Steroid-Free Over-the-Counter Eczema Skin Care Formulations Reduce Risk of Flare, Prolong Time to Flare, and Reduce Eczema Symptoms in Pediatric Subjects With Atopic Dermatitis

May 2015 | Volume 14 | Issue 5 | Original Article | 478 | Copyright © May 2015


Teresa M. Weber PhD,a Frank Samarin MD,b Michael J. Babcock MD,c
Alexander Filbry PhD,d and Frank Rippke MDd

aUS Research and Development, Beiersdorf Inc, Wilton, CT
bMountaintop Dermatology, Colorado Springs, CO
cColorado Springs Dermatology Clinic, Colorado Springs, CO
dResearch and Development, Beiersdorf AG, Hamburg, Germany

table 9
rienced an adverse event (AE) during the treatment phase. The subject presented at the 2-week visit with worsening eczema on the back, chest, and stomach, whereby the subject was withdrawn from the study and treated with 1% hydrocortisone, and the eczema subsequently resolved.

DISCUSSION

A functioning skin barrier protects the body from infection, irritation, and TEWL. Characteristics of a healthy skin barrier include adequate hydration; natural moisturizing factor, lipid, and ceramide content; and an acidic pH. Barrier defects play a central role in the pathogenesis of AD. Consequently, daily moisturizing practices are important to support proper barrier function that can protect the skin from excessive bacterial colonization (especially by Staphylococcus aureus) and external irritants that provoke and exacerbate flares.18 Daily moisturizing improves skin hydration, limits TEWL,1 and can relieve pruritus, 19 helping to keep AD symptoms under control.
Reported rates of AD are high in children, and although approximately 70% of affected children outgrow their AD, their skin will remain susceptible to irritation throughout their lives.1,2,10 The baseline questionnaire revealed that 82.1% of subjects had 3 or more flares in the year prior to the study. For treatment of their child’s most recent flare, 26.7% of parents relied on advice from their pediatrician and 2.2% from their dermatologists; however, 68.9% of respondents (n=45) reported that they did not seek medical advice. This is not surprising, as it is unlikely that parents would take their child to a physician for every flare. In addition, 60% of parents used a moisturizer to treat their child’s last flare. These results reinforce the need for education on the use of emollient moisturizers with proven efficacy to manage AD.
Due to the chronic, relapsing nature of AD, it is important to adopt skin care practices that can help minimize flare incidence and severity, including bathing with gentle cleansers and daily moisturizing with product formulations that are optimized to address the specific needs of atopic skin. Previous studies have examined the efficacy and tolerability of the Body Cream and Flare Treatment individually on adult and infant/child cohorts, but not as a skin care regimen for the management of AD.16,17 In these earlier studies, Body Cream and Flare Treatment were found to significantly improve skin hydration and ameliorate AD symptom severity. Both products were safe and well tolerated in all subjects.
This clinical study tested the efficacy and tolerability of Body Cream and Flare Treatment when used in conjunction with a mild cleansing body wash formulation. Use of Body Cream and cleanser significantly reduced the incidence of flare compared with use of cleanser only (21% vs 65%, P=.006). In addition, treatment with Body Cream prolonged the flare-free interval for moisturizer group subjects, likely by helping improve and maintain barrier function,16 validating Body Cream as a daily skin care product for the management of eczema. In subjects who experienced flare, baseline ADSI scores were notably higher for the control subjects than for the subjects receiving Body Cream, suggesting a further benefit of daily moisturizer use. Observed differences between groups in time to flare, the percentage of subjects experiencing flare, and the significant reduction in risk of flare reinforce the benefits of daily emollient therapy with moisturizers that have demonstrated clinical efficacy as a cornerstone in AD management.
Other studies of emollient treatment also support its use for the management and prevention of AD. In a study design similar to ours but conducted in adults, moisturizer (5% urea oil-in-water emulsion) was applied daily to a cleared flare for 6 months or left untreated.20 The differences between moisturizer and control groups in the median time to flare (>180 days vs 30 days) and percentage of subjects experiencing flare (68% vs 32%) were similar to those in our study.20 (It should be noted that 5% urea is not typically used for pediatric AD.) To further probe the relevance of daily moisturization in AD, two prevention studies were conducted in neonates with a family history of AD to determine whether early treatment with emollient therapy could reduce the risk of developing AD among high-risk neonates.21,22 Newborns with either a parent or full sibling with AD were treated with daily emollient therapy within 1 to 3 weeks of birth for 6 months or were part of the control group that did not apply any topical products. In both studies, there was a statistically significant reduction in the relative risk of developing eczema of 32% to 50%.21,22
The study results also confirmed the efficacy of Flare Treatment in reducing active eczema symptom severity in infants and children. Flare Treatment was observed to be highly effective in reducing symptom severity, without concomitant medication, as demonstrated by significant decreases in ADSI scores from baseline after week 2 and week 4 in the control group, indicating the effectiveness of the acute therapy despite the lack of pre-flare skin care with moisturizer.