View clinical trials related to Hypersensitivity.
Filter by:This study will evaluate the effectiveness of an experimental dentifrice containing stannous fluoride, an established dentine tubule occlusion technology, at reducing dentine hypersensitivity (DH) compared to a negative control dentifrice. The test and control dentifrices will be administered for a total of 8 weeks, with assessments (via evaporative air and tactile stimuli) at baseline, and after 4 and 8 weeks twice-daily use.
Today, we know that olfactogustatory alterations occur in cirrhotic patients before the liver transplant but no study has been conducted to show eventual disturbances after the transplantation able to explain modifications in eating behaviour. In parallel, the metabolic status, itself dependent on liver metabolism, influences food preferences and is modified after the transplantation as the liver recovers its ability to store glycogen, but is not able to inform the brain as the afferent nerve impulses have been suppressed. The innovative aspect of this project is to provide information on the importance of the liver in the regulation of energy homeostasis. The results of this study will improve our understanding of eating behaviour and olfactogustatory sensitivity and allow us to orient liver transplant patients towards appropriate diets.
For decades, it has been known that post-meal blood glucose concentrations were associated with the risk of T2D, which was reflected in early diagnostic guidelines. The oral glucose tolerance test (OGTT) has been used since at least 1923 and has remained the most common test for assessing glucose tolerance. Arterial blood (or arterialised blood using heated hand technique) is most appropriate for determining glucose tolerance and insulin sensitivity since this best represents the concentrations of metabolites and hormones that peripheral tissues are exposed to. It is essential to investigate whether venous blood (sometimes used during an OGTT) is representative of arterialised blood during an OGTT, and under different metabolic conditions. The investigators want to understand whether OGTT-derived insulin sensitivity indices differ from venous and arterialised blood; and 2) investigate whether metabolic status (i.e. rest vs lower-limb exercise) influences the difference between forearm venous and arterialised concentrations of glucose and insulin during an OGTT.
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.
Patients with a complete drug allergy work-up to betalactam antibiotics were contacted (by mail) and asked to answer a questionnaire regarding the tolerance upon readministration of a negatively tested beta-lactam.
The COBIOPHAD project targets the development of a highly sensitive, selective, and multiplexed diagnostic device to provide a quick and inexpensive in vitro test to address the most prevalent drug hypersensitivity to betalactams antibiotics, (BLCs). During a retrospective study, BLC structures involved in drug hypersensitivity will be identified from sera of allergic patients (versus controls) and coupled on the device. A prospective study will be performed for the recruitment of samples corresponding to patients with known IgE hypersensitivity to BLCs based on results from allergy tests and clinical history. Controls will include: non-allergic individuals with known tolerance to betalactams. The samples will be used for the validation of the COBIOPHAD device in real settings.
Drug provocation tests (DPT) are widely in case of suspicion of drug hypersensitivity (and in the absence of contraindications), but there are no standardized protocols and most groups use hypothesis (clinically-driven) protocols. investigators used 20 year experience in drug hypersensitivity to analyse retrospectively 171 patients (accounting for 182 positive DPT to beta-lactams). Using survival analysis, they identified optimal doses to include in a data-driven protocol. This data-driven protocol will be applied to new prospective patients, to test its safety and benefits (gain in time, hospital and patient benefits).
This is a single blind randomised controlled clinical trial in uncontrolled type 2 Diabetes mellitus patients on oral glucose lowering agents, and naive to incretinomimetic. Participants will be randomised in two Arms : arm 1 receiving Liraglutide at 1,2 mg/day and arm 2 Vildagliptine at 100mg/day over 14 days. The two arms will be compared for 14-day changes in insulin secretion and insulin sensitivity.
This single center, comparative design study will be used to investigate the efficacy of an experimental stannous fluoride containing dentifrice in relieving dentinal hypersensitivity (DH) after short term use compared with a standard fluoride dentifrice.
Introduction: Dentin hypersensitivity (DH) could be defined as a brief and sharp pain in response to thermical, chemical, tactile and osmotic stimuli, which cannot be attributed to any dental condition or pathology. Multiple therapies for the treatment of DH have been studied, including equivocal evidence about the efficacy of potassium nitrate salts and recent investigations a promising new 8% Arginin dentifrice. Aim: The aim of this study is to compare the clinical effectiveness of 8% arginine/1450ppm sodium monofluorophosphate (D1) and 5% potassium nitrate/2500ppm sodium fluoride (D2) dentifrices in the treatment of dentin hypersensitivity. Methods: Parallel-design, double-masked, randomized controlled clinical trial. Fifty healthy volunteers aged 18 to 70 years who attend at the Faculty of Dentistry , University of Chile, with DH and a visual analog scale (VAS) score ≥4 at least in two anterior and/or premolar teeth, will be selected and randomized into two treatment groups: T1 (n=25): 8% arginine/1450 ppm sodium monofluorophosphate dentifrice (D1); and T2 (n=25): 5% potassium nitrate/2500 ppm sodium fluoride dentifrice (D2). Environmental, dietary and oral hygiene habits will be recorded in a clinical chart, while O´Leary plaque index and dentin hypersensitivity (DH) measurements will be clinically assessed, at baseline, 4 and 8 weeks. DH will be evaluated through the mean VAS value in response to evaporative and thermal stimuli at baseline, 4 and 8 week follow-up. The data will be analysed through Stata® V11 program.