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IL-23

ICYMI: 2023 EULAR Psoriatic Arthritis Recommendations

EULAR has updated its treatment recommendations from the prior 2019 guidelines, since there have been several newly developed agents. The updated guidance includes 7 overarching principles and 11 recommendations regarding treatment strategy and pharmacological therapies.

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ICYMI: Enthesitis, Synovitis, and Tenosynovitis in Psoriatic Arthritis

An ultrasound study suggests that enthesitis is associated with both synovitis and tenosynovitis in patients with Psoriatic arthritis (PsA).

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FDA has approved risankizumab (Skyrizi) to treat adults with moderately to severely active ulcerative colitis (UC), making it the IL-23 inhibitor approved for UC. Approval is based on two large phase 3 clinical trials (COMMAND, INSPIRE) https://t.co/wNSZdWWDO1 https://t.co/mlwxIrdUD2
Dr. John Cush @RheumNow( View Tweet )

Future Big BiTEs (6.28.2024)

Dr. Jack Cush reviews the news, journal articles and regulatory announcements from the past week on RheumNow.com.

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EULAR Abstract Archive RISK OF PsA IN PATIENTS WITH PsO UNDERGOING bDMARDs GLOBAL POPULATION STUDY (TRINETX) 870,000 PsO pts without PsA treated with bDMARDS - Il12/23i and Il23i. 30-37% lower PsA developed than comparators https://t.co/XWnzuVMlbn @RheumNow #EULAR2024

Peter Nash @drpnash( View Tweet )

1200 PsA pts 6 countries IL17is as effective as TNFi and JAK despite more failed bDMARDs and monotherapy & faster onset action than IL23s ⁦@RheumNow⁩ #EULAR2024 https://t.co/SM5CA7KUvd
Peter Nash @drpnash( View Tweet )
500+ pts AxSPA No difference in drug discontinuation between IL-17i, TNFi, IL23i over time Adjusted for CRP, co-medication w/ MTX + classic covariates IL-17i and IL-23i had experienced a higher number bDMARD failures #EULAR2024 POS0259 @RheumNow https://t.co/F3B6uXyAca
Aurelie Najm @AurelieRheumo( View Tweet )

EULAR 2024 - Day 1 Report

Wednesday was Day One at EULAR 2024 in Vienna. While the day was a slow start, the poster halls and auditoriums quickly filled with thousands of rheumatologists, eager to reunite at this international educational forum. Below are a few of my favorites from Day 1.

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Can we prevent psoriatic arthritis?

Psoriatic arthritis (PsA) can affect up to 30% of patients with psoriasis (PsO). Understanding the factors that predispose patients with PsO who progress to PsA is the first step in understanding how early interventions in PsO may augment the progression to PsA. At #EULAR2024, there are a few

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RISK OF PsA IN PATIENTS WITH PsO UNDERGOING bDMARDs GLOBAL POPULATION STUDY (TRINETX) 870,000 PsO pts without PsA treated with bDMARDS - Il12/23i and Il23i. 30-37% lower PsA developed than comparators @rheumnow #EULAR2024

Peter Nash @drpnash( View Tweet )

Biologic-treated Psoriasis has Less Progression to Psoriatic Arthritis

A single center study demonstrates that biologic treatment of psoriasis (PsO) significantly reduces the likelihood of psoriatic arthritis (PsA) development; suggesting a role for more aggressive treatment of PsO. 

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Biomarkers Predictive of a Deucravacitinib Response in Psoriatic Arthritis

A phase II trial demonstrating the clinical efficacy of deucravacitinib, a TYK2 inhibitor, in psoriatic arthritis (PsA) suggests specific biologic effects identified by biomarkers may predict clinical responses.

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Canary in a Coal Mine (4.19.2024)

Dr. Jack Cush reviews regulatory reports, news and novel journal articles - this week focusing on Sjogren's, ILD, Gout and Uveitis.

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#RNL2024 @RheumNow @_AprilArmstrong Choosing a biologic in Psoriasis TNF - great in PsA, pregnancy. Avoid in demyelinating, hep B IL-17 - robust skin, PsA (axial too). Avoid in IBD IL-23 - robust skin, PsA evidence, fewer injections https://t.co/42kUaIZxKs

Dr. John Cush @RheumNow( View Tweet )

Window of Opportunity in Psoriatic Arthritis

A Dutch Early Psoriatic Arthritis cohort study shows that psoriatic arthritis (PsA) patients treated early (referred and diagnosed  within in less than 12 weeks) had the best clinical outcomes. 

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2023 EULAR Psoriatic Arthritis Recommendations

EULAR has updated its treatment recommendations from the prior 2019 guidelines, since which there have been several newly developed agents. The updated guidance includes 7 overarching principles and 11 recommendations regarding treatment strategy and pharmacological therapies.

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Expert Panel Guidance on Managing Psoriatic Arthritis and Comorbidities

An expert panel has published their consensus guidelines for the management of psoriatic arthritis (PsA) and it's comorbidities in the journal Rheumatology. 

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Immunosuppression Increasing (2.23.2024)

Dr. Jack Cush reviews the news and journal reports from the past 2 weeks on RheumNow.com; but begins with a discussion of what constitutes "immunosuppression" and how it applies to our patients.





  1. 2021 NHIS Survey data suggests the prevalence of immunosuppression in the USA

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Oral IL-23 Inhibitor Effective in Psoriasis The NEJM has published the results of the FRONTIER 1 trial demonstrating the efficacy of JNJ-77242113, an oral interleukin-23 (IL-23) receptor antagonist peptide, in patients with psoriasis (PSO). https://t.co/NRK8LnM5zp https://t.co/FnWEze976O
Dr. John Cush @RheumNow( View Tweet )
"It's hard not to be jealous of the dermatologists." @JointMD discussing the results of JNJ 77242113, po IL-23R, the Frontier 1 trial. #RWCS24 @RWCSmtg @RheumNow https://t.co/1zQ6bu5TM2
Dr. Rachel Tate @uptoTate( View Tweet )
Combo IL-23 and TNFi synergistic benefit in UC in the proof-of-concept VEGA trial. More data to come! #RWCS24 @RWCSmtg @RheumNow https://t.co/FgLTR2PBYJ
Dr. Rachel Tate @uptoTate( View Tweet )

Pre-Treatment Testing with Biologics Falls Short

US commercial insurance claim analysis of laboratory screening and monitoring practices in chronic inflammatory skin disease (CISD) patients shows that < 60% received the recommended pretreatment testing when starting systemic immunomodulatory treatment.

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2023 Rheumatology Year in Review

Dr. Jack Cush reviews highlights, advances and hot topics in rheumatology from 2023 and the RheumNow website.  



2023 was a year of growth and new horizons while returning to operational and practice standards (in care and education) established before the pandemic.  

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Enthesitis, Synovitis, and Tenosynovitis in Psoriatic Arthritis

An ultrasound study suggests that enthesitis is associated with both synovitis and tenosynovitis in patients with Psoriatic arthritis (PsA).

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Best of 2023: Does Biologic Treatment in Psoriasis Reduce the Risk of Psoriatic Arthritis?

Retrospective claims analysis shows that psoriasis patients treated with either an IL-12/23 inhibitor or an IL-23 inhibitor had a lower risk of developing incident psoriatic arthritis, compared to TNF inhibitors or IL-17 inhibitors.

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