Review and analysis of biologic therapies currently in phase II and phase III clinical trials for atopic dermatitis

Biologic medications are recent advances that have clinical significance in the treatment of moderate-to-severe AD. A systemic literature review was performed to examine the efficacy and safety of biologic therapies currently in phase II and phase III of clinical trials for moderate-to-severe AD. Our team searched the databases, PubMed, Google Scholar, and ClinicalTrials.gov, on September 2019 for studies pertaining to the use of biologic drugs in AD. Key words included each drug (lebrikizumab, tralokinumab, fezakinumab, etokimab, nemolizumab, tezepelumab, and GBR 830) or 'biologic drugs' or 'immunotherapies' combined with 'atopic dermatitis.' References within retrieved articles were also reviewed to identify potentially missed studies. A total of 19 articles were included in this review. Lebrikizumab, tralokinumab, fezakinumab, nemolizumab, and GBR 830 lead to statistically significant improvements in disease severity and multiple endpoint outcome scores. Tezepelumab and etokimab, however, did not demonstrate statistically significant changes in primary outcome endpoints. Further assessment of tezepelumab and etokimab are needed to assess their safety and efficacy in patients with moderate-to-severe AD. Tralokinumab, lebrikizumab, fezakinumab, nemolizumab, and GBR 830 are effective treatment options for adults with moderate-to-severe AD, but further large-scale studies are needed to confirm their efficacy as monotherapy in children with moderate-to-severe AD.