View clinical trials related to Hypersensitivity.
Filter by:The aim of this study is to define local immune responses in the GI tract to food antigens in IBS patients, with and without Brachyspira infection, using advanced imaging. We hypothesize that Brachyspira infection can cause IBS symptoms by inducing loss of oral tolerance to dietary antigens through development of food-specific intestinal immune reactions and subsequent development of visceral hypersensitivity. During this study, the investigators will perform either confocal laser endomiscroscopy (CLE) or colonoscopic antigen provocation test (COLAP) to test to which food items the participants react to. Furthermore, the investigators will perform rectal barostat examination and a sigmoidoscopy without laxatives. The investigators will collect biological samples and the participants will complete several questionnaires.
This study investigates the efficacy of MBSR training in alleviating stress-related symptoms among individuals with high sensory processing sensitivity. Participants will be randomly allocated to either the MBSR group or the control group. The primary hypothesis is that participants in the MBSR group, relative to control group, will have lower depression-anxiety-stress scores post-intervention, after controlling for baseline scores. The secondary hypothesis is that in the MBSR group, relative to control group, other mental health, physical health and well-being outcomes, as well as potential mindfulness mechanisms will also improve, after controlling for baseline scores.
This interventional study aims to validate an early heated protein introduction protocol in cow's milk allergic children who already developed tolerance towards extensively heated cow's milk, in order to speed up the development of complete cow's milk tolerance. Natural complete tolerance induction towards cow's milk takes several years of strict cow's milk avoidance with high risk of anaphylaxis by accidental cow's milk intake. By shortening the time towards complete tolerance, not only the quality of life of both children and parents ameliorates drastically, the time frame for potential anaphylactic reactions is also strongly reduced and can be considered as a preventive strategy to reduce allergic reactions too. Moreover, this strategy has proved efficient for hen's egg allergy. The main question this study wants to answer is whether a 12 months stepwise heated cow's milk introduction (either by gradual reduction of the cooking time or by the use of the Flemish Milk Ladder) in 20'-cooked cow's milk tolerant subjects, results in a larger proportion of complete cow's milk tolerant children after 12 months compared to natural tolerance induction (with 20' cooked milk introduction only).
Evaluate the safety and clinical efficacy of new dental desensitizers in the treatment of dentin sensitivity, including the relief of sensitivity symptoms and the duration of efficacy.
The aim of this study is to confirm the clinical dentin hypersensitivity (DH) efficacy of a 5 percent (%) calcium sodium phosphosilicate (CSPS) toothpaste.
This study is researching an experimental drug called linvoseltamab when combined with another drug called dupilumab. The study is focused on patients who have IgE-mediated food allergy. If the patient has an allergy, the immune system overreacts to an allergen (eg, certain foods such as peanuts, milk, shellfish) by producing antibodies called IgE. IgE antibodies are released by cells such as plasma cells. These antibodies and allergen bind to other cells that release chemicals, causing an allergic reaction. The aim of the study is to see how safe and tolerable linvoseltamab is when combined with dupilumab. The study is looking at several other research questions, including: - What side effects may happen from taking the study drugs - Whether linvoseltamab when combined with dupilumab has an effect on other types of antibodies in the blood at different times - How much study drug(s) is in the blood at different times
This study will evaluate the safety, tolerability, pharmacokinetics, and CRP-lowering effect of quarterly and monthly subcutaneous administration of TOUR006 in participants with chronic kidney disease and elevated hs-CRP.
Familial Mediterranean Fever (FMF) is a chronic hereditary autoinflammatory disease caused by mutations in the MEditerranean FeVer (MEFV) gene which codes for pyrin. Dysfunction of this protein determines an inappropriate response to inflammatory stimuli. The clinical course of the disease is characterized by recurrent episodes of fever and inflammation of the serous membranes, which manifest with chest, abdominal and joint pain. Several studies suggest a possible association between acute FMF attacks and dietary triggers, including wheat. However, it is still unclear to what extent wheat is responsible for the reactivation of FMF and if, between one acute attack and another, patients with FMF experience other symptoms, both gastrointestinal and extraintestinal, characteristic of gluten/wheat sensitivity not linked to celiac disease or immunoglobulin E (IgE)-mediated wheat allergy (i.e. Non-Celiac Wheat Gluten/Sensitivity, NCGS/NCWS). Therefore, this study aims to evaluate the appearance of symptoms compatible with an acute attack of FMF following the ingestion of wheat or other foods, and the prevalence of self-perceived gluten/wheat sensitivity in patients with FMF.
Misophonia, the inability to tolerate certain repetitive distressing sounds that are common, is gaining, recognition as an impairing condition. It is not a well-understood condition and there are no known treatments. The purpose of this study is to test a new misophonia intervention that uses emotion regulation strategies and different types of brain stimulation on misophonic distress. This study will examine changes in brain activity during presentation and regulation of misophonic versus distressing sounds. The study team plans to alter activity in a key area of the brain responsible for emotion regulation circuitry over 4 sessions with the goal to test if this intervention helps misophonic distress. Sixty adult participants with moderate to severe misophonia will be recruited and taught an emotion regulation skill and randomly assigned to receive one of two types of repetitive transcranial magnetic stimulation (rTMS). The study includes 9-10 visits: the remote screening visit(s), the initial MRI, the four neurostimulation sessions, the follow-up MRI, and two additional remote 1- and 3-month follow-up visits.
Study the correlation between in vitro drug sensitivity screening of digestive tract tumor organoids and their clinical efficacy in anti-tumor treatment, evaluate the use of digestive tract tumor organoid drug sensitivity to predict the therapeutic effect of anti-tumor drugs, and explore new methods for personalized and precise treatment of esophageal cancer, gastric cancer, colorectal cancer, and gastrointestinal stromal tumors.