Question · from the living review of Inflammatory Bowel Disease →

Is it true that JAK inhibitors are associated with increased risk of herpes zoster infection compared to biologic therapies in patients with inflammatory bowel disease?

Likely updated weekly · as of

Priors rates this Likely — 80 out of 100, updated weekly. Probably — but it is not fully settled. On the claim that JAK inhibitors are associated with increased risk of herpes zoster infection compared to biologic therapies in patients with inflammatory bowel disease, its four-agent AI review panel weighs 10 primary peer-reviewed studies.

RefutedDoubtfulUncertainLikelyEstablished
where this sits on Priors’ scale of how settled the evidence is

How we got this answer. Priors runs each claim through a panel of four AI agents, each acting as a specialist expert reviewer. They read the published, peer-reviewed studies behind the question, judge how strong, consistent and reliable the evidence is, and turn that judgment into a single rating from 0 to 100 — refreshed every week as new studies appear, so it reflects where the evidence stands today, not a one-off verdict.

The traceable studies behind this rating — and the panel’s single strongest counter-argument to it — are in Priors’ full Inflammatory Bowel Disease review.

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Reflects the peer-reviewed evidence as of 17 July 2026 and updates as new studies land. AI can make mistakes. Not medical advice.