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A United States multicentre trial of dual and proton pump inhibitor-based triple therapies for Helicobacter pylori.

Abstract：

BACKGROUND:One-week proton pump inhibitor-based triple therapies are very popular in the US despite limited US data documenting efficacy. We assessed 1-week proton pump inhibitor triple therapies for Helicobacter pylori, and compared them to dual antibiotic therapies (to assess benefit of omeprazole) and to omeprazole-amoxycillin (to assess benefit of clarithromycin) in a large, randomized, US multicentre study. METHODS:Healthy subjects who were H. pylori-positive by rapid serological test and 13C-urea breath test were randomly assigned to (i) omeprazole (O) 20 mg b.d. + amoxycillin (A) 1 g t.d.s. for 14 days (OA); (ii) A 1 g b.d. + clarithromycin (C) 500 mg b.d. for 7 days (AC); (iii) C 250 mg b.d. + metronidazole (M) 500 mg b.d. for 7 days (CM); (iv) O 20 mg b.d. + C 250 mg b.d. + M 500 mg b.d. for 7 days (MOC); or (v) O 20 mg b.d. + C 500 mg b.d. + A 1 g b.d. for 7 days (OAC). Repeat breath tests were done at 6 weeks to assess H. pylori status. RESULTS:Three hundred and two H. pylori-positive subjects at 25 centres received medication. Intention-to-treat cure rate was significantly higher for OAC (82%) than for MOC (67%), CM (59%), AC (18%) or OA (58%), Per-protocol cure rates were 85% for OAC and 75% for MOC. Discontinuation of therapy due to a side-effect occurred in 0-3% of each study group. CONCLUSIONS:One-week twice-daily triple therapy with omeprazole, amoxycillin and clarithromycin provides the best rate of eradication of the five regimens studied. However, treatment in the US for 7 days may be unable to achieve eradication rates of > or = 90% with proton pump inhibitor-based triple therapy.

journal_name

Aliment Pharmacol Ther

journal_title

Alimentary pharmacology & therapeutics

authors

Laine L,Frantz JE,Baker A,Neil GA

doi

10.1046/j.1365-2036.1997.00230.x

subject

Has Abstract

pub_date

1997-10-01 00:00:00

pages

913-7

issue

5

eissn

0269-2813

issn

1365-2036

journal_volume

11

pub_type

临床试验,杂志文章,多中心研究,随机对照试验

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