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Psoriatic skin molecular and histopathologic profiles after treatment with risankizumab versus ustekinumab - 06/06/19

Doi : 10.1016/j.jaci.2018.11.042 
Sudha Visvanathan, PhD a, , Patrick Baum, PhD b, Richard Vinisko, PhD a, Ramona Schmid, PhD b, Mary Flack, MD a, Bojan Lalovic, PhD a, Oliver Kleiner, PhD b, Judilyn Fuentes-Duculan, MD c, Sandra Garcet, PhD c, Justin W. Davis, PhD d, Kristie M. Grebe, PhD e, Jay S. Fine, PhD a, Steven J. Padula, MD f, James G. Krueger, MD, PhD c
a Boehringer Ingelheim Pharmaceuticals, Ridgefield, Conn 
b Boehringer Ingelheim Pharma GmbH & Co KG, Biberach, Germany 
c Laboratory for Investigative Dermatology, Rockefeller University, New York, NY 
d AbbVie, North Chicago, Ill 
e AbbVie, Worcester, Mass 
f Boehringer Ingelheim Pharma GmbH & Co KG, Ingelheim, Germany 

Corresponding author: Sudha Visvanathan, PhD, Boehringer Ingelheim Pharmaceuticals, 900 Ridgebury Rd, Ridgefield, CT 06877.Boehringer Ingelheim Pharmaceuticals900 Ridgebury RdRidgefieldCT06877

Abstract

Background

IL-23 contributes to the activation, maintenance, and proliferation of TH17 cells and plays a major role in psoriasis pathophysiology. IL-23p19 inhibition with risankizumab resulted in superior clinical responses in patients with psoriasis compared with ustekinumab (dual IL-12/IL-23 inhibitor), but comparative molecular effects have not been established.

Objective

We investigated the similarities and differences in molecular and histopathologic profiles in skin lesions from patients with psoriasis receiving risankizumab versus ustekinumab at an early time point.

Methods

Lesional skin biopsy samples from 81 patients with moderate-to-severe plaque psoriasis participating in 2 different studies (a phase I risankizumab study and a phase II study of risankizumab vs ustekinumab) were analyzed by using histopathology, immunohistochemistry, and RNA sequencing.

Results

Risankizumab induced a rapid decrease in levels of proteins and transcriptomic biomarkers associated with the IL-23 pathway, which were maintained through 8 weeks. At week 4, risankizumab decreased histopathologic expression of biomarkers, including K16, Ki67, CD3, lipocalin-2, CD11c, dendritic cell lysosome-associated membrane glycoprotein, β-defensin 2, and S100A7; global histopathologic scoring revealed that 54% and 69% of patients treated with 90 or 180 mg of risankizumab, respectively, were graded as experiencing “excellent improvement” versus 29% of patients treated with ustekinumab. At week 4, there was a common decrease in expression of 2645 genes expressed in lesional skin between patients receiving risankizumab and ustekinumab and a significant decrease in 2682 genes unique to risankizumab treatment. Risankizumab more strongly downregulated expression of genes associated with keratinocytes, epidermal cells, and monocytes, versus ustekinumab.

Conclusion

Risankizumab demonstrated more pronounced changes in the molecular and histopathologic profile of psoriatic skin lesions compared with ustekinumab at week 4.

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Key words : Risankizumab, ustekinumab, IL-23, IL-12, IL-17, psoriasis, biomarkers

Abbreviations used : BLIMP-1, BSA, DC, DC-LAMP, DEG, FDR, IL-17R, LCN, PASI, RHE, RNA-seq


Plan


 Supported by Boehringer Ingelheim. The sponsor was involved in the study design, collection, analysis, and interpretation of the data.
 Disclosure of potential conflict of interest: S. Visvanathan, P. Baum, R. Vinisko, R. Schmid, M. Flack, B. Lalovic, O. Kleiner, J. S. Fine, and S. J. Padula report being employed by Boehringer Ingelheim during the conduct of the study. J. W. Davis and K. M. Grebe report being employed by AbbVie during the conduct of the study. J. G. Krueger reports grants and other from Boehringer Ingelheim during the conduct of the study; personal fees from AbbVie, Baxter, Biogen, Delenex, Kineta, Sanofi, Serono, and Xenoport and grants from Amgen, BMS, Dermira, Innovaderm, Janssen, Kadmon, Kyowa, Lilly, Merck, Novartis, Paraxel, and Pfizer outside the submitted work. The rest of the authors declare that they have no relevant conflicts of interest to declare.


© 2019  The Authors. Publié par Elsevier Masson SAS. Tous droits réservés.
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Vol 143 - N° 6

P. 2158-2169 - juin 2019 Retour au numéro
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