Investigating how bariatric surgery affects the absorption of valsartan

Bariatric Surgery and Pharmacokinetics of Valsartan: BAR-MEDS Valsartan

Observational Norwegian University of Science and Technology · NCT03535376

This study is testing how bariatric surgery affects how well the heart medication valsartan is absorbed in patients getting gastric bypass or sleeve gastrectomy.

Quick facts

Study typeObservational
Enrollment12 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorNorwegian University of Science and Technology Academic / other
Locations1 site (Trondheim)
Trial IDNCT03535376 on ClinicalTrials.gov

What this trial studies

This observational study examines the pharmacokinetics of valsartan in patients preparing for gastric bypass or sleeve gastrectomy. It aims to understand how changes in gastric pH, gastric emptying time, and gastrointestinal transit time due to bariatric surgery may influence the biological availability of this medication. By analyzing these effects, the study seeks to provide insights into optimal medication management for patients undergoing these surgical procedures.

Who should consider this trial

Good fit: Ideal candidates are Norwegian citizens preparing for gastric bypass or sleeve gastrectomy in Central Norway.

Not a fit: Patients who have previously undergone resections in the gastrointestinal tract may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved medication dosing and effectiveness for patients who have undergone bariatric surgery.

How similar studies have performed: While there is limited research specifically on valsartan, similar studies have shown that bariatric surgery can significantly alter pharmacokinetics of various medications.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Preparing to undergo gastric bypass or sleeve gastrectomy in Central Norway
* Being a Norwegian citizen

Exclusion Criteria:

* Having previously undergone resections in the GI-tract

Where this trial is running

Trondheim

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Obesity, MorbidBariatric surgeryGastrointestinal tractBiological availabilityPharmacokineticsValsartan
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.