A Study of B244 Delivered as a Topical Spray to Assess Safety in Pediatric Subjects With Atopic Dermatitis

This is a Phase 1b, open-label, single arm, multiple site study assessing twice daily B244 application for 28 days in pediatric subjects with mild to moderate atopic dermatitis.

Number of Subjects:

The study will enroll 36 subjects in 3 cohorts of 12 subjects:

* Cohort 1: subjects aged 2 to 5 years. * Cohort 2: subjects aged 6 to 11 years. * Cohort 3, subjects aged 12 to 17 years.

At Screening and Baseline, all subjects must have confirmed diagnosis of atopic dermatitis, as defined by the Hanifin and Rajka criteria, which involves a minimum of 10% but no more than 60% body surface area and a Validated Investigator Global Assessment for Atopic Dermatitis (vIGA-AD) scale of 2 or 3.

The duration of the study will be approximately 7 weeks. Subjects will attend for a Screening visit between Days -21 and -14. If all eligibility criteria and none of the exclusion criteria are met, subjects will be enrolled into the study and will be required to undergo a 14 day washout period (Days-14 to -1). Subjects will attend the study center on Day 1 and the Baseline assessments will be performed before application of the first dose.

On confirmation of continued eligibility the subject and parent or guardian of the subject will be coached on how to apply medication, depending on the affected areas. They will be instructed to apply B244 twice daily (approximately 12 hours apart) for 28 days.

The first dose will be applied in the clinic under the supervision of clinical staff. Details of dose administration will be recorded in the study diary provided. The subjects with their parent or guardian will return to the study center on Days 7, 14, and 21 for completion of study assessments.

There will be a final study visit on Day 28, this will be defined as the end of the study for the subjects. A time window of ±2 day will be permitted for these 4 visits. There will not be a period of confinement in the study center all visits will be outpatient visits. Safety monitoring will include review of TEAEs, vital signs and physical examination. Efficacy will be assessed using EASI, vIGA-AD scale, POEM and ItchMan scores.