An observational study in Peanut and Tree Nut Allergy, sponsored by University Hospital, Lille. Completed at 1 site in France. Open to participants aged Up to 18 Years. Per ClinicalTrials.gov, last updated 2025-12-26.
Sponsored by University Hospital, Lille · Observational
Food allergy is an immune reaction, triggered by food protein allergens, of varying severity, from mild local reaction to life threatening anaphylaxis and fatalities.
Peanut is a plant from the botanical family of the Fabaceae, more commonly known as legumes. The prevalence of peanut and tree nut allergy is increasing. In France (ELFE cohort), it is estimated to 0.93%. The tree nuts include mainly almond, hazelnut, pistachio, cashew nut, walnut, pecan nut and Brazil nut. Allergy's prevalence is estimated to 0.54% in children up to 5.5 years. Peanut allergy is a main cause of anaphylaxis and deaths due to food allergy.
Recurrence of food allergy is a main concern. The risk has been estimated to 10% per year for peanut.
In France, Data in real-life on the rate of recurrence of allergic reactions and anaphylaxis to peanut/tree-nut as well as risk factors, are lacking.
The objective of this study is to assess the frequency of allergic reaction to peanut and tree-nuts, to describe the reactions' characteristics and risk factors.
166 studies on the registry are indexed under Peanut Hypersensitivity; 27 are open to participants now.
This study's enrollment of 147 is below the median of 220 across 30 observational studies indexed under Peanut Hypersensitivity.
Browse Peanut Hypersensitivity studies →University Hospital, Lille is the lead sponsor of 631 studies on the registry; 142 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients followed in the Pediatric Allergy and Pulmonology Unit, CHU Lille, aged 0-18 years with peanut and/or tree nut allergy
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Patients followed in the Pediatric Allergy and Pulmonology Unit, CHU Lille, aged 0-18 years with peanut and/or tree nut allergy
the number of episode of allergic reactions in real life
Time frame: At 1 year
the severity of the allergic reactions according to a validated scale (FASS scale)
Time frame: At 1 year
interview for the characteristics of the allergic reactions
the characteristics of the reactions: symptoms, triggering food and quantity, location, emergency kit available, treatment administered, evolution (hospitalization or emergency room)
Time frame: At 1 year
interview to defined the risks factor associated
risk factors for reaction: * Other known allergies * Asthma * Atopic dermatitis * Allergic rhinoconjunctivitis * Patient characteristics: sex, age
Time frame: At 1 year
This study is completed, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.