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Barrett's Esophagus - 315 - 3 Way Cross Over

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00637988
First Posted: March 18, 2008
Last Update Posted: January 21, 2011
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
AstraZeneca
  Purpose
This study evaluates PGE2 production, COX-2 enzyme activity and PCNA expression in Barrett's metaplastic tissue. All patients will have a baseline endoscopy with multiple biopsies. The patients will then be receive four dosing regimens (esomeprazole, esomeprazole and aspirin, esomeprazole and rofecoxib, or rofecoxib alone) consecutively each for a 10 day dosing period, whilst undergoing further follow up endoscopies and multiple biopsies.

Condition Intervention Phase
Barrett's Esophagus Drug: Esomeprazole Drug: Aspirin Drug: Rofecoxib Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Multicenter, Open-label, Four-way Crossover Study of the Effects of Esomeprazole, Aspirin and Rofecoxib on Prostaglandin (PGE2) Production, Cyclooxygenase-2 Enzyme Activity and PCNA Expression in Patients With Barrett's Esophagus

Resource links provided by NLM:


Further study details as provided by AstraZeneca:

Primary Outcome Measures:
  • Measure PGE production in Barrett's metastatic tissue & determine the reduction from baseline of PGE production would be equivalent on Day 10 in esomeprazole 40mg bid + aspirin treatment compared to esomeprazole 40 mg bid + rofecoxib 25 mg qd treatment [ Time Frame: Baseline esophageal biopsies will be taken and thereafter at Day 10 in each treatment period. ]

Secondary Outcome Measures:
  • To determine in which of the four treatment groups the reduction in the baseline in PGE2 production, COX-2 enzyme activity and PCNA expression in Barrett's metaplastic tissue is the greatest. [ Time Frame: Baseline esophageal biopsies will be taken and thereafter at Day 10 in each treatment period ]

Estimated Enrollment: 32
Study Start Date: April 2002
Study Completion Date: June 2003
Primary Completion Date: June 2003 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
Nexium 40mg
Drug: Esomeprazole
40mg twice daily
Other Name: Nexium
Experimental: 2
Nexium 40mg + aspirin
Drug: Esomeprazole
40mg twice daily
Other Name: Nexium
Drug: Aspirin
Experimental: 3
Nexium 40mg + Rofecoxib 25 mg
Drug: Esomeprazole
40mg twice daily
Other Name: Nexium
Active Comparator: 4
Rofecoxib 25mg
Drug: Rofecoxib
25mg once daily

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • A biopsy-proven diagnosis of Barrett's esophagus segment length greater than 2cm with no dysplasia or adenocarcinoma.
  • Clinically normal laboratory results and physical findings at screening.

Exclusion Criteria:

  • A history of esophageal, gastric or duodenal surgery, including antireflux surgery or endoscopic antireflux procedures, except for simple closure of an ulcer.
  • Evidence of the following diseases or conditions:
  • Barrett's esophagus less than or greater than 2cm that is positive for high grade dysplasia or adenocarcinoma
  • Signs and symptoms of gastric outlet obstruction
  • Active peptic ulcer disease
  • severe liver disease
  • Pancreatitis
  • Malabsorption
  • Active inflammatory bowel disease
  • Severe pulmonary, cardiovascular or renal disease
  • Impaired renal function or abnormal urine sediment on repeated examinations
  • esophageal stricture or active, severe esophagitis.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00637988


Sponsors and Collaborators
AstraZeneca
Investigators
Study Director: Paula Fernstrom Nexium Global Product Director, AstraZeneca
  More Information

Responsible Party: Tore Lind, MD - Nexium Medical Science Director, Astra Zeneca
ClinicalTrials.gov Identifier: NCT00637988     History of Changes
Other Study ID Numbers: 316
D9612L00057 ( Other Identifier: AZ )
First Submitted: March 11, 2008
First Posted: March 18, 2008
Last Update Posted: January 21, 2011
Last Verified: January 2011

Keywords provided by AstraZeneca:
Barrett's Esophagus
Nexium

Additional relevant MeSH terms:
Barrett Esophagus
Digestive System Abnormalities
Digestive System Diseases
Esophageal Diseases
Gastrointestinal Diseases
Aspirin
Rofecoxib
Esomeprazole
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Analgesics
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents
Antirheumatic Agents
Fibrinolytic Agents
Fibrin Modulating Agents
Molecular Mechanisms of Pharmacological Action
Platelet Aggregation Inhibitors
Cyclooxygenase Inhibitors
Enzyme Inhibitors
Antipyretics
Anti-Ulcer Agents
Gastrointestinal Agents
Proton Pump Inhibitors
Cyclooxygenase 2 Inhibitors