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Cormax

ECR Pharmaceuticals Co., Inc.

CORMAX Scalp Application, 0.05% w/w(Clobetasol Propionate Topical Solution, USP)


FULL PRESCRIBING INFORMATION: CONTENTS*




FULL PRESCRIBING INFORMATION

Rx only

FOR TOPICAL DERMATOLOGIC USE ONLY – NOT FOR OPHTHALMIC, ORAL, OR INTRAVAGINAL USE.

CORMAX DESCRIPTION

Cormax Scalp Application, 0.05% contains the active compound clobetasol propionate, a synthetic corticosteroid, for topical dermatologic 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:

Cormax

Clobetasol propionate has the molecular formula C25H32CIFO5 and a molecular weight of 467. It is a white to cream-colored crystalline powder insoluble in water.

Cormax Scalp Application contains clobetasol propionate 0.5 mg/g in a base of carbomer 974P, isopropyl alcohol (40% w/w), purified water, and sodium hydroxide.

CLINICAL PHARMACOLOGY

The corticosteroids are a class of compounds comprising steroid hormones secreted by the adrenal cortex and their synthetic analogs. In pharmacologic doses, corticosteroids are used primarily for their anti-inflammatory and/or immunosuppressive effects. Topical corticosteroids such as clobetasol propionate are effective in the treatment of corticosteroid-responsive dermatoses primarily because of their anti-inflammatory, antipruritic, and vasoconstrictive actions. However, while the physiologic, pharmacologic, and clinical effects of the corticosteroids are well known, the exact mechanisms of their actions in each disease are uncertain.

Clobetasol propionate, a corticosteroid, has been shown to have topical (dermatologic) and systemic pharmacologic and metabolic effects characteristic of this class of drugs.

Pharmacokinetics

The extent of percutaneous absorption of topical corticosteroids, including clobetasol propionate, is determined by many factors, including the vehicle, the integrity of the epidermal barrier, and the use of occlusive dressings (see DOSAGE AND ADMINISTRATION).

As with all topical corticosteroids, clobetasol propionate can be absorbed from normal intact skin. Inflammation and/or other disease processes in the skin may increase percutaneous absorption. Occlusive dressings substantially increase the percutaneous absorption of topical corticosteroids (see DOSAGE AND ADMINISTRATION).

Once absorbed through the skin, topical corticosteroids enter pharmacokinetic pathways similarly to systemically administered corticosteroids. Corticosteroids are bound to plasma proteins in varying degrees. Corticosteroids are metabolized primarily in the liver and are then excreted by the kidneys. Some of the topical corticosteroids, including clobetasol propionate and its metabolites, are also excreted into the bile.

Following repeated nonocclusive application in the treatment of scalp psoriasis, there is some evidence that clobetasol propionate topical solution has the potential to depress plasma cortisol levels in some patients. However, hypothalamic-pituitary-adrenal (HPA) axis effects produced by systemically absorbed clobetasol propionate have been shown to be transient and reversible upon completion of a 2-week course of treatment.

CORMAX INDICATIONS AND USAGE

Cormax Scalp Application is indicated for short-term topical treatment of inflammatory and pruritic manifestations of moderate to severe corticosteroid-responsive dermatoses of the scalp. Treatment beyond 2 consecutive weeks is not recommended, and the total dosage should not exceed 50 mL/week because of the potential for the drug to suppress the HPA axis.

This product is not recommended for use in pediatric patients under 12 years of age.

CORMAX CONTRAINDICATIONS

Cormax Scalp Application is contraindicated in patients with primary infections of the scalp, or in patients who are hypersensitive to clobetasol propionate, other corticosteroids, or any ingredient in this preparation.

PRECAUTIONS

General

Clobetasol propionate is a highly potent topical corticosteroid that has been shown to suppress the HPA axis at doses as low as 2 g (of ointment) per day. Systemic absorption of topical corticosteroids has resulted in reversible HPA axis suppression, manifestations of Cushing syndrome, hyperglycemia, and glucosuria in some patients.

