Pharmacokinetics

This is a Phase I clinical trial (protocol number: YR-011-B01) sponsored by Hangzhou Yirui Pharmaceutical Technology Co., Ltd., focusing on the novel oral small-molecule drug YR011 (active ingredient: PA032, a Kv1.3 channel blocker). The trial aims to evaluate the safety, tolerability, and pharmacokinetics (PK) of YR011 in healthy adult participants. The trial has two stages: Single Ascending Dose (SAD) and Multiple Ascending Dose (MAD), with about 64 participants total (32 per stage). Participants are divided into 4 cohorts per stage (8 people per cohort), randomized 6:2 to receive YR011 or placebo in a double-blind manner. For the SAD stage, 4 dose levels are tested as a single oral dose under fasting conditions; for the MAD stage, 4 dose levels are given twice daily for 7 days plus one extra dose on Day 8. Key procedures include screening (up to 28 days before enrollment), baseline assessments, drug administration, and follow-up (7 days for SAD, 14 days for MAD). Safety is the primary endpoint (measured by treatment-related adverse events), with secondary endpoints including PK parameters (e.g., plasma concentration, half-life) and dose accumulation. Eligible participants are 18-60 years old, healthy, and able to comply with trial procedures; those with major diseases, drug allergies, or recent medication use are excluded. The trial follows ICH-GCP and FDA regulations, with a Safety Review Committee overseeing dose escalation and safety monitoring. All data is collected via electronic case report forms (eCRFs) and kept confidential.

Evaluation of the pharmacokinetics of Hemay 5259 sustained-release tablets in healthy human subjects

This is a Phase 1, open-label, three-part, study in approximately 96 healthy adult participants between 18 and 55 years of age (both inclusive) (16 participants in Part 1, 20 participants in Part 2 and , and approximately 60 participants in Part 3). The study will be conducted at one clinical site in the United States. Participants in Part 1 and Part 2 may be conducted in parallel. The duration of an individual participation will be approximately 46 days for Part 1 , 43 days for Part 2 and 83 days for Part 3. All participants in Parts I und 2 will be screened within 28 days prior to dosing. All participants in Part 3 will be screened within 33 days prior to dosing. They will be admitted to the clinical research unit (CRU) the day prior to dosing and will remain in the CRU until the end of the PK sample collection period. All participants will return to the clinic for follow-up assessments 7 days ± 1 day after the last dose of study intervention. Participants in Part 3 will also return to the clinic for follow-up assessments 28 days ± 2 days and 42 days ± 2 days after the last dose of study intervention.

A randomized, multicenter, open-label, active-controlled Phase Ib study to evaluate the safety, tolerability, pharmacokinetics, and preliminary efficacy of multiple intravaginal doses of GenSci142 in patients with bacterial vaginosis (BV).

This is a Phase I, single-center, double blind, placebo-controlled, parallel-group, randomized trial designed to evaluate the PK, cardiodynamic ECG effects, safety, and tolerability of single oral doses of linaprazan glurate. The trial will explore the PK properties of linaprazan glurate and linaprazan as well as the cardiodynamic ECG effects, safety, and tolerability after the administration of single doses: 300 mg and 600 mg in Part I of the trial, using formulation A of linaprazan glurate, as well as 150 mg, 275 mg, and up to 2 additional dose levels, using formulation C of linaprazan glurate to reach target linaprazan mean Cmax exposure (5222 nmol/L).

The purpose of this study is to assess pharmacokinetics of liposomal bupivacaine (Exparel) after multilevel intercostal injections of this local anesthetic for pain control during and after thoracoscopic surgeries. The specific aim of this study is to evaluate plasma concentration of bupivacaine after intraoperative intercostal injections of 266 mg of liposomal bupivacaine and compare it to plasma concentrations of bupivacaine after intercostal injections of 2mg/kg of 0.5% plain Bupivacaine with maximal dose of 30 ml or 150 mg. The hypothesis of the study is that plasma concentration of bupivacaine after intercostal injections of 266 mg of liposomal bupivacaine will be similar to concentrations after injections of plain bupivacaine, and will remain below the toxic level threshold range of 2000-3000 ng/mL (2-3 mg/L) at which central nervous system and cardiovascular adverse events would be expected to occur. The secondary objective is to evaluate if intercostal injections of 266 mg of liposomal bupivacaine will significantly reduce opioid consumption and postsurgical pain, within the first 48 hours and up to 3 months after minimally invasive thoracic surgeries, to determine if both acute and chronic post-thoracotomy pain can be decreased by intraoperative intercostal injections of liposomal bupivacaine. Additionally, the rate of pneumonia, the rate of atrial fibrillation and length of hospital stay will be assessed as secondary outcomes after thoracic surgeries. These outcomes can be affected by the level of postoperative pain and inflammation. Significance of this study: If positive, the results of this research have the potential to significantly improve pain management after thoracoscopic surgery. Based on prior experience, prolonged analgesia after liposomal bupivacaine injection is safe, and may help reduce perioperative opioid consumption and decrease opioid related complications. It will improve patient comfort, eliminate need for indwelling neuraxial catheters and risks associated with them.

A single dose dose study to assess the pharmacokinetics (PK) of oxycodone, when PF614 is administered alone and with nafamostat as an immediate-release (IR) solution and/or extended-release(ER) capsule prototypes.

This study is being conducted to evaluate how different formulations of the Feel Free® Tonic containing Kava, Kratom, or a combination of both are processed in the body in healthy adults. The goal is to compare the pharmacokinetic profiles and safety of the combined herbal formulation with Kava alone and Kratom alone to better understand how these ingredients behave when taken individually versus together.

