Two Doses Mesalazine Granules Versus Placebo for the Prevention of Recurrence of Diverticulitis

The primary purpose of the study is to demonstrate the superiority of mesalazine granules
compared to placebo in terms of the two primary efficacy variables 'proportion of
recurrence-free patients within 48 weeks' and 'proportion of recurrence-free patients within
96 weeks'.

Inclusion Criteria:

- Diagnosis of left-sided uncomplicated diverticular disease confirmed by computed
tomography

- Presence of at least one diverticulum of the left colon

- Most recent attack of left-sided uncomplicated diverticulitis responding to
antibiotics and/or dietary modification within the last 6 months

- C-reactive protein (CRP) > upper limit of normal (ULN) or leucocytosis at the start of
the most recent attack

Exclusion Criteria:

- Complicated diverticular disease

- Right-sided diverticulitis

- Previous colonic surgery

- Presence of symptomatic organic disease of the gastrointestinal tract

- Active colorectal cancer or a history of colorectal cancer

- Hemorrhagic diathesis

- Active peptic ulcer disease, local intestinal infection

- Asthma if careful medical monitoring is not ensured

- Abnormal hepatic function or liver cirrhosis

- Abnormal renal function