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

NCT ID: NCT05320796

Last Updated: 2025-05-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-11-01

Study Completion Date

2027-12-31

Brief Summary

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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.

Detailed Description

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To assess the clinical effect of the esomeprazole absorption after Roux-en-Y gastric bypass, we intend to measure the serum concentration after administration as intact capsules or open in solution and correlate it with the pH in the gastric pouch, measured with the wireless BRAVOTM capsule pH measurement system. The feasibility and safety of the wireless pH monitoring system has been shown before.

The patients who met all the inclusion criteria undergo a routine upper endoscopy one year after RYGB. At the end of the endoscopy, the 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.

Conditions

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Obesity Gastric Reflux Ulcer, Gastric

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Esomeprazol administered in tablets (Esomeprazol MUT Sandoz® 40mg) ¨ or in solution (Esomeprazol MUT Sandoz® 40mg in 10ml tap water)
Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Investigators

Study Groups

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Solution

Esomeprazol MUT Sandoz® 40mg as a single dose will be dissolved in 10ml tap water to create a solution and then applied per oral

Group Type EXPERIMENTAL

upper endoscopy

Intervention Type 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.

Tablet

Esomeprazo MUT Sandozl® 40mg tablet as a single dose will be given orally

Group Type ACTIVE_COMPARATOR

upper endoscopy

Intervention Type 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.

Interventions

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upper endoscopy

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.

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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blood sample

Eligibility Criteria

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Inclusion Criteria

* 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
* No symptoms related to gastro-esophageal reflux or marginal ulcers (i.e. epigastric pain, retrosternal burning, regurgitation)
* Informed consent as documented by signature

Exclusion Criteria

* 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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Prof Urs Zingg

OTHER

Sponsor Role lead

Responsible Party

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Prof Urs Zingg

Prof. Dr.

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Urs Zingg, Prof.

Role: PRINCIPAL_INVESTIGATOR

Limmattal Hospital

Locations

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Spital Limmattal

Schlieren, , Switzerland

Site Status RECRUITING

Countries

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Switzerland

Central Contacts

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Urs Zingg, Prof.

Role: CONTACT

+41 44 733 21 26

Patrizia Heeb

Role: CONTACT

+41 44 736 85 76

Facility Contacts

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Patrizia Heeb

Role: primary

Other Identifiers

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LS-202112

Identifier Type: -

Identifier Source: org_study_id

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