Periodontitits is a bacteria induced inflammatory disease that destroys the supporting tissues of the tooth and leads to tooth loss. Treatment consists mainly of the mechanical cleaning of the tooth surfaces in order to remove the bacterial deposits (plaque and calculus). This procedure can reduce the level of pathogenic bacteria but it can not eradicate them. In severe cases, for the complete resolution of the disease, the elimantion of certain species of bacteria is needed. In order to achieve that, the combination of different regimens of antibiotics adjunctive to the mechanical treatment has been proposed. However, dosage and duration of antimicrobial therapy should be optimal and not excessive as issues may arise related to increased antimicrobial resistance in the population and the individual due to habitual prescription of wide-spectrum antibiotic regimens, horizontal gene transfer and genetic mutation. In the present study, in an effort to optimize the dosage and duration of the antimicrobial regimen, we will determine the pharmacokinetics (PK) and pharmacodynamic (PD) properties of the MET-AMO combination and of AZI in Gingival Crevicular Fluid (GCF), saliva and serum in severe periodontitis patients during and after either a 3-day or a 7-day course of treatment.

Caspofungin is an anti-fungal drug mainly metabolized by the liver. The pathophysiological status of children with severe infection will affect the metabolism of caspofungin in the body especially in the case of liver dysfunction. There is little metabolism of caspofungin through the kidney and continuous renal replacement therapy and renal function have little influence on the pharmacokinetics of caspofungin. The study aim to investigate PK/PD of caspofungin in children with specific pathophysiological conditions, such as liver insufficiency, hypoproteinemia, ECMO treatment, or sepsis.

Pharmacokinetics of antibiotics in critically ill neonates, infants and children on extracorporeal membrane oxygenation (ECMO).

Pharmacokinetics of antibiotics in critically ill neonates, infants and children

The goal of this clinical trial is to evaluate the safety and tolerability of RCS-21 in healthy volunteers. Participants will be asked to inhale a single dose of RCS-21 and their health status will be constantly monitored.

The purpose of this research is to assess the effects of smoked cananbis when cannabis is smoked during periods of cannabis use as usual and after a brief period of abstinence.

This is a Phase 1, open-label, single-dose crossover study designed to evaluate the effect of food on the pharmacokinetics of DW-1021, a fixed-dose combination tablet containing pelubiprofen 45 mg and tramadol 45.9 mg. Fourteen healthy adult Vietnamese males will each receive DW-1021 once under fasting conditions and once under fed conditions, with a 14-day washout period in between. Blood samples will be collected to assess how food intake affects the absorption and exposure levels of both active ingredients. Safety, including adverse events, laboratory results, vital signs, and ECGs, will be closely monitored throughout the study.

This is a Phase 1 (healthy adult volunteers), 2-part, double-blind, randomized, placebo controlled trial to evaluate the safety and pharmacokinetic (PK) profiles of escalating single doses of AVR-48 versus placebo (SAD) and escalating multiple doses of AVR-48 versus placebo (MAD). SAD will be initiated first and include a sentinel dosing design. MAD will not utilize a sentinel design unless the safety monitoring committee requests the addition of sentinels. The MAD will be initiated once the lowest doses from SAD are deemed safe.

The objective of this study is to evaluate the pharmacokinetic characteristics of AG2304 in healthy subjects.

This project is aimed at understanding whether a new fast-dissolving cheek-administered cannabidiol strip will be absorbed better into the body than cannabidiol powder. The results of this study will help guide dosage formulation choices as well as dosing regimens in NFL athletes for concussion management.

The purpose of the study is to investigate the pharmacokinetics of oral dosage of Posaconazole which is routinely administered as a standard care prophylaxis for patients undergoing cancer treatments.

The aim of this study is to evaluate the efficacy of Eravacycline in the treatment of patients with bacterial infection and to assess the pharmacokinetics of Eravacycline and to establish a population pharmacokinetic model of Eravacycline.

The goal of this clinical trial to learn how MDMA is processed in people with abnormal liver function. The main questions it aims to answer are: Do people with abnormal liver function experience greater absorption of MDMA? Does the dose of MDMA need to be adjusted in people with abnormal liver function? Researchers will compare people with abnormal liver function to people with normal liver function. Participants will receive a single dose of MDMA then undergo periodic vitals measurements. They will remain at the study site for two more days undergoing more vitals measurements and having subjective effects and adverse events measured.

A DDI study consisting of 4 parts conducted as an open label, fixed sequence study in healthy adult subjects.

This prospective study will compare the pharmacokinetic exposure to liposomal amphotericin B between critically ill patients and non-critically ill (hematology) patients in an early and late exposure day.

The primary aim of the study is to determine the proportion of individuals receiving beta-lactam antibiotics at Imperial College Healthcare NHS Trust in whom drug concentration targets are achieved.

In 2020, only 16% of the Intensive Care Unit (ICU) patients achieved therapeutic drug concentrations after continuous administration of the first vancomycin dose. Many beneficial population pharmacokinetic (PPK) models are available however these are prevented from being widely implemented in daily practice due to the complexity. The aim of this study is to evaluate the effectiveness of individualized dosing with PPK models using a newly developed user-friendly pharmacokinetic (PK) tool. In a preceding retrospective study, the percentage of patients within the target range after initiation of continuous vancomycin increased from 28% to 39% (excluding CRRT and ECMO patients) with calculated concentrations based on theoretical dose adjustments. In this study we want to prospectively evaluate the concentration of vancomycin at 24, 28 and 72 hours after the start of treatment with individualized dosages based on (a combination) of available PPK models in 134 adult ICU and orthopedic patients.