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Med Sci Monit. 2004 Nov;10(11):PI126-31. Epub 2004 Oct 26.

Low-dose balsalazide plus a high-potency probiotic preparation is more effective than balsalazide alone or mesalazine in the treatment of acute mild-to-moderate ulcerative colitis.

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Digestive Endoscopy Unit, Lorenzo Bonomo Hospital, Andria (BA), Italy.



Balsalazide is well tolerated and effective in treating acute ulcerative colitis. VSL#3 is a probiotic cocktail proven to be effective in preventing flare-ups of chronic pouchitis. We compared the efficacy and safety of low-dose balsalazide (2.25 g/day) plus 3 g/day VLS#3 (group A) with medium-dose balsalazide alone (group B) and with mesalazine (group C) in the treatment of mild-to-moderate active ulcerative colitis.


Ninety patients (30 per group) were randomly enrolled, with a treatment duration of 8 weeks. Efficacy was assessed by symptoms assessment, endoscopic appearance, and histological evaluation.


Balsalazide/VSL#3 was significantly superior to balsalazide alone and to mesalazine in obtaining remission: 24 patients of group A were in remission [per-protocol: 85.71% (C.I.95%: 62-96), on intention-to-treat: 80% (C.I.95%: 59-91)], while 21 group B [per-protocol: 80.77% (C.I. 95%: 51-82), on intention-to-treat: 77% (C.I.95%: 43-81)] and 16 group C patients [per-protocol: 72.73% (C.I. 95%: 30-75), on intention-to-treat: 53.33% (C.I.95%: 42-62)] were in remission (p<0.02). Balsalazide with or without VSL#3 was better tolerated than mesalazine: two group C patients were withdrawn from the study because of severe side-effects; 1 group A (3.33%), 3 group B (10%) and 4 group C (13.33%) patients experienced slight side-effects. The balsalazide/VSL#3 combination was faster in obtaining remission than balsalazide alone or mesalazine (4, 7.5, and 13 days in groups A, B and C, respectively) and also better in improving all parameters evaluated.


Balsalazide/VSL#3 may be a very good choice in the treatment of active mild-to-moderate active ulcerative colitis instead of balsalazide alone or mesalazine.

[Indexed for MEDLINE]

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