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- Guselkumab for the treatment of psoriasis - evidence to datePublication . Nogueira, Miguel; Torres, T.Psoriasis is a chronic, immune-mediated, inflammatory, and debilitating skin disease with significant impact on patients' quality of life. Its pathogenesis is complex and not yet fully understood. However, the IL-23/IL-17 axis is currently considered the main pathogenic pathway in psoriasis. Guselkumab is a fully human immunoglobulin G1 λ (IgG1λ) monoclonal antibody (mAb) that binds to the p19 subunit of IL-23. It is the first of its class, already approved by the US Food and Drug Administration (FDA), as well as the European Medicines Agency (EMA) for the treatment of adult patients with moderate-to-severe plaque psoriasis who are candidates for either systemic therapy or phototherapy. Several clinical trials have demonstrated potential benefits of guselkumab over other already approved immunomodulators in terms of safety and efficacy. The results of the head-to-head trial ECLIPSE were recently released and are addressed in this review. They contribute to the increasing confidence in guselkumab, demonstrating great potential for long-term treatment of psoriasis. However, further long-term data and additional comparative studies will be essential for positioning guselkumab in the therapeutic armamentarium for psoriasis.
- The Importance of Patch Testing in Anogenital Dermatitis: Ten-Year Experience of a Tertiary Referral Center in Northern PortugalPublication . Reis, Joel; Marques, Maria Luís; Nogueira, Miguel; Selores, Manuela; Lobo, Inês
- Psoriasis, biologic therapy, and the pandemic of the 21st centuryPublication . Nogueira, Miguel; Vender, Ron; Torres, TiagoThe pandemic known as coronavirus disease-19 (COVID-19) has quickly spread worldwide, with a significant impact on lives all over the world. The complexity related to the new coronavirus and the clinical syndrome it causes is not yet fully understood. The impact of COVID-19 on patients with psoriasis under biologic agents is continuously being observed in this rapidly changing pandemic. A case-by-case evaluation must be made by dermatologists, and the final decision should be discussed and decided by both the patient and the specialist. Observations reveal that immunosuppressive therapy may have a role in the treatment of this virus, placing emphasis on the scenario of safety through maintenance of therapy with biologic agents, especially when there are no signs or symptoms related to the infection or contact with an infected patient.