Combination of enprostil and cimetidine is more effective than cimetidine alone in treating gastric ulcer: prospective multicenter randomized controlled trial.
2005
Background/Aims: Little is known about the clinical efficacy of co-therapy of enprostil, a prostaglandin E 2 analogue, with a histamine H 2 -receptor antagonist. We aimed to assess the additive benefit of enprostil in combination with cimetidine for treating gastric ulcer in a prospective multicenter randomized controlled trial. Methodology: In 43 hospitals 171 intention-to-treat (ITT) patients, diagnosed as having gastric ulcer by endoscopy, were randomly allocated to receive either enprostil 25μg b.i.d. and cimetidine 400mg b.i.d. (Group E=85), or cimetidine 400mg b.i.d. alone (Group C=86) for 8 weeks. Healing was examined by endoscopy at 4 and 8 weeks. Results: Per protocol (PP) analysis comprised 166 patients (E=82, C=84). Despite no significant advantage at 4 weeks (E=55.3%, C=42.2%), the combination yielded higher healing rates at 8 weeks by ITT (E=89.4%, C=68.6%; p 5mm in diameter), and without smoking or drinking habits. No adverse effects were critical. Conclusions: Enprostil safely and significantly augmented gastric ulcer healing and symptom relief by cimetidine.
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