1.   The aim of our study was to find out if the more potent prokinetic drug cisapride could prevent duodenal ulcer relapse.

2.   In addition, it was postulated that the reported association of the letter two factors with ulcer relapse might result from changes in healing processes.

3.   The primary aim of the first trial was to discover if, after conventional healing of duodenal ulcers, eradication of H pylori prevented ulcer relapse.

4.   In the DU trial an endoscopy was also performed on development of symptoms suggestive of ulcer relapse.