Four-week Omeprazole Treatment of Non-erosive Reflux Disease in a Japanese Population

A Double-blind, Randomised, Parallel-group, Multicentre, Phase III Study to Compare the Efficacy of Omeprazole 20mg and 10mg od for the Four-week Treatment of Non-erosive Reflux Disease (NERD) With That of Placebo od and to Investigate Safety

The purpose of this study is to study safety and efficacy of omeprazole standard treatment in a Japanese non-erosive reflux disease population.

Inclusion Criteria:

• Patients who identified their predominant symptom as heartburn and were classifiend as Grande M or N according to Hoshihara's modofied version of Los Angeles Classification at esophagogastroduodenoscopy.

Exclusion Criteria:

• Patients with any ongoing gastrointestinal bleeding at the time of esopgahogastroduodenoscopy, patients with any history of erosive esophagitis or any other major diseases or concommittant drugs likely to interfere with the evaluation of this study