Protonix Treatment of Maintenance of Healing in Pediatric Participants Aged 1-11 Years and 12-17 Years

Inclusion Criteria: * Participants must have a documented erosive lesion with an Los Angeles (LA) Grade of A to D prior to starting Proton Pump Inhibitor treatment: * Capable of giving signed informed consent/assent * Willingness and ability of the participant or parent/legal guardian to complete the eDiary * Willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures, including the use of the eDiary. * Male and female participants aged 1 to 17 years. * Minimum body weight 7 kilogram and weight at least at the 5th percentile per the Center for Disease Control standard age and weight chart, for the participant's age. * To be considered a female of non childbearing potential, the participant must meet at least 1 of the following criteria : * Premenarchal: The investigator (or other appropriate staff) must discuss the participant's premenarchal status with the participant and parent/legal guardian at office visits and during telephone contacts, as participants who achieve menarche during the study would no longer be considered "female participants of non childbearing potential" and must comply with the protocol requirements applicable to women of childbearing potential. Exclusion Criteria: * Previous administration of an investigational drug or vaccine within 30 days (or as determined by the local requirement) or 5 half-lives preceding the first dose of study intervention used in this study (whic…