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Taking people in NorwayNo phase

Bariatric Surgery and Pharmacokinetics of Quetiapine

Key facts

Where
Trondheim, NorwaySee the site

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 70 years old?

Where in Norway

  • St. Olavs University HospitalTrondheim, NorwayTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
Norwegian University of Science and Technology
Trial code
NCT03449472
Record updated
8 July 2026
Original description
Changes to gastric pH, gastric emptying time, gastrointestinal transit-time or the pre-systemic metabolizing effect of enzymes secreted in the mucosa may all alter the pharmacokinetics of medicines. These factors are potentially influenced by bariatric surgery. Little is so far known about how gastric bypass and sleeve gastrectomy impacts the biological availability of medication. In this study the pharmacokinetic effects of bariatric surgery on quetiapine are investigated.Read full original descriptionShow less

Bariatric Surgery and Pharmacokinetics Quetiapine: BAR-MEDS Quetiapine

Changes to gastric pH, gastric emptying time, gastrointestinal transit-time or the pre-systemic metabolizing effect of enzymes secreted in the mucosa may all alter the pharmacokinetics of medicines. These factors are potentially influenced by bariatric surgery. Little is so far known about how gastric bypass and sleeve gastrectomy impacts the biological availability of medication. In this study the pharmacokinetic effects of bariatric surgery on quetiapine are investigated.

Inclusion: Preparing to undergo gastric bypass or sleeve gastrectomy in Central Norway; Being a Norwegian citizen.

Exclusion: Having previously undergone resections in the GI-tract.

ClinicalTrials.gov NCT03449472