Conditions that augment systemic absorption include the application of the more potent corticosteroids, use over large surface areas, prolonged use, and the addition of occlusive dressings. Therefore, patients receiving a large dose of a potent topical steroid applied to a large surface area should be evaluated periodically for evidence of HPA axis suppression by using the urinary free cortisol and ACTH stimulation tests. If HPA axis suppression is noted, an attempt should be made to withdraw the drug, to reduce the frequency of application, or to substitute a less potent steroid.

Recovery of HPA axis function is generally prompt and complete upon discontinuation of the drug. Infrequently, signs and symptoms of steroid withdrawal may occur, requiring supplemental systemic corticosteroids.

Pediatric patients may absorb proportionally larger amounts of topical corticosteroids and thus be more susceptible to systemic toxicity (see PRECAUTIONS: Pediatric Use).

If irritation develops, topical corticosteroids should be discontinued and appropriate therapy instituted. Irritation is possible if Cormax Scalp Application contacts the eye. If that should occur, immediate flushing of the eye with a large volume of water is recommended.

If the inflammatory lesion becomes infected, the use of an appropriate antifungal or antibacterial agent should be instituted. If a favorable response does not occur promptly, the corticosteroid should be discontinued until the infection has been adequately controlled.

Although Cormax Scalp Application is intended for the treatment of inflammatory conditions of the scalp, it should be noted that certain areas of the body, such as the face, groin, and axillae, are more prone to atrophic changes than other areas of the body following treatment with corticosteroids. Frequent observation of the patient is important if these areas are to be treated.

As with other potent topical corticosteroids, Cormax Scalp Application should not be used in the treatment of rosacea and perioral dermatitis. Topical corticosteroids in general should not be used in the treatment of acne or as sole therapy in widespread plaque psoriasis.

Information for Patients

Patients using Cormax Scalp Application should receive the following information and instructions:

  • This medication is to be used as directed by the physician and should not be used longer than the prescribed time period.

    It is for external use only. Avoid contact with the eyes.

  • This medication should not be used for any disorder other than that for which it was prescribed.
  • The treated skin area should not be bandaged or otherwise covered or wrapped so as to be occlusive.
  • Patients should report any signs of local adverse reactions to the physician.

Laboratory Tests

The following tests may be helpful in evaluating patients for HPA axis suppression:

  •  Urinary free cortisol test
  •  ACTH stimulation test

Carcinogenesis, Mutagenesis, Impairment of Fertility

Long-term animal studies have not been performed to evaluate the carcinogenic potential of clobetasol propionate.

Studies in the rat following subcutaneous administration at dosage levels up to 50 mcg/kg/day revealed that the females exhibited an increase in the number of resorbed embryos and a decrease in the number of living fetuses at the highest dose.

Clobetasol propionate was nonmutagenic in 3 different test systems: the Ames test, the Saccharomyces cerevisiae gene conversion assay, and the E. coli B WP2 fluctuation test.

Pregnancy

Teratogenic Effects

Pregnancy Category C.

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 when applied topically; 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 1.4 and 0.04 times, respectively, the human topical dose of clobetasol propionate topical solution. 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 0.02 and 0.05 times, respectively, the human topical dose of clobetasol propionate topical solution. Abnormalities seen included cleft palate, cranioschisis, and other skeletal abnormalities.

There are no adequate and well-controlled studies of the teratogenic potential of clobetasol propionate in pregnant women. Clobetasol propionate topical solution should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

Nursing Mothers

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 topical solution is administered to a nursing woman.

Pediatric Use

Use of Cormax Scalp Application in pediatric patients under 12 years of age is not recommended.

Pediatric patients may demonstrate greater susceptibility to topical corticosteroid-induced HPA axis suppression and Cushing syndrome than mature patients because of a larger skin surface area to body weight ratio.

HPA axis suppression, Cushing 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 an absence of response to ACTH stimulation. Manifestations of intracranial hypertension include bulging fontanelles, headaches, and bilateral papilledema.

