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Biomedical subjects

N D'Imperio

Publications and source records attributed to N D'Imperio.

At least 19 recordsLinked to original sources

Tripotassium dicitrate bismuthate and ranitidine in duodenal ulcer. Healing and influence on recurrence.

One hundred patients were entered into a double-blind, double-dummy comparison of tripotassium dicitrate bismuthate (TDB) versus ranitidine, to evaluate short-term healing rates, and successfully healed patients were then entered into a follow-up phase to observe relapse rates. At 4 weeks 84% of patients treated with TDB and 68% of those treated with ranitidine had healed. At 8 weeks these figures had risen to 96% and 90%, respectively (p = NS). After a year's follow-up study 84% of patients healed initially with ranitidine had relapsed, whereas in the case of patients healed initially with TDB the relapse rate was 67% (p less than 0.05). The results confirm that in the short term, TDB is as effective as ranitidine, whereas the significantly better protection against relapse offered by TDB compared with ranitidine underlines the importance of restoring mucosal defence, an approach that to date has been somewhat overlooked.

Adult

Pirenzepine versus cimetidine in duodenal ulcer. A double-blind, placebo-controlled, short-term clinical trial.

90 patients with active duodenal ulcer were admitted to a double-blind trial to compare the effects of pirenzepine (150 mg/daily), cimetidine (1 g/daily) and placebo on the healing of duodenal ulcer. 5 patients did not complete the trial. In 21 of 29 patients (72%) receiving pirenzepine and in 21 of 28 (75%) of those receiving cimetidine, the ulcers had healed after 4 weeks of treatment compared with 10 of 28 (36%) patients receiving placebo (p less than 0.01). Symptomatic improvement and reduction of antacid consumption were significantly more marked in the pirenzepine- and cimetidine-treated groups than in the placebo group. Tolerability of drugs was good. The results show that pirenzepine is as effective as cimetidine for the treatment of duodenal ulcer.

Adult

Long-term treatment of duodenal ulcer with pirenzepine. A double-blind, placebo-controlled trial.

Sixty out-patients with duodenal ulcers that were healed at the end of a 4-week treatment with pirenzepine, cimetidine or placebo were admitted to a double-blind placebo-controlled trial to study the effectiveness of pirenzepine (100 mg/daily) in preventing recurrence of ulcers. Six patients did not complete the trial. After 12 months of treatment 15 of the 26 patients had recurrences in the pirenzepine-treated group and 27 of the 28 in the placebo group. The difference is highly significant (X2 = 9.570, P less than 0.01). The tolerability of pirenzepine was good.

Adult

Pirenzepine in non-ulcer dyspepsia. A double-blind, placebo controlled trial.

Fifty patients (with non-ulcer dyspepsia) were admitted to a double-blind, placebo-controlled trial to study the effects of pirenzepine (100 mg/daily) on non-ulcer dyspepsia. Ten patients did not complete the trial. After 4 weeks of treatment, statistically significant improvement (P less than 0.001) was observed endoscopically in the pirenzepine group. The relief of dyspepsia was significantly greater in the pirenzepine-treated group. The tolerability of pirenzepine was good.

Adult

Pirenzepine in the treatment of duodenal ulcer.

The effectiveness and safety of pirenzepine (PRZ) at 150 mg daily in the treatment of active duodenal ulcer was studied in an open pilot clinical trial followed by a double-blind trial against placebo. The open pilot study showed that pirenzepine was well tolerated and promoted ulcer healing in the 45% of patients within 2 weeks of treatment and in 90% within 4 weeks. The double-blind trial against placebo (PL) Confirmed these results: 60% of the patients in PRZ group and 10% of the patients in PL group showed endoscopic ulcer healing after 2 weeks. This difference was significant. Ninety per cent of the PRZ patients and 50% of the PL patients were completely healed after 4 weeks. In the PRZ group, gastric secretory tests showed a significant decrease in B.A.O. (69%), M.A.O. (33%) and P.A.O. (34%) after 2 weeks. In the PL group, the same parameters had only a small decrease, without statistical significance. There were no pathological changes in laboratory findings in either the open or the double-blind studies. Mild and transient side-effects were observed in 7 of 30 patinets receiving pirenzepine (diplopia and dryness of the mouth).

Adult

Pirenzepine versus cimetidine in the treatment of duodenal ulcer.

Fifty-five patients with active duodenal ulcer have completed, up to today, a one-month double-blind trial to compare the effects of pirenzepine (150 mg daily), cimetidine (1 g daily) and placebo on the healing of duodenal ulcer. Fifteen (71%) of the 21 patients treated with pirenzepine had healed ulcers compared with 14 (82%) receiving cimetidine (P less than 0.05. In the placebo group there were 7 (41%) healed ulcers. Symptomatic improvement in patients given pirenzepine was as substantial as in cimetidine-treated patients. No adverse effects were noted.

Adult