Clobetasol Propionate (emollient)

6 ADVERSE REACTIONS • The most common adverse reaction is burning/stinging (incidence 5%); common adverse reactions (incidence < 2%) are pruritis, irritation, erythema, folliculitis, cracking and fissuring of the skin, numbness of the fingers, tenderness in the elbow, skin atrophy, and telangiectasia. (6.1) . To report SUSPECTED ADVERSE REACTIONS, contact Fougera Pharmaceuticals Inc. at 1-800-645-9833 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 clinical practice. In controlled trials with clobetasol propionate formulations, the following adverse reactions have been reported: burning/stinging, pruritis, irritation, erythema, folliculitis, cracking and fissuring of the skin, numbness of the fingers, tenderness in the elbow, skin atrophy, and telangiectasia. The incidence of local adverse reactions reported in the trials with Clobetasol propionate cream, 0.05% (emollient) was less than 2% of patients treated with the exception of burning/stinging which occurred in 5% of treated patients.

4 CONTRAINDICATIONS None None (4)

11 DESCRIPTION Clobetasol propionate cream USP, 0.05% (emollient) contains the active compound clobetasol propionate, a synthetic corticosteroid, for topical use. Clobetasol, an analog of prednisolone, has a high degree of glucocorticoid activity and a slight degree of mineralocorticoid activity. Chemically, clobetasol propionate is (11β,16β)-21-chloro-9-fluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)-pregna-1,4-diene-3,20-dione, and it has the following structural formula: Clobetasol propionate has the molecular formula C 25 H 32 ClFO 5 and a molecular weight of 467. It is a white to cream-colored crystalline powder insoluble in water. Each gram of Clobetasol propionate cream USP, 0.05% (emollient) contains 0.5 mg of clobetasol propionate in a white to off-white cream base consisting of cetostearyl alcohol, isopropyl myristate, propylene glycol, , polyoxyl 20 cetostearyl ether, dimethicone 350, citric acid, sodium citrate, purified water, and imidurea as a preservative. structure.jpeg

2 DOSAGE AND ADMINISTRATION Apply a thin layer of Clobetasol propionate cream, 0.05% (emollient) to the affected skin areas twice daily and rub in gently and completely. Wash hands after each application. Clobetasol propionate cream, 0.05% (emollient) is a super-high potency topical corticosteroid; therefore, treatment should be limited to 2 consecutive weeks, and amounts greater than 50 grams per week should not be used. In moderate to severe plaque-type psoriasis, Clobetasol propionate cream, 0.05% (emollient) applied to 5% to 10% of body surface area can be used for up to 4 weeks. The total dosage should not exceed 50 grams per week. When dosing for more than 2 weeks, any additional benefits of extending treatment should be weighed against the risk of HPA suppression. Therapy should be discontinued when control has been achieved. If no improvement is seen within 2 weeks, reassessment of diagnosis may be necessary. Treatment beyond 4 consecutive weeks is not recommended. Clobetasol propionate cream, 0.05% (emollient) should not be used with occlusive dressings. • Apply a thin layer of Clobetasol propionate cream, 0.05% (emollient) to the affected skin areas twice daily and rub in gently and completely. (2) • Treatment should be limited to 2 consecutive weeks, and amounts greater than 50 grams per week should not be used. (2) • In moderate to severe plaque-type psoriasis, Clobetasol propionate cream, 0.05% (emollient) applied to 5% to 10% of body surface area can be used for up to 4 weeks. The total dosage should not exceed 50 grams per week. When dosing for more than 2 weeks, any additional benefit of extending treatment should be weighed against the risk of HPA suppression. (2)

1 INDICATIONS AND USAGE Clobetasol propionate cream, 0.05% (emollient) is a corticosteroid indicated for: • The relief of the inflammatory and pruritic manifestations of corticosteroid-responsive dermatoses in patients 12 years of age or older. (1.1) • The treatment of moderate to severe plaque-type psoriasis in patients 16 years of age and older. (1.2) Limitations of Use • Clobetasol propionate cream, 0.05% (emollient) should not be used in the treatment of rosacea or perioral dermatitis, and should not be used on the face, groin, or axillae. (1.3) • The total dosage should not exceed 50 grams per week. (1.3) • Avoid use if skin atrophy is present at the treatment site. (1.3) Clobetasol propionate cream, 0.05% (emollient) is a super-high potency corticosteroid indicated for: 1.1 Corticosteroid-Responsive Dermatoses Clobetasol propionate cream, 0.05% (emollient) is indicated for the relief of the inflammatory and pruritic manifestations of corticosteroid-responsive dermatoses in patients 12 years of age and older. Treatment should be limited to 2 consecutive weeks, and the total dosage should not exceed 50 grams per week. 1.2 Moderate to Severe Plaque-Type Psoriasis Clobetasol propionate cream, 0.05% (emollient) is indicated for the topical treatment of moderate to severe plaque-type psoriasis. Treatment beyond 4 consecutive weeks is not recommended. Use in pediatric patients under 16 years of age is not recommended. 1.3 Limitations of Use Clobetasol propionate cream, 0.05% (emollient) should not be used in the treatment of rosacea or perioral dermatitis, and should not be used on the face, groin, or axillae. The total dosage should not exceed 50 grams per week. Avoid use if skin atrophy is present at the treatment site.

