Researchers reported the safety and efficacy of deucravacitinib over 2 years in patients with chronic plaque PsO. The most frequently reported AEs were nasopharyngitis, URTI, and COVID-19.

Week 16 coprimary endpoints of PASI 75 response and sPGA score improved in the majority of patients and was overall maintained through week 52. Deucravacitinib therapy was also associated with a low AE rate. This study presented results from the POETYK PSO-4 trial on the safety and efficacy of deucravacitinib 6mg QD in Japanese patients with psoriasis.

This Phase 3 study by Strober, et al. reports deucravacitinib superiority to placebo and apremilast in patients with PsO. The authors found that deucravacitinib had significantly higher rates of PASI 75 and sPGA achievement than placebo and deucravacitinib.

Deucravacitinib has shown efficacy in the treatment of both skin and joint disease. As a result, researchers sought to compare the efficacy and safety of deucravacitinib versus placebo and apremilast in adults with moderate to severe plaque PsO.

September 2023

Phase IIb study of brepocitinib in patients with PsA concludes that treatment with brepocitinib 30 mg and 60 mg QD, was superior to placebo at reducing signs and symptoms of PsA and was well-tolerated over 52 weeks.

December 2022

June 2022

In this study Mease, et al. aimed to evaluate the efficacy and safety of deucravacitinib in patients with active PsA. Treatment with the selective TYK2i deucravacitinib was well tolerated and resulted in greater improvements than placebo in ACR-20 as well as Multiplicity-controlled secondary endpoints and other exploratory efficacy measures in patients.

October 2020

Preclinical characterisation of itacitinib, a Novel Selective Inhibitor of JAK1, for the Treatment of Inflammatory Diseases

European Journal of Pharmacology. 2020 Oct 15;885:173505. doi: 10.1016/j.ejphar.2020.173505

Itacitinib is an orally active JAK inhibitor and effectively delayed disease onset, reduced symptom severity, and accelerated recovery of inflammatory diseases in mouse models. Covington M et al demonstrated itacitinib’s high selectivity for JAK 1, its inhibition on IL-2 induced T cell proliferation and JAK/STAT signalling, its ability to also inhibit of the JAK/STAT pathway in response to IL-6 stimulation, and its effect on rat adjuvant induced arthritis model. The study used recombinant enzym...

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September 2019

Different JAKinibs modulated distinct cytokine pathways to varying degrees, and no agent potently or continuously inhibited an individual cytokine signalling pathway throughout the dosing interval. This study aimed to compare the in vitro cellular pharmacology of BARI, TOF and UPA across relevant leukocyte subpopulations, coupled with their in vivo PK, to determine their effects on distinct cytokine pathways. Peripheral blood mononuclear cells from healthy donors were incubated with different JA...

July 2016

Peficitinib (ASP015K) is a novel orally bioavailable JAK inhibitor in development for the treatment of RA. It inhibits JAK1, JAK2, JAK3 and Tyk2 enzyme activities and has moderate selectivity or JAK3 inhibition.Here the authors report the findings of a 12-week, randomized, double-blind, placebo-controlled phase IIb study evaluating efficacy, safety and dose response of peficitinib (25, 50, 100, or 150 mg) as once-daily oral monotherapy in Japanese patients with moderate to severe RA. The primar...