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Pimecrolimus 1% cream for mild-to-moderate atopic dermatitis: a systematic review and meta-analysis with a focus on children and sensitive skin areas

Luger T, Chu CY, Elgendy A, Ibrahim SBBK, Murashkin N, Ranjan S, et al.

Eur J Dermatol, 2023 Oct 01;33(5):474-486.
PMID: 38297923 DOI: 10.1684/ejd.2023.4556

This systematic literature review (SLR) and meta-analysis assessed the efficacy and safety of pimecrolimus vs other topical treatments in patients with mild-to-moderate atopic dermatitis (AD), focusing on children and sensitive skin areas. An SLR was conducted in MEDLINE, Embase and Cochrane Library databases on January 15th, 2020, to identify randomized controlled trials (RCTs) with pimecrolimus as a study arm. Another SLR performed on October 5th, 2020 identified RCTs with a crisaborole study arm. Direct pair-wise meta-analysis was used to compare pimecrolimus with vehicle, tacrolimus or topical corticosteroids (TCS; n = 27 studies). Outcomes included Investigator's Global Assessment (IGA) score 0/1 up to week 6 and adverse events. Pimecrolimus was more efficacious than vehicle in achieving IGA 0/1 up to week 6 in children, and similar safety profiles were observed with pimecrolimus and vehicle in children and the mixed population, including on sensitive skin. No significant differences in efficacy and safety were observed between pimecrolimus and tacrolimus 0.03%. Efficacy and safety were similar for pimecrolimus and mild medium potency TCS; mildly potent steroids caused transient epidermal thinning in sensitive skin areas (not seen with pimecrolimus). Pimecrolimus can be considered as a first-line option for mild-to-moderate AD, particularly in children and sensitive skin areas.
Fulltext Pimecrolimus for the Treatment of Atopic Dermatitis in Infants: An Asian Perspective

Chu CY, Yao TC, Shih IH, Yang CY, Chin CL, Ibrahim SBBK, et al.

Dermatol Ther (Heidelb), 2023 Mar;13(3):717-727.
PMID: 36735214 DOI: 10.1007/s13555-022-00886-9

Atopic dermatitis (AD) is a common chronic, multisystem inflammatory skin disease in pediatric patients. There has been an increase in the incidence of AD in the pediatric population of the Asia-Pacific region. Studies have shown that genetic, epigenetic, environmental and cultural factors may lead to differences in the clinical manifestation and prevalence of AD between races. Early treatment of AD is necessary to prevent the atopic march leading to comorbidities such as asthma and allergic rhinitis. Topical corticosteroids (TCS) are used as first-line therapy for the treatment of AD, but their long-term usage poses a risk to the patient's health. Pimecrolimus (1%) is a topical calcineurin inhibitor (TCI) that is indicated for the treatment of mild to moderate AD. Pimecrolimus has no apparent increase in adverse events compared to TCS, and it causes less of a burning sensation than tacrolimus. The safety and efficacy of pimecrolimus has been established through various clinical trials; yet, in many Asian countries, the use of pimecrolimus in infants is still restricted due to safety concerns. Based on the available evidence, the expert panel recommends pimecrolimus in infants between 3 months and 2 years of age in the Asian population.
Fulltext Epidemiology of adult patients with atopic dermatitis in AWARE 1: A second international survey

Maspero J, De Paula Motta Rubini N, Zhang J, Sanclemente G, Amador JR, El Sayed MH, et al.

World Allergy Organ J, 2023 Mar;16(3):100724.
PMID: 37033301 DOI: 10.1016/j.waojou.2022.100724

BACKGROUND: There are gaps in our understanding of the epidemiology of atopic dermatitis (AD) in adults.
OBJECTIVE: To evaluate the prevalence and severity of AD in adults from countries/regions within Asia, Eurasia, Latin America, Middle East, and Russia.
METHODS: This international, web-based survey was performed in Argentina, Brazil, China, Colombia, Egypt, Hong Kong, Israel, Malaysia, Mexico, Russia, Kingdom of Saudi Arabia (KSA), Singapore, Taiwan, Thailand, Turkey, and United Arab Emirates. Questionnaires were sent to adult members of online respondent panels for determination of AD and assessment of severity. A diagnosis of AD required respondents to meet the modified United Kingdom (UK) Working Party criteria and to self-report they had a physician diagnosis of AD. Severity of AD was determined using Patient-Oriented Scoring of Atopic Dermatitis (PO-SCORAD), Patient-Oriented Eczema Measure (POEM), and Patient Global Assessment (PGA).
RESULTS: Among respondents by country/region the prevalence of AD ranged from 3.4% in Israel to 33.7% in Thailand. The prevalence was generally higher in females versus males. Severity varied by scale, although regardless of scale the proportion of respondents with mild and moderate disease was higher than severe disease. PGA consistently resulted in the lowest proportion of severe AD (range 2.4% China - 10.8% Turkey) relative to PO-SCORAD (range 13.4% China - 41.6% KSA) and POEM (range 5.1% China - 16.6% Israel).
CONCLUSIONS: This survey highlights the importance of AD in adults, with high prevalence and high morbidity among respondents and emphasizes that AD is not just a disease of childhood-there is disease persistence and chronicity in adults.
The Medication Risk of Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis in Asians: The Major Drug Causality and Comparison With the US FDA Label

Wang YH, Chen CB, Tassaneeyakul W, Saito Y, Aihara M, Choon SE, et al.

Clin. Pharmacol. Ther., 2019 01;105(1):112-120.
PMID: 29569740 DOI: 10.1002/cpt.1071

Specific ethnic genetic backgrounds are associated with the risk of Stevens-Johnson syndrome / toxic epidermal necrolysis (SJS/TEN) especially in Asians. However, there have been no large cohort, multiple-country epidemiological studies of medication risk related to SJS/TEN in Asian populations. Thus, we analyzed the registration databases from multiple Asian countries who were treated during 1998-2017. A total 1,028 SJS/TEN cases were identified with the algorithm of drug causality for epidermal necrolysis. Furthermore, those medications labeled by the US Food and Drug Administration (FDA) as carrying a risk of SJS/TEN were also compared with the common causes of SJS/TEN in Asian countries. Oxcarbazepine, sulfasalazine, COX-II inhibitors, and strontium ranelate were identified as new potential causes. In addition to sulfa drugs and beta-lactam antibiotics, quinolones were also a common cause. Only one acetaminophen-induced SJS was identified, while several medications (e.g., oseltamivir, terbinafine, isotretinoin, and sorafenib) labeled as carrying a risk of SJS/TEN by the FDA were not found to have caused any of the cases in the Asian countries investigated in this study.
Fulltext A concept for integrated care pathways for atopic dermatitis-A GA2 LEN ADCARE initiative

Zuberbier T, Abdul Latiff A, Aggelidis X, Augustin M, Balan RG, Bangert C, et al.

Clin Transl Allergy, 2023 Sep;13(9):e12299.
PMID: 37746794 DOI: 10.1002/clt2.12299

INTRODUCTION: The integrated care pathways for atopic dermatitis (AD-ICPs) aim to bridge the gap between existing AD treatment evidence-based guidelines and expert opinion based on daily practice by offering a structured multidisciplinary plan for patient management of AD. ICPs have the potential to enhance guideline recommendations by combining interventions and aspects from different guidelines, integrating quality assurance, and describing co-ordination of care. Most importantly, patients can enter the ICPs at any level depending on AD severity, resources available in their country, and economic factors such as differences in insurance reimbursement systems.
METHODS: The GA2 LEN ADCARE network and partners as well as all stakeholders, abbreviated as the AD-ICPs working group, were involved in the discussion and preparation of the AD ICPs during a series of subgroup workshops and meetings in years 2020 and 2021, after which the document was circulated within all GAL2 EN ADCARE centres.
RESULTS: The AD-ICPs outline the diagnostic procedures, possible co-morbidities, different available treatment options including differential approaches for the pediatric population, and the role of the pharmacists and other stakeholders, as well as remaining unmet needs in the management of AD.
CONCLUSION: The AD-ICPs provide a multidisciplinary plan for improved diagnosis, treatment, and patient feedback in AD management, as well as addressing critical unmet needs, including improved access to care, training specialists, implementation of educational programs, assessment on the impact of climate change, and fostering a personalised treatment approach. By focusing on these key areas, the initiative aims to pave the way for a brighter future in the management of AD.