The Efficacy and Safety of Tacrolimus Ointment in Adult Patients With Moderate to Severe Atopic Dermatitis

This is an open-label (all people know the identity of the intervention), prospective (study following participants forward in time), randomized (like the flip of a coin), multi-center study in adult participants with moderate to severe atopic dermatitis. Participants will be treated with 0.1 percent concentration of tacrolimus ointment which will be applied twice daily for 4 weeks or until 1 week after the affected areas defined for treatment at baseline are completely cleared, whichever is first. The study will consist of 6 visits: pre-study (optional), Baseline or Day 1, Weeks 1, 2, 3 and 4 (end-of-treatment). The ointment should be applied at least 2 hours before or at least 30 minutes after bathing, showering, shaving, use of sauna, or heavy exercise (i.e. causes sweating). On study visit days, the ointment should be applied at least 2 hours before the visit. Efficacy evaluation will be done at all subsequent study visits in participants receiving study drug for at least 3 consecutive days (minimum of 5 applications) while the participants who will receive at least 1 application of the study drug, will be evaluated for safety. Primary efficacy evaluation will be based on the Physician's Global Evaluation of Clinical Response (PhGECR). Participants' safety will be monitored throughout the study.