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Not yet recruitingNCT07811141FabALLUpdated Nov 5, 2026

Observational Study of IgE-Mediated Leguminous Allergies in a Pediatric Population

An observational study in Hypersensitivity, Food and Legumes Allergy, sponsored by University Hospital, Lille. Not yet recruiting at 1 site in France. Open to participants aged 6 Months to 17 Years. Per ClinicalTrials.gov, last updated 2026-11-05.

Sponsored by University Hospital, Lille · Observational

Updated Nov 3, 2026Start date movedPrimary completion moved+1 moreGo to Updates ↓
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
100
Ages
6 Months to 17 Years
Sex
All
01

Study summary

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.

02

Conditions studied

  • Hypersensitivity, Food
  • Legumes Allergy

Keywords

  • food hypersensitivity
  • allergy
  • fabaceae
  • leguminous
  • biobank
03

In context

Food Hypersensitivity

376 studies on the registry are indexed under Food Hypersensitivity; 90 are open to participants now.

This study's planned enrollment of 100 is below the median of 151 across 120 observational studies indexed under Food Hypersensitivity.

Browse Food Hypersensitivity studies →

Lead sponsor

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.

04

Who can participate

Ages eligible
6 Months to 17 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Cohort of patients with the disease (leguminous allergy), between 6 months to 17 years old, with medical follow up in Pneumo-allergy unit - CHU Lille

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.

Inclusion criteria

  • Subjects aged 6 months to 17 years old
  • Medical diagnosis of allergy to one or more leguminous :
  • Clinical reaction following real-life exposure AND positive skin and/or biological sensitization
  • Allergy confirmed by a positive oral food challenge (OFC) in cases of sensitization without a history of clinical reaction
  • Subjects seen in a pediatric pneumo-allergy unit (consultation or hospitalization)

Exclusion criteria

Exclusion Criteria:

  • Isolated IgE-mediated peanut allergy
  • Patients aged 18 years or older
  • Minor patient or legal representant (parental authority) Refusal
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
100 participants (estimated)
Patient registry
No
Biospecimen retention
Samples without dna
06

What researchers measure

Primary outcomes

  1. 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

Secondary outcomes

  1. Describe the age at onset and severity of the first manifestation

    Time frame: Baseline (Inclusion)

  2. Describe quality of life (FAQLQ questionnaires) in children aged 8 years or older

    Food Allergy Quality of Life Questionnaire : several forms tailored to the patient's age or intended for family members: * FAQLQ-PF (Parent Form): for parents of children aged 0 to 12; * FAQLQ-CF (Child Form): for children aged 8 to 12; * FAQLQ-TF (Teenager Form): for adolescents; * FAQLQ-PTF (for parents of adolescents). Each item is rated on a scale of 1 to 7 (Minimum Value = 1 and Maximum Value =7). Depending on the specific FAQLQ instrument used, the number of items varies, resulting in different minimum and maximum total scores : * FAQLQ-CF: Total score ranges from 24 to 204 * FAQLQ-TF: Total score ranges from 29 to 203 * FAQLQ-PF: Total score ranges from 0 to 180 * FAQLQ-PTF: Total score ranges from 0 to 186 Higher scores indicate a worse outcome.

    Time frame: Baseline (Inclusion)

  3. Establish a biobank (blood - plasma samples) to validate future diagnostic tests

    Time frame: Baseline (Inclusion)

  4. Describe the severity of reactions by legume (FASS score)

    Title: Food Allergy Severity Score. Scores range from a minimum of 1 (representing a mild allergic reaction) to a maximum of 5 (representing a very severe allergic reaction). Higher scores indicate a worse outcome.

    Time frame: Baseline (Inclusion) 1 Year from the Inclusion 5 years from the inclusion, or until the age of 18

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

2 registry updates since Sep 25, 2026
Start date
Sep 2026→Nov 2026
Nov 3, 2026
Primary completion
Sep 2034→Nov 2034
Nov 3, 2026
Study completion
Sep 2034→Nov 2034
Nov 3, 2026
Secondary outcomes
2 description edited
What changed in the outcomes
  • DescriptionDescribe quality of life (FAQLQ questionnaires) in children aged 8 years or older: how it is measured was reworded
  • DescriptionDescribe the severity of reactions by legume (FASS score): how it is measured was reworded
Oct 1, 2026
Show all 2 updates
  1. Nov 3, 2026
    Start date Sep 2026→Nov 2026
    Primary completion Sep 2034→Nov 2034
    Study completion Sep 2034→Nov 2034
    + 1 other change: verification date
  2. Oct 1, 2026
    Secondary outcomes 2 description edited
    What changed in the outcomes
    • DescriptionDescribe quality of life (FAQLQ questionnaires) in children aged 8 years or older: how it is measured was reworded
    • DescriptionDescribe the severity of reactions by legume (FASS score): how it is measured was reworded

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07811141
Responsible party
Sponsor
First posted
Sep 9, 2026
Start date
Nov 2026 (estimated)
Primary completion
Nov 2034 (estimated)
Completion
Nov 2034 (estimated)
Last update
Nov 5, 2026

Study contacts

Celine CLAIRET-LESPINASSE
Contact
celine.clairet@chu-lille.fr
+33 3204441145
DRS. Promotion
Contact
drs.promotion@chu-lille.fr
+33 3204441145

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Nov 2026. You cannot join it, but the record below documents what was studied.

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