Severity assessment bolsters dermatitis
treatment.
by Brunk, Doug
LA JOLLA, CALIF. -- How has your sleep been? When's the last
time your skin was totally clear? Those are the two questions Dr.
Lawrence F. Eichenfield asks his atopic dermatitis patients.
"It's amazing how families don't tell you about
sleep disturbance unless you ask," he said at a meeting sponsored
by Rady Children's Hospital and the American Academy of Pediatrics.
"At least 20% of families say they've lost sleep because of
their child's scratching.... I view sleep disturbance as a marker
for out-of-control disease."
Another way to gauge the severity of disease is to ask patients or
their parents when the last time the patient's skin was totally
clear as well as asking how the skin has been over time, so that you can
assess the skin between office visits.
He also makes it a point to ask about the quantity and use of
topical corticosteroids and other medications. "I want to know if
they're using 30 g, 50 g, or even 90 g of medication a month so I
can let them know whether I'm worried about the quantity of use or
not," said Dr. Eichenfield, chief of pediatric and adolescent
dermatology at Rady Children's Hospital and the University of
California, San Diego.
The first phase of treating atopic dermatitis is what he termed
"induction therapy," or getting the disease under control. He
recommends a course of topical corticosteroids for 1-3 weeks,
"depending on how bad it is" as a first line of treatment.
Three products have received Food and Drug Administration approval for
use in patients as young as 3 months of age: desonide nonethanolic foam
(Verdeso, Stiefel Laboratories Inc.), desonide aqueous gel (Desonate,
SkinMedica Inc.), and fluocinolone acetonide off (Derma-Smoothe, Hill
Dermaceuticals Inc.).
"Generally, we use 'strength as needed' to get the
disease under control," said Dr. Eichenfield, who was involved in
clinical studies of the topical agents but has no financial interest in
their manufacturers.
Another option is generic topical corticosteroids. "It's
nice that I can send my patients to Wal-Mart or Target and for $4 they
can get 80 g of triamcinolone 0.1% ointment," he commented.
Using wet wraps--an intensive therapy applying steroids under
hydrated gauze wraps, covered by dry wraps--for 3-4 days yields the same
results as using topical corticosteroids for 2-3 weeks, he said.
Dr. Eichenfield uses topical calcineurin inhibitors (TCIs) as
second-line agents in patients with persistent or frequently re current
atopic dermatitis. He noted that use of TCIs has dropped about 50% since
the FDA issued a black box warning in 2005 concerning the potential for
oncogenesis.
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"There have been no further data confirming any true risk
associated with the use of these medicines topically," he noted.
"There have been multiple negative studies showing generally very
low blood levels of these topical agents when used appropriately."
The second phase in treating atopic dermatitis is maintenance
therapy With severe cases, Dr. Eichenfield prefers clearly defined
regimens; in some patients this may be intermittent topical
corticosteroids, in others TCIs intermittently or daffy, and in some a
mixture of corticosteroids, TCIs, and nonsteroidal barrier creams.
The last phase in treatment is "stepped maintenance," in
which the agent or agents are decreased as tolerated. "That is the
time to step backward in frequency of application of medications,"
he advised. "A slow withdrawal of medications allows you to titrate
how little is needed to keep the skin in good shape, the patient not
itchy, and the family sleeping through the night."
Dr. Eichenfield disclosed that he has been a clinical investigator
in trials conducted by Amgen Inc., Astellas Pharma Inc., Ferndale
Laboratories Inc., Galderma Laboratories, Graceway Pharmaceuticals, Hill
Dermaceuticals Inc., Johnson & Johnson, Novartis Pharmaceuticals
Corp., and Medicis Pharmaceutical Corp. He stated that he has no
relevant financial interest in any of the companies.
BY DOUG BRUNK
San Diego Bureau
COPYRIGHT 2008 International Medical News
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NOTE: All illustrations and photos have been removed from this article.