View clinical trials related to Aspirin Sensitivity.
Filter by:Surgeons are increasingly confronted by patients on long-term low-dose acetylsalicylic acid (ASA). However, the perioperative management of these patients undergo non-cardiac surgery has not yet been clear. This single- arm study was to evaluate the safety of continuous use of ASA in the perioperative period in routine minimally thoracic surgery.
Understanding sources of variability in human drug dosing is important to the beneficial and safe use of any drug. Understanding and applying the science of individualizing a drug dose to a patient is called precision medicine. Aspirin is one of the oldest most utilized medications for its ability to lower fever, relieve pain, and to reduce the stickiness of platelets (tiny blood cells that help your body form clots to stop bleeding. Aspirin dosing is currently the same for all patients and is not individualized. In the last century, aspirin has shown benefit in reducing cancer, stroke, and preventing cardiovascular events after one has already had a heart attack or stroke. Previous human studies have not found consistent positive effects of aspirin when dosed by body weight. Therefore, how should aspirin be dosed in 2019? Aspirin resistance is the failure of aspirin to reduce platelet stickiness and thin the blood and most importantly, is associated with higher risk of heart attacks and strokes. Aspirin resistance may occur due to not taking aspirin on a regular basis, differences in how platelets behave in some persons, use of over the counter pain medicines like Motrin®, reduced amount of drug in the body, and/or a lack of being able to predict a dose for a certain individual. To find out the best way to dose aspirin, the investigators propose to study healthy volunteers (persons without any known disease) with different ages and body sizes to see if aspirin blood levels are tied to platelet stickiness. This information will be used to mathematically build a computer-based picture of aspirin dosing that will help physicians pick the best dose of aspirin for each patient. The investigators will then extend studies for the aspirin dose estimator to be used in other countries in people with heart problems and stroke, recording future events in a randomized (i.e., coin toss) manner, to determine if the ability of the aspirin dose estimator to prevent future heart attacks and stroke compared to people receiving aspirin doses that were chosen without the estimator.
Study clinical characteristics and phenotypes of patients diagnosed with NSAID sensitivity in Thailand
This randomized study compares operative techniques in chronic rhinosinusitis with polyposis (CRSwNP) surgery. It aims to evaluate outcomes in asthma and CRSwNP, safety and costs. The investigators want to see if patients with certain clinical and/or genetic predispositions will benefit from extended surgery. They also aim to find biomarkers for detection and management models for of severe airway inflammation and to further develop markers for progressive disease forms.
This study builds, in part, upon preliminary results generated as part of the Pharmacogenomics Anti-Platelet Intervention (PAPI) Study (NCT00799396). The purpose of this investigation is to assess the impact of genetic variation in the carboxylesterase 1 (CES1) on response to clopidogrel as well as dual antiplatelet therapy (i.e. clopidogrel and aspirin), as assessed by ex vivo platelet aggregometry, in healthy Amish individuals. The investigators hypothesize that participants who carry alleles that modify the activity or expression of CES1 will have altered response to clopidogrel as well as dual antiplatelet therapy.
Aspirin-Exacerbated Respiratory Disease, or AERD, consists of aspirin sensitivity, asthma and nasal polyps. It is currently managed by chronic steroid use, multiple endoscopic sinus surgeries and/or aspirin desensitization. However, these treatments have potential adverse effects. A theory has been postulated that decreasing the level of dietary salicylates may help in long-term control of disease. A current trial is in the works to evaluate the clinical outcomes of decreased salicylate, but measurements of biochemical markers of disease has not yet been done. The hypothesis is that decreased dietary salicylates will result in a decrease in urinary salicylates and inflammatory markers of disease, cys-leukotrienes, which are typically elevated in this disease.
This is a 24 week double-blind study in which subjects will be randomized 2:1 to receive Xolair (Omalizumab) or placebo. 14 subjects will receive Xolair and 7 will receive placebo. Xolair injections will occur every 2-4 weeks. Aspirin desensitization will occur several weeks later. One month after desensitization, the final visit will occur in the GCRC. We hypothesize that administration of Xolair, a monoclonal anti-IgE antibody, prior to the aspirin desensitization will reduce severity of aspirin-induced reaction.