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. 2023 May;21(5):1348-1350.
doi: 10.1016/j.cgh.2022.02.044. Epub 2022 Mar 1.

Net Remission Rates with Biologic Treatment in Crohn's Disease: A Reappraisal of the Clinical Trial Data

Maia Kayal  1 , Ryan C Ungaro  2 , Geoffrey Bader  3 , Jean-Frederic Colombel  4 , William J Sandborn  5 , Carlos Stalgis  6
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Net Remission Rates with Biologic Treatment in Crohn's Disease: A Reappraisal of the Clinical Trial Data

Maia Kayal et al. Clin Gastroenterol Hepatol. 2023 May.

Abstract

Biologic therapies have greatly advanced the medical care of patients with Crohn's disease (CD); however, up to 50% of patients have no response and up to 80% fail to achieve remission.1-4 One way to investigate this treatment gap in CD is to look at the "net" remission rates in clinical trials defined as the actual percentage of patients enrolled during induction who are in remission at the end of maintenance. Indeed, most of the seminal clinical trials in CD used a "responder" methodology, where only patients who responded during induction were rerandomized to maintenance.

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