10 OVERDOSAGE Topically applied Clobetasol propionate cream, 0.05% (emollient) can be absorbed in sufficient amounts to produce systemic effects [ see Warnings and Precautions (5.1) ].

12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Like other topical corticosteroids, clobetasol propionate has anti-inflammatory, antipruritic, and vasoconstrictive properties. The mechanism of the anti-inflammatory activity of the topical steroids, in general, is unclear. However, corticosteroids are thought to act by the induction of phospholipase A 2 inhibitory proteins, collectively called lipocortins. It is postulated that these proteins control the biosynthesis of potent mediators of inflammation such as prostaglandins and leukotrienes by inhibiting the release of their common precursor, arachidonic acid. Arachidonic acid is released from membrane phospholipids by phospholipase A 2 . 12.2 Pharmacodynamics Clobetasol propionate cream, 0.05% (emollient) is in the super-high range of potency as demonstrated in a vasoconstrictor study in healthy subjects when compared with other topical corticosteroids. However, similar blanching scores do not necessarily imply therapeutic equivalence. 12.3 Pharmacokinetics The extent of percutaneous absorption of topical corticosteroids is determined by many factors, including the vehicle and the integrity of the epidermal barrier. Topical corticosteroids can be absorbed from normal intact skin. Inflammation and/or other disease processes in the skin may increase percutaneous absorption.

12.1 Mechanism of Action Like other topical corticosteroids, clobetasol propionate has anti-inflammatory, antipruritic, and vasoconstrictive properties. The mechanism of the anti-inflammatory activity of the topical steroids, in general, is unclear. However, corticosteroids are thought to act by the induction of phospholipase A 2 inhibitory proteins, collectively called lipocortins. It is postulated that these proteins control the biosynthesis of potent mediators of inflammation such as prostaglandins and leukotrienes by inhibiting the release of their common precursor, arachidonic acid. Arachidonic acid is released from membrane phospholipids by phospholipase A 2 .

12.2 Pharmacodynamics Clobetasol propionate cream, 0.05% (emollient) is in the super-high range of potency as demonstrated in a vasoconstrictor study in healthy subjects when compared with other topical corticosteroids. However, similar blanching scores do not necessarily imply therapeutic equivalence.

12.3 Pharmacokinetics The extent of percutaneous absorption of topical corticosteroids is determined by many factors, including the vehicle and the integrity of the epidermal barrier. Topical corticosteroids can be absorbed from normal intact skin. Inflammation and/or other disease processes in the skin may increase percutaneous absorption.

20210701

10

3 DOSAGE FORMS AND STRENGTHS Cream, 0.05%. Each gram of Clobetasol propionate cream USP, 0.05% (emollient) contains 0.5 mg of clobetasol propionate in a white to off-white cream base. Cream: 0.05% (3)

Clobetasol Propionate (emollient) clobetasol propionate clobetasol propionate clobetasol cetostearyl alcohol isopropyl myristate POLYOXYL 20 CETOSTEARYL ETHER dimethicone 350 citric acid monohydrate water imidurea SODIUM CITRATE, UNSPECIFIED FORM PROPYLENE GLYCOL

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis Long-term animal studies have not been performed to evaluate the carcinogenic potential of clobetasol propionate. Mutagenesis Clobetasol propionate was nonmutagenic in three different test systems: the Ames test, the Saccharomyces cerevisiae gene conversion assay, and the E. Coli B WP2 fluctuation test. Impairment of Fertility Studies in the rat following oral administration at dosage levels up to 50 mg/kg per day revealed no significant effect on the males. The females exhibited an increase in the number of resorbed embryos and a decrease in the number of living fetuses at the highest dose.

13 NONCLINICAL TOXICOLOGY 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis Long-term animal studies have not been performed to evaluate the carcinogenic potential of clobetasol propionate. Mutagenesis Clobetasol propionate was nonmutagenic in three different test systems: the Ames test, the Saccharomyces cerevisiae gene conversion assay, and the E. Coli B WP2 fluctuation test. Impairment of Fertility Studies in the rat following oral administration at dosage levels up to 50 mg/kg per day revealed no significant effect on the males. The females exhibited an increase in the number of resorbed embryos and a decrease in the number of living fetuses at the highest dose.

