Pharmacokinetics After Oral Intake

This prospective, open-label, non-randomized pharmacokinetic study will evaluate how Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy affect systemic exposure to single oral test doses of rosuvastatin and losartan. Sixty adults scheduled for bariatric surgery will enter one of two parallel groups according to the clinically selected operation (30 RYGB and 30 sleeve gastrectomy). Each participant will receive rosuvastatin 10 mg and losartan 25 mg once within 30 days before surgery and again approximately 12 weeks after surgery. Plasma samples collected before dosing and at 1.5 and 4 hours after dosing will be used with maximum a posteriori Bayesian estimation to estimate individual pharmacokinetic parameters. In the 30-participant RYGB group only, paired stool samples will be used to explore gut microbiota and untargeted fecal metabolomic changes. The primary objective is to compare within-participant changes and between-procedure differences in drug exposure after bariatric surgery.

The goal of this clinical trial is to evaluate the use of sulopenem etzadroxil plus probenecid in adolescent patients being treated for bacterial infection. The main questions it aims to answer are: Is sulopenem etzadroxil plus probenecid safe to use in adolescents? Is sulopenem etzadroxil plus probenecid tolerable when used in adolescents? When ingested, what does the adolescent body do to sulopenem etzadroxil plus probenecid, in terms of the movement of the drug into, through, and out of the body. Participants will receive standard of care antibiotics for their bacterial infection as directed by their physician. In addition, participants will be asked to take a single oral dose of sulopenem etzadroxil plus probenecid. Blood samples will be collected before the dose of sulopenem etzadroxil plus probenecid, as well as at specified timepoints after the dose. Likewise, urine will be collected at specified time periods after the dose. During the course of the study, data will be collected from participants including vital sign measurements, physical examination findings, and the details of any adverse events that are reported.