Allergy Clinical Trial - Impact of Age on the Prevalence of Allergic

Status Completed

Clinical Trial Summary

Worldwide, respiratory diseases have a significant impact on morbidity and mortality of individuals.Tobacco, lifestyle and certain allergens such as dust mites play an important role in the prevalence and morbidity of these diseases. Scientific literature indicates that sensitization to allergens and respiratory diseases (asthma, rhinitis, chronic obstructive pulmonary disease) are closely linked. Moreover, smoking has an effect on allergen sensitivity.

To make a diagnosis of allergic sensitization, skin tests are performed in the patient. One of the methods used is the technique of "prick test". In practice, a drop of purified allergen extract is placed on the patient's skin (arms or back). A little dosis of the product is then injected in the epidermis. If fifteen minutes later, there is an edematous reaction, its diameter is measured in millimeters. From 4 mm, it is considered that the patient is sensitized to the tested foods or allergens.This technique is painless and convenient to patients of all ages, including newborns or conversely very aged patients.

This is a retrospective study based on the encoding and statistical analysis of data collected in patients followed within the Immuno-Allergology Service of the CHU Brugmann Hospital, who received an allergy assessment between 01/01/2015 and 31/12/2015. The allergens tested include: dermatophagoides pteronyssinus (DEPT), dermatophagoides farinae (DPF), blomia, cat, dog, cockroach, orchardgrass, timothy grass, alder, hazel,birch, olive tree, cypress, ash, latex, aspergillus, alternaria, cladosporium, peanut, hazel.

At least 1400 files will be analyzed.

Patients will be distributed in six age groups.The results of the allergen skin tests will be encoded as the edema diameter. The allergenicity score (mean of the skin reactivities for each allergen) will be compared between each age groups. The impact of tabagism, gender, BMI and residential area on the allergic reactivity will also be assessed in the overall population and within each age group.

The main objective is to evaluate the effect of age on the skin test positivity. The secondary objective is to highlight the environmental factors that have an impact on allergic diseases.

Clinical Trial Description

n/a

Study Design

Observational Model: Case-Only, Time Perspective: Retrospective

Related Conditions & MeSH terms

Allergy

Clinical Trial Details

NCT number	NCT02730520
Study type	Observational
Source	Brugmann University Hospital
Contact
Status	Completed
Phase	N/A
Start date	May 2016
Completion date	September 2016

View Details

See also
Status	Clinical Trial	Phase
Terminated	`NCT02032056` - Effect of Probiotics in Reducing Infections and Allergies in Young Children During the Complementary Feeding Period	N/A
Completed	`NCT01842711` - Cumulative Irritation Patch Test	N/A
Completed	`NCT01633840` - New Validated Recipes for Double-blind Placebo-controlled Low Dose Food Challenges	N/A
Completed	`NCT00997971` - Growth, Tolerance in Healthy Infants Fed a Partially Hydrolyzed Rice Protein	Phase 3
Completed	`NCT00554983` - Efficacy and Safety From a Recombinant Folding Variant of Bet v 1	Phase 3
Completed	`NCT00331929` - Respiratory Health Study of Children in Kiryat Tivon	N/A
Completed	`NCT00220753` - Air Cleaners for Children and Adolescents With Asthma and Dog Allergy	N/A
Completed	`NCT00232518` - Randomised Controlled Clinical Trials of the Effect of Therapeutic Hookworm Infection in Allergic Rhinoconjunctivitis	N/A
Completed	`NCT04126096` - Negative Predictive Value and NIC of Beta-Lactam Antibiotics.	N/A
Completed	`NCT04046731` - Neuromuscular Blocking Agents Utilized During Perioperative Hypersensitivity Evaluation	N/A
Completed	`NCT04004351` - Treatment Modalities in Children and Adolescents Suffering From HDM-induced Allergic Rhinitis and/or Asthma
Not yet recruiting	`NCT05997784` - Study of Indoor Air Pollutants and Their Impact in Childhood Health and Wellbeing
Completed	`NCT04418999` - Safety and Efficacy of Intracanalicular Dexamethasone Compared to Loteprednol Etabonate in Patients With Keratoconus	Early Phase 1
Completed	`NCT04186949` - Early Origins of Allergy and Asthma
Completed	`NCT02127801` - Single Ascending-dose Study of the Efficacy, Safety, Tolerability, and Pharmacokinetics of REGN1908-1909 in Allergic, Adult Participants	Phase 1
Enrolling by invitation	`NCT05011071` - The Alberta BLOOM Premature Child Study
Not yet recruiting	`NCT06330974` - Allergy, Asthma, and Atopic Eczema in Finland
Completed	`NCT02596321` - A Study Investigating the Immunologic Effects and Safety of 60-day Treatment of the ALK HDM Tablets in Adult Subjects With HDM-Induced Allergic Rhinitis and/or Atopic Asthma	Phase 3
Terminated	`NCT02601690` - Observational Analysis of T Cell Responses to SPIREs for Multiple Allergens in Subjects With Allergy in North America
Completed	`NCT02306473` - The Leaky Lung Test	Early Phase 1

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Impact of Age on the Prevalence of Allergic Sensitization

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms