View clinical trials related to Drug Interaction.
Filter by:This is a single-centre, open-label, fixed-sequence trial to evaluate the impact of C21 on the exposure of CYP1A2, CYP2C9, CYP3A4 and P-gp substrates in healthy volunteers.
The goal of this study is to 1. determine the most effective biological sampling method that best describe the pharmacokinetics nitazoxanide/tizoxanide and to; 2. evaluate the clinical significance of the pharmacokinetics interaction between nitazoxanide (1000mg twice daily) and atazanavir/ritonavir (300mg/100mg). Participants will be given 1000mg oral nitazoxanide taken twice daily for seven days. After a washout period of three weeks, they will receive 1000mg oral nitazoxanide with atazanavir/ritonavir (taken orally at 300/100 mg). Five millimetres of whole blood or swab or saliva samples will be collected from them at 0.5, 1, 2, 4, 6, 8 and 12 hours after dose on day 1, 5 and 7. The pharmacokinetic of nitazoxanide when administered alone and alongside atazanavir/ritonavir will be compared to see if concomitant administration of nitazoxanide and atazanavir/ritonavir affect nitazoxanide pharmacokinetics
This is a phase I, open-label, fixed design, drug-drug-interaction (DDI) study divided in 2 parts. Part I is designed to evaluate whether concomitant treatment with linaprazan glurate and clarithromycin, a strong inhibitor of cytochrome P450 3A4 (CYP3A4) and P-glycoprotein P (PgP), leads to an effect on the systemic exposure to linaprazan glurate and linaprazan and whether there is an effect on the pharmacokinetics of clarithromycin after a single dose of linaprazan glurate. Part II is designed to evaluate the effect of repeated doses of linaprazan glurate on the pharmacokinetics (PK) of a sensitive substrate of CYP3A (midazolam).
To investigate the effect of rifampicin and febuxostat on pharmacokinetics of methotrexate in healthy volunteers
This is a single center, open-label, fixed sequence Phase 1, drug-drug interaction (DDI) study in healthy subjects.
This study is a single-center, open-label, 2-cohort, multiple dose, fixed-sequence, DDI study in healthy adult subjects. Healthy volunteers will be administered multiple oral doses of ATI-2173 in combination with tenofovir disoproxil fumarate and assessed for safety and tolerability including blood tests to show how the body metabolizes and eliminates the investigational drug as well as how the investigational drug interacts with tenofovir disoproxil fumarate.
This project includes two separate pharmacokinetic studies with simvastatin and rosuvastatin, respectively. Each study is an open-label, single-dose, randomized, three-phase (no herbs, with green tea, with soy isoflavones) clinical pharmacokinetic study design with a wash-out of at least 4-weeks between phases. The aim is to examine whether green tea extract and soy isoflavones affect the pharmacokinetics of simvastatin and rosuvastatin in healthy subjects and whether these interactions are influenced by polymorphisms in the relevant drug transporters, solute carrier 1B1 (SLCO1B1) and adenosine triphosphate (ATP) binding cassette G2 (ABCG2) and to identify whether polymorphisms in drug transporters influence the pharmacokinetics of simvastatin and rosuvastatin. After informed consent is obtained, subjects are required to abstain from any prescription or non-prescription medications 2 weeks before and throughout the study. Subjects are given a single dose of simvastatin 20 mg (Zocor®, MSD) or rosuvastatin 10 mg (Crestor®, Astra Zeneca) on 3 occasions: 1. without herbs; 2. with green tea extract; 3. with soy isoflavones extract. The green tea extract and soy isoflavones extract are given at a dose containing epigallocatechin gallate (EGCG) 800 mg once daily or isoflavones 120 mg once daily for 14 days before statin dosing with at least 4-week washout period between phases. Blood samples are taken at intervals from 0 to 24 hours on the statin dosing days. During the study, subjects are reminded frequently of the requirements on diet.
This is a single center, open-label, fixed sequence, drug-drug interaction (DDI) study in healthy subjects.
The purpose of this research study is to test the safety, tolerability, drug interactions with buprenorphine-naloxone, and effectiveness lemborexant when used to treat Opioid Use Disorder.
The purpose of this is to evaluate the effect of food and the effect of a proton pump inhibitor (rabeprazole) on the pharmacokinetics of fruquintinib.