Rare Diseases

On this week's podcast, Dr. Jack Cush reviews the news: Steroids are easy to start and hard to stop; hold the MTX but not the biologic or JAK, weighing in on avacopan, and age-old messages for old-age patients. 

A real world analysis of drug use in giant cell arteritis (GCA) patients shows that despite intending to taper patients off glucocorticoids (GC) by 24 months, 75% remained on GCs for ≥ 48 months.

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

The EBR Journal Club Companion applies my adapted version of the JAMA approach to critical appraisal to an important RCT in rheumatology. Each review covers four domains: Does this apply to my patients? What is the risk of bias? How great are the benefits and harms? And what didn’t they show me

Dr. Jack Cush reviews the news and journal reports from this past week on Rheumnow.com - including obesity, disappointing durability with GLP-1 drugs, AI diagnoses and worries about CV risk in ANCA-associated vasculitis. And take this week's RheumIQ quiz

The FDA and Priovant recently annouced approval of brepocitinib (Lisraya), a JAK1/TYK2 inhibitor, for the indication of adults with dermatomyositis (DM). This is the first oral (once daily) agent approved for DM.

A secondary analysis of the VALOR trial has shown that the TYK2/JAK1 inhibitor brepocitinib was effective at cutaneous disease activity outcomes, delivering rapid, clinically meaningful, and remission-level control of cutaneous dermatomyositis (DM).

Postural orthostatic tachycardia syndrome (POTS) is a chronic autonomic disorder affecting an estimated 0.1%–1% of the US population, with peak incidence at ages 13–29 and a striking 90% female predominance.

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.

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 as rare, systemic disorder that should not be misdiagnosed or mistreated. A current case review by

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).

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.

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

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.

The rheumatology, genetics and NIH communities mourn for Dr. Daniel L. Kastner, who died on July 28, 2026, in Bethesda, Maryland, at age 74. The following are declarations, tributes, and memories dedicated to this mensch of a man, titan of science, memorable mentor and humble physician.