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IL-17

Putting IL17i into ‘focus’ for SpA-associated uveitis

The longest studied drug for uveitis in SpA has been monocolonal TNFi Abs. Reductions of acute anterior uveitis have been found with etanercept but less impressively than adalimumab, infliximab, and in my opinion less than golimumab and certolizumab pegol.

Other data have emerged for JAKi and

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In #axSpA post #TNFi-IR What to use next? 👇 #ATTRA registry 90% #SpA on #bDMARDs are captured Comparison of TNFi to ▶️ 2nd TNFi vs #IL17i ▶️No diff in #retention ✅better #BASDAI and other outcomes w TNFi! ❎less safety 🤔 #EULAR2025 @RheumNow @eular_org Abst#POS0116 https://t.co/7mqFfD4Amf
Janet Pope @Janetbirdope( View Tweet )
2-year #MANDARA data: Benralizumab shows durable remission, eosinophil suppression & OGC-sparing in EGPA. ~62-68% in remission at wk104. Low relapse rate, no loss of asthma control or decline of lung function. No new safety signals. @RheumNow #EULAR2025 #OP0166 https://t.co/kXh2q2ilJF
Mrinalini Dey @DrMiniDey( View Tweet )
Exciting results from ARGO trial: -Phase 2 of Sonelokimab (dual IL-17A-IL17F) nanobody in PsA. -Met primary endpoint of ACR50 at week 12 vs PBO. -62% achieved MDA -48% achieved composite of ACR 70+PASI 100 Looking forward to phase 3 results!!! Abstract #OP0096 #EULAR2025 https://t.co/1D52eG8ReS
Adela Castro @AdelaCastro222( View Tweet )
Secukinumab for PMR? -post hoc analysis of the TitAIN study (phase 2 RCT on new onset/relapsing GCA) showed: -Numerical reduction in patients experiencing PMR symptoms when treated with secukinumab compared to placebo. -Safety profile was similar to the overall GCA study

Adela Castro @AdelaCastro222( View Tweet )

Biomarker data suggest TNFi non-responders in PsA exhibit upregulation of IL-17F gene signatures after treatment failure. Supports IL-17A/F blockade rationale with bimekizumab in TNFi-experienced patients Abstract#OP0091 @RheumNow . #EULAR2025 https://t.co/CWR6ArDRRW
Antoni Chan MD (Prof) @synovialjoints( View Tweet )
Real-world study on dual bDMARD plus JAKi or TYK2i combinations in refractory PsA. 22 PsA patients on dual bDMARD + JAKi/TYK2i: •Most common: IL-17i + TYK2i •Total exposure: 8.5–10.5 pt-years •Only mild URIs/stomatitis •Clinical improvements seen in joint/skin domains https://t.co/waDReDqSDE
Antoni Chan MD (Prof) @synovialjoints( View Tweet )
Precision immunotherapy in axial spondyloarthritis: TRBV9xCD3 bispecific antibodies selectively depleted autoreactive TRBV9+ T cells from HLA-B27+ AS patient samples while sparing over 95 percent of the T cell repertoire. TRBV9xCD3 bispecific antibodies selectively depleted https://t.co/8UXqEaDYnS
Antoni Chan MD (Prof) @synovialjoints( View Tweet )
VEGF-Grab (PB101/PB102), dual VEGF/PlGF decoy receptor, inhibited angiogenesis, RA-FLS invasion, and Th17 cell differentiation in RA and MS models. PB102 reduced IL-17 and GM-CSF co-expressing Th17 cells, suppressed pannus and joint destruction in CIA, and outperformed IFN-β in https://t.co/qhVRYT4RbK
Antoni Chan MD (Prof) @synovialjoints( View Tweet )
Cool technology reduces dose interval of #IL17AFi To…every 6 to 12 months! #Antibody ORKA-002 has end of arms w YTE substitution prolonging circulation of drug Lasts longer than #bimekizumab Easier for adherence! #EULAR2025 @RheumNow @eular_org #abstPOS0016 https://t.co/KcKaIe0WMs
Janet Pope @Janetbirdope( View Tweet )

Combination treatments in Psoriatic Arthritis

Despite the advances in the treatment of PsA with biologic (bDMARD) and targeted synthetic (tsDMARD), less than half of patients with this condition achieved remission or low disease activity. Combination DMARD treatment is often used in order to achieve remission or minimal disease activity.

