the diagnosis and staging of cancer, is often not possible with the small cellular samples obtained by EBUS-TBNA. A new transbronchial nodal aspiration needle (the Flex 19G EBUS-TBNA needle) has been developed with a larger needle diameter and more flexibility at the distal end, allowing better access to some lymph nodes stations. This needle can be passed down an EBUS scope and can hypothetically circumvent the deficiencies of EBUS-TBNA highlighted above by providing tissue adequate for histological assessment rather than cytological assessment alone. This study aims to establish whether the use of the Flex 19G EBUS-TBNA needle can improve the diagnostic yield of EBUS sampling procedures compared to the use of the conventional TBNA needle, thereby allowing more accurate diagnoses and reducing the need repeat procedures or more invasive surgical biopsies, without causing an increase in complication rates. Patients with enlarged mediastinal and hilar lymph nodes referred for EBUS-TBNA will be randomised to have their nodes sampled by either the EBUS-TBNA needle (conventional procedure) or the novel Flex 19G EBUS-TBNA needle. The investigators hope to recruit 250 patients over a 24 month period.
The purpose of this research study to find out if a drug called OctreoScan or DOTATATE can help doctors diagnose people with cardiac sarcoidosis better. OctreoScan and DOTATATE are both approved by the U.S. Food and Drug Administration (FDA) to diagnose certain tumors.
Rationale: Endosonography with mediastinal/ hilar nodal sampling is the test of choice to diagnose sarcoidosis stage I and II - in case tissue verification of noncaseating granulomas is indicated. However, the optimal endosonographic approach (endobronchial or transoesophageal) for mediastinal nodal sampling is under discussion. Secondly, which needle size or type provides optimal tissue sample quality for granuloma detection is unknown. The novel 25 Gauge (G) beveled ProCore needle, allows tissue acquisition of small core biopsies in addition to cytological aspirates. Hypotheses: 1. Esophageal ultrasound guided (EUS-B) sampling of intrathoracic lymph nodes has a 14% higher granuloma detection rate compared to endobronchial ultrasound (EBUS) guided nodal sampling in patients with suspected sarcoidosis stage I/II. 2. 25G ProCore needles provide superior sample quality compared to conventional 22G needles in patients with suspected sarcoidosis stage I/II. Study design: Investigator initiated, randomized clinical trial. Setting: International, multicenter (university and general hospitals) Study population: Consecutive patients with a clinical and radiologic suspicion of sarcoidosis stage I or II and an indication for tissue verification of non-caseating granulomas are eligible for inclusion. Intervention: EBUS vs EUS-B, simultaneously comparing the standard vs novel ProCore needles. Main study endpoints: 1. The granuloma detection rate of endobronchial (EBUS) guided sampling of intrathoracic lymph nodes compared to esophageal (EUS-B using the EBUS scope) guided sampling in patients with suspected sarcoidosis stage I/II. 2. Sample quality of conventional 22G vs. 25G ProCore needles in patients with suspected sarcoidosis stage I/II.
The objective is this study is to test whether use of Acthar gel in the context of sarcoidosis will lead to improved symptoms and lung function and correlate with decreased levels of predictive blood biomarkers, like chemokine ligand 9 (CXCL9).
The objective of this study is to determine the presence of bacterial species, and the immunologic and molecular mechanisms of granuloma formation that might be involved in the pathogenesis of sarcoidosis. The investigators will collect peripheral blood and bronchoalveolar lavage fluid samples to isolate bacterial DNA and blood monocytes and lymphocytes. Specimens will be obtained from patients with sarcoidosis, with non-sarcoid lung disease, and healthy volunteers to directly compare the bacterial species present and the characteristics of cells thought to be involved in granuloma formation.
The purpose of this study is to compare the diagnostic efficacy of nested and realtime polymerase chain reaction for Mycobacterium tuberculosis using EBUS-TBNA samples in patients with isolated intrathoracic lymphadenopathy.
This trial compares the yield of cTBNA (conventional Transbronchial Needle Aspiration) versus the EBUS-TBNA (Endobronchial Ultrasound guided TBNA) for obtaining cytology when they are combined with endobronchial biopsy and transbronchial lung biopsy and rapid onsite examination (ROSE) of the obtained smears in the diagnosis of suspected sarcoidosis patients visiting our hospital for evaluation of mediastinal lymphadenopathy.