How Can We Change the Complexion of Acne and Rosacea? openaccess articles

June 2017 | Volume 16 | Issue 6 | Editorials | 531 | Copyright © 2017

Del Rosso, J.Q.

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DelRossoIn the field of psoriasis, advances in our understanding of immune dysregulation and pathophysiologic pathways have led to a revolution of therapies that have dramatically improved the lives of a myriad of affected individuals. The major advances have been with injectable biologic agents, although newer oral and topical agents have also been made available or are under formal development. More recently, a similar trend has emerged with atopic dermatitis (AD) with the release of a novel biologic agent and topical agent over the past few months, and other agents affecting specific pathophysiologic pathways that appear to correlate with clinical manifestations of AD. Such increased understanding of mechanisms of disease and advances in treatment are welcome among clinicians in dermatology as they facilitate optimal short-term and long-term care of patients.

So, what is happening recently with true advances in understanding of pathophysiology and clinical management of acne and rosacea that are currently being researched? The pathophysiology of rosacea and of acne are constantly under investigative scrutiny in search of understanding pathways of disease formation that can be correlated with more targeted therapeutic approaches, both with monotherapy and with combination regimens.1,2 Although we are not nearly at a stage of developing injectable biologic agents for acne or rosacea, there are some agents that address different modes of action or alter drug delivery from oral to topical formulations.3 In acne, agents under formal development that incorporate unique modes of action (MOA) include a topical nitric oxide-releasing gel that exhibits anti-inflammatory and antimicrobial properties, and olumacostat glasaretil, an acetyl CoA carboxylase inhibitor that modulates sebum formation. Topical minocycline, under evaluation as a foam and also as a biphasic gel, may hopefully offer delivery of minocycline to skin for acne, and possibly for rosacea, with avoidance of systemic exposure including the gastrointestinal (GI) tract microbiome. The development of therapies that reduce or avoid contribution to antibiotic resistance and improvements in prevention and treatment of acne scarring are areas of major focus in both acne and rosacea.4-6The following highlights some areas of interest and/or observation that may alter how we currently approach these two common, inflammatory facial dermatoses. Acne will be addressed first followed by rosacea. Treat Acne Beyond Visible Severity. In mild to moderate acne, it is important to magnify the clinical extent of acne lesions beyond what is seen. This correlates with utilizing more aggressive therapy to cover ares of disease that exceed the severity of acne that is seen during the exam visit. In addition, the presence of acne scarring warrants the need for more aggressive therapy, even when the current severity of active acne is mild.1 Unless the patient is considered a candidate for oral isotretinoin, it is important to optimize treatment with a rational combination therapy approach.7,8 Recognize the Importance of Subclinical Inflammation in Acne. In patients with acne-affected skin, subclinical in ammation is present prior to the emergence of both visibly non-inflammatory (comedonal) and visibly in ammatory lesions.1 It is important to consider use of combination topical therapy to address both antimicrobial effects and multiple anti-in ammatory activities.1,7,8 Evaluate Duration of Antibiotic Use in Acne. Data from one study has demonstrated that acne was treated for at least 6 months, and at least 12 months, in approximately two-thirds of patients and one-third of patients, respectively, before progressing to use of oral isotretinoin.9 It has been suggested that oral antibiotic use be limited to the shortest duration feasible in order to reduce the risks associated with antibiotic resistance.4,5 The threshold for use of oral isotretinoin may need to be lowered in many patients in order to reach this goal and to achieve optimal clearance of persistent inflammatory acne. Categorize and Manage Rosacea Based on Current Clinical Manifestations. The time has come to move beyond the categorization of rosacea by subtypes.10,11 Individual patients may respond differently to specific triggers, and clinical presentations of rosacea exhibit marked interpatient variability. As a result, it is important to correlate therapy for rosacea with individual features that are 

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