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Histologic assessments in ulcerative colitis: the evidence behind a new endpoint in clinical trials.

Rish K PaiGeert D'HaensTaku KobayashiBruce E SandsSimon TravisVipul JairathGert De HertoghBomina ParkKim McGinnisIsabel RedondoNicole G LipitzTheresa Hunter GibbleFernando Magro
Published in: Expert review of gastroenterology & hepatology (2024)
Histologic assessments are used for their sensitivity in measuring mucosal inflammatory changes in UC. Due to correlation with disease activity, histologic assessments may support clinical decision-making regarding treatment decisions as such assessments can be associated with rates of clinical relapse, hospitalization, colectomy, and neoplasia. While histologic remission is limited by varying definitions and multiple histologic indices, work is ongoing to create a consensus on the use of histologic assessments in clinical trials. As research advances, aspirational targets beyond histologic remission, such as molecular healing and disease clearance, are being explored.
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