Longitudinal Follow-up Study for Food Allergies
Longitudinal Follow-up Study for Food Allergies
The purpose of this study is to evaluate the clinical usefulness of assessing specific human
 allergy antibodies and other immunologic parameters associated with the diagnosis, evolution,
 and management of allergic disease.
The purpose of this study is to strengthen our ability to understand the long-term effects of
 food immunotherapy on the immune system and how it may induce tolerance to foods that
 participants were once allergic to. Investigators hope to determine tools and immunologic
 parameters that can help predict sustained desensitization and tolerance to food allergens
 following food immunotherapy. By evaluating the in-depth characteristics of allergy antibody
 populations and other immunologic parameters and comparing them to clinical disease, the
 investigators may uncover a more sound way to diagnose, follow and treat food allergic
 disease over time. Investigators will follow up with participants who underwent immunotherapy
 to food allergens as volunteers in clinical trials at the Sean N. Parker Center and assess
 whether they experience sustained desensitization to these foods in the long-term.
 Investigators will investigate the properties of the participants' immune cells and how they
 are affected over time by the ingestion of these food allergens. Investigators will follow
 the significance of different dosing regimens in terms of achieving tolerance. Differences in
 immune cell characteristics and other biological parameters may help predict the nature of a
 participant's tolerance to the food allergens and may help in the development of tools to
 determine permanent tolerance.
Inclusion Criteria:

 -  Patients ages 6 months through 70 years who have previously undergone a food
 immunotherapy protocol only at our center.

 Exclusion Criteria:

 -  None. However, if a participant becomes pregnant, their clinic visit may be postponed
 until after delivery and/or lactation period. These subject can postpone visits for
 one year and choose to skip visits during pregnancy and another year after (if
 breastfeeding).