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  • Title: High dose ursodeoxycholic acid in primary sclerosing cholangitis does not prevent colorectal neoplasia.
    Author: Lindström L, Boberg KM, Wikman O, Friis-Liby I, Hultcrantz R, Prytz H, Sandberg-Gertzén H, Sangfelt P, Rydning A, Folvik G, Gangsøy-Kristiansen M, Danielsson A, Bergquist A.
    Journal: Aliment Pharmacol Ther; 2012 Feb; 35(4):451-7. PubMed ID: 22221173.
    Abstract:
    BACKGROUND: Patients with primary sclerosing cholangitis (PSC) and inflammatory bowel disease (IBD) have a high risk of developing colorectal cancer and dysplasia. Ursodeoxycholic acid (UDCA) has been suggested to have chemopreventive effects on the development of colorectal cancer and dysplasia but long-term data and larger trials are lacking. AIM: To evaluate the effect of high dose (17-23 mg/kg/day) UDCA on colorectal neoplasia in a cohort of patients with PSC and IBD. METHODS: From our previous 5-year randomised controlled trial of UDCA vs. placebo in PSC, we performed a follow-up of 98 patients with concomitant IBD from entry of the trial 1996-1997 until 2009 for development of colorectal cancer or dysplasia. RESULTS: The total follow-up time was 760 person-years. Dysplasia/cancer-free survival was compared between placebo- (n = 50) and UDCA-treated (n = 48) patients. There was a similar frequency of dysplasia or cancer after 5 years between patients originally assigned to UDCA or placebo (13% vs. 16%) and no difference in dysplasia/cancer-free survival (P = 0.46, log rank test). At the end of 2009 no difference in cancer-free survival was detected, 30% of the placebo patients compared with 27% of UDCA patients had developed colorectal cancer or dysplasia. CONCLUSIONS: Long-term high dose ursodeoxycholic acid does not prevent colorectal cancer or dysplasia in patients with primary sclerosing cholangitis-associated inflammatory bowel disease.
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