Home › Peanut Hypersensitivity › NCT02192866

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

Who can join

Ages 1 to 75 · All sexes · Healthy volunteers welcome

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

About the study

Food allergies are now a major problem. These experiments involve getting blood from people with food allergies and from people without food allergies. The blood collected will be used to answer questions and find information about peanut and other food allergies.

Samples will come from:

* People signed up by the investigators at the University of Colorado Denver * University of North Carolina, Massachusetts General Hospital, Children's Hospital of Colorado and the Immune Tolerance Network (Benaroya Research Institute) where people have been treated for peanut allergies * University of North Carolina, Massachusetts General Hospital, National Jewish Health and The Children's Hospital in Denver where people have taken part or will take part in clinically indicated oral food challenges.

Blood and health histories from the University of North Carolina, Massachusetts General Hospital, National Jewish Health, The Children's Hospital and the Immune Tolerance Network will not have personal information linked.

The specific aims of this experiment are:

1. Come up with a lab test that will predict how bad an allergic reaction will be to peanuts. 2. Find out what part of a peanut causes allergic reactions. 3. Come up with preventions that can block peanut allergies. 4. Find the strongest proteins in walnuts.

Sponsor: University of Colorado, Denver · Participants: 270 · Started: 2014-02

Contact the study team

• Stephen Dreskin, MD, PhD · Phone: 303-724-7190

Official record on ClinicalTrials.gov — NCT02192866

Locations in the U.S.

Conditions

• Peanut Hypersensitivity

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.