Geriatric Use

A limited number of patients at or above 65 years of age (n = 65) have been treated with Cormax Scalp Application in US and non-US clinical trials. While the number of patients is too small to permit separate analysis of efficacy and safety, the adverse reactions reported in this population were similar to those reported by younger patients. Based on available data, no adjustment of dosage of clobetasol propionate topical solution in geriatric patients is warranted.

CORMAX ADVERSE REACTIONS

Cormax Scalp Application is generally well tolerated when used for 2-week treatment periods.

The most frequent adverse events reported for Cormax Scalp Application have been local and have included burning and/or stinging sensation, which occurred in 29 of 294 patients; scalp pustules, which occurred in 3 of 294 patients; and tingling and folliculitis, each of which occurred in 2 of 294 patients. Less frequent adverse events were itching and tightness of the scalp, dermatitis, tenderness, headache, hair loss, and eye irritation, each of which occurred in 1 of 294 patients.

The following local adverse reactions are reported infrequently when topical corticosteroids are used as recommended. These reactions are listed in an approximately decreasing order of occurrence: burning, itching, irritation, dryness, folliculitis, hypertrichosis, acneiform eruptions, hypopigmentation, perioral dermatitis, allergic contact dermatitis, maceration of the skin, secondary infection, skin atrophy, striae, and miliaria. Systemic absorption of topical corticosteroids has produced reversible HPA axis suppression, manifestations of Cushing syndrome, hyperglycemia, and glucosuria in some patients. In rare instances, treatment (or withdrawal of treatment) of psoriasis with corticosteroids is thought to have exacerbated the disease or provoked the pustular form of the disease, so careful patient supervision is recommended.

To report SUSPECTED ADVERSE REACTIONS, contact ECR Pharmaceuticals Co., Inc. at 1-800-527-1955 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

OVERDOSAGE

Topically applied Cormax Scalp Application can be absorbed in sufficient amounts to produce systemic effects (see PRECAUTIONS).

CORMAX DOSAGE AND ADMINISTRATION

Cormax Scalp Application should be applied to the affected scalp areas twice daily, once in the morning and once at night.

Cormax Scalp Application is potent; therefore, treat ment must be limited to 2 consecutive weeks and amounts greater than 50 mL/week should not be used. Cormax Scalp Application is not to be used with occlusive dressings.

Geriatric Use

In studies where geriatric patients (65 years of age or older, see PRECAUTIONS) have been treated with Cormax Scalp Application, safety did not differ from that in younger patients; therefore, no dosage adjustment is recommended.

HOW SUPPLIED

Cormax Scalp Application, 0.05% w/w (Clobetasol Propionate Topical Solution, USP) is supplied in plastic squeeze bottles, 50 mL (NDC 0095-0049-50).

Store between 15° and 30°C (59° and 86°F).

Do not use near an open flame.

Rx only


Manufactured for:

ECR Pharmaceuticals

Richmond, Virginia 23255


Rev. 266:00 04/2012

PACKAGE/LABEL PRINCIPAL DISPLAY PANEL

Cormax

50 mL

NDC 0095-0049-50

Cormax® Scalp Application 0.05% w/w

(Clobetasol Propionate Topical Solution, USP)

For Dermatologic Use Only.

Not For Ophthalmic Use

Rx only

Cormax

Clobetasol Propionate SOLUTION

Product Information

Product Type Human prescription drug label Item Code (Source) NDC:0095-0049
Route of Administration TOPICAL DEA Schedule

Active Ingredient/Active Moiety

Ingredient Name Basis of Strength Strength
CLOBETASOL PROPIONATE clobetasol 0.4625 mg

Inactive Ingredients

Ingredient Name Strength
carbomer homopolymer type b/c (allyl pentaerythritol crosslinked)
ISOPROPYL ALCOHOL
water
SODIUM HYDROXIDE

Packaging

# Item Code Package Description Marketing Start Date Marketing End Date
1 50 in 1 BOTTLE
2 NDC:0095-0049-50 1 in 1 CARTON

Marketing Information

Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
ANDA ANDA074222 2012-07-05


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