Active clinical trials for "Hypersensitivity"

To observe the safety and efficacy of ImageReady™ MR Conditional Pacing System in Chinese subjects

Our primary outcome is to assess the safety of Dotarem in children <2 years old up to 24 hours after Dotarem injection. Patients will be monitored for any adverse events that occur for 2 hours following the completion of the MRI exam. The type of event, time of onset, duration of symptoms, intensity of the reaction (mild, moderate, severe), causality (not related, probably related, related, definitely related, unclassifiable), and subsequent outcome (required treatment, favorable outcome, recovery with sequela, or death) will be documented. Parents will be given instruction sheets on who and when to call should any adverse event occur after discharge. Parents will be called by the radiology department the next day to identify any adverse events that occurred during the first 24 hours after discharge from the hospital. Our secondary outcome is to assess image quality of the exam. The pre-contrast images will be compared to the combined pre- and post-contrast images following administration of Dotarem by radiologists who are blinded to the patients' clinical information to assess for improvement of image quality and delineation of structures with contrast.

The objective of this study is to correlate various diagnostic measurements taken during an escalating dose oral food challenge to the subject's response. This study will investigate whether non invasive objective biomarkers can indicate a positive response to an escalating dose OFC before a systemic reaction occurs.

Study Objective: Allergies affect up to 20% of the population of developed countries and can cause substantial individual disease burden. For some allergies, immunotherapeutic regimens ("hyposensitization") have been established, e.g. for insect venom allergies and pollen allergies. This project aims at identifying the T cell activation potential in vivo from resting T cells of patients undergoing immunotherapy (IT) via a systems biology approach. For the participants, it involves blood draws and stool collection as well as gathering some basic medical information. The participation takes one week for patients undergoing insect venom IT and three months for patients undergoing pollen IT. A control group without a clinical history of allergies is recruited. Blood and stool samples are collected in the same time frames as in allergic patients. This study is a cooperation project between the Centre Hospitalier de Luxembourg (CHL), the Luxemburg Institute of Health (LIH), the University of Luxembourg and the Integrated Biobank of Luxemburg (IBBL).

This study evaluates why people with celiac disease and non-celiac gluten/wheat sensitivity develop rapid onset symptoms within hours of gluten exposure. Half of subjects will be given gluten and half will not.

In a recent series of studies performed by our group, we have shown that exposure to hyperbaric oxygen (HBO) leads to an increase in insulin sensitivity in male subjects with type-2 diabetes (T2DM) and in obese and overweight men without diabetes. The aim of this study is to investigate the relationship between pressure and oxygen in producing this effect, specifically, is this effect measurable in hyperbaric air or is some higher pressure of oxygen required? Aims: To determine whether the insulin sensitising effect of HBO is apparent in hyperbaric air at the same pressure as HBO. To examine mechanisms underpinning the increase in insulin sensitivity following HBO.

Data about aspirin desensitization for patients with coronary artery disease undergoing percutaneous coronary intervention are sparse. This is a prospective, multicenter, observational study including 7 italian centers, to assess safety and feasibility of a standard desensitization protocol in patients with aspirin sensitivity undergoing coronary angiography. Patients with history of aspirin sensitivity undergoing coronary angiography are prospectively enrolled.All patients underwent the desensitization procedure with six sequential doses of aspirin (1, 5, 10, 20, 40, and 100 mg) administered orally at predefined intervals, with the procedure lasting 5.5 hours.All patients are followed for desensitization procedure success, description of reactions due to the desensitization procedure, and in hospital major adverse cardiac events (MACE). All patients are also followed-up for 12 months in order to assess their long-term risk of MACE, compliance with ASA therapy, and late occurrence of side reactions due to ASA sensitivity.

Pollen allergen extracts are prepared locally and checked for efficacy by comparison to imported allergens and specific IgE.

Grass pollen allergens are recognised as a major cause of allergic diseases in humans and animals. Worldwide, at least 40% of allergic patients are sensitised to grass pollen allergens and between 50-90% of hayfever or seasonal allergy sufferers are allergic to grass pollen. ToleroMune Grass is a novel, synthetic, allergen-derived peptide desensitising vaccine, currently being developed for the treatment of grass allergy. The purpose of this optional observational follow-on study is to further evaluate rhinoconjunctivitis symptoms on exposure to Grass in the EEU among subjects who completed all dosing visits in study TG002 approximately two years after the start of treatment.

Given that glutamate carboxylation or decarboxylation is key to the metabolic role of osteocalcin (at least in mouse models) and that carboxylation is vitamin K dependent, it is critical to isolate the effect of vitamin K manipulation on carboxylation of osteocalcin and its subsequent effect on glucose metabolism in clinical trials. The purpose of this randomized, double-blind, placebo-controlled clinical trial in adults is to determine whether eight weeks of daily supplementation with vitamin K2 (menaquinone-7) can improve markers in blood associated with diabetes risk.