Study Comparing Treatment Effects of Crisaborole Ointment with Vehicle Ointment (No Crisaborole) in Adults with Stasis Dermatitis. A Phase 2, Randomized, Double-Blind, Vehicle-Controlled, Proof-of-Concept Study to Evaluate the Efficacy, Safety, and Local Tolerability of Crisaborole Ointment, 2%, in Adult Participants with Stasis Dermatitis without Active Skin Ulceration.