A 4-Day Study to Evaluate the Photoxicity of Diacerein 1% Topical Ointment in Healthy Volunteers

Key Inclusion Criteria: * Is a healthy male or female (to be confirmed by medical history); * Is 18 years of age or older; * In the case of a female of childbearing potential, is using two acceptable forms of birth control; * In the case of a female of childbearing potential, has a negative urine pregnancy test (UPT) at Day 1 and are willing to submit to a UPT at the end of study (EOS); * Is free of any systemic or dermatological disorder, which, in the opinion of the Investigator, will interfere with the study results or increase the risk of adverse events (AEs); * Is of any Fitzpatrick Skin Type or race, providing the skin pigmentation will allow discernment of erythema Key Exclusion Criteria: * Has a history of photosensitivity or photoallergy; * Has any visible skin disease at the application site which, in the opinion of the Investigator, will interfere with the evaluation of the test site reaction; * Is using systemic/topical corticosteroids within 3 weeks prior to and/or during the study, or systemic/topical antihistamines 72 hours prior to and during the study; * Is not willing to refrain from using systemic/topical anti-inflammatory analgesics such as aspirin (occasional use of acetaminophen will be permitted); * Is taking medication known to cause phototoxic reactions (eg, tetracyclines, thiazides, nonsteroidal anti-inflammatory drugs \[NSAIDs\]); * Has psoriasis and/or active atopic dermatitis/eczema; * Has known sensitivity or allergy to constituents of materia…