General: Clobetasol propionate is a super-potent topical corticosteroid
that has been shown to suppress the adrenals at 7.0 g of OLUX (clobetasol propionate) Foam per day.
Lesser amounts of OLUX (clobetasol propionate) Foam were not studied. Systemic absorption of topical
corticosteroids has caused reversible adrenal suppression with the potential
for glucocorticosteroid insufficiency after withdrawal of treatment. Manifestations
of Cushing's syndrome, hyperglycemia, and glucosuria can also be produced in
some patients by systemic absorption of topical corticosteroids while on treatment.
Conditions which augment systemic absorption include the application of more
potent steroids, use over large surface areas, prolonged use, and the addition
of occlusive dressings.
Patients applying a topical steroid to a large surface area or to areas under
occlusion should be evaluated periodically for evidence of adrenal suppression.
If adrenal 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 upon discontinuation of topical
corticosteroids. Infrequently, signs and symptoms of glucocorticosteroid insufficiency
may occur requiring supplemental systemic corticosteroids. For information on
systemic supplementation, see prescribing information for those products.
Pediatric patients may be more susceptible to systemic toxicity from equivalent
doses due to their larger skin surface to body mass ratios. See PRECAUTIONS-Pediatric
Use.
If irritation develops, OLUX (clobetasol propionate) Foam should be discontinued and appropriate therapy
instituted. Allergic contact dermatitis with corticosteroids is usually diagnosed
by observing a failure to heal rather than by noting a clinical exacerbation,
as with most topical products not containing corticosteroids. Such an observation
should be corroborated with appropriate diagnostic patch testing.
In the presence of dermatological infections, the use of an appropriate antifungal
or antibacterial agent should be instituted. If a favorable response does not
occur promptly, use of OLUX (clobetasol propionate) Foam should be discontinued until the infection
has been adequately controlled.
Laboratory Tests: The following tests may be helpful in evaluating patients
for adrenal suppression:
ACTH stimulation test
A.M. plasma cortisol test
Urinary free cortisol test
Carcinogenesis, Mutagenesis, and Impairment of Fertility: Long-term
animal studies have not been performed to evaluate the carcinogenic potential
of clobetasol propionate.
Clobetasol propionate was non-mutagenic in three different test systems: the
Ames test, the Saccharomyces cerevisiae gene conversion assay, and the
E. coli B WP2 fluctuation test.
Studies in the rat following subcutaneous administration of clobetasol propionate
at dosage levels up to 0.05 mg/kg per 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.
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 by the topical
route; however, it is absorbed percutaneously, and when administered subcutaneously,
it was a significant teratogen in both the rabbit and the 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 OLUX (clobetasol propionate) based on body surface area comparisons. Abnormalities
seen included cleft palate and skeletal abnormalities.
In rabbits, clobetasol propionate was teratogenic at doses of 0.003 and 0.01
mg/kg. These doses are approximately 0.02 and 0.05 times, respectively, the
human topical dose of OLUX (clobetasol propionate) based on body surface area comparisons. 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. OLUX (clobetasol propionate) Foam should be used during
pregnancy only if the potential benefit justifies the potential risk to the
fetus.
Drugs of this class should not be used extensively on pregnant patients,
in large amounts, or for prolonged periods of time.
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 breast milk. Because many drugs are excreted
in human milk, caution should be exercised when OLUX (clobetasol propionate) Foam is administered to
a nursing woman.
Pediatric Use: Safety and effectiveness of OLUX (clobetasol propionate) Foam in pediatric
patients have not been established; therefore, use in children under 12 years
of age is not recommended. Because of a higher ratio of skin surface area to
body mass, pediatric patients are at a greater risk than adults of adrenal suppression
and Cushing's syndrome when they are treated with topical corticosteroids. Pediatric
patients are therefore at greater risk of adrenal insufficiency during and/or
after withdrawal of treatment. Adverse effects including striae have been reported
with inappropriate use of topical corticosteroids in infants and children.
Adrenal 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 an absence of response to ACTH stimulation. Manifestations
of intracranial hypertension include bulging fontanelles, headaches, and bilateral
papilledema.
Geriatric Use: Clinical studies of OLUX (clobetasol propionate) Foam did not include
sufficient numbers of subjects aged 65 and over to determine whether they respond
differently from younger subjects. Other reported clinical experience has not
identified differences in responses between the elderly and younger patients.
In general, dose selection for an elderly patient should be cautious, usually
starting at the low end of the dosing range, reflecting the greater frequency
of decreased hepatic, renal, or cardiac function, and of concomitant disease
or other drug therapy.
Last reviewed on RxList: 5/23/2008
This monograph has been modified to include the generic and brand name in many instances.