Because of several prospective benefits, binimetinib (BMT)-venetoclax (VTC) combination can be a better therapeutic strategy to treat cancer. An LC-MS/MS method for simultaneous quantification of BMT and VTC in rat plasma has been developed and validated. Specificity, accuracy, precision and stability results met the acceptance criteria for validation. Accuracy and precisions at all quality control levels were <15%. The study revealed that co-administration of BMT and VTC has no significant effect on their pharmacokinetics. The developed method can provide accurate results for quantification of BMT and VTC over the range of 5-500 ng/ml. The reported pharmacokinetic interaction study results will be useful for future consideration of the combined treatment of BMT and VTC in anticancer chemotherapy regimens.
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http://dx.doi.org/10.4155/bio-2021-0207 | DOI Listing |
Molecules
January 2025
Department of Environmental Chemistry and Bioanalytics, Gagarina 7, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Torun, Poland.
Bisphenols may negatively impact human health. In this study, we propose the use of HPLC-FLD for the simultaneous determination of bisphenols in pericardial fluid samples collected from patients with coronary artery disease undergoing coronary artery bypass surgery. For sample preparation, a fast, simple, and "green" DLLME method was used, achieving mean recovery values in the range of 62%-98% with relative standard deviations between 2% and 6% for all analytes.
View Article and Find Full Text PDFBioorg Chem
January 2025
Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford BD7 1DP, United Kingdom. Electronic address:
Withanone (WN), a bioactive phytochemical isolated from the medicinal herb Withania somnifera, has shown multiple pharmacological and therapeutic successes, including neuroprotective and anti-cancer activities. However, detailed pharmacokinetic (PK) properties of pure WN were not well defined. Pharmacokinetic (PK) characteristics, dose proportionality, and absolute bioavailability of pure WN were explored in rats using an efficient, reliable, and sensitive LC-MS/MS assay to address this gap.
View Article and Find Full Text PDFAnal Bioanal Chem
January 2025
Chemical Sciences Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD, 20899, USA.
Commutability is where the measurement response for a reference material (RM) is the same as for an individual patient sample with the same concentration of analyte measured using two or more measurement systems. Assessment of commutability is essential when the RM is used in a calibration hierarchy or to ensure that clinical measurements are comparable across different measurement procedures and at different times. The commutability of three new Standard Reference Materials (SRMs) for determining serum total 25-hydroxyvitamin D [25(OH)D], defined as the sum of 25-hydroxyvitamin D [25(OH)D] and 25-hydroxyvitamin D [25(OH)D], was assessed through an interlaboratory study.
View Article and Find Full Text PDFJ Pharm Biomed Anal
December 2024
Global Drug Metabolism and Pharmacokinetics, Eisai Co., Ltd., Tokodai 5-1-3, Tsukuba-shi, Ibaraki 300-2635, Japan; Laboratory of Genomics-based Drug Discovery, Faculty of Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan. Electronic address:
E6011 is a monoclonal antibody that is currently under development for the treatment of rheumatoid arthritis. While ligand binding assays (LBAs) are typically employed for the determination of therapeutic antibodies, ultra-performance liquid chromatography with tandem mass spectrometry (UPLC-MS/MS) represents an alternative platform. E6011 in monkey serum was treated with ammonium sulfate to obtain pellets for subsequent processing.
View Article and Find Full Text PDFAAPS J
January 2025
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201210, China.
Antibody-drug conjugates (ADCs) are intricate compounds that pose significant challenges in bioanalytical characterization. Therefore, multiple bioanalytical methods are required to comprehensively elucidate their pharmacokinetic (PK) profiles. In this study, we investigated DS001, an ADC consisting of a humanized monoclonal antibody (hRS7), a cleavable chemical linker, and the microtubule inhibitor monomethyl auristatin E (MMAE), with a drug-to-antibody ratio (DAR) of 8.
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