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ASTERIX: Low Dose ASA and Nexium

This study has been completed.
Information provided by:
AstraZeneca Identifier:
First received: November 9, 2005
Last updated: March 11, 2009
Last verified: March 2009
The purpose of the study is to evaluate the effect of esomeprazole 20 mg od versus placebo for the prevention of gastric and/or duodenal ulcers in patients taking low-dose ASA.

Condition Intervention Phase
Gastroesophageal Reflux Drug: Esomeprazole Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Prevention
Official Title: A Randomized Double-Blind Placebo-Controlled Study to Assess the Prevention of Low-Dose Acetylsalicylic Acid (ASA) Associated Gastroduodenal Lesions and Upper Gastrointestinal Symptoms in Patients Taking Esomeprazole 20 mg Once Daily for 26 Weeks.

Resource links provided by NLM:

Further study details as provided by AstraZeneca:

Primary Outcome Measures:
  • The primary variable is presence of gastric and/or duodenal ulcers at endoscopy over a 26-week period in patients taking low-dose ASA.

Secondary Outcome Measures:
  • LA classification for the oesophagus at endoscopy. Upper GI symptoms assessed by the investigator at each study visit.

Estimated Enrollment: 960
Study Start Date: May 2004
Study Completion Date: September 2005

Ages Eligible for Study:   60 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • A clinical diagnosis of a condition (cardiovascular and/or cerebrovascular protection or other reasons) that requires daily intake of low-dose ASA, 75-325 mg, and is expected to continue for the duration of the study (daily is defined as at least 5 days per week).
  • Age >= 60 years.
  • No gastric and/or duodenal ulcer at the baseline endoscopy.
  • H. pylori negative by serology test at screening.

Exclusion Criteria:

  • Upper GI symptoms
  • Erosive oesophagitis
  • Malignancy
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00251966

  Show 93 Study Locations
Sponsors and Collaborators
Study Director: AstraZeneca Nexium Medical Science Director, MD AstraZeneca
Principal Investigator: Neville Yeomans, MD Perth Medical School
  More Information Identifier: NCT00251966     History of Changes
Other Study ID Numbers: D9617C00011
Study First Received: November 9, 2005
Last Updated: March 11, 2009

Keywords provided by AstraZeneca:
Prevention of gastroduodenal lesions
erosive oesophagitis
upper GI symptoms

Additional relevant MeSH terms:
Gastroesophageal Reflux
Esophageal Motility Disorders
Deglutition Disorders
Esophageal Diseases
Gastrointestinal Diseases
Digestive System Diseases
Anti-Ulcer Agents
Gastrointestinal Agents
Proton Pump Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on September 21, 2017