ANDA075430

Clobetasol Propionate (emollient)

clobetasol propionate

0168-0301

HUMAN PRESCRIPTION DRUG

TOPICAL

Package Label - Principal Display Panel – 15g Tube Label NDC 0168-0301-15 CLOBETASOL PROPIONATE CREAM USP, 0.05% (EMOLLIENT) Rx only FOR TOPICAL USE ONLY. NET WT 15 grams 15gtube

Fougera Pharmaceuticals Inc. E. FOUGERA & CO. A division of Fougera Pharmaceuticals Inc. Melville, New York 11747 46289070A R07/2021 #262

17 PATIENT COUNSELING INFORMATION Inform patients using topical corticosteroids of the following information and instructions: • Clobetasol propionate cream, 0.05% (emollient) is for external use only. Avoid contact with the eyes. • Use as directed. Do not use Clobetasol propionate cream, 0.05% (emollient) for any disorder other than that for which it was prescribed. Do not use longer than the prescribed time period. • Do not use other corticosteroid-containing products while using Clobetasol propionate cream, 0.05% (emollient) unless directed by the physician. • The treated skin area should not be bandaged, otherwise covered, or wrapped so as to be occlusive unless directed by the physician. • Wash hands after applying the medication. • Report any signs of local or systemic adverse reactions to the physician. • Inform their physicians that they are using Clobetasol propionate cream, 0.05% (emollient) if surgery is contemplated. If you go to another doctor for illness, injury or surgery, tell the doctor you are using Clobetasol propionate cream, 0.05% (emollient). • Do not use Clobetasol propionate cream, 0.05% (emollient) on the face, underarms or groin areas. • As with other corticosteroids, therapy should be discontinued when control is achieved. If no improvement is seen within 2 weeks, contact the physician. • Use no more than 50 grams per week of Clobetasol propionate cream, 0.05% (emollient). • Store between 59°F and 86° F (15°C and 30°C). Do not refrigerate.

14 CLINICAL STUDIES In a controlled clinical trial involving patients with moderate to severe plaque-type psoriasis, Clobetasol propionate cream, 0.05% (emollient) was applied to 5% to 10% of body surface area. In this trial, there were no clobetasol-treated patients with clinically significant decreases in morning cortisol levels after 4 weeks of treatment; however, morning cortisol levels may not identify patients with adrenal dysfunction.

8.5 Geriatric Use Clinical studies of Clobetasol propionate cream, 0.05% (emollient) did not include sufficient numbers of subjects aged 65 and older to determine whether they respond differently from younger subjects. In general, dose selection for an elderly patient should be cautious.

8.3 Females and Males of Reproductive Potential Systemically administered corticosteroids appear in human milk and could suppress growth, interfere with endogenous corticosteroid production, or cause other untoward effects. It is not known whether topical administration of corticosteroids could result in sufficient systemic absorption to produce detectable quantities in human milk. Because many drugs are excreted in human milk, caution should be exercised when Clobetasol propionate cream, 0.05% (emollient) is administered to a nursing woman.

8.4 Pediatric Use Safety and effectiveness of Clobetasol propionate cream, 0.05% (emollient) in pediatric patients have not been established and its use in pediatric patients under 12 years of age is not recommended. In a study including 12 subjects ages 18 years and older with psoriasis or atopic dermatitis involving at least 30% body surface area (BSA), adrenal suppression was identified in 3 out of 12 subjects (25%) following 1 week of treatment. Four-week HPA axis suppression studies with Clobetasol propionate cream, 0.05% (emollient) in pediatric subjects have not been conducted. Because of a higher ratio of skin surface area to body mass, pediatric patients are at a greater risk than adults of HPA axis suppression and Cushing's syndrome when they are treated with topical corticosteroids. They are therefore also at greater risk of glucocorticosteroid insufficiency during or after withdrawal of treatment. Adverse effects including striae have been reported with inappropriate use of topical corticosteroids in infants and children. HPA axis suppression, Cushing's syndrome, linear growth retardation, delayed weight gain, and intracranial hypertension have been reported in children receiving topical corticosteroids. Manifestations of adrenal suppression in children include low plasma cortisol levels and absence of response to ACTH stimulation. Manifestations of intracranial hypertension include bulging fontanelles, headaches, and bilateral papilledema. The use of Clobetasol propionate cream, 0.05% (emollient) for 4 consecutive weeks has not been studied in pediatric patients under 16 years of age.

