ENSTILAR

5 WARNINGS AND PRECAUTIONS Flammability: The propellants in Enstilar Foam are flammable. Instruct the patient to avoid fire, flame, and smoking during and immediately following application. ( 5.1 ) Hypercalcemia and Hypercalciuria: Hypercalcemia and hypercalciuria have been observed with use of Enstilar Foam. If hypercalcemia or hypercalciuria develop, discontinue treatment until parameters of calcium metabolism have normalized. ( 5.2 ) Effects on Endocrine System: Topical corticosteroids can produce reversible hypothalamic-pituitary-adrenal (HPA) axis suppression with the potential for glucocorticosteroid insufficiency during and after withdrawal of treatment. Risk factors include the use of high-potency topical corticosteroids, use over a large surface area or on areas under occlusion, prolonged use, altered skin barrier, liver failure, and use in pediatric patients. Modify use should HPA axis suppression develop. ( 5.3 , 8.4 ) Ophthalmic Adverse Reactions: Topical corticosteroid products may increase the risk of cataracts and glaucoma. If visual symptoms occur, consider referral to an ophthalmologist. ( 5.5 ) 5.1 Flammability The propellants in Enstilar Foam are flammable. Instruct the patient to avoid fire, flame, and smoking during and immediately following application. 5.2 Hypercalcemia and Hypercalciuria Hypercalcemia and hypercalciuria have been observed with use of Enstilar Foam. If hypercalcemia or hypercalciuria develop, discontinue treatment until parameters of calcium metabolism have normalized. The incidence of hypercalcemia and hypercalciuria following Enstilar Foam treatment of more than 56 weeks has not been evaluated [ s ee Clinical Pharmacology (12.2) ]. 5.3 Effects on Endocrine System Hypothalamic-Pituitary-Adrenal Axis Suppression Systemic absorption of topical corticosteroids can cause reversible hypothalamic-pituitary-adrenal (HPA) axis suppression with the potential for clinical glucocorticosteroid insufficiency. This may occur during treatment or upon withdrawal of treatment. Factors that predispose a patient to HPA axis suppression include the use of high-potency steroids, large treatment surface areas, prolonged use, use of occlusive dressings, altered skin barrier, liver failure, and young age. Evaluation for HPA axis suppression may be done by using the adrenocorticotropic hormone (ACTH) stimulation test. If HPA axis suppression is documented, gradually withdraw Enstilar Foam, reduce the frequency of application, or substitute with a less potent corticosteroid. The following trials evaluated the effects of Enstilar Foam on HPA axis suppression [ see Clinical Pharmacology (12.2) ]: In a trial evaluating the effects of Enstilar Foam on the HPA axis, 35 adult subjects applied Enstilar Foam on the body and scalp. Adrenal suppression was not observed in any subjects after 4 weeks of treatment. In another trial, 33 adolescent subjects age 12 to 17 years applied Enstilar Foam on the body and scalp. Adrenal suppression occurred in 3 (9%) of the subjects. In a trial, 21 subjects aged 18 years and older with plaque psoriasis applied Enstilar Foam once daily for 4 weeks and then twice weekly on 2 non-consecutive days for 52 weeks, including once daily for 4 weeks if loss of response occurred. Adrenal suppression was observed in 2 (10%) of the subjects. Cushing's Syndrome and Hyperglycemia Systemic effects of topical corticosteroids may also include Cushing's syndrome, hyperglycemia, and glucosuria. Additional Considerations for Endocrine Adverse Reactions Pediatric patients may be more susceptible to systemic toxicity due to their larger skin surface to body mass ratios [see Use in Specific Populations (8.4) ] . Use of more than one corticosteroid-containing product at the same time may increase the total systemic corticosteroid exposure. 5.4 Allergic Contact Dermatitis Allergic contact dermatitis has been observed with topical calcipotriene and topical corticosteroids. Allergic contact dermatitis to a topical corticosteroid is usually diagnosed by observing a failure to heal rather than a clinical exacerbation. Corroborate such an observation with appropriate diagnostic patch testing. 5.5 Ophthalmic Adverse Reactions Use of topical corticosteroids, including Enstilar ® Foam, may increase the risk of posterior subcapsular cataracts and glaucoma. Cataracts and glaucoma have been reported with the postmarketing use of topical corticosteroid products. Avoid contact with Enstilar Foam with eyes. Enstilar Foam may cause eye irritation. Advise patients to report any visual symptoms and consider referral to an ophthalmologist for evaluation .

6 ADVERSE REACTIONS Adverse reactions reported in < 1% of subjects included application site irritation, application site pruritus, folliculitis, skin hypopigmentation, hypercalcemia, urticaria, and exacerbation of psoriasis. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact LEO Pharma Inc. at 1-877-494-4536 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Clinical Trials Conducted in Subjects 18 years and older with Psoriasis The rates of adverse reactions described below were from three randomized, multicenter, vehicle and/or active-controlled clinical trials in adult subjects with plaque psoriasis [see Clinical Studies (14) ] . Subjects applied study product once daily for 4 weeks, and the median weekly dose of Enstilar Foam was 25 grams. Adverse reactions reported in <1% of adult subjects treated with Enstilar Foam included: application site irritation, application site pruritus, folliculitis, skin hypopigmentation, hypercalcemia, urticaria, and exacerbation of psoriasis. Clinical Trials Conducted in Subjects 12 to 17 years with Psoriasis In one uncontrolled clinical trial, 106 subjects aged 12 to 17 years with plaque psoriasis of the scalp and body applied Enstilar Foam once daily for up to 4 weeks. The median weekly dose was 40 grams. Adverse reactions reported in <1% of adolescent subjects treated were acne, erythema, application site pain, and skin reactions [see Use in Specific Populations (8.4) and Clinical Pharmacology (12.2) ]. 6.2 Postmarketing Experience Because adverse reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Postmarketing reports for local adverse reactions to Enstilar Foam included application site burning. Postmarketing reports for local adverse reactions to topical corticosteroids included atrophy, striae, telangiectasia, dryness, perioral dermatitis, secondary infection, and miliaria. Ophthalmic adverse reactions of cataracts, glaucoma, and increased intraocular pressure have been reported with the use of topical corticosteroids, including topical betamethasone products.