Evidence map›Paper›PMID 42116395›Full record

SynthesisMedicine2026

A meta-analysis of the efficacy and safety of Janus kinase inhibitors in patients with ulcerative colitis.

Qingqing Yang, Yuerong Yan

Abstract readMeta-AnalysisSystematic Review
In one paragraph

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

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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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.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

2 authors.

Qingqing YangDepartment of Gastroenterology, Jiashan County Second People's Hospital, Jiashan County, Zhejiang Province, China.
Yuerong YanDepartment of Gastroenterology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang City, Hubei Province, China.ORCID 0009-0001-1286-5947

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUlcerative colitis (UC) is a chronic inflammatory bowel disease characterized by relapsing intestinal inflammation and substantial impairment of quality of life. Janus kinase (JAK) inhibitors are orally administered small-molecule agents that interfere with intracellular cytokine signaling pathways central to UC pathogenesis. This systematic review and meta-analysis aimed to assess the therapeutic benefits and safety profile of JAK inhibitors in adults with moderate-to-severe UC.

methodsA systematic literature search was conducted in PubMed (from inception to November 2025), Embase, the Cochrane Library, and Web of Science to identify placebo-controlled RCTs evaluating JAK inhibitors in adult patients with UC. The primary efficacy outcomes were clinical remission and clinical response. Secondary outcomes included endoscopic remission, endoscopic response, and mucosal healing. Safety was assessed by the incidence of any adverse events (AEs). Pooled risk ratios (RRs) with 95% confidence intervals (CIs) were calculated using fixed- or random-effects models as appropriate. Statistical heterogeneity was evaluated using the I2 statistic, and subgroup analyses were performed according to treatment phase.

resultsNine publications encompassing 14 placebo-controlled RCT datasets met the inclusion criteria. Compared with placebo, JAK inhibitors significantly increased rates of clinical remission (RR = 2.48, 95% CI: 1.64-3.73) and clinical response (RR = 2.53, 95% CI: 1.73-3.70), although moderate-to-high heterogeneity was observed. Endoscopic outcomes were also markedly improved, with higher rates of endoscopic remission (RR = 3.52, 95% CI: 2.55-4.86) and mucosal healing (RR = 2.60-2.79 across models). Safety analyses demonstrated no significant difference in the overall incidence of adverse events between JAK inhibitors and placebo. Subgroup analyses revealed consistent efficacy during both induction and maintenance phases, with comparable safety profiles across treatment periods.

conclusionJAK inhibitors provide significant improvements in both clinical and endoscopic outcomes for patients with moderate-to-severe UC without increasing the overall risk of adverse events in short-term trials. These findings support the clinical utility of JAK inhibitors in UC management, while highlighting the need for long-term studies to better characterize rare and delayed safety signals.

Indexed as

Colitis, UlcerativeJanus Kinase InhibitorsHeterocyclic Compounds, 3-RingHumansPiperidinesPyrimidinesQuality of LifeRandomized Controlled Trials as TopicRemission InductionTreatment OutcomeHeterocyclic Compounds, 3-RingJanus Kinase InhibitorsPiperidinesPyrimidinestofacitinibupadacitinibJanus kinase inhibitorsmeta-analysisrandomized controlled trialstofacitinibulcerative colitisupadacitinib

Identifiers

PMID42116395
PMCPMC13166860

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Registered trials

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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 OpenQuestion graph.