The Bioavailability and Effect on Pouch pH of Esomeprazole After Gastric Bypass

Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
Age18+
SponsorProf Urs Zingg

About this trial

The objective of this study is to investigate the effect of Esomeprazol administered in tablets (Esomeprazol MUT Sandoz® 40mg) or in solution (Esomeprazol MUT Sandoz® 40mg in 10ml tap water) on acid production in the gastric pouch by measuring the intragastric pH and the serum concentration of esomeprazole.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Proximal Roux-en-Y gastric bypass with linear stapled anastomosis 12 months prior to the study investigation

Routine administration of proton pump inhibitors for 6 months postoperatively

No intake of proton pump inhibitors at least 4 weeks prior to study investigation

No marginal ulcers in upper endoscopy prior to placement of wireless BRAVO™ pH monitoring capsule

Disqualifiers

Known intolerance or allergy for Esomeprazol

Contraindication for upper endoscopy

Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant

Women who are pregnant or breast feeding Major hepatic dysfunction

Trial design

Design model

Parallel

Treatments tested in this trial

  • upper endoscopy

    Diagnostic test

    A wireless BRAVO™ - pH monitoring device is placed and the participant is discharged with ongoing pH monitoring. The next day, the participant is randomized to either receive Esomeprazol MUT Sandoz® tablet 40mg or Esomeprazol MUT Sandoz® 40mg in solution. Serum concentration of Esomeprazol is measured at 0, 60 and 120 minutes and the patient is discharged after. After 48 hours of pH monitoring, the patient returns the BRAVO™ - recorder, adverse events are assessed and the study is terminated.

Treatment groups

50 Participants
are divided into 2 treatment groups
Group A: SolutionExperimental treatment 1 intervention
Group B: TabletActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

pH

The primary outcome is the total time, in which the pH in the gastric pouch is \<4 measured with wireless BRAVO™ - pH monitoring.

Time frame
48 hours

Secondary outcomes

1

serum concentration

The main secondary outcome is the serum concentration of Esomeprazol in nanogramm per mililiter in the blood serum at 0, 60 and 120 minutes after drug administration either as tablet or in solution.

Time frame
2 hours after administration

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Prof Urs Zingg

Lead sponsor

Spital Limmattal Schlieren

Sponsor institution