Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Background: Sustained intragastric antibiotic exposure is important for Helicobacter pylori eradication, yet little is known about gastric pharmacology of commonly used H. pylori regimens. For rifabutin, differing intragastric concentrations based on dosing regimen may account for differences in reported eradication rates.
Aim: To compare intragastric rifabutin concentrations between low-dose rifabutin (50 mg three time daily; as in RHB-105) and generically dosed rifabutin 150 mg once daily, 150 mg twice daily, and 300 mg once daily using a validated Physiologically-based pharmacokinetic (PBPK) model.
Methods: We obtained plasma pharmacokinetic data from the RHB-105 clinical development programs and used it to develop and validate a whole-body PBPK model using PK-SIM software. We modified the existing rifabutin model to include the impact of omeprazole on gastric pH and emptying time. Modelled intragastric rifabutin exposure was expressed as the time that each regimen maintained its concentration ≥MIC .
Results: Rifabutin 50 mg three times daily achieved significantly longer times with intragastric concentration above MIC (22.3 ± 1.1 h) than 150 mg once daily (8.3 ± 1.7 h), 150 mg twice daily (16.3 ± 2.3 h), or 300 mg once daily (8.5 ± 1.9 h) while providing the lowest mean maximal plasma concentration and mean area under the plasma concentration-time curve of all regimens studied.
Conclusions: PBPK modelling showed rifabutin 50 mg three times daily had higher intragastric exposure times than 150 mg once daily or twice daily, or 300 mg once daily. This low-dose rifabutin regimen provides the highest potential for H. pylori eradication while minimising systemic rifabutin exposure.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/apt.17526 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Health Care Professionals' Experiences Regarding Facilitators of and Barriers to Sustained Use of Social Robot Ivy for People With Intellectual Disabilities: Qualitative Interview Study.
J Med Internet Res
September 2025
School of Advertising, Marketing and Public Relations, Faculty of Business and Law, Queensland University of Technology, Brisbane, Australia.
Background: Labor shortages in health care pose significant challenges to sustaining high-quality care for people with intellectual disabilities. Social robots show promise in supporting both people with intellectual disabilities and their health care professionals; yet, few are fully developed and embedded in productive care environments. Implementation of such technologies is inherently complex, requiring careful examination of facilitators and barriers influencing sustained use.
View Article and Find Full Text PDFEvaluation of nutritional status and swallowing functions of children with neuromuscular disordes.
Neuro Endocrinol Lett
September 2025
Department of Pediatric Neurology, Cukurova University Faculty of Medicine, Adana, Turkey.
Objective: It is important to raise awareness of the nutritional problems that can be overlooked during the follow-up visits with children who suffer from neuromuscular diseases, as these dietary differences may lead to additional neurological and systemic problems and impair the quality of life of the patient. The aim of this study was to evaluate the nutritional status of children with neuromuscular disorders and to prevent possible complications by recognizing possible nutritional problems in advance.
Methods: Patients who applied to the outpatient clinic at Cukurova University, Faculty of Medicine, Department of Pediatric Neurology beginning in April 2022 with a neuromuscular disorder diagnosis were followed up with and were included in the study.
Comparative effectiveness and safety of second-line therapies and dosing regimens for advanced hepatocellular carcinoma: a network meta-analysis.
Eur J Gastroenterol Hepatol
September 2025
Department of General Medicine, Affiliated Anqing First People's Hospital of Anhui Medical University, Anqing, Anhui, China.
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-associated death globally. Second-line therapies are crucial for improving survival and quality of life among individuals suffering from advanced HCC who have not responded to first-line therapies. This study sought to evaluate the safety and efficacy of different second-line therapies for advanced HCC by network meta-analysis.
View Article and Find Full Text PDFComparison of the ONSTEP and Lichtenstein techniques for inguinal hernia repair-early results of a prospective study.
Pol Merkur Lekarski
September 2025
DEPARTMENT OF GENERAL, ONCOLOGIC AND METABOLIC SURGERY, INSTITUTE OF HEMATOLOGY AND TRANSFUSION MEDICINE, WARSAW, POLAND.
Objective: Aim: The study aims to evaluate the impact of the ONSTEP technique on the intensity of the systemic inflammatory response syndrome (SIRS) and the outcomes of inguinal hernia treatment compared to the Lichtenstein technique. .
Patients And Methods: Materials and Methods: In 41 men randomized into 2 study groups, unilateral inguinal hernia repair was performed using the ONSTEP technique in group O and the Lichtenstein technique in group L.
Differential Effects of Wildfire Smoke Pm Exposure on Respiratory Disease Emergency Department Visits in the Western United States.
Am J Respir Crit Care Med
September 2025
Emory University, Atlanta, Georgia, United States;
Background: Wildfires significantly affect air quality in the Western United States. Although prior research has linked wildfire smoke PM to respiratory health outcomes, these studies typically have limited geographic and temporal coverage, lacking evidence from multiple states over extended periods.
Methods: We obtained data on over 6 million emergency department (ED) visits for respiratory diseases, including asthma, chronic obstructive pulmonary disease (COPD), upper respiratory infections (URI), and bronchitis, from five states in the Western US during 2007-2018.