A Study to Evaluate the Safety, Tolerability, Drug Levels, and Drug Effects of BMS-986326 in Participants With Atopic Dermatitis

Inclusion Criteria: * Must have diagnosis of atopic dermatitis (AD) at least 12 months prior to screening * Documented history of inadequate response to treatment with topical medication for at least 4 weeks, unless topical treatments are otherwise medically inadvisable, or has required systemic therapy for control of disease * All the following must be present to confirm moderate-to-severe AD * Eczema Area and Severity Index score ≥ 12 (at Screening and Day 1) * Body Surface Area ≥ 10% (at Screening and Day 1) * Validated Investigator Global Assessment for Atopic Dermatitis ≥ 3 (at Screening and Day 1) * Peak Pruritus Numerical Rating Scale ≥ 4 (at Screening) Exclusion Criteria: * Evidence of an active and/or concurrent inflammatory skin condition that would interfere with the Investigator or subject-driven evaluations of AD * Any major surgery within the last 30 days before the first dose of study intervention, or any surgery planned during the course of the study * Any other sound medical, psychiatric, and/or social reason as determined by the investigator Other protocol-defined inclusion/exclusion criteria apply