What are EASI severity categories?

EASI 0: clear. 0.1-1: almost clear. 1.1-7: mild. 7.1-21: moderate. 21.1-50: severe. 50.1-72: very severe. EASI >=16 is often used as moderate-to-severe threshold for biologic eligibility.

What is EASI-75 as a biologic endpoint?

EASI-75 (75% reduction from baseline) is the primary endpoint in most atopic dermatitis trials. EASI-90 is used as a secondary endpoint. Dupilumab achieves EASI-75 in ~80% and EASI-90 in ~50% at week 16.

How does EASI differ from SCORAD?

EASI measures four signs (erythema, induration/papulation, excoriation, lichenification) and area for 4 body regions (no patient-reported symptoms). SCORAD also includes dryness and patient-reported pruritus/sleep.

EASI Eczema Area Severity Index

Calculate EASI for atopic dermatitis: area (0-6) x intensity (0-3 for each of 4 signs) x body region weight. Severe EASI >=21; EASI 50/75/90/100 are standard trial endpoints.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.

How to Use

Enter the values for the scenario you are assessing. Calculate EASI for atopic dermatitis: area (0-6) x intensity (0-3 for each of 4 signs) x body region weight. Severe EASI >=21; EASI 50/75/90/100 are standard trial endpoints. Use the easi score result to inform your calculation.

Related Calculators

SCORAD Score

Hyper-niche Medical