- Ability to undergo endoscopy with required biopsy
- Ages 1 through 5 years
- Endoscopically confirmed GERD by positive endoscopic evidence of reflux related
esophagitis or positive histologic evidence of esophagitis consistent with GERD Other
- History or presence of upper gastrointestinal anatomic or motor disorders
- Known current or active cow`s milk allergy
- Other exclusions apply.