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Immunoglobulin G4 and Immunoglobulin E Antibodies in a Population With Adverse Reactions to Foodstuffs-related Symptoms

Study Purpose

The aim of this study is to analyze a population with symptoms associated with adverse reactions to foodstuffs (ARFS). To determine the levels of food-specific immunoglobulin G4 (IgG4) and immunoglobulin E (IgE) antibody reactions (AbR).

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Observational [Patient Registry]
Eligible Ages 18 Years - 80 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

- Adults (>18 years of age) - To present symptoms related to adverse reactions to foodstuffs (ARFS)

Exclusion Criteria:

- Antibiotic treatment

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Universidad Politecnica de Madrid
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Lisset Pantoja-Arévalo, MSc
Principal Investigator Affiliation Universidad Politécnica de Madrid.
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Recruiting
Countries Spain

The disease, disorder, syndrome, illness, or injury that is being studied.

Immunoglobulin E-Mediated Food Allergy, Immunoglobulin G4-Related Disease, Symptoms and Signs, Adverse Reaction to Food
Additional Details

Volunteers with symptoms related with adverse reactions to foodstuffs (ARFS) and suspicion of having a food allergy or a food intolerance are enrolled in this study. A 50μl of capillary whole blood is analyzed and the levels of food-specific immunoglobulin G4 (IgG4) or immunoglobulin E (IgE) antibody reactions (AbR) are determined.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

International Sites

Universidad Politécnica de Madrid, Madrid, Spain




Universidad Politécnica de Madrid

Madrid, , 28040

Site Contact

Lisset Pantoja-Arévalo, MSc


+34 910677879 #77879

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