A Non-Drug Study Detecting And Quantifying Nocturnal Scratch Behaviors From Wrist Actigraphy Data In Adult Healthy Volunteers And Participants With Atopic Dermatitis (AD)

Inclusion Criteria

• •Volunteers in general good health with no diagnosis of AD or any other dermatologic disorder that interferes with study assessments.
• •For subjects with AD:
• •Chronic AD with onset of symptoms at least 1 year prior to Day 1 and participant meets American Academy of Dermatology (AAD) criteria.
• •Participant meets all of the following disease activity criteria:
• •* For AD subjects with high disease activity (AD-High):
• •* Pruritus over the last 7 days (numerical rating scale 7-Day version \[NRS-7\]) \>= 4 at the Screening and Day 1 visits.
• •* At least one of the following:
• •* Eczema Area and Severity Index (EASI) score \> 7 at the Screening and Day 1 visits; OR
• •* Validated Investigator Global Assessment for AD (vIGA-AD) score \>= 3 at the Screening and Day 1 visits;
• •* For AD subjects with low disease activity (AD-Low):
• •* Pruritus over the last 7 days (NRS-7) \>= 2 at the Screening and Day 1 visits.
• •* Does not meet AD-High criteria as described.
• •* Satisfy at least one of the following:
• •* EASI score \>= 3 at the Screening and Day 1 visits OR
• •* vIGA-AD score \>= 1 at the Screening and Day 1 visits.