Scratch and Sleep Quantification in Atopic Dermatitis

Wrist worn accelerometers, sleep sensors, polysomnography (PSG), and associated data analysis
platforms would provide quantitative and qualitative knowledge regarding the action of
scratching and sleep quantity in a symptomatic atopic dermatitis (AD) population. Our overall
aim is to validate the use of accelerometry technology and digital measures to quantitatively
and qualitatively evaluate scratch and sleep in AD patients in a home environment.

Accelerometry devices appear similar to a wristwatch. The subject will be asked to wear an
accelerometry device on each wrist during the study. The accelerometry device provides
continuous measures of wrist activity and will be used to quantify nocturnal scratching and
sleep behaviors to be compared to videography (annotated for scratch), sleep sensor, PSG and
traditional patient-reported outcome (PRO) and Quality of Life (QoL) measures [Peak Pruritus
Numerical Scale, Severity of Pruritus Scale (SPS), Patient Global Impression of Severity
(PGIS), Medical Outcomes Study (MOS) Sleep Scale, Itch and Sleep Diary, Patient-Oriented
Eczema Measure (POE), Patient-Reported Outcomes Measurement Information System (PROMIS)-pain
interference, PROMIS- anxiety, Dermatology Life Quality Index (DLQI), Family Dermatology Life
Quality Index (FDLQI), Children's Dermatology Life Quality Index (CDLQI), Device and Device
Comfort Questionnaire] in patients with AD in a clinic and home setting in a well-controlled
clinical study.

Inclusion Criteria:

- Male or female subjects aged > 12 to 75 years of age at the screening visit.

- Written informed consent from participant (and parent/guardian for those subjects
under 18 years of age) and able to understand and cooperate with study instructions,
visits and procedures.

- Native English speakers or fluent in English (per investigator's judgment)

- Has a clinical diagnosis of AD according to the criteria of Hanifin and Rajka
(concomitant atopic dermatitis treatments are permitted on study).

- Has AD involvement ≥ 5% Body Surface Area (BSA), excluding the scalp.

- Has an Investigator's Static Global Assessment (ISGA) score of Mild (2), Moderate (3),
or Severe (4) at the Screening Visit

- Have a minimum Peak Pruritus Numerical Rating Score (NRS) of 3 and/or Severity of
Pruritus Scale (SPS) score of 1.

- Willingness to abstain from alcohol and illicit drugs on the day of the second
overnight in-clinic study visit.

Exclusion Criteria:

- Has any clinically significant medical disorder, condition, disease or clinically
significant physical examination finding at screening that in the Investigator's or
designee's opinion may interfere with study objectives (e.g., expose subject to
unacceptable risk by study participation, confound evaluation, result in adverse
events, or interfere with subject's ability to complete the study).

- Has documented sleep apnea and/or other sleep related disorders (e.g., narcolepsy,
restless legs syndrome, circadian rhythm disorder) or has a Body Mass Index (BMI) >35.

- Subject scores <15 on the Asthma Control Test (ACT; Appendix C), indicating poorly
controlled asthma.

- Current shift worker or travel across more than two time zones in the past 2 weeks.
(NOTE: for this travel criterion, subjects may enroll in the study if they delay
enrollment until two weeks has lapsed since their travel).

- If the patient has significant eczema at the location where the bilateral wrist
devices will need to be worn, making the devices intolerable for the patient, and in
the opinion of the patient or investigator would likely lead to noncompliance.

- Has a significant active systemic or localized infection, including actively infected
AD.

- If subject has a history of angioedema or anaphylaxis, has not had any anaphylactic
reactions within the past 6 months.

- Has recently (within 30 days of the Screening Visit) participated in or is currently
involved in another drug or device research study.

- Has any planned surgical or medical procedure that would overlap with study
participation.

- Is a female who is breastfeeding or pregnant.

- History of regular alcohol consumption exceeding 7 drinks/week for females or 14
drinks/week for males (1 drink = 5 ounces (150 mL) wine, 12 ounces (360 mL) of beer,
or 1.5 ounces (45 mL) of hard liquor) within 6 months of screening as disclosed by
subject during evaluation