Immunology

Guidelines for Adult-Onset IgA Vasculitis A EUVAS-sponsored expert panel of 37 specialists across rheumatology, nephrology, dermatology, and pathology published evidence-based guidelines for adult-onset IgAV, which behaves very differently in adults than the usually https://t.co/mNuL4TG9Ua
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Phase 1/2 COMPARE trial of CD19 CAR-T Rx in 6 ACPA+ RA pts w/ severe refractory Dz; after lymphodepletion, given mivocabtagene autoleucel (miv-cel), followed < 52wks. All had CRS, No ICANSs or serious AEs. All had CD19 cell depletion & Decr in AutoAbs. Efficacy: 3/6 had ACR70 & https://t.co/qfSdq2g0rk
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đŸ”„ Still’s Disease Awareness Day 2026 🐉 I Won’t Be Still: Making Still’s Disease Visible Show us a moment from your life with Still’s Disease. 📾 Share a photo/video + what “I Won’t Be Still” means to you. For 47 hours, let’s make Still’s visible. #MyStills #StillsDay https://t.co/B7VNmlIOQj

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purpura

Guidelines for Adult-Onset IgA Vasculitis

Jack Cush, MD

A EUVAS-sponsored expert panel of 37 specialists across rheumatology, nephrology, dermatology and pathology has published evidence-based guidelines for adult-onset IgA vasculitis (IgAV), which behaves very differently in adults compared to usually self-limited childhood form.

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Misdiagnosis of Still's Disease High fever, strange rashes, scary labs often lead to a consideration of Still's disease (AOSD or systemic JIA). Yet the dramatic onset of a systemic disorder may overlap with another, and possibly rarer, systemic disorder that should not be https://t.co/pSfSahO5Nw
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Efgartigimod Efficacy in Idiopathic Inflammatory Myopathy Today Argenx announced the results of their Phase 3 "ALKIVIA" study; demonstrating efficacy and safety of subcutaneous efgartigimod for Idiopathic Inflammatory Myopathy (IIM, AKA inflammatory myositis). https://t.co/9tgAM8YVh1
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Latest #s: EHR estimates from 6 large US medical systems, estimated prevalence of autoimmune Dz (AID) to be >15 million (4.6% US population); 34% have > 1 AID. Women have 2x risk. Sex ratio of 1.7:1 F:M. https://t.co/tfSCpRqHbY https://t.co/VckjIoGOaa

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Tom.Medsger

A Tribute to Thomas A. Medsger Jr., MD (1936–2026)

Jack Cush, MD

The rheumatology and scleroderma communities mourn the loss of Dr. Thomas A. Medsger Jr., who died August 15, 2026, in Pittsburgh, at age 89.

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RHEUMATOLOGIST Survey Q> For Sjogrens disease, what therapy do you most commonly use? Click here: https://t.co/XJEsqoSlbn https://t.co/FvlOqwl2aD

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Italian SPRING cohort of #SSc pts found only 5.3% (of 1689 pts) without the typical scleroderma pattern on nailfold change by NVC. They had milder dz, with less vascular dz (pitting scars 33 vs 48%), telangiectasias (52 vs 74%), calcinosis 3.4 vs 12%) & higher DLCOs at 12, 24, https://t.co/AoNAhVYfII
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Efgartigimod Efficacy in Idiopathic Inflammatory Myopathy Today Argenx announced the results of their Phase 3 "ALKIVIA" study; demonstrating efficacy and safety of subcutaneous efgartigimod for Idiopathic Inflammatory Myopathy (IIM, AKA inflammatory myositis). https://t.co/TYP4KcdLoa
Dr. John Cush @RheumNow( View Tweet )
myositis.jpg

Efgartigimod Efficacy in Idiopathic Inflammatory Myopathy

Jack Cush, MD

Today Argenx announced the results of their Phase 3 "ALKIVIA" study; demonstrating efficacy and safety of subcutaneous efgartigimod for Idiopathic Inflammatory Myopathy (IIM, AKA inflammatory myositis).

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Doubting RS3PE (8.14.2026)

Jack Cush, MD

Dr. Jack Cush reviews the news and journal articles this week where RheumNow featured info on cancer, deadly viruses, AI rules, poetry and good moons rising.

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CDC warns of an association betw severe CNS arboviral disease, w/ neurologic sequelae in pts receiving anti-CD20 mAbs (rituximab, ocrelizumab, ofatumumab, obinutuzumab, etc). West Nile virus was the most common arbovirus, but there are others; mortality up to 40%. Most arbovirus https://t.co/WWg41fsRgr
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Simple infographic on the MOA of deucravacitinib (Sotyktu). https://t.co/fXbxMAzvAE https://t.co/6IvA0Xz3m2

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tick.jpg

What's New in Lyme Disease

Jack Cush, MD

JAMA has published an overview of new considerations on Lyme disease, focusing on Diagnostics, Vaccines, and Prevention.

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Air Pollution Increases RA Activity and Flares Koreans with rheumatoid arthritis (RA) showed increased disease activity and higher flare rates when exposed to relatively high levels of small atmospheric particulate matter, researchers reported. https://t.co/9dZkTzivRz https://t.co/Reic3P5U6r

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Dr. John Cush @RheumNow( View Tweet )
Korean study of 1070 #RA pts. assessed for Dz activity & monthly pollution exposure (SO2, NO2, ozone, CO, PM10, PM2.5). Among 6 pollutants, PM2.5 signif incr risk of flare (adj OR 1.11) & DAS28-CRP, CDAI, TJC, SJC; more so w/ in women & nonsmokers & w/ prolonged PM2.5 exposure https://t.co/HgtWMz9LMs
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Best proof of difference betw Seropos vs seroneg RA from TREAT-EARLIER 12 mos study 236 clinically suspect arthralgia pts w/ subclinical Jt inflammation Rx w/ MTX vs PBO. MTX prevented RA only the seroneg RA (9 v 35%); But no protection in seropos RA (58 vs 65%) https://t.co/ufY9ZJmKgf
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A Tribute to Daniel L. Kastner, MD, PhD (1951–2026) The rheumatology, genetics and NIH communities mourn for Dr. Daniel L. Kastner, who died on July 28, 2026, in Bethesda, Maryland, at age 74. https://t.co/Qti4Nay6NX https://t.co/gjmY7G4XAc

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Dr. John Cush @RheumNow( View Tweet )
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Mentshlichkeit* (8.7.2026)

Jack Cush, MD

Dr. Jack Cush reviews the news and recent journal reports on RheumNow.com.

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Eosinophil

Rethinking Treatment of EGPA

Jack Cush, MD

Eosinophilic granulomatosis with polyangiitis (EGPA) has long been managed by extrapolating results from microscopic polyangiitis and granulomatosis with polyangiitis clinical trials. But new insights into EGPA's has lead to advances in therapy and new treatment paradigms.

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Retrospective study, 41 pediatric Behcets Dz pts looked at Inflam. indices (NLR, SII, PIV, CRP/albumin) vs controls. BD systemic involvement in 68%, CNS dz in 10%, Vascular Dz in 12% & major organ dz 46%. Inflamm indices significantly higher in BD w/ systemic, CNS, & Vasc https://t.co/wHiBIaOWWU
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Interferon-α as an Immunologic Driver of Sjögren's Disease Using data from a Sjogren's registry, researchers have shown that IFNα drives Sjögren's disease, and can be elevated a decade before diagnosis. This study assessed the role of type 1 interferon (IFNα) in its onset and https://t.co/Clj9u5COzQ
Dr. John Cush @RheumNow( View Tweet )
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Methotrexate Safety Tips (7.31.2026)

Jack Cush, MD

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

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Recent Blogs

rheumthought

CNS Lupus (NPSLE)

Jack Cush, MD
Cush RhTh CNS
29 yr. old woman with SLE and transverse myelitis. Is this NPSLE; how to diagnose?
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Unpopular opinion: spinach can be bad for you

Lara El Khoury, MD
pro con unsure opinion thumbs debate
PMR might be one of the most rewarding diagnoses to make in real practice: the patient comes to you in severe debilitating pain, and you prescribe steroids, giving them their lives back! As much as this impressive response makes your intervention appear almost magical, there is the often-forgotten story about the implications of such a diagnosis and treatment on patients' daily lives. 
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What Goes Wrong with the Immune System in PMR?

Kornelis van der Geest, MD, PhD
PMR,pathogenesis.JIM2022
Polymyalgia rheumatica (PMR) is a common inflammatory rheumatic disease. The exact trigger for PMR onset remains unknown. However, immunology studies and clinical trials with biological DMARDs now shed light on the immune pathways involved in PMR.
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