Evidence mapPaperPMID 42099345Full record

ArticleCureus2026

When Immunotherapy Hits the Joints: A Case of Late-Onset Polyarthritis Induced by an Immune Checkpoint Blockade and Literature Review.

Yuenu Wu, Alexander Digregorio

Abstract readCase Reports
In one paragraph

Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Yuenu WuInternal Medicine, Phoenixville Hospital, Phoenixville, USA.
Alexander DigregorioInternal Medicine, Phoenixville Hospital, Phoenixville, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Immune checkpoint inhibitors (ICPis) are increasingly used across a wide range of malignancies, underscoring the growing need for awareness of ICPi-related adverse events (irAEs), especially outside cancer centers. We report a case of polyarthritis developing over 15 months after the initiation of nivolumab in a patient with advanced urothelial carcinoma of the prostate. The patient presented with symmetrical polyarthritis characterized by inflammatory features, which responded well to corticosteroid therapy. Given the delayed onset of symptoms following ICPi initiation, an extensive infectious and autoimmune workup was conducted, all of which returned negative. This case underscores the importance of continued vigilance for irAEs even during long-term therapy. Timely recognition of ICPi-induced arthritis is crucial, as early initiation of corticosteroids can lead to rapid symptom relief and significant improvement in quality of life.

Indexed as

arthritisimmune checkpoint inhibitorlate onset immune-related adverse eventnivolumabprostate cancer

Identifiers

PMID42099345
PMCPMC13148808

What Socratic holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.