Study objectives:

• To compare efficacy and safety of Ivermectin 1% cream versus metronidazole 0.75% cream in subjects with papulopustular rosacea after 16-week topical treatment.
• And to compare, for subjects initially successfully treated by 16 weeks treatment, Ivermectin 1 % cream versus metronidazole 0.75% cream during a 36-week extension period by assessing, the time of first relapse, the relapse rate, and the number of days free of treatment

Inclusion Criteria:

• Subjects with papulopustular rosacea scored 3 (moderate) or 4 (severe) according to the Investigator Global Assessment (IGA),
• Subjects with at least 15 but not more than 70 inflammatory lesions (papules and pustules) on the face.

Exclusion Criteria:

• Subjects with particular forms of rosacea (rosacea conglobate, rosacea fulminant, isolated rhinophyma, isolated pustulosis of the chin) or other facial dermatoses that may be confounded with papulopustular rosacea, such as peri oral dermatitis, facial keratosis pilar, or seborrheic dermatitis and acne,
• Subjects with rosacea with more than two nodules on the face.