A Study to Evaluate the Efficacy and Safety of Ruxolitinib Cream in Children (6 to < 12 Years Old) With Nonsegmental Vitiligo

Inclusion Criteria: * Aged 6 to \< 12 years at the time of signing the ICF. * Clinical diagnosis of nonsegmental vitiligo with depigmented area including ≥ 0.5% BSA on the face, ≥ 0.5 F-VASI, ≥ 3% BSA on nonfacial areas, ≥ 3 T-VASI. * Total body vitiligo area does not exceed 10% BSA. * Pigmented hair within some of the areas of vitiligo on the face. * Must agree to discontinue all agents used to treat vitiligo from screening through the final safety follow-up visit. * For sexually active participants (except participants who are prepubescent) willingness to avoid pregnancy or fathering a child as defined in the protocol. Exclusion Criteria: * Diagnosis of other forms of vitiligo (eg, segmental). * Other differential diagnosis of vitiligo or other skin depigmentation disorders (eg, piebaldism, pityriasis alba, leprosy, postinflammatory hypopigmentation, progressive macule hypomelanosis, nevus anemicus, chemical leukoderma, and tinea versicolor). * Any other skin disease that, in the opinion of the investigator, would interfere with the study drug application or study assessments. * Prior or current use of depigmentation treatments (eg, monobenzone). * Concurrent conditions and history of protocol-defined diseases * Any serious illness or medical, physical, or psychiatric condition(s) that, in the investigator's opinion, would interfere with full participation in the study, including application of study cream and attending required study visits; pose a significant risk to t…