Human mistakes are still one of the main reasons of underlying regulatory affairs that in a compliance with FDA's Data Integrity and Analytical Quality by Design (AQbD) must be eliminated. To develop smooth, fast and robust methods that are free of human failures, a state-of-the-art automation was presented. For the scope of this study, a commercial software (DryLab) and a model mixture of 10 drugs were subjected to testing. Following AQbD-principles, the best available working point was selected and conformational experimental runs, i.e. the six worst cases of the conducted robustness calculation, were performed. Simulated results were found to be in excellent agreement with the experimental ones, proving the usefulness and effectiveness of an automated, software-assisted analytical method development.
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http://dx.doi.org/10.1016/j.jpba.2018.03.039 | DOI Listing |
J Pharm Anal
October 2024
National Key Laboratory of Chinese Medicine Modernization, State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
Identifying the compound formulae-related xenobiotics in bio-samples is full of challenges. Conventional strategies always exhibit the insufficiencies in overall coverage, analytical efficiency, and degree of automation, and the results highly rely on the personal knowledge and experience. The goal of this work was to establish a software-aided approach, by integrating ultra-high performance liquid chromatography/ion-mobility quadrupole time-of-flight mass spectrometry (UHPLC/IM-QTOF-MS) and in-house high-definition MS library, to enhance the identification of prototypes and metabolites of the compound formulae , taking Sishen formula (SSF) as a template.
View Article and Find Full Text PDFJ Chromatogr A
January 2025
Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City-807, Taiwan; Research Center for Precision Environmental Medicine, College of Medicine, Kaohsiung Medical University (KMU), Kaohsiung City-807, Taiwan; PhD Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University (KMU), Kaohsiung City-807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung Medical University, Kaohsiung, City-807, Taiwan; Department of Chemistry, National Sun Yat-sen University (NSYSU), Kaohsiung City, 804, Taiwan. Electronic address:
Patients with dihydropyrimidine dehydrogenase (DPD) deficiency in peripheral mononuclear cells are at higher risk of severe toxicity due to the improper dose of fluorouracil-based chemotherapy drugs, which has become an essential aspect for consideration in clinical studies. 5-fluorouracil (5-FU) is a first-line and second-line chemotherapy drug in adjuvant, neoadjuvant, or palliative therapy settings to treat solid tumors and cancers. In this work, a novel in-syringe-based fast drug extraction (IS-FaDEx) technique followed by UHPLC-MS/MS detection was developed for rapid biomonitoring of 5-FU and its biometabolites in human blood samples.
View Article and Find Full Text PDFJ Sep Sci
December 2024
State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, National Chinmedomics Research Center, National TCM Key Laboratory of Serum Pharmacochemistry, Metabolomics Laboratory, Department of Pharmaceutical Analysis, Heilongjiang University of Chinese Medicine, Harbin, China.
Shenhua Tablet (SHT), a Chinese herbal medicine comprising seven crude drugs, is utilized in the treatment of immunoglobulin A nephropathy (IgAN). However, due to its complex composition, the chemical constituents of SHT in vitro are still incompletely known, which has restricted the comprehensive development and utilization of SHT in clinical practice. In the present study based on ultra-high performance liquid chromatography-quadrupole-orbitrap-linear ion trap mass spectrometry (UHPLC-Q-Orbitrap-LTQ-MS) in data dependent acquisition mode, combining the accurate mass and structural information, the profiling and characterization of chemical constