Active clinical trials for "Drug Hypersensitivity"

Adverse drug reactions are an important public health consern that affects physician prescriptions and practice. The responsibilities of healthcare professionals in monitoring, prevention, treatment and reporting of drug hypersensitivity reactions and drug allergies are essential for patient safety. Providing drug safety must be one of the main goals to be achieved for every member of our society. In our study, we planned to evaluate the knowledge, attitudes, and behaviors of healthcare workers in our country about drug hypersensitivity reactions in pediatric patients and to determine the risk factors that may affect them.

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.

A recent study has shown that certain drug allergies were actually related to an immune system against certain viruses. The aim of the study is to evaluate, in patients taking antiepileptic drugs, if this treatment induces proliferation of these viruses and secondarily an immune response that would promote the development of a rash. In particular, will be studied whether these drugs can induce virus reactivation "dormant" in the immune system. This study will not affect the usual follow-up proposed by investigators, with the exception of some additional blood samples.

The objective of this study was to rule out a greater than 10% incidence of hypersensitivity to Vitrase following a single intradermal injection of 3 USP units Vitrase. Less than or equal to 10% hypersensitivity response was considered acceptable.

Penicillin is one of the earliest discovered antibiotics and a drug of choice for several infections. Up to 10 to 20% of all patients in clinical trial are labeled as penicillin allergic. Most of these patients do not have a true allergy but few have had it verified. Approximately 80% of patients with IgE-mediated penicillin allergy lose their sensitivity after 10 years. Several studies have been conducted denying the risk of sensitization following negative testing of penicillin allergy. Investigators have not had the same experience and have therefore decided to conduct a retrospective study review of 83 adult outpatients with a distant penicillin allergy label and evaluate outcomes of skin retesting six weeks following Drug Provocation Test and challenge.

False diagnosis of penicillin allergy are frequently reported, and have been proven detrimental to patients. Current guidelines for the assessment of drug allergies recommend that penicillin allergy be evaluated first with prick and intradermal skin tests, and then completed with a graded oral challenge, spread over at least two doses. However, it has been shown that these skin tests, in addition to consuming resources and time, are of limited, or even doubtful validity, given the poor predictive values that have been reported in the modern penicillins era. It now seems unreasonable to continue their use without addressing other, more efficient diagnostic stategies. Several groups have now demonstrated the safety, validity, and efficiency of a direct, two-step amoxicillin oral challenge (starting with 10% of the standard therapeutic dose, followed by 90 % of the dose), without prior skin tests, first for any type of reaction in the pediatric population, then for any non-immediate reaction in the adult population. The objective of this study is to demonstrate the safety, efficiency, and validity of direct, two-step graded oral challenge with amoxicillin for the evaluation of any reported penicillin allergy in the adult population, excluding high-risk patients (documented anaphylaxis to a penicillin in the last 5 years). Skin tests will first be performed according to the protocol currently in use at the CHUL, then consented patients will proceed with the graded oral challenge still according to the protocol currently in use at the CHUL, but regardless of the skin tests results. The results of the two tests will be compared to determine the safety, efficiency and validity of proceeding directly to the graded oral challenge.

This is a single-center prospective single arm study. The purpose of this study is to assess the usefulness of skin test as a diagnostic tool to predict the hypersensitivity to rituximab in Chinese population, evaluate the rate of hypersensitivity reactions (HSRs) after the application of active desensitization therapy in the case of a positive skin test result, and investigate the mechanism of HSRs to rituximab.

Patients labeled as penicillin allergic, rarely have this confirmed and being labeled as "penicillin allergic" is associated with increased health care costs, adverse effects and antibiotic resistance. The investigators will recruit participants from primary care practices labeled as penicillin allergic and offer allergy testing. The aim of this study is to develop a community, outpatient program for evaluation of penicillin allergy.

The objective of this study was to rule out a greater than 10% incidence of hypersensitivity to Vitrase following a single intradermal injection of 3 USP units Vitrase. Less than or equal to a 10% hypersensitivity response was considered acceptable.