Bariatric Surgery Clinical Trial
Official title:
Prospective, Monocentric Study of Dexlansoprazole Absorption Preoperative and 6 and 12 Months After Proximal Roux-en-Y Gastric Bypass Surgery and of the Incidence of Marginal Ulcers 6 and 12 Months After Surgery
In Switzerland, the most commonly performed bariatric procedure is the proximal Roux-en-y gastric Bypass surgery. Since marginal ulceration is a known complication after this Operation, a Proton pump Inhibitor (PPI) prophylaxis is prescribed postoperatively. Bariatric surgery may have an impact on the absorption and consequently on the efficacy of drugs. There are only very little data on the pharmacokinetics of PPIs following PRYGB. The aim of this study is to analyze the serum concentration of dexlansoprazole preoperative and after PRYGB surgery in patients taking PPI prophylaxis and to examine the incidence of marginal ulcers postoperatively in the same population.
This prospective, monocentric study includes 30 patients undergoing a proximal Roux-en-Y gastric Bypass surgery and receiving 6 months of postoperative PPI prophylaxis with Dexilant (dexlansoprazole). The aim is to examine if the LPRYGB has an impact on the absorption of dexlansoprazole. Peripheral blood samples from the study participants are obtained at fixed time points after oral Administration of a capsule Dexilant preoperatively as well as 3 and 6 months after surgery. The incidence of marginal ulceration in the same patient population is assessed by upper endoscopy 6 and 12 months after surgery. The surgery, the PPI prophylaxis and the upper endoscopy 12 months post-surgery aren't for study purpose. Data collection is made by measuring serum drug concentration, patient questionnaires, pill count and upper endoscopy. ;
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