Active clinical trials for "Hypersensitivity, Immediate"

Allergen-specific immunotherapy (SIT), the administration of gradually increasing quantities of an allergen extract to an allergic patient, is a curative approach which directly treats the underlying allergic disease. GrassMATAMPL has been developed to provide pre-seasonal specific immunotherapy for patients with an allergy to grass pollen (hay fever). The purpose of this double-blind Phase IIb study is to assess the tolerability and immunogenicity of different doses of GrassMATAMPL in volunteers allergic to grasses and rye pollen.

This study investigates whether spores from birch rust fungi (Melampsoridium Betulinum = MB) may be the eliciting allergen in patients with seasonal airway allergy during autumn in North Norway. Patients with suspected allergy to MB are compared with non-allergic controls using data about allergic disease and daily allergic symptoms during autumn. Potential variations in allergic symptoms during season will be compared with spread of MB spores. Sensitation to MB and MB allergy are to be tested with skin prick test (SPT), measurements of spesific immunglobulin E (IgE) in serum, passive basophil activation test (pBAT) and nasal provocation test (NPT)

Whilst validated tools exist to enable inpatient penicillin assessment and de-labelling, limited evidence is available regarding the safety and efficacy in the outpatient clinic. The ability to deliver point-of-care penicillin allergy testing for a large cohort of patients, without skin testing, will improve patient access to testing and utilization of preferred penicillin antibiotics.

The safety and tolerability of tyrosine adsorbed ragweed pollen allergoid with monophosphoryl lipid A (MPL) was planned to be evaluated. For this purpose, a total of 4 injections of either increasing doses of the study drug or placebo (tyrosine) was planned to be administered in 7-day intervals to healthy volunteers.

Skin prick test (SPT) was used for diagnostic test for type 1 hypersensitivity. The efficacy and safety of SPT were proved. The positive control of SPT is histamine. In Thailand, the most common concentration of histamine for SPT is 10 mg/ml. However, in some practice they use other concentration (1, 2.5 mg/ml). This study will find the proper concentration of histamine for positive control use in SPT.

The prevalence of Allergic rhinitis(AR) and asthma was increased world wide. In 1998, ISAAC found that prevalence of AR and asthma inThailand was in moderately high group. Tests for immediated reaction SPT and spIgE, were used for evaluated sensitization of allergen in patient. They guided the investigators for proper management as well as patient education. Clinician will use the result for choose allergen in case that might need immunotherapy. SPT is safe and more economic for patient. Specific IgE has an advantage in patient who cannot withhold antihistamine prior SPT. In United state had a trial of result between SPT and spIgE for cockroach, cat, house dust mite and mold. It showed the correlation between two tests. In Thailand, the investigators haven't had data about it yet.

The goal of this study is to see how the type and size of particles found in air pollution affects inflammation in the nose in people who are skin test positive to at least one allergen. It has been observed that pollution makes allergies worse. It has also been suggested that very small particles may affect allergies more than larger particles.

The primary objective of this study is to assess the safety and tolerability of STMC-103H compared to placebo in allergic subjects who are otherwise healthy.

The purpose of this trial is to study the diagnostic role of skin test in immediate reactions to iodinated radiocontrast media.

Insulin allergy (IA) is still observed even with recombinant human insulin and insulin analogs. Obviously, the usual attitude facing an allergy, i. e. exclusion of the allergen, poses problems in face of IA because insulin is often vital for the patient. IA is thus a complex situation in which a rigorous diagnostic procedure to identify the exact allergen is necessary to propose a therapeutic answer; the purpose of the study is 1/ to validate a diagnostic algorithm for patients presenting with possible allergy. 2/ to investigate immunogenetic profiles of patient with insulin allergy 3/ cellular mechanisms of IA.