NCT06192914

Brief Summary

The goal of this observational study is to learn about repetitive anaphylactic reactions in food allergic patients and to compare the frequency of repetitive reactions between different elicitors in food allergic patients. The main question it aims to answer are: • Is there an elicitor specific difference in the occurrence of anaphylactic reactions once the elicitor has been identified and the patient received counselling about its avoidance? Participants will answer questionnaires via a link they will receive via e-mail at baseline and 3, 6, 12 and 24 months after inclusion in the study.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
322

participants targeted

Target at P75+ for all trials

Timeline
34mo left

Started Mar 2022

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress60%
Mar 2022Feb 2029

Study Start

First participant enrolled

March 1, 2022

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

December 11, 2023

Completed
25 days until next milestone

First Posted

Study publicly available on registry

January 5, 2024

Completed
5.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 28, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2029

Last Updated

February 13, 2025

Status Verified

February 1, 2025

Enrollment Period

7 years

First QC Date

December 11, 2023

Last Update Submit

February 11, 2025

Conditions

Keywords

Food AllergyRepetitive ReactionsQuality of Life

Outcome Measures

Primary Outcomes (1)

  • Frequency of allergic reactions in tree nut and peanut allergic patients within the observation period of the study

    The aim is to identify whether the frequency of allergic reactions after the identification of the elicitor of the initial allergic reaction differs between peanuts and tree nuts

    2 years

Secondary Outcomes (6)

  • Frequency of allergic reactions among patients with different food allergens within the observation period of the study

    2 years

  • The association of food allergy related quality of life, measured via the Food Allergy Quality of Life Questionnaire, with repetitive allergic reactions

    2 years

  • The association of eating habits (e.g. frequency of eating out) and the occurrence of repetitive allergic reactions

    2 years

  • Use of emergency medication during a repetitive reaction

    2 years

  • Use of adrenaline as first line treatment

    2 years

  • +1 more secondary outcomes

Study Arms (1)

Food Anaphylaxis Patients

Patients with anaphylaxis to legumes, tree nuts, seeds, cereals and pseudocereals within the last 12 months

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population consists of patients (age 18 years or older) or their parents (patients age 0-17 years). Eligible patients have suffered at least one anaphylactic reaction to peanuts, other legumes, tree nuts, seeds (e.g. sesame seed, sunflower seed), cereals (e.g. wheat, oat) or pseudocereals (e.g. quinoa) within 12 months prior to presentation in a specialised food allergy center that is participating in the European Anaphylaxis Registry and in addition the EPAP follow-up project. If the patient or their parents agree to participate in the European Anaphylaxis Registry and fulfill the other inclusion criteria, they can also participate in the follow up study. We aim to include 322 patients.

You may qualify if:

  • anaphylactic reaction to peanuts, other legumes, tree nuts, seeds (e.g. sesame seed, sunflower seed), cereals (e.g. wheat, oat) or pseudocereals (e.g. quinoa)
  • participation in the European Anaphylaxis Registry (Clinical Trials Identifier: NCT05210543)
  • possibility and consent to receive links to the follow-up electronic surveys via e-mail and fill out the questionnaires electronically

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Charité - Universitätsmedizin Berlin

Berlin, State of Berlin, 10117, Germany

RECRUITING

MeSH Terms

Conditions

Food HypersensitivityPeanut HypersensitivityHypersensitivityAnaphylaxis

Condition Hierarchy (Ancestors)

Hypersensitivity, ImmediateImmune System DiseasesNut and Peanut Hypersensitivity

Study Officials

  • Margitta Worm, MD

    Allergy and Immunology, Department of Dermatology, Venerology and Allergy, Charité Universitätsmedizin Berlin

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

December 11, 2023

First Posted

January 5, 2024

Study Start

March 1, 2022

Primary Completion (Estimated)

February 28, 2029

Study Completion (Estimated)

February 28, 2029

Last Updated

February 13, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations