Allergy Clinical Trial
Official title:
Prospective Survey of the Repeated Occurrence of Anaphylactic Reactions in Patients With Food Allergies
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.
Status | Recruiting |
Enrollment | 322 |
Est. completion date | February 28, 2029 |
Est. primary completion date | February 28, 2029 |
Accepts healthy volunteers | No |
Gender | All |
Age group | N/A and older |
Eligibility | Inclusion Criteria: - 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 Exclusion Criteria: - if inclusion criteria are fulfilled there are no further exclusion criteria |
Country | Name | City | State |
---|---|---|---|
Germany | Charité - Universitätsmedizin Berlin | Berlin |
Lead Sponsor | Collaborator |
---|---|
Charite University, Berlin, Germany |
Germany,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | 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 | Frequency of allergic reactions among patients with different food allergens 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 different food allergens | 2 years | |
Secondary | The association of food allergy related quality of life, measured via the Food Allergy Quality of Life Questionnaire, with repetitive allergic reactions | An anaphylactic reaction to food can impact quality of life. The investigators want to observe the food allergy related quality of life over the study period and examine whether the existence of repetitive reaction influences quality of life. Food allergy related quality of life is measured via the Food Allergy Quality of Life Questionnaire (FAQLQ). Patients can achieve 1 - 7 points, where a higher score represents a higher impairment of quality of life and 1 point represents no impairment. | 2 years | |
Secondary | The association of eating habits (e.g. frequency of eating out) and the occurrence of repetitive allergic reactions | An anaphylactic reaction to food can influence eating habits and specific eating habits can be related to more frequent accidental allergic reactions. The investigators want to observe whether the eating habits differ between patients with and without recurrent allergic reactions.
The eating habits are captured with a non-validated questionnaire. Patient are requested to answer, whether they follow a specific diet (e.g. vegan, vegetarian, religious diets) and how often they use specific ways of eating out (e.g. in a restaurant or eating at a friends place). The eating habits are captured at every time point of the study (baseline, 3, 6, 12, 24 months). |
2 years | |
Secondary | Use of emergency medication during a repetitive reaction | The prescripton of emergency medications and the instruction about their use enables patients or their relatives to take care of the primary treatment of anaphylactic reactions. The investigators want to compare whether the use of emergency medication during subsequent anaphylactic reactions increases. Patients are requested to provide details about the use of emergency medication for each allergic reaction they report via the study period. | 2 years | |
Secondary | Use of adrenaline as first line treatment | The instruction about adrenaline autoinjectors and their use as first line treatment in case of an allergic reaction increases the frequency of its use. The investigators want to compare whether the use of adrenaline as a first line treatment during subsequent anaphylactic reactions increases. Patients are requested to provide details about the use of adrenaline for each allergic reaction they report via the study period. | 2 years | |
Secondary | The association of dietary counselling and successful allergen avoidance | The investigators hypothesize that dietary counselling enables patients to avoid their allergen effectively and reduces the number of allergic reactions compared to the time before dietary counselling. Patients are requested to provide the number of allergic reactions throughout the two years before inclusion in the study in the baseline questionnaire. This number will be compared with the number of reactions patients report during the study. The study inclusion always takes place in a specialized allergy center, where every patient receives counselling about allergen avoidance. | 2 years |
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 |
NCT04046731 -
Neuromuscular Blocking Agents Utilized During Perioperative Hypersensitivity Evaluation
|
N/A | |
Completed |
NCT04126096 -
Negative Predictive Value and NIC of Beta-Lactam Antibiotics.
|
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
|
||
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 | |
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 |