Dataset Information

Retapamulin 1% Ointment and Clobetasol Propionate 0.05% Foam is More Efficacious than Vehicle Ointment and Clobetasol 0.05% Propionate Foam in the Treatment of Hand/Foot Dermatitis: A Single Center, Randomized, Double-blind Study.

ABSTRACT: BACKGROUND:Staphylococcus aureus has been implicated in the pathogenesis of adult hand/foot dermatitis. OBJECTIVE:The authors hypothesized that retapamulin 1% ointment and clobetasol propionate 0.05% foam would decrease disease severity in subjects with hand/foot dermatitis and provide a higher clearance of Staphylococcus aureus colonization, when compared to vehicle (placebo) ointment and clobetasol propionate 0.05% foam. METHODS:Adult subjects with moderate to very severe hand/foot dermatitis had twice-daily topical application of clobetasol propionate 0.05% foam to hands/feet for 14 days and were randomized to apply either retapamulin 1% ointment or vehicle ointment twice daily to hands/feet and nares for five days. RESULTS:Seventy-three percent of subjects in the retapamulin/clobetasol group were clear/almost clear at Day 15 compared to 47 percent of subjects in the vehicle/clobetasol group (p-value of 0.04). The percentage of subjects who had both negative skin and nares cultures and were clear/almost clear was also statistically significant in favor of the retapamulin/clobetasol group at Day 15 (p-value of 0.05). LIMITATIONS:Sample size, study population. CONCLUSION:At Day 15, retapamulin 1% ointment with clobetasol propionate 0.05% foam was more efficacious than vehicle ointment and clobetasol propionate 0.05% foam for disease improvement and Staphylococcus aureus clearance in adult subjects with hand/foot dermatitis.

SUBMITTER: Haddican M

PROVIDER: S-EPMC4106355 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Publications

Retapamulin 1% Ointment and Clobetasol Propionate 0.05% Foam is More Efficacious than Vehicle Ointment and Clobetasol 0.05% Propionate Foam in the Treatment of Hand/Foot Dermatitis: A Single Center, Randomized, Double-blind Study.

Haddican Madelaine M Linkner Rita V RV Singer Giselle G Jim Shelbi C SC Gagliotti Matthew M Goldenberg Gary G

The Journal of clinical and aesthetic dermatology 20140701 7

<h4>Background</h4>Staphylococcus aureus has been implicated in the pathogenesis of adult hand/foot dermatitis.<h4>Objective</h4>The authors hypothesized that retapamulin 1% ointment and clobetasol propionate 0.05% foam would decrease disease severity in subjects with hand/foot dermatitis and provide a higher clearance of Staphylococcus aureus colonization, when compared to vehicle (placebo) ointment and clobetasol propionate 0.05% foam.<h4>Methods</h4>Adult subjects with moderate to very severe ...[more]

PMID: 25053981

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Project description:The aim of this experiment was to develop an approach for the assessment of immunotoxicity in zebrafish embryos (Danio rerio) using transcriptomic profiling. Clobetasol propionate, a highly potent synthetic corticosteroid, which is known to have immunosuppressive effects on vertebrates including zebrafish, was used for continuous exposure from fertilization until extraction. As immunotoxicity can only be comprehensively assessed when the effect is observed during an acute infection, the embryos were injected with a mixture of different pathogen-associated molecular patterns (PAMPs) consisting of Pam3CSK4 (synthetic lipopeptide), poly(I:C) (synthetic viral dsRNA) and flagellin (isolated from Bacillus subtilis). Functional gene expression analysis from samples obtained by different kinds and combinations of treatments in relation to appropriate controls is used to identify pathways that are upregulated by artificial infection and suppressed by treatment with clobetasol propionate. In a modified version of the zebrafish embryo toxicity test (OECD 236), 20 fertilized eggs were exposed to a sub-lethal concentration (250 nM) of clobetasol propionate for 48 hours under semi-static conditions. The test comprised of three treatments with clobetasol propionate and two negative control (NC) groups and was performed in triplicates. At 46 hours post fertilization (hpf), the eggs were manually dechorinated. At 48 hpf, the embryos were immobilized by anaesthetization using 200 mg/mL tricaine. Using microinjection, 8 nL of the mixed PAMPs (0.33 µg/mL Pam3CSK4, 0.33 µg/mL poly(I:C) and 0.033 µg/mL flagellin) were injected directly into the embryos bloodstream. One of each exposure groups was injected with PAMPs, while another one was injected with ultrapure water to control for effects introduced by the injection process. One control group remained completely untreated. After injection, the embryos were further incubated for 3 hours before 10 embryos were randomly picked for each sample and pooled for RNA and protein extraction with NucleoSpin RNA/Protein kit (Macherey-Nagel). RNA quality was assessed with a 2100 Bioanalyzer system (Agilent) before coding RNA was purified (PolyA selection with TruSeq RNA Library Prep Kit v2) and sequenced on an Illumina HiSeq 4000 System (Illumina) in 50 bp single read mode. Adapter sequences were removed with trimmomatic and sequences were aligned to the D.rerio reference genome GRCz11 with STAR. Counting of feature mapped reads was performed through featureCounts. Library gene count tables were then merged to a single count matrix as input for differential gene expression analysis with DESeq2.

