ongoing trials trial from www.clinicaltrials.gov PPIs and Fat Absorption in CF and EPI - Phase 2 - Recruiting Year: 2018 Date: June 1, 2018 Author: Children's Hospital of Philadelphia|Chiesi USA Source https://ClinicalTrials.gov/show/NCT03551691 Study design (if review, criteria of inclusion for studies) Interventional - Allocation: Randomized|Intervention Model: Crossover Assignment|Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)|Primary Purpose: Treatment Participants Pancreatic Insufficiency|Cystic Fibrosis - 12 Years and older (Child, Adult, Older Adult) Interventions Drug: Omeprazole 40 MG|Drug: Placebo oral capsule Outcome measures Coefficient of fat absorption|Duodenal pH|Fat absorption via Malabsorption Blood Test