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❓️How effective and safe is it to combine bDMARDs and tsDMARDS (i.e. TNFi/ IL17i + JAKi/TYKi) in #psoriatic_arthritis? 🅰️ Reassuring data from a case-series study presented by Andre Lucas Ribeiro #EULAR2025 OP0090 @RheumNow #Strategy https://t.co/W8fuzSgxbJ
Nelly ZIADE 🍀 @Nellziade( View Tweet )
Ph 2 RCT Sonelokimab (IL-17A- & IL-17F-inhibiting Nanobody) 24wks 207 pts SON 120 MDA 51% vs. 45% ADA Subgroups: female 52%, weight ≥100kg 53%, ≥3% BSA 55% Composite ACR70/PASI100 SON 120 48% vs. 19% ADA No new safety signal Ph 3 on the way 2 doses SON 60 &120 #OP0096 https://t.co/w5QtpKbi1W
Aurelie Najm @AurelieRheumo( View Tweet )

IL-17 inhibition for PMR? In the secukinumab ph2 in GCA (TitAIN), patients with PMR did really well, seemingly outperforming steroid taper in the placebo arm. Real promise, will be great to see how the ph3 in PMR (REPLENISH) goes OP0062 #EULAR2025 @RheumNow https://t.co/cisA0GiUx1

David Liew @drdavidliew( View Tweet )
Xeligekimab in AS: -IL-17A blocker -Phase 3 study on Chinese pts showed sustained efficacy until week 48. -Significant improvement on DAI measures as well. -Fully humanized IgG4 mab may last longer in system and possible less ADAs. Abstract #OP0102 #EULAR2025 @RheumNow https://t.co/vyNHZ9ssFt
Adela Castro @AdelaCastro222( View Tweet )

📊 POS0574 @rheumnow #EULAR2025 Real-world data from SERENA shows sustained 5-year effectiveness of secukinumab in PsA. ✔️ 57% had no tender/swollen joints at Year 5 ✔️ PASI90 in ~48% ✔️ Stable low TJC, SJC & PtGA Durability confirmed even in prior biologic users. https://t.co/eNpboTRRu3

Jiha Lee @JihaRheum( View Tweet )
Early PsA? Treat fast, treat hard. The STAMP RCT showed that early secukinumab + MTX led to faster ACR50 and PASI90 responses vs standard care in a T2T strategy. By 12 months, outcomes were similar, but early SEC needed fewer escalations. Abstract#OP0092 @RheumNow #EULAR2025 https://t.co/cAZTc9eN16
Jiha Lee @JihaRheum( View Tweet )
Case series of 22 PsA pts treats w/ combination bioDMARDs & JAKi,TYK2i or APR IL17i + JAKi 10.5 PY = 1 mild infectious stomatitis IL23i + JAKi 3.7 PY = no AE IL-17i + TYK2i 8.5 PY = 2 mild upper respiratory infections IL-23i + TYK2i 8.3 PY = 2 mild URIs, 1 folliculitis TNFi + https://t.co/Qg9HIwuslJ
Aurelie Najm @AurelieRheumo( View Tweet )
Can IL-17F signalling be modulated by treatment with TNFi? In PsA pts non responders to previous TNFi, there was increased expression of IL17F-related gene signature. Suggesting a potential mechanism for the consistent level of clinical response observed with BKZ. Abstract https://t.co/D6fvp18UTz
Adela Castro @AdelaCastro222( View Tweet )
Early intensive therapy in PsA. STAMP RCT in early PsA: •ACR50 at 3mo: 43% (early secukinumab) vs 22% (SoC) •MDA at 3mo: 48% vs 25% •PASI90 at 3mo: 60% vs 22% By 12months: outcomes similar, but early secukinumab led to faster control and fewer therapy escalations. https://t.co/TKa5z24NQX
Antoni Chan MD (Prof) @synovialjoints( View Tweet )
STAMP RCT early SEC vs. SoC 120pts Retention 58% vs 30% ACR 20, 50, 70 and MDA: better outcome at Month 3 but no difference at Month 6 Dactylitis no difference Of note here SoC was a tight T2T strategy! @RheumNow #OP0092 #EULAR2025 https://t.co/8zHs5CRFV5
Aurelie Najm @AurelieRheumo( View Tweet )

Secukinumab promise in PMR is real

Choice is not just good, it is often necessary, and secukinumab promises just that in both PMR and GCA.

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Secukinumab Use in Refractory Giant Cell Arteritis

In 2023, the phase 2 TitAIN study showed that the effectiveness and safety of secukinumab in 52 patients with giant cell arteritis (GCA) who had an inadequate response to tocilizumab. While we await the results of a larger phase 3 trial, there is a 6 patient case series also suggesting

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Swiss Registry study of PsA outcomes when started on either TNFi (N 503) or IL-17i (n 341), latter w/ more severe PSO. IL-17i durability superior to TNFi (median 828 vs 445 d, P<.001), w/ less D/C in women (HR 0.57); but ACR 20 (14 v 33%) & ACR50 (7 v 24%) favored TNFi use https://t.co/R33bwSeB3E
Dr. John Cush @RheumNow( View Tweet )

Biologics in Pregnancy Patients With Autoimmune Disease

A large cohort, claims data study shows that among pregnant women receiving biologic therapies for autoimmune conditions, 72% continued their biologics pregnancy, more so among inflammatory bowel disease (IBD) patients than those with rheumatoid arthritis (RA), psoriasis (PsO) or psoriatic

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