Project description:Background:The clobetasol propionate cream formulations (CLB Cr ) belong to the "strongest" group, and are used widely. In addition, those formulations are often used as a mixture with moisturizer. Recently, we evaluated pharmaceutical properties of the CLB Cr using near infrared (NIR) spectroscopy, and characteristic NIR spectra depending on the formulation were observed. In the present study, we attempted to evaluate the more diverse pharmaceutical properties of CLB Cr , including the stability of mixture of CLB Cr and moisturizer. Method:Pharmaceutical properties of CLB Cr were evaluated using from rheological characteristics, microscopic observation, dye permeability observations, electrical conductivity method, thermogravimetry-differential thermal analysis (TG-DTA) and near infrared (NIR) spectroscopy. Stability of mixtures of CLB Cr and moisturizer were evaluated using from dye method and NIR spectroscopy. Results:The hardness of Dermovate® (DRM), Glydil® (GDL), and Myalone® (MYA) was greater than that of CLB Cr . High concentrations of white beeswax were considered the reason for the hardness of DRM and GDL. On the other hand, the hardness of MYA may be due to the presence of macrogol 6000. After storage of the cream formulations discharged from the tube at room temperature, mass reduction and attenuation of the peak reflecting water of NIR spectroscopy occurred in a time-dependent manner, except for GDL and MYA. Only GDL was shown to be a w/o-type formulation by dye and electric conductivity measurements, which suggested that this was the reason for the lack of changes in the mass or NIR spectrum of samples after storage. In the NIR spectrum of MYA, the peak reflecting water slightly increased in a time-dependent manner, suggesting the water absorption of macrogol 6000. TG-DTA provided curves indicating the presence of water in each formulation, except for MYA, which was consistent with water quantification previously reported. Finally, when mixing the CLB Cr with a moisturizer, in any CLB Cr , the stability of the mixture with w/o-type moisturizer varies greatly depending on the each CLB Cr . Conclusion:Thus, even for cream formulations with the same active pharmaceutical ingredient, pharmaceutical properties and stability of mixture with moisturizer may different significantly.

Project description:BACKGROUND:Cutaneous bacterial infections are common in children and adults and frequently are caused by Staphylococcus aureus (S. aureus). Treatment failures with topical agents are not uncommon and have been shown to be secondary to bacterial resistance. OBJECTIVE:To determine clinical and bacteriological efficacy of retapamulin ointment 1% in treatment of patients with cutaneous bacterial infections caused by methicillin-resistant S. aureus (MRSA) and other bacteria. METHODS:Prospective, nonrandomized, uncontrolled, open label, single center trial conducted between April 2008 and November 2012 that evaluated efficacy of retapamulin ointment 1% in the treatment of impetigo, folliculitis, and other minor soft tissue infections in children and adults. Fifty patients, who presented to a dermatology outpatient clinic and were clinically diagnosed with impetigo, folliculitis, or minor soft tissue infection suitable for treatment with a topical antibiotic, were screened. Thirty-eight patients were enrolled and received treatment: topical retapamulin ointment 1% twice daily for 5 days. Seven patients were MRSA positive and qualified for the primary efficacy population. One patient withdrew due to an adverse event. Clinical and microbiological exams were performed at baseline and follow-up 5 to 7 days later to assess clinical, microbiological, and therapeutic responses. Primary outcome was clinical response at follow-up in primary efficacy population with MRSA isolated as the baseline pathogen. Secondary outcomes included clinical, microbiologic, and therapeutic responses in patients who were culture positive for any species of bacteria. RESULTS:Clinical response at follow-up in the primary efficacy population (MRSA-positive patients) was not sufficiently powered to demonstrate significance; however, outcomes were excellent, with 7 of 7 patients demonstrating clinical success (5 of 7) or clinical improvement (2 of 7) at follow-up. Barring lack of significance due to small total sample size for patients who were culture positive for any species of bacteria (n = 35), overall success rates were favorable for clinical, microbiologic, and therapeutic responses with values of 66%, 97%, and 69%, respectively. Adverse events (AEs) were mild or moderate in severity. No serious AEs were reported. CONCLUSION:Safety profile appears favorable given the low number of AEs. Study design limits conclusions that can be drawn. Nevertheless, this study supports use of topical retapamulin 1% ointment in treatment of cutaneous bacterial infections, particularly those caused by S. aureus, including MRSA.

Dataset Information

Retapamulin 1% Ointment and Clobetasol Propionate 0.05% Foam is More Efficacious than Vehicle Ointment and Clobetasol 0.05% Propionate Foam in the Treatment of Hand/Foot Dermatitis: A Single Center, Randomized, Double-blind Study.

Publications

Retapamulin 1% Ointment and Clobetasol Propionate 0.05% Foam is More Efficacious than Vehicle Ointment and Clobetasol 0.05% Propionate Foam in the Treatment of Hand/Foot Dermatitis: A Single Center, Randomized, Double-blind Study.

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