- Male or non-pregnant female aged ≥ 18 years with a clinical diagnosis of moderate to severe facial rosacea, defined as the presence of: i. At least twelve and not more than forty inflammatory facial lesions (i.e., papules/pustules), AND ii. Subjects with a grade 3 or 4 on the 5-point Investigators Global Assessment (IGA) scale, AND iii. Persistent facial erythema (scored as at least mild on Erythema Severity Scale), AND iv. Facial telangiectasia (scored as at least mild on Telangiectasia Severity Scale.