Psoriatic arthritis

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Sleep and Obesity: A Bidirectional Relationship

Jack Cush, MD

In July 2026, JAMA concisely reviewed the bidirectional relationship between sleep health and obesity. Obesity affects roughly 40% of US adults and sleep problems affect nearly one-third. This review outlines the biological mechanisms and clinical interventions relevant to weight management.

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DERM on RheumNow PODCAST (August 2026) The Derm on RheumNow podcast is a review of recent citations and content curated for dermatologists – addressing Psoriasis, PsA, CLE, vasculitis, HS, CTD skin disorders. Dermatology drugs, biologics, and JAK inhibitors - their use, https://t.co/u2sJqCgDJS
Dr. John Cush @RheumNow( View Tweet )
Rheums! Do you have a Rheumatology question or case for Dr. Cush? Record it here, and we may feature it on an upcoming podcast. Tell us your name and where you practice rheumatology. https://t.co/LZ59KW8HdA https://t.co/DwHdvpTYax

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SELECT-PsA 2 subanalysis of 195 active PsA not responding to TNFi shows switching to upadacitinib 15 (vs PB) was superior @wk 24 - ACR20 (58% vs 22%), ACR50 (38% vs 9.5%), ACR70 (22% vs 0%), MDA (24% vs 3%) & maintained thru wk 152. Switching MOAs makes sense! https://t.co/YEkZuQ95Mu
Dr. John Cush @RheumNow( View Tweet )
Aortic inflammation (Aortopathies) occurs in autoimmune rheumatic diseases (ARD) including Takayasus, #GCA, SLE, RA, AS, SSc, relapsing polychondritis, Cogan’s syndr, Behçet’s, & IgG4-related disease). Dx imaging options: CTA, MRI, & PET/CT. Underlying path may be granulomatous, https://t.co/lKBhEnTcKB
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20 long-standing PsO pts (freq nai,scalp dz) (b/tsDMARD-naive) Rx w/ OL apremilast 30 bid x 6 mos. Enthesitis (MRI or HR-pQCT) stable, PsAMRIS stable; no new erosions, but PASI (11-->5) & TJC signif improved (3.2-->0.8) https://t.co/UjACvXyvKs https://t.co/xfQGcW0yz7

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Rheum Scholarship (8.21.2026)

Jack Cush, MD

Dr. Cush reviews the news and journal articles from this past week on RheumNow.com; talking about lumbar belts, scholarships and misdiagnosis.

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Joint Pain Prevalence is not Declining A current report from the national NHIS survey shows that over half of US adults diagnosed with arthritis reported moderate to severe joint pain. https://t.co/zq7pGaZO72 https://t.co/kvco72v5IZ

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MASLD - Spanish review of 330 pts (101 psoriasis, 127 PsA, 102 controls) found metabolic-dysfunc-assoc steatotic liver Dz in 48% PsO, 32% PsA, 9% controls (p < 0.001). FibroScan tended higher in PsO 6.01 PsA 5.1 vs 4.9 controls https://t.co/wPxbLwVlOW https://t.co/ZtqYX5HPZa

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Can Effective Psoriasis Therapy Prevent Psoriatic Arthritis? 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). https://t.co/3gnV3eaKiu
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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POETYK PsA-1: Deucravacitinib in Biologic-Naïve PsA POETYK PsA-1 trial tested the disease modifying efficacy of deucravacitinib, a tyrosine kinase 2 (TYK2) inhibitor, in PsA patients and was shown to be superior vs to placebo for clinical responses, patient-reported outcomes, https://t.co/6ptGmzCoQ9
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2026 BSR Pain Guideline: What Rheumatologists Need to Know The British Society for Rheumatology has issued its first guideline dedicated solely to pain in inflammatory arthritis (IA)—covering RA, PsA, axial SpA and JIA. https://t.co/3Jtneox8Rh https://t.co/06ccLhjhMh

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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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NHANES survey (2005-2018) studied prevalence of arthritis in adults w/ depression (PHQ-9 ≥10), From 15157 depressed pts, RA was most prevalent & increased 7.8 to 17.7%; OA unchanged 11.7 to 10.7% & PsA declined 7.2 to 1.7%. Depression assoc w/ higher risk for RA (OR 1.40) & PsA https://t.co/fcROEvsHDT
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POETYK PsA-1: Deucravacitinib in Biologic-Naïve PsA POETYK PsA-1 trial tested the disease modifying efficacy of deucravacitinib, a tyrosine kinase 2 (TYK2) inhibitor, in PsA patients and was shown to be superior vs to placebo for clinical responses, patient-reported outcomes, https://t.co/VjwpCVKPz0
Dr. John Cush @RheumNow( View Tweet )
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2026 BSR Pain Guideline: What Rheumatologists Need to Know

Jack Cush, MD

The British Society for Rheumatology has issued its first guideline dedicated solely to pain in inflammatory arthritis (IA)—covering RA, PsA, axial SpA and JIA.

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Evaluating Inflammatory Joint Pain in Older Adults

Jack Cush, MD

Lee, Levinson, and Makris have published an approach to evaluating inflammatory joint pain in older adults in JAMA Internal Medicine. While intended to be a practical guide for primary care clinicians, the tenets and clues ring true for all.

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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 )
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Wealth and Where you Live Influences Outcomes

EurekAlert!

Patients from wealthier European countries tend to start treatment with biologics earlier but also stop or switch treatment earlier. They also experience lower disease activity at treatment start than patients in middle- and low-income countries.

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POETYK PsA-1: Deucravacitinib in Biologic-Naïve PsA

Jack Cush, MD

POETYK PsA-1 trial tested the disease modifying efficacy of deucravacitinib, a tyrosine kinase 2 (TYK2) inhibitor, in psoriatic arthritis (PsA) patients and was shown to be superior vs to placebo for clinical responses, patient-reported outcomes, and structural damage inhibition in PsA.

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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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Mentshlichkeit* (8.7.2026)

Jack Cush, MD

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

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A Tribute to Daniel L. Kastner, MD, PhD (1951–2026)

Jack Cush, MD

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.

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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
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Therapeutic Updates

Label update: Structural damage progression in active PsA

Sponsored by Johnson & Johnson Medical Affairs
J&J RX Update
Listen to Dr. Catherine Bakewell’s review of clinical data from a recent label update.
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Recent Blogs

Advanced Practice Rheum

Methotrexate

Jack Cush, MD
APR MTX Cover
In this session, Dr. Jack Cush reviews methotrexate.
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Advanced Practice Rheum

Evaluation of Rheumatic Complaints

Jack Cush, MD
Eval of Rheum Complaints Cover Image
Dr. Cush provides a systematic approach to evaluating musculoskeletal and rheumatic complaints in clinical practice.
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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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Podcasts

  • PsA Topic Podcast compilation
  • EULAR 2026 Daily Podcast Day 4c
  • EULAR 2026 Daily Podcast Day 4a
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