Effects of bariatric surgery on the medication chlorprothixene

Bariatric Surgery and Pharmacokinetics of Chlorprothixene: BAR-MEDS Chlorprothixene

Norwegian University of Science and Technology · NCT03449485

This study looks at how bariatric surgery affects how well the medication chlorprothixene works in patients preparing for gastric bypass or sleeve gastrectomy.

Quick facts

Study typeObservational
Enrollment12 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorNorwegian University of Science and Technology (other)
Locations1 site (Trondheim)
Trial IDNCT03449485 on ClinicalTrials.gov

What this trial studies

This observational study investigates how bariatric surgery, specifically gastric bypass and sleeve gastrectomy, affects the pharmacokinetics of chlorprothixene, a medication used for various psychiatric conditions. It aims to understand changes in gastric pH, gastric emptying time, and gastrointestinal transit-time that may influence the biological availability of this drug. The study will involve patients preparing for these surgical procedures in Central Norway, focusing on how their surgery impacts medication absorption and efficacy.

Who should consider this trial

Good fit: Ideal candidates are Norwegian citizens preparing to undergo gastric bypass or sleeve gastrectomy.

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 management for patients undergoing bariatric surgery, ensuring they receive effective dosages of chlorprothixene.

How similar studies have performed: While there is limited research specifically on chlorprothixene, studies on the pharmacokinetic effects of bariatric surgery on various medications have shown promising results.

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.

View on ClinicalTrials.gov →

Conditions: Obesity, Morbid, Bariatric surgery, Gastrointestinal tract, Biological availability, Pharmacokinetics, Chlorprothixene

Last reviewed 2026-05-15 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.