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Previous Volume 320:1113-1119 April 27, 1989 Number 17 Next

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Abstract

After an active duodenal ulcer has healed in response to medical therapy, the rate of recurrence during the subsequent year is relatively high. We therefore enrolled 140 patients with healed duodenal ulcers in a two-year randomized, double-blind trial comparing maintenance therapy (ranitidine, 150 mg nightly) with placebo for the prevention of recurrent duodenal ulceration. We performed endoscopy annually and when symptoms suggested the recurrence of ulcers. Verified recurrent ulcers in either group were treated for four or eight weeks with open-label ranitidine (150 mg twice a day). Patients whose ulcers healed within eight weeks resumed randomized treatment. Prophylactic therapy with ranitidine reduced the rate of ulcer relapses from 63 percent in the placebo group to 37 percent in the ranitidine group (P less than 0.05). Treatment with ranitidine extended the median ulcer-free interval from one to two years (P less than 0.05). The first recurrences of ulcer were asymptomatic in half the ranitidine group and in a quarter of the placebo group. Prophylactic therapy with ranitidine also reduced the frequency of recurrent ulcers that were unhealed by eight weeks, that were bleeding, that were in the stomach, or that were the second recurrent ulcer within six months, from 43 percent in the placebo group to 21 percent. Patients who drank alcohol, smoked, had a history of ulcer disease, or had duodenal scarring or erosion at the time of entry into the study were at the greatest risk for recurrence and benefited the most from prophylactic ranitidine. We conclude that prophylactic treatment with ranitidine is effective in preventing the recurrence of duodenal ulceration.

Source Information

Center for Ulcer Research and Education, Veterans Administration Medical Center, Los Angeles, CA 90073.

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