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The Efficacy of Colloidal Oatmeal Cream 1% as Add-on Therapy in the Management of Chronic Irritant Hand Eczema: A Double-Blind Study

Authors Sobhan M, Hojati M, Vafaie SY, Ahmadimoghaddam D, Mohammadi Y, Mehrpooya M

Received 15 January 2020

Accepted for publication 27 February 2020

Published 25 March 2020 Volume 2020:13 Pages 241—251


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Jeffrey Weinberg

Mohammadreza Sobhan,1 Mahsa Hojati,2 Seyed-Yaser Vafaie,3 Davoud Ahmadimoghaddam,4 Younes Mohammadi,5 Maryam Mehrpooya2

1Psoriasis Research Center, Department of Dermatology, Farshchian Hospital, Hamadan University of Medical Sciences, Hamadan, Iran; 2Department of Clinical Pharmacy, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran; 3Department of Pharmaceutics, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran; 4Department of Pharmacology and Toxicology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran; 5Modeling of Noncommunicable Diseases Research Center, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran

Correspondence: Maryam Mehrpooya
Department of Clinical Pharmacy, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmideh Ave, Hamadan 6517838678, Iran
Tel +98 81 3821 868
Fax +98-8138381591

Background: Irritant contact dermatitis (ICD) is the most frequent cause of hand eczema (HE). There is promising evidence with the use of topical oatmeal compounds in the management of inflammation- and itch-responses associated with diverse dermatologic conditions. This study aimed to evaluate the clinical benefit of colloidal oatmeal cream in the management of chronic irritant HE.
Methods: From October 2018 to November 2019, 79 patients with diagnosis of chronic irritant HE were allocated into either intervention or control groups by block randomization method. Besides fluocinolone 0.025% ointment for the first 2 weeks of treatment period, patients in the intervention and control groups were asked to use colloidal oatmeal 1% cream or base cream for additional 4 weeks as monotherapy. Changes in the HE severity based on the hand eczema severity index (HESCI) score, pruritus severity based on the visual analogue scale (VAS), and impact of skin disorder on patients quality of life based on the Dermatology Life Quality Index (DLQI) from baseline to weeks 2, 4, and 6 were assessed in the study groups.
Results: Fifty subjects, 26 in intervention and 24 in control, completed the course of the study. The results indicated, though relatively comparable decrease in mean HESI and VAS scores was observed in both groups by the end of week 2, thereafter until end of the study a non-return of symptoms to baseline conditions was observed in the intervention group, while there was a significant return of symptoms to baseline conditions in the control group (p value< 0.001 in both conditions). Further, a noticeable improvement in the DLQI score was seen in the intervention group compared with the control group (p value< 0.001).
Conclusion: Findings demonstrate that colloidal oatmeal, a natural product with proven barrier protection, moisturization, anti-inflammatory, and soothing properties, can have ameliorative effects on eczema severity symptoms in patients with chronic irritant HE.

Keywords: hand eczema, irritant contact dermatitis, colloidal oatmeal, Hand Eczema Severity Index; Dermatology Life Quality Index

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