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Study identifier: NCT05974358 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

KONO-S Anastomosis Compared to Conventional Ileocolonic Anastomosis to Reduce Recurrence in Crohn's Disease

Condition: Crohn Disease  ·  Sponsor: Centre Hospitalier Universitaire de Besancon

PhaseNA
Planned participants226
Who can joinAll sexes, 18 Years to 75 Years
Healthy volunteersNo

About this study

Crohn's disease (CD) is a chronic inflammatory bowel disease (IBD) currently affecting one person in a thousand in France. It can lead to numerous digestive complications such as fistulas, abscesses or stenosis. Despite numerous therapeutic advances, the rate of patients requiring surgery remains very high, with approximately 50% requiring at least one surgical intervention at 10 years after disease diagnosis. However, surgical treatment is not curative, the postoperative recurrence rate being very high, from 65 to-90% endoscopic recurrence at 1 year. The ileocolonic anastomosis is the main site of postoperative recurrence currently defined by a Rutgeerts score (≥i2) 6 months after surgery. In 2003, Kono et al. described a new operative technique that could reduce the rate of post-operative recurrence: a termino-terminal ileocolonic anastomosis, anti-mesenteric, with a supporting column to prevent distortion and anastomotic stenosis (Kono-S anastomosis). The study showed no decrease in endoscopic recurrence rate at 1 year (83% vs 79%), but a significant decrease in surgical recurrence rate at 5 years (15% vs 0%). Recently, a randomized Italian monocenter study showed a significant decrease in endoscopic recurrence rate at 6 and 18 months (22.2% versus 62.8% and 25% versus 67.4%), as well as a decrease in clinical recurrence. The limitations of this study are its monocentric nature and the lack of centralization of the endoscopic analysis to assess the primary endpoint. This s…

This description comes directly from the study's public registry record.

Talk to the study team

Zaher LAKKIS  ·  +33381218988  ·  zlakkis@chu-besancon.fr

Astrid POZET  ·  +33381218988  ·  apozet@chu-besancon.fr

Always discuss trial participation with your own doctor first.

Locations (15)

CHu de BesançonBesançon, FranceRecruiting
CHU de BordeauxBordeaux, FranceNot Yet Recruiting
CHU de GrenobleGrenoble, FranceNot Yet Recruiting
CHU de Lille Hopital Claude HuriezLille, FranceNot Yet Recruiting
HCL-Hôpital Lyon SudLyon, FranceNot Yet Recruiting
AP-HM Hôpital NordMarseille, FranceNot Yet Recruiting
CHU de NançyNancy, FranceNot Yet Recruiting
CHU de NantesNantes, FranceNot Yet Recruiting
Ap-HP Hopital St LouisParis, FranceNot Yet Recruiting
AP-HP Hôpital Européen Georges PompidouParis, FranceNot Yet Recruiting
AP-HP Le Kremlin-BicetreParis, FranceNot Yet Recruiting
AP-HP St AntoineParis, FranceNot Yet Recruiting

+ 3 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05974358