Journal Scan

Psoriasis Journal Scan: October 2019


Psoriasis Associated with Tumor Necrosis Factor-Alpha Inhibitors in Children with Inflammatory Diseases.

Buckley, L. H., Xiao, R. , Perman, M. et al. Arthritis Care Res . 2019 Oct 23.

The study aimed to estimate the incidence rate (IR) of psoriasis in children with inflammatory bowel disease (IBD), juvenile idiopathic arthritis (JIA), and chronic noninfectious osteomyelitis (CNO) with tumor necrosis factor‐alpha inhibitor (TNFi) exposure as compared to those without TNFi exposure and to the general pediatric population. Researchers found that children with IBD, JIA, and CNO had an increased rate of psoriasis compared to the general pediatric population, with the highest rate in those with TNFi exposure.

Skin Patterning in Psoriasis by Spatial Interactions between Pathogenic Cytokines.

Ringham, L, Prusinkiewicz, P, Gniadeck R. iScience. 2019 Oct 25;20:546-553.

This study shows that all known patterns of psoriasis, a common inflammatory skin disease, can be explained in terms of reaction-diffusion. Researchers constructed a computational model based on the known interactions between the main pathogenic cytokines: interleukins IL-17 and IL-23, and tumor necrosis factor TNF-α. Simulations revealed that the parameter space of the model contained all classes of psoriatic lesion patterns. They also faithfully reproduced the growth and evolution of the plaques and the response to treatment by cytokine targeting. Thus the pathogenesis of inflammatory diseases, such as psoriasis, may be readily understood in the framework of the stimulatory and inhibitory interactions between a few diffusing mediators.

SEfficacy of Secukinumab for Plaque Psoriasis in a Patient on Hemodialysis.

Ikuma D, Oguro M, Hoshino J, et al. CEN Case Rep . 2019 Oct 25.

The case report discusses the safety and efficiency of secukinumab on a 60-year-old patient on hemodialysis. The psoriasis area and severity index (PASI) score decreased from 49.8 to 14.8 after 2 weeks and to 0 after 6 weeks, with remission being maintained after 28 months. No adverse reactions were seen. This case indicates that secukinumab may be effective for severe psoriasis in patients on hemodialysis for end-stage renal disease.

Comparison of pharmacokinetics, safety and tolerability of secukinumab administered subcutaneously using different delivery systems in healthy volunteers and in psoriasis patients.

Bruin, G, Hockey, H‐UP, La Stella, P, et al. Br J Clin Pharmacol . 2019.

The aim of the study was to compare the pharmacokinetics, safety and tolerability of secukinumab with different devices for subcutaneous (s.c.) administration of 2 mL. Collective evidence from both studies demonstrated that 2 mL injections of secukinumab into the abdomen or thigh using different devices resulted in comparable PK characteristics and were all well tolerated without noticable local reactions.

Dual biologic therapy for recalcitrant psoriasis and psoriatic arthritis

Thibodeaux, Quinn et al. JAAD Case Reports , Volume 5, Issue 10, 928 – 930.

This study presents a patient with severe psoriatic skin and joint disease who has been treated with multiple combinations of dual biologic therapy, including ustekinumab plus etanercept for 12 months, secukinumab plus etanercept for 6 months, and guselkumab plus etanercept for 15 months. Throughout the patient's treatment, adverse events only occurred with the ustekinumab plus etanercept combination and consisted of an increased incidence of urinary tract and upper respiratory infections, including a hospitalization for H2N1 flu.

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