Efficacy of low-dose lansoprazole in the treatment of non-erosive gastrooesophageal reflux disease. Influence of infection by Helicobacter pylori
Abstract
INTRODUCTION
Proton pump inhibitors (PPIs) are the most effective drugs to cure peptic esophagitis and control the symptoms of gastroesophageal reflux disease (GERD). In most patients with GERD esophagitis is not detected by endoscopy, which represents GERD with a negative endoscopy or non-erosive reflux disease (NERD). The influence of infection by H. pylori in the evolution of GERD is controversial since a protective action is identified by some studies, but not all. We conducted a clinical trial to assess the efficacy of lansoprazole 15 mg/day in the initial control of NERD symptoms, and as a secondary endpoint the impact of H. pylori infection on response to treatment.
PATIENTS AND METHODS
A pilot, single-center clinical trial was conducted--single-blind regarding the experimental medication (unknown to patients), and double-blind regarding the information concerning H. pylori infection. Sixty (60) patients with NERD were initially included, who had suffered from daytime or nocturnal heartburn for 1-2 days in each of the last two weeks. Nine patients were excluded for failing to comply with the study protocol. The 51 remaining patients, 35 women and 16 men, with a mean age of 49 years, comprised the per protocol analysis population. Patients received treatment for two weeks with a capsule of the study medication (15 mg/day of lansoprazole), with daily controls on the presence and severity of daytime and nocturnal heartburn. Treatment was considered effective when, upon…
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