View clinical trials related to SYSTEMIC REACTION.
Filter by:This study is a prospective, randomized clinical trial. During this study, participants will be randomly assigned to receive quadrivalent inactivated influenza vaccine (IIV4) and mRNA COVID-19 vaccine either simultaneously or sequentially, 7-14 days apart. Persons in the simultaneous group will receive mRNA COVID-19 and IIV4 at Visit 1 (Day 1) and a saline placebo injection at Visit 2. Persons in the sequential group will receive mRNA COVID-19 vaccine and a saline placebo at Visit 1 (Day 1) and IIV4 injection at Visit 2. For participants receiving their primary dose series, a second dose of mRNA COVID-19 vaccine will be administered either 3 to 8 weeks or 4 to 8 weeks following the first dose, depending upon the mRNA COVID-19 vaccine provided. For those receiving a booster dose of mRNA COVID-19 only a single mRNA COVID-19 will be received in this study. Solicited symptoms of reactogenicity and adverse events will be assessed on vaccination day and daily during the 7 days following each Vaccination Visit using either electronic or paper symptoms diaries, depending on study participant preference. Quality of life data will be collected using electronic or paper diaries on day of Vaccination Visit 1 and daily during the 7 days following the visit. Serious adverse events and adverse events of special interest will be collected throughout the duration of the study. Participants are followed through Day 121. Serum samples from participants will be collected for determination of SARS-CoV-2 seropositivity at baseline. Serum samples will be taken throughout the study to determine IIV4 and COVID-19 vaccine immunogenicity and for potential future studies.
Allergy skin tests and allergen immunotherapy are common procedures for both the diagnosis and treatment of atopic diseases. Allergen immunotherapy has proved to be effective in reducing the symptoms of allergic rhinitis and asthma1-2. Despite its clinical benefit, there is risk of systemic reactions associated with these procedures. The systemic reaction rate to skin testing for aeroallergens is significant lower than the rate of reactions to immunotherapy, but it is not negligible. Lin et al reported only 2 patients who had systemic allergic reactions to skin testing for respiratory allergies in 10,400 patients tested.3 They determined the overall risk of inducing anaphylactic reactions by skin testing to be less than 0.02% and other studies have produced similar results.4-5 The rate of systemic reactions to skin testing is likely underscored. Thompson et. al reported a systemic reaction rate of 6% of patients receiving skin testing.6 It is important to recognize the risk of systemic reactions seeing skin testing is commonly done. It is also imperative to recognize the treatments for these reactions to prevent progression. Hypothesis The systemic reaction rate to allergen immunotherapy and skin testing to aeroallergens is higher than previously reported. Biphasic anaphylactic reactions rarely occur with allergen immunotherapy and skin testing.