Clinical trial Recruiting at 1 site Observational Ages 1 Year to 75

Collecting blood samples to study food allergies

Official title: Blood Samples for the Study of Peanut, Tree Nut and Other Food Allergies

Run by University of Colorado, Denver · NCT02192866 · Data updated 2026-11-12

This study is collecting blood samples from people with food allergies and healthy individuals to learn more about how food allergies work.

Quick facts

Study typeObservational
Ages1 Year to 75 Years
SexAll
Enrollment270 (estimated)
SponsorUniversity of Colorado, Denver
Academic / other
Drugs / interventionsomalizumab, ImmunoTherapy
Locations1 site (Denver, Colorado)
StatusRecruiting
StartedFebruary 2014
Main results expectedDecember 2030
Study endsDecember 2030
Registry record updatedDecember 19, 2022
Trial IDNCT02192866 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals aged 1-75 with a history of peanut or tree nut allergies, or those undergoing oral food challenges.

Probably not a fit

Patients without food allergies or those outside the specified age range 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 collect blood samples from individuals with peanut, tree nut, and other food allergies, as well as from healthy controls. The samples will be used to investigate the underlying mechanisms of food allergies and to enhance understanding of peanut and other allergens. Blood will be drawn and processed at various collaborating institutions, including the University of Colorado Denver and Massachusetts General Hospital. The study will also utilize de-identified serum and plasma from other sources to support its research objectives.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of food allergies, potentially benefiting patients through better diagnostic and treatment options.

How similar studies have gone: Other studies have shown success in using blood samples to investigate food allergies, making this approach both relevant and promising.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

This protocol is to draw blood for a variety of related studies of food allergy. For this reason, we will list each group of subjects and the inclusion criteria for that group.

1. De-identified sera or plasma from patients who have undergone Oral ImmunoTherapy (OIT) for peanut allergy. These samples already exist.

   * Inclusion criteria:

     1. patients have been enrolled in a controlled trial of OIT for peanuts, and had at least one oral challenge.
     2. Age 1-75.
2. De-identified samples from patients who are undergoing clinically indicated food challenges for peanut allergy.

   * Inclusion criteria:

     1. concern regarding possible allergy to peanuts,
     2. age 1-75,
     3. plan to undergo a clinically indicated challenge with peanuts.
3. Patients with peanut allergy.

   * Inclusion criteria:

     1. excellent history of a systemic reaction to peanuts,
     2. age 6-75.
4. Patients with other food allergies (especially tree nuts).

   * Inclusion criteria:

     1. excellent history of a systemic reaction to tree nuts or other foods,
     2. age 6-75.
5. Normal controls.

   * Inclusion criteria:

     1. no known food allergies,
     2. recent ingestion of peanuts without difficulty, and
     3. age 6-75.

Exclusion Criteria:

1. Any known significant medical or psychiatric diagnosis
2. Use of an investigational drug within 30 days
3. Use of omalizumab (anti-IgE; Xolair) within 6 months

Where it's running

  • University of Colorado School of Medicine
    Denver, Colorado, United States
    Recruiting

Study contacts

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.