Clinical trial Recruiting at 1 site Observational Ages 18 to 80

Analyzing food allergy reactions through antibody levels

Official title: Food-specific Immunoglobulin G4 and Immunoglobulin E Antibody Reactions in a Population With Adverse Reactions to Foodstuffs-related Symptoms

Run by Universidad Politecnica de Madrid · NCT05681975 · Data updated 2026-11-12

This study is testing how certain antibodies in the blood relate to food allergy symptoms in adults who think they might have a food allergy or intolerance.

Quick facts

Study typeObservational
Ages18 Years to 80 Years
SexAll
Enrollment200 (estimated)
SponsorUniversidad Politecnica de Madrid
Academic / other
Locations1 site (Madrid)
StatusRecruiting
StartedOctober 1, 2017
Main results expectedOctober 2027
Study endsDecember 2027
Registry record updatedJanuary 12, 2023
Trial IDNCT05681975 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults over 18 who exhibit symptoms related to adverse reactions to foodstuffs.

Probably not a fit

Patients currently undergoing antibiotic treatment may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to analyze individuals experiencing symptoms related to adverse reactions to foodstuffs. Volunteers over 18 years old, who suspect they have a food allergy or intolerance, will provide a small blood sample for analysis. The study focuses on measuring the levels of food-specific immunoglobulin G4 (IgG4) and immunoglobulin E (IgE) antibodies to better understand their role in food-related symptoms. The findings could help clarify the relationship between these antibodies and food allergies.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of food allergies and lead to better diagnostic methods for patients.

How similar studies have gone: While there have been studies on food allergies, this specific approach focusing on IgG4 and IgE levels in a population with adverse reactions is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

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

Exclusion Criteria:

* Antibiotic treatment

Where it's running

  • Universidad Politécnica de Madrid
    Madrid, Spain
    Recruiting

Study contacts

  • Principal investigator: Lisset Pantoja-Arévalo, MSc — Universidad Politecnica de Madrid
  • Study coordinator: Lisset S Pantoja-Arévalo, MSc
  • Email: l.pantoja@upm.es
  • Phone: +34910677879

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.