Immune causes of FPIES

Immune Basis of FPIES

NIH-funded research Northwestern University · NIH-11128362

This project tests whether a low-dose, multi-day food challenge can make diagnosis easier and safer for infants and children with FPIES compared with the standard hospital oral food challenge.

Quick facts

Grant typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionNorthwestern University NIH-funded
Lab location1 site (Chicago, United States)
Project IDNIH-11128362 on NIH RePORTER

What this research studies

You may be randomly assigned to the usual hospital oral food challenge or to a new low-dose approach that starts with a 300 mg protein challenge in the hospital and continues with daily 300 mg doses at home for seven days while symptoms are tracked. The study uses a 1:2 randomization so more participants try the low-dose multi-day protocol. Researchers will collect symptom data and blood samples to look for immune markers that explain why FPIES happens. The goal is to find less traumatic diagnostic methods and better biological signs of the condition.

Who could benefit from this research

Good fit: Infants and children with a history of FPIES or those scheduled for an oral food challenge to determine if FPIES is still active are the ideal candidates.

Not a fit: People without FPIES, those with IgE-mediated food allergy, or those unable to travel to the study site or carry out safe home dosing are unlikely to benefit from this protocol.

Why it matters

Potential benefit: If successful, this could reduce the need for high-risk hospital challenges, make testing less traumatic, and point toward blood tests that help diagnose FPIES.

How similar studies have performed: Single-day hospital oral food challenges are the established standard, while low-dose multi-day home challenge approaches are relatively new and have limited prior testing.

Where this research is happening

Chicago, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 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.