Active clinical trials for "Hypersensitivity"

The purpose of this research is to gather information on the safety and efficacy of using a prebiotic as an adjunctive therapy to peanut oral immunotherapy. The prebiotic is not an FDA approved drug or medication rather a fiber found at local grocery stores.

The goal of this research study is to determine whether hormonal therapies used early in the course of prostate cancer could increase the amount of Prostate-Specific Membrane Antigen (PSMA) as detected by PET/CT scans for participants with recurrent prostate cancer. This study will measure PSMA levels using standard PET/CT scans and participants will receive standard-of-care androgen receptor antagonist monotherapy. The names of the treatment interventions involved in this study are: Androgen receptor antagonist monotherapy. PSMA PET/CT scan It is expected that about 15 people will take part in this research study. Participation in this research study is expected to last about 4 weeks.

This study will assess the effect of taking vitamin C on allergy skin test.

The BAT Impact study is a prospective multicentre study in the UK using a biomarker-led study design to compare the incidence of adverse events (defined as allergic reactions during oral food challenges) in a randomized-controlled trial. Patients will either follow the standard-of-care (i.e. an oral food challenge in case of equivocal SPT/sIgE) or follow a basophil activation test (BAT)/mast cell activation test (MAT)-based strategy, i.e. patients with a positive BAT or MAT are dispensed of an oral food challenge (OFC) and patients with a negative BAT/MAT undergo an OFC.

This study is a single center, prospective, randomized, open-label study aimed at determining the most effective means of preventing hypersensitivity reactions in gynecologic oncology patients receiving paclitaxel infusions. The study will therefore provide clinicians with the best ways of preventing paclitaxel hypersensitivity reactions in their patients during treatment. Subjects will be randomized using the block randomization method into one of these three commonly used treatment methods:(1) Conventional method: oral dexamethasone (20 mg), taking 12 hours and 6 hours prior to paclitaxel infusion and intravenous administration of histamine-1 (H1), and a histamine-2 (H2)receptor antagonists administered 30 minutes prior to paclitaxel infusion. (2) Short-course method: intravenous dexamethasone (20 mg), administered concurrently with H1 and H2 antagonists, 30 minutes prior to paclitaxel infusion. (3) Combined method: oral dexamethasone (20 mg), taking 12 hours prior to treatment in addition to intravenous dexamethasone (20 mg), H1 and H2 receptor antagonists administered 30 minutes prior to paclitaxel infusion. The one-way analysis of variance (ANOVA) would be used to determine if there is any significant difference between the different strategies that are used to pre-medicate patients prior to paclitaxel infusion. P-values of less than 0.05 will be considered statistically significant.

This is a Phase 1b/2, randomized, double-blind, multi-center study to evaluate the safety, tolerability, and preliminary clinical efficacy of STMC-103H in neonates and infants at risk for developing allergic disease (Type 1 hypersensitivity). Subjects will be enrolled in a three-part sequential approach. Participants in the safety-run portion of the study (Part A1: 1 year to <6 years of age and A2: 1 month to <12 months of age) will receive 28 days of treatment with STMC-103H or placebo, followed by 28 days of follow-up. A Data and Safety Monitoring Committee (DSMC) will review safety data after all patients in each part complete 28 days of therapy prior to enrolling the next part. After A2, Part B will enroll 224 patients for 336 days of treatment with STMC-103H or placebo, followed by 336 days of follow-up. Stool, blood, and optional samples will be collected in Parts A2 and part B. Primary safety endpoints are frequency, type and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs), as well as findings on physical exams, vitals, and safety laboratories. The primary efficacy endpoint is incidence of physician-diagnosed atopic dermatitis at day 336.

This is an open label observational single center study of clinical food oral immunotherapy outcomes with biomarker samples and participant and/or caregiver-completed questionnaires in participants between 6 months and 65 years of age with IgE-mediated peanut allergy undergoing food oral immunotherapy.

The purpose of this study is to assess AR101's safety, tolerability and efficacy over an extended dosing period.

Early and regular ingestion of the common allergens, peanut and egg has been shown to be an effective allergy prevention strategy. It is not clear whether this is also true of tree nut allergy. Current practice in many Australian allergy clinics for children with peanut allergy (high risk of tree nut allergy), is to advise families to introduce each individual tree nut into their child's diet via a cautious home introduction protocol without prior allergy testing (screening). The safety and effectiveness of an early and regular ingestion strategy for the prevention of tree nut allergy has not been formally evaluated and it is known that around a third of children with peanut allergy develop one or more other nut allergies. This trial is a 2-armed, open-label, randomized, controlled trial (RCT) to assess the safety and efficacy of a supervised hospital based multi-tree nut (almond, cashew, hazelnut and walnut) oral food challenge (OFC) + then home introduction of the remaining tree nuts versus standard care (home introduction of all 8 tree nuts) in infants with peanut allergy to reduce the risk of developing tree nut allergy.

A investigational study to establish: A validated risk stratification tool for patients labeled Penicillin allergic. Facilitate provocation test for delabeling of Penicillin allergy outside an allergologic clinic Examine the gut microbiome of penicillin allergic patients