8.1 Pregnancy Pregnancy Category C. There are no adequate and well-controlled studies in pregnant women. Therefore, Clobetasol propionate cream, 0.05% (emollient) should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Corticosteroids have been shown to be teratogenic in laboratory animals when administered systemically at relatively low dosage levels. Some corticosteroids have been shown to be teratogenic after dermal application to laboratory animals. Clobetasol propionate has not been tested for teratogenicity by this route; however, it is absorbed percutaneously, and when administered subcutaneously it was a significant teratogen in both the rabbit and mouse. Clobetasol propionate has greater teratogenic potential than steroids that are less potent. Teratogenicity studies in mice using the subcutaneous route resulted in fetotoxicity at the highest dose tested (1 mg/kg) and teratogenicity at all dose levels tested down to 0.03 mg/kg. These doses are approximately 0.33 and 0.01 times, respectively, the human topical dose of Clobetasol propionate cream, 0.05% (emollient). Abnormalities seen included cleft palate and skeletal abnormalities. In rabbits, clobetasol propionate was teratogenic at doses of 3 and 10 mcg/kg. These doses are approximately 0.001 and 0.003 times, respectively, the human topical dose of Clobetasol propionate cream, 0.05% (emollient). Abnormalities seen included cleft palate, cranioschisis, and other skeletal abnormalities.

8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Pregnancy Category C. There are no adequate and well-controlled studies in pregnant women. Therefore, Clobetasol propionate cream, 0.05% (emollient) should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Corticosteroids have been shown to be teratogenic in laboratory animals when administered systemically at relatively low dosage levels. Some corticosteroids have been shown to be teratogenic after dermal application to laboratory animals. Clobetasol propionate has not been tested for teratogenicity by this route; however, it is absorbed percutaneously, and when administered subcutaneously it was a significant teratogen in both the rabbit and mouse. Clobetasol propionate has greater teratogenic potential than steroids that are less potent. Teratogenicity studies in mice using the subcutaneous route resulted in fetotoxicity at the highest dose tested (1 mg/kg) and teratogenicity at all dose levels tested down to 0.03 mg/kg. These doses are approximately 0.33 and 0.01 times, respectively, the human topical dose of Clobetasol propionate cream, 0.05% (emollient). Abnormalities seen included cleft palate and skeletal abnormalities. In rabbits, clobetasol propionate was teratogenic at doses of 3 and 10 mcg/kg. These doses are approximately 0.001 and 0.003 times, respectively, the human topical dose of Clobetasol propionate cream, 0.05% (emollient). Abnormalities seen included cleft palate, cranioschisis, and other skeletal abnormalities. 8.3 Females and Males of Reproductive Potential Systemically administered corticosteroids appear in human milk and could suppress growth, interfere with endogenous corticosteroid production, or cause other untoward effects. It is not known whether topical administration of corticosteroids could result in sufficient systemic absorption to produce detectable quantities in human milk. Because many drugs are excreted in human milk, caution should be exercised when Clobetasol propionate cream, 0.05% (emollient) is administered to a nursing woman. 8.4 Pediatric Use Safety and effectiveness of Clobetasol propionate cream, 0.05% (emollient) in pediatric patients have not been established and its use in pediatric patients under 12 years of age is not recommended. In a study including 12 subjects ages 18 years and older with psoriasis or atopic dermatitis involving at least 30% body surface area (BSA), adrenal suppression was identified in 3 out of 12 subjects (25%) following 1 week of treatment. Four-week HPA axis suppression studies with Clobetasol propionate cream, 0.05% (emollient) in pediatric subjects have not been conducted. Because of a higher ratio of skin surface area to body mass, pediatric patients are at a greater risk than adults of HPA axis suppression and Cushing's syndrome when they are treated with topical corticosteroids. They are therefore also at greater risk of glucocorticosteroid insufficiency during or after withdrawal of treatment. Adverse effects including striae have been reported with inappropriate use of topical corticosteroids in infants and children. HPA axis suppression, Cushing's syndrome, linear growth retardation, delayed weight gain, and intracranial hypertension have been reported in children receiving topical corticosteroids. Manifestations of adrenal suppression in children include low plasma cortisol levels and absence of response to ACTH stimulation. Manifestations of intracranial hypertension include bulging fontanelles, headaches, and bilateral papilledema. The use of Clobetasol propionate cream, 0.05% (emollient) for 4 consecutive weeks has not been studied in pediatric patients under 16 years of age. 8.5 Geriatric Use Clinical studies of Clobetasol propionate cream, 0.05% (emollient) did not include sufficient numbers of subjects aged 65 and older to determine whether they respond differently from younger subjects. In general, dose selection for an elderly patient should be cautious.

16 HOW SUPPLIED/STORAGE AND HANDLING How Supplied Clobetasol Propionate Cream USP, 0.05% (emollient), is a white to off-white cream, supplied as follows: NDC 0168-0301-15 15 g tube NDC 0168-0301-30 30 g tube NDC 0168-0301-60 60 g tube Storage and Handling Store between 15°C and 30°C (59°F and 86°F) Clobetasol Propionate Cream USP, 0.05% (emollient) should not be refrigerated.

Storage and Handling Store between 15°C and 30°C (59°F and 86°F) Clobetasol Propionate Cream USP, 0.05% (emollient) should not be refrigerated.