Immune Tolerance Network   

A clinical research consortium sponsored by NIAID

A clinical research study of peanut allergy in young children

Welcome to the IMPACT study

IMPACT is no longer enrolling participants.

For information about other allergy clinical trials being conducted by the Immune Tolerance Network, please visit

Am I Eligible?

Find out if you qualify for this trial.

Study Locations

Find the IMPACT clinical research centers near you.