Track how new skin treatments work in real-world patient care

The BioDay Registry is a long-term information collection study that follows patients with atopic dermatitis who are receiving new systemic treatments—including biologics and JAK inhibitors. Instead of testing a new drug, this study gathers real-world data from many patients and clinics to see how well these newer medications actually work and how safe they are when used in daily medical practice. The registry also tracks how these treatments affect related allergic conditions like food allergies and asthma.

Doctors need better information about how new systemic treatments perform when used in real patients and real clinics—not just in controlled research settings. This registry helps fill that gap by collecting ongoing safety and effectiveness data across many hospitals and practices.