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Browse 7,290 clinical trials for ulcerative colitis. Find studies that match your criteria and connect with research centers.
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NCT02319655
During the last decade optical coherence tomography (OCT) extended the possibilities for in vivo macula diagnostic and was increasingly used for pre- and post-operative imaging of retinal diseases. Spectral-domain optical coherence tomography (SD-OCT) with its increased scanning speed and image-resolution provides more detailed information of microstructures in the macula. Epiretinal membrane (ERM) is a disorder involving the posterior pole of the eyeball. It can be idiopathic or caused secondarily in various ocular conditions, such as uveitis, trauma, retinal detachment or retinal vascular diseases. In patients who suffer from loss of vision and metamorphopsia, vitrectomy and membrane peeling is usually performed to remove the ERM. Different study groups showed that intraoperative use of SD-OCT is possible. Two groups already achieved to work operation microscope integrated SD-OCT setup. Due to the high axial resolution of the SD-OCT some groups reported about an increased hyporeflective zone in the subfoveal region appearing directly after the membrane peeling procedure. It was hypothesized that this phenomenon could be an expression of surgical trauma, as this hyporeflective zone disappears in follow up OCT 10 days after surgery.
NCT03327701
Severe asthma affects 5-10% of more than 300 million asthmatics. Ten to twenty percent of individuals suffering from asthma do not respond well to current treatment due to the complexity of the different mechanisms underlying asthma pathogenesis, and sometimes due to an insufficient effect of treatment on underlying airway inflammation. Consequently, some asthmatics have poorer quality of life due to: frequent asthma symptoms, regular medical or emergency visits, limitation in their activities of daily living, including exercise. It is believed that the benralizumab can help to reduce airway inflammation and thus improve exercise tolerance in individuals with asthma. The main objective of this study is to determine the effect of benralizumab on exercise-induced bronchoconstriction (EIB) and exercise tolerance in moderate to severe eosinophilic asthmatics, in comparison with baseline values and a placebo treatment.