Study Overview: This study looks at children with moderate to severe atopic dermatitis (AD), which is a skin condition causing red, itchy patches. It examines how well these children's AD is controlled when regular creams or ointments aren't enough or aren't safe to use. The study also watches how AD and other related conditions change over time.

Key Points to Consider:

• The study will last for 10 years (120 months).
• Children already on special treatments like phototherapy or who might need such treatments can join.
• Participants should not be in any other clinical trial that changes their care plan.

Study Goals: The study aims to find out more about how severe AD affects children and what treatments work best in real life. It also seeks to understand the challenges faced by these children and how often they change or stop treatments.

If you think your child fits the criteria and you are interested, please consider the length and commitment of the study before deciding. Always consult with your child's doctor for more personalized advice.