Prospective, monocentric, observational study with standard care follow-up during 5 years or until the patient reaches the age of 18. The aim of this study is to prospectively and comprehensively assess the characteristics of patients aged 6 months to 17 years with leguminous allergy (excluding peanut) and their reactions to leguminous, including both medical history and prospective follow-up for 5 years from inclusion, or until the age of 18. The study aims to improve the understanding of these allergies, provide epidemiological data, and optimize diagnostic and clinical management. A biobank will also be established, with plasma (one whole blood sample collected at the inclusion) in order to validate future diagnostic tests.
Study Type
OBSERVATIONAL
Enrollment
100
CHU Lille
Lille, France
Prospectively study, among the leguminous, the type of leguminous (excluding peanut) responsible for the allergy.
The primary endpoint will be the number of allergy diagnoses for each type of leguminous (excluding peanut), among : * Green peas * Split peas (dried green peas) * Yellow or blond dried peas * Chickpeas * Green, red, or blond lentils * Green, Kidney, White or Mung beans * Soybean * Lupin * Fenugreek * Fava bean (broad bean) * Beluga lentils * Black-eyed peas (cowpeas), adzuki beans,and urad beans * Alfalfa
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Describe the age at onset and severity of the first manifestation
Time frame: Baseline (Inclusion)
Describe quality of life (FAQLQ questionnaires) in children aged 8 years or older
Time frame: Baseline (Inclusion)
Establish a biobank (blood - plasma samples) to validate future diagnostic tests
Time frame: Baseline (Inclusion)
Describe the severity of reactions by legume (FASS score)
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Describe the frequency of anaphylaxis by legume (according to the WAO definition)
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Describe the frequency of severe anaphylaxis by legume (FASS-5 Grades 4 and 5)
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Describe associations between allergies to different leguminous.
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Describe allergic comorbidities (asthma, rhinitis, atopic dermatitis, and pollinosis)
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Describe associated food allergies, including peanut and other foods
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Describe allergy management strategies: targeted avoidance, broad avoidance, emergency kit with an adrenaline auto-injector, and school-based management (Individualized Healthcare Plan)
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Assess parents' knowledge of the different leguminous
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
Prospectively assess allergic reactions in real-life settings: number of reactions, severity, type of food (prepackaged ready-made meal or homemade meal), labeling, quantity consumed, location of occurrence, and management
Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18
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