INTRODUCTION: Since 2016, several therapies have been approved for treating atopic dermatitis (AD) in Singapore, including biologics, oral Janus kinase (JAK) inhibitors and topical crisaborole. This study supplements the 2016 Singapore treatment guidelines for AD, focusing on newer therapies for moderate-to-severe disease, while revisiting older treatment regimens to accommodate changes in knowledge and practice. METHOD: A modified Delphi panel was held, led by 2 co-chairs. The voting expert panel consisted of 12 dermatologists experienced in managing AD in Singapore. Delphi survey rounds were conducted between 24 July and 27 October 2023. Panellists indicated their agreement with drafted statements using a 5-point Likert scale. Consensus was defined as ≥80% agreement. An expert meeting was held to facilitate the consensus process between rounds 1 and 2 of voting. RESULTS: All expert panellists participated in both survey rounds, with a 100% response rate. Thirty-nine statements, classified into general principles, conventional treatments, biologics and JAK inhibitors, were proposed. Of these, 27 statements reached consensus at the end of round 1. After the expert meeting, 17 statements were included in round 2, of which 16 statements reached consensus. One statement did not reach consensus. Key updates are the inclusion of dupilumab and JAK inhibitors as potential first-line treatments for moderate-to-severe AD, in certain populations. CONCLUSION This modified Delphi study generated consensus among Singapore dermatology experts, to update treatment guidelines in moderate-to-severe atopic dermatitis. The consensus statements developed are intended to supplement the 2016 Singapore treatment guidelines for AD. Further revisions may be required when new evidence and/or treatments become available.
Dermatitis, Atopic/drug therapy* ; Humans ; Singapore ; Janus Kinase Inhibitors/therapeutic use* ; Biological Products/therapeutic use* ; Delphi Technique ; Consensus ; Antibodies, Monoclonal, Humanized/therapeutic use* ; Severity of Illness Index ; Bridged Bicyclo Compounds, Heterocyclic/therapeutic use* ; Dermatologic Agents/therapeutic use* ; Practice Guidelines as Topic ; Pyrimidines/therapeutic use* ; Boron Compounds

The significance of patient-reported outcomes (PROs) is increasingly being acknowledged and quality of life (QOL) has become an integral element of the assessment of overall burden of disease. Psoriasis has been known for its major impact on patients' QOL and various generic, dermatology-specific and psoriasis-specific self-administered psychometric instruments have been used over the years to assess the QOL of psoriasis patients. However, the Dermatology Life Quality Index (DLQI) is the most widely used QOL measure among these measures in psoriasis-related clinical trials. A number of topical and systemic treatments have been used in the management of psoriasis and lately biologics have emerged as a new and promising treatment modality for difficult-to-treat psoriasis. The evidence on the efficacy of these agents has been growing dramatically with QOL being used as one of the primary outcome measures in many clinical trials. The aim of this paper is to give an overview of the use of the DLQI as an outcome measure for assessing the QOL impact of biologics on psoriasis patients. Furthermore, the efficacy of five commonly used biologics has been compared in terms of their ability to improve the QOL assessed by the DLQI. This review has revealed that there is a variation in the efficacy of various biologics in terms of QOL improvement with the mean reduction in the DLQI scores being highest for ustekinumab 90 mg (mean DLQI score reduction=9.5), followed by infliximab (8.5), etanercept 50 mg, twice a week (7.7), adalimumab (6.3), and alefacept (4.0).
Biological Products ; therapeutic use ; Clinical Trials as Topic ; Dermatologic Agents ; therapeutic use ; Dermatology ; Humans ; Psoriasis ; drug therapy ; Quality of Life

Psoriatic arthritis is an inflammatory joint disease associated with psoriasis. Due to difficulty for early diagnosis and lack of effective therapy, the disease leads to chronic course and frequent relapse. Patients may suffer from ankylosis,disability and even death. The past treatments neither can control the disease effectively, nor be capable of inhibiting the development of structural joint damage. Based on the current psoriasis pathogenesis, novel biologics have been developed,which can aim the specific targets, resulting in more effective and safer management for psoriatic arthritis.
Adalimumab ; Anti-Inflammatory Agents, Non-Steroidal ; therapeutic use ; Antibodies, Monoclonal ; therapeutic use ; Antibodies, Monoclonal, Humanized ; Arthritis, Psoriatic ; drug therapy ; etiology ; Dermatologic Agents ; therapeutic use ; Etanercept ; Humans ; Immunoglobulin G ; therapeutic use ; Receptors, Tumor Necrosis Factor ; therapeutic use ; Recombinant Fusion Proteins ; therapeutic use

Henoch-Sch nlein purpura is an acute, self-limited vasculitis syndrome which shows characteristic skin, joint, renal and gastrointestinal manifestations. It is common in childhood and may also occur in adults with fatal complications such as nephritis and gastrointestinal bleeding. We experienced a case of a 20-year-old woman who presented with palpable purpura and severe arthritis. The histopathologic examination of the skin revealed leukocytoclastic vasculitis with perivascular deposition of IgA and she was diagnosed with Henoch-Sch nlein purpura. Despite treatment with prednisolone for one month, she had more aggravated purpura and fatal gastrointestinal bleeding. The symptoms were improved shortly by cyclophosphamide pulse therapy with plasmapheresis but symptoms were aggravated and symmetric mononeuropathy of the ulnar nerve developed. She was treated with 400 mg/day of thalidomide and symptoms were improved. We herein report a case of Henoch-Sch nlein purpura successfully treated with thalidomide which was refractory to prednisolone, immunosuppressive drugs and plasmapheresis.
Adult ; Dermatologic Agents/*therapeutic use ; Female ; Human ; Purpura, Schoenlein-Henoch/*drug therapy ; Thalidomide/*therapeutic use