IL-17

Prolonged exposure to targeted Rx in #SpA not assoc w/ increased cancer risk. French claims study 56,591 SpA pts- 1,224 CA (1,029 solid, 116 Heme). TNFi, IL17i, IL12/23i, IL23i, JAKi Exposure >6 vs ≤6 mos assoc w/ lower CA (HR 0.86; 0.75-0.99); signif for Heme (HR 0.65), not https://t.co/rHAa0CkAjT
Dr. John Cush @RheumNow( View Tweet )
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Can Effective Psoriasis Therapy Prevent Psoriatic Arthritis?

Jack Cush, MD

A review article assesses and integrates mechanistic, imaging, and clinical evidence to examine whether effective treatment of psoriasis may modify the future risk of psoriatic arthritis (PsA).

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Simple infographic on the MOA of deucravacitinib (Sotyktu). https://t.co/fXbxMAzvAE https://t.co/6IvA0Xz3m2

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Dr. John Cush @RheumNow( View Tweet )
MoonLake announced positive phase 3 data from its IZAR-1 RCT using its dual A/F IL-17 inhibitor sonelokimab, showing significant responses at week 16: 66% ACR20, 42% ACR50, 41% minimal disease activity (MDA), & 61% PASI90 at week 16. a 2nd IZAR-2 PsA RCT is in progress https://t.co/eX0cxekRKG
Dr. John Cush @RheumNow( View Tweet )
COLIPSO prospective study of psoriasis or psoriatic arthritis adults starting ts/bDMARDs; MRI done serially. 35 pts f/u for ~29 wks - MASLD. Only Rx w/ IL-17 inhibitors improved liver fat and inflammation in psoriatic disease as well as clinical outcomes. https://t.co/MFjvh5OJg2 https://t.co/k0C7RSvaaR

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Dr. John Cush @RheumNow( View Tweet )
British Dermatology Biologics registry (BADBIR) 18976 #PSO pts had incidence serious infxns (SIE) 28 SEI/1000 Pt-Yrs; higher if they had prior infxn (79/1000 PYs). SIE signif lower w/ RIZankizumab (HR 0.74-.80) vs BROAD, ETN, other standards Rxs. SIE deaths rare (1.81/1000 PYs) https://t.co/GTr3DLCVXs
Dr. John Cush @RheumNow( View Tweet )
British Dermatology Biologics registry (BADBIR) 18976 #PSO pts had incidence serious infxns (SIE) 28 SEI/1000 Pt-Yrs; higher if they had prior infxn (79/1000 PYs). SIE signif lower w/ RIZankizumab (HR 0.74-.80) vs BROAD, ETN, other standards Rxs. SIE deaths rare (1.81/1000 PYs) https://t.co/5HqJ3zpO0g
Dr. John Cush @RheumNow( View Tweet )
EULAR meeting room

Psoriatic Arthritis: EULAR 2026 Recap

Jack Cush, MD

Years of IL-17 vs. IL-23 debate in PsA finally got tested head-to-head: bimekizumab outperformed risankizumab on joint outcomes in the BE BOLD trial, while a GLP-1 combination study suggests weight and metabolic status are active drivers of PsA — not just comorbidities. This recap also digs into

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RT @yuz6yusof #EULAR2026 OP0337 In double blind LTE WILLOW study, cutaneous efficacy (change in CLASI, CLASI 70/50) was maintained in Enpatoran, TLR 7/8-i by WK48. Those switched from PBO to ENP at WK24 also showed equal efficacy to ENP-ENP group. Promising treatment for #CLE

Dr. John Cush @RheumNow( View Tweet )

Canada.maple.leaf

ICYMI: Updated CRA/SPARCC Recommendations for Axial Spondyloarthritis

Jack Cush, MD

In 2024, the Canadian Rheumatology Association (CMA) and the Spondyloarthritis Research Consortium of Canada (SPARCC) published a comprehensive set of 56 treatment recommendations for the management of axial spondyloarthritis. This first update is focused on the reassessment of IL-17i

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Generic Tofacitinib (6.26.2026)

Jack Cush, MD

Dr. Jack Cush reviews the news and journal articles from RheumNow.com. Updates on tofacitinib, CAR-T therapy and AI.

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2026 Guidelines for the Treatment of Axial Spondyloarthritis

ACR

New and updated clinical guidelines released today provide comprehensive, evidence-based recommendations for the management of axial spondyloarthritis (axSpA) for both adults and children. The effort includes an update to the 2019 ACR/SAA/SPARTAN treatment guidelines focusing on adults,

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Eular stage

Late-Breaking Studies at EULAR 2026

MedPage Today

Late-breaking abstracts presented at the European Alliance of Associations for Rheumatology's (EULAR) annual meeting, held here last week, addressed a wide range of clinical

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In the psoriasis-to-PsA transition study at EULAR 2026, which ultrasound finding best distinguished progressing from stable subclinical PsA? Test your knowledge in this week's RheumIQ quiz at https://t.co/Fnzn4UPu0n https://t.co/kV0zA7qyg7

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Dr. John Cush @RheumNow( View Tweet )
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EULAR 2026 Rheumatology RoundUp

Jack Cush, MD

It’s time for Rheumatology RoundUp from EULAR 2026 from London, UK. Drs. Artie Kavanaugh and Jack Cush review their choice presentations from the meeting, offering their perspectives on impact and applicability.

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🏠 Take Home Messages from the early #axSpA session 🔺 Earlier diagnosis is possible and better 🔺 Early axSpA is not synonymous to mild 🔺 Longitudinally, early axSpA is heterogeneous 🔺 MRI has transformed the field ❗️Beware of pitfalls #EULAR2026 @RheumNow https://t.co/IhGQSxssyd

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Nelly ZIADE 🍀 @Nellziade( View Tweet )
A high proportion of juvenile-onset SpA progress toward a r-axSpA phenotype Results from the Spanish REGISPON-3 POS1352 #EULAR2026 @RheumNow https://t.co/XicguAdXJ1

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Nelly ZIADE 🍀 @Nellziade( View Tweet )
Is the risk of uveitis comparable between infliximab sc and adalimumab in patients with r-axSpA and prior AAU? Yes! POS 1347 Multicenter randomised open-label trial N=56 #EULAR2026 @RheumNow https://t.co/kP7ropPkpC

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Nelly ZIADE 🍀 @Nellziade( View Tweet )
LB0001: Bimekizumab SUPERIOR to risankizumab on ACR50 in active #PsA 49.1% vs 38.4% (p=0.0078). First ever H2H biologic superiority on joints in PsA. #Bimekizumab @RheumNow #EULAR2026 https://t.co/6waepYs9RK

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Antoni Chan MD (Prof) @synovialjoints( View Tweet )
#EULAR2026 LB0001 BOLD results in #PsA. First H2H RCT showing superiority of Bimekizumab (IL17A- & F-i) vs Risankizumab (IL-23-i) in primary endpoint, ACR50 49% vs 38% at WK16. The difference was seen from WK4 & sustained to WK24. May help inform choice of Tx @RheumNow #EULARBest https://t.co/s4zbFiepuP

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Md Yuzaiful Md Yusof @Yuz6Yusof( View Tweet )
ACR50 at Week 4 was 19.9% (BKZ) vs 7.2% (RZB) nominal p<0.0001. Faster onset, higher sustained joint response. DAPSA LDA/remission 65% vs 55%. Dual IL-17A/F blockade outperforms IL-23 inhibition for joints in #PsA. Abstr LB0001 @RheumNow #EULAR2026 https://t.co/s4z8r1rKte

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Antoni Chan MD (Prof) @synovialjoints( View Tweet )
First head-to-head trial to show #PsA joint outcome superiority BE BOLD: Bimekizumab (BKZ; IL-17A/F dual blockade) beat Risankizumab (RZB: IL-23i) on ACR50 at wk 16 (49.1% vs 38.4%, p=0.0078). BKZ also faster: ACR50 at wk 4 already 19.9% vs 7.2%. @RheumNow #EULAR2026 LB0001 https://t.co/YMQCpom5xD

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Jiha Lee @JihaRheum( View Tweet )
#EULAR2026 LB0002 More great news for dual IL17A and -F blockade. An open label Phase II study of Sonelokimab, a novel IL-17A- and IL-17F-inhibiting Nanobody'-3 in #axSpA: clinical efficacy, improvement in PROM and imaging inflammation. Looking forward to the RCT phase @RheumNow https://t.co/Xtxa8fALzN

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Md Yuzaiful Md Yusof @Yuz6Yusof( View Tweet )
LB0002: Sonelokimab (IL-17A/F Nanobody, ~40 kDa) in #axSpA Phase 2: 81% ASAS40 and 54% ASAS partial remission at 12 weeks. Mean ASDAS improvement of −2.0 from baseline. @RheumNow #EULAR2026 https://t.co/TjvtnFPCdj

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Antoni Chan MD (Prof) @synovialjoints( View Tweet )
#OP0207 #EULAR2026: SUPERFIBRES trial suggests dietary fibre supplementation may enhance MTX response in RA. Inulin improved EULAR responses and Th17/Treg balance over 30 days, with strongest effects seen in MTX-treated patients. Fascinating microbiome-linked signal. @RheumNow https://t.co/nCvZlooamF

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Mrinalini Dey @DrMiniDey( View Tweet )

Recent Blogs

Best of 2022: The Enthesitis Challenge in Psoriatic Arthritis

Robert Chao, MD
heel enthesitis spur calcaneal
A colleague of mine once told me an interesting story of how her father, who was a doctor, misdiagnosed his wife with fibromyalgia when she actually had psoriatic arthritis with enthesitis all along. I would venture out and say that the average physician would have trouble evaluating enthesitis because even we, as rheumatologists do! 
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Best of 2022: Toss of a Coin - How do You Choose PsA Medication?

M. Elaine Husni, MD, MPH
Coin toss
When balancing all these disease domains, individual phenotypes, and comorbidities, sometimes treatment decisions can feel like tossing a coin. Fortunately, numerous guidelines have been published to help us do better than tossing a coin…or do they? 
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2021 GRAPPA Recommendations - Looking Back, Looking Forward

Artie Kavanaugh, MD
reflections,ripple
With the recent publication of the third iteration of the GRAPPA Psoriatic Arthritis (PsA) treatment recommendations, it seems to be an auspicious time to reflect on some key considerations that arose during the development of the recommendations, as well as to look towards what the future may hold.
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