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Upadacitinib and IL-23 inhibitors show favorable efficacy and tolerability in moderate-to-severe ulcerative colitisNew Data Compares Treatments for Moderate to Severe Ulcerative Colitis

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Key Takeaway
Consider Upadacitinib for high efficacy in refractory cases and IL-23 inhibitors for favorable maintenance tolerability.

This network meta-analysis evaluates the efficacy and tolerability of Upadacitinib, Ustekinumab, Risankizumab, Guselkumab, and Mirikizumab in patients with moderate-to-severe ulcerative colitis. The analysis focuses on clinical remission and endoscopic improvement during induction and maintenance phases.

Key findings indicate that Upadacitinib, Ustekinumab, and Risankizumab co-occupied the most favorable quadrant for induction phase efficacy and tolerability. During the maintenance phase, Upadacitinib 30 mg demonstrated the highest-ranking probability for efficacy. Furthermore, Upadacitinib showed the highest relative efficacy among evaluated therapies in patients who were previously exposed to biologics.

Regarding maintenance, IL-23 antagonists (Guselkumab and Mirikizumab) and low-dose Upadacitinib exhibited a highly favorable efficacy-tolerability profile. The authors note that the evidence is limited by a scarcity of head-to-head trials. Clinically, Upadacitinib is suggested as a highly efficacious option for achieving clinical and endoscopic endpoints in refractory disease, while IL-23 antagonists provide favorable tolerability for maintenance.

How this fits prior evidence

This meta-analysis addresses a gap in the comparative landscape of treatments for ulcerative colitis. While previous evidence noted that TCM components show short-term efficacy signals in ulcerative colitis but lack robust human evidence, this study provides a structured comparison of modern biologics and JAK inhibitors. It specifically highlights Upadacitinib as a high-efficacy option for refractory disease and IL-23 antagonists as tolerable maintenance options.

Researchers conducted a network meta-analysis to compare several medications for people with moderate to severe ulcerative colitis. The study looked at drugs including Upadacitinib, Ustekinumab, Risankizumab, Guselkumab, and Mirikizumab. They specifically looked at how well these drugs worked to achieve clinical remission and endoscopic improvement during both the initial treatment and long-term maintenance phases.

During the initial treatment phase, Upadacitinib, Ustekinumab, and Risankizumab were all found to be among the most favorable options. For long-term maintenance, Upadacitinib at a 30 mg dose showed the highest ranking for effectiveness. Additionally, IL-23 antagonists like Guselkumab and Mirikinumab, along with low-dose Upadacitinib, showed a very favorable balance between being effective and being well-tolerated by patients.

It is important to note that this study is a network meta-analysis, which means it compares several treatments indirectly rather than through direct head-to-head trials. Because there are few direct comparisons between these specific drugs, the results should be viewed as a guide for doctors. Patients should talk to their healthcare provider to decide which treatment fits their specific medical history and needs.

What this means for you:
Upadacitinib and IL-23 antagonists show different strengths in efficacy and tolerability for ulcerative colitis.

Common questions

Which medications were most effective for initial treatment?

The study found that Upadacitinib, Ustekinumab, and Risankizumab all occupied the most favorable quadrant for efficacy and tolerability during the induction phase. This means they were all considered strong options for starting treatment in patients with moderate to severe ulcerative colitis.

What are the best options for long-term maintenance?

For long-term maintenance, Upadacitinib at a 30 mg dose showed the highest-ranking probability for efficacy. Additionally, IL-23 antagonists like Guselkumab and Mirikinumab, along with low-dose Upadacitinib, showed a highly favorable profile for both effectiveness and tolerability.

Are these treatments effective for patients who have tried other biologics?

The analysis showed that Upadacitinib demonstrated the highest relative efficacy among the evaluated therapies for patients who had already been exposed to other biologic treatments. You should discuss your specific history with your doctor to see if this is a suitable option.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedOct 2026
View Original Abstract ↓
Background and AimsThe therapeutic landscape for moderate-to-severe ulcerative colitis (UC) has expanded with the introduction of oral small molecules and recently approved biologics. However, the scarcity of head-to-head trials necessitates indirect comparisons to clarify their relative positioning. We aimed to determine the comparative efficacy and tolerability hierarchy of approved and emerging advanced therapies, incorporating the most contemporary evidence.MethodsWe retrieved randomized controlled trials (RCTs) from major databases up to November 2025. Efficacy outcomes included clinical remission and endoscopic improvement; tolerability was evaluated via discontinuations due to adverse events. We employed Bayesian network meta-analysis and bivariate clustered ranking to visualize efficacy-tolerability profiles, stratifying by prior biologic exposure.ResultsA total of 32 RCTs were included. In the induction phase, Upadacitinib, Ustekinumab, and Risankizumab co-occupied the “most favorable” quadrant, combining high efficacy with superior tolerability. In the maintenance phase, Upadacitinib 30 mg demonstrated the highest-ranking probability for efficacy, while IL-23 antagonists (Guselkumab, Mirikizumab) and low-dose Upadacitinib exhibited a highly favorable efficacy-tolerability profile. Notably, in biologic-exposed patients, Upadacitinib demonstrated the highest relative efficacy among evaluated therapies, whereas Guselkumab emerged as a highly effective biologic alternative based on current estimates.ConclusionBased on current network estimates, Upadacitinib is suggested among the most efficacious options for achieving clinical and endoscopic endpoints, particularly in refractory disease, while IL-23 antagonists present highly favorable tolerability profiles for maintenance without compromising efficacy. These findings support a tailored approach to drug selection, aligning patient-specific profiles of inflammatory burden with current evidence-based safety thresholds.Systematic Review Registrationhttps://www.crd.york.ac.uk/PROSPERO/view/CRD420261292029, identifier CRD420261292029.
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