Clinical Cases  ·  Rheumatology Vol. I: Inflammatory Arthritis  ·  Spondyloarthritis
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Rheumatology

Spondyloarthritis

13 cases on first- and second-biologic selection across axial and peripheral spondyloarthritis, comorbidity-driven drug-class exclusions, and biologic tapering and eligibility thresholds — choose a case below to open its full multi-voice debate.

RheumatologySpondyloarthritis
A First Biologic for Axial Spondyloarthritis, Eighteen Months Before She Wants to Conceive

Danielle R., 27, an electrician, needs her first biologic for axial spondyloarthritis and plans to conceive in eighteen months. TNF and IL-17 inhibitors are guideline-equivalent in general — the disagreement is whether her specific conception timeline should be the thing that actually picks the drug.

Case 0001
RheumatologySpondyloarthritis
An IL-17 Inhibitor for a Patient Whose Colitis Has Been Quiet for Eighteen Years

Marguerite T., 58, a retired postal worker, has axial spondyloarthritis and ulcerative colitis that's been silent for eighteen years. The 2025 guideline lifted the old absolute ban on IL-17 inhibitors in her situation — the disagreement is whether that lift applies equally to both drugs in the class, or only to the one actually studied.

Case 0002
RheumatologySpondyloarthritis
An Oral JAK Inhibitor for a Long-Haul Trucker With a Cardiovascular Risk Factor

Walter K., 54, a long-haul trucker, wants an oral drug over an injectable for his ankylosing spondylitis. JAK inhibitors are guideline-recommended for axSpA generally — the disagreement is whether that recommendation still holds once his own cardiovascular risk factor is weighed against it specifically.

Case 0003
RheumatologySpondyloarthritis
Sulfasalazine to Bridge a Nine-Month Wait, in a Patient With No Peripheral Disease to Treat

Aisha B., 24, a graduate student back from fieldwork in a high-tuberculosis region, has a positive latent TB test delaying her first biologic for axial spondyloarthritis. Reaching for sulfasalazine as a bridge sounds reasonable — the disagreement is whether the new guideline's restriction to peripheral disease rules that out for a patient with none.

Case 0004
RheumatologySpondyloarthritis
Tapering a Working Biologic in a Patient Who Fits Every Predictor of Failing To

Sofia M., 31, a kindergarten teacher in three years of remission, wants to taper her biologic before trying for a second child. The evidence supports tapering in general — the disagreement is what to do when the same patient fits nearly every known predictor of a taper failing.

Case 0005
RheumatologySpondyloarthritis
A Second Biologic After Eight Good Months and a Slow Fade

Desmond O., 39, a chef on his feet twelve hours a day, had eight good months on etanercept before a slow fade began. Whether that counts as primary or secondary failure decides his next drug — and a 2025 trial has just complicated which answer the room can still rely on.

Case 0006
RheumatologySpondyloarthritis
A Second Biologic for Psoriatic Arthritis That Never Fully Answered the First

Helena F., 45, a high school art teacher, has psoriatic arthritis that improved only partially on adalimumab. Four mechanistically distinct drug classes are all guideline-supported for exactly her situation — the disagreement is which of her own disease features should actually break the tie.

Case 0007
RheumatologySpondyloarthritis
A First Biologic for Psoriatic Arthritis in a New Father With Crohn’s Disease

Julian P., 36, a new father working ten-hour shifts on a concrete warehouse floor, needs his first biologic for psoriatic arthritis. His Crohn's disease rules out one class outright — the disagreement is which of the two mechanisms actually left standing fits him better.

Case 0008
RheumatologySpondyloarthritis
The Drug That Cleared Her Skin Is the One Drug Ruled Out for Her Spine

Carmen L., 42, a research librarian, has psoriasis fully controlled on an IL-23 inhibitor — and now a new diagnosis of axial psoriatic arthritis, a domain where the current guideline specifically excludes that exact drug class. The disagreement is whether to keep the drug that's already working for her skin or switch to the one her spine actually needs.

Case 0009
RheumatologySpondyloarthritis
A Swollen Finger That Won’t Let Him Work the Register

Otis G., 51, a hardware store owner, has dactylitis and Achilles enthesitis persisting despite adalimumab. Four mechanisms are all guideline-supported for exactly his domain of disease — the disagreement is whether the real tie-breaker should be a drug he's already familiar with rather than a clinical distinction.

Case 0010
RheumatologySpondyloarthritis
One Drug for a Colon Still Flaring and a Knee That Just Started

Naomi R., 29, six months into a line-cook job she loves, has active Crohn's disease and a knee arthritis that just started. The drug class with the strongest joint-specific evidence is the same one shown, in a real trial, to make her exact bowel disease worse.

Case 0011
RheumatologySpondyloarthritis
A Wrestling Coach’s Textbook History, Against an MRI That Won’t Cooperate

Tobias H., 33, a wrestling coach, has a back-pain history that fits axial spondyloarthritis in every way a history can. His MRI and CRP don't clear the objective-inflammation bar that biologic eligibility is actually built on.

Case 0012
RheumatologySpondyloarthritis
Choosing a First Biologic Around the Eyes, Not Just the Spine

Bridget A., 40, a wedding and portrait photographer whose career depends on her eyes, has mild ankylosing spondylitis and much more serious recurrent anterior uveitis. The two most commonly reached-for TNF inhibitors have opposite track records for the complication that's actually threatening her.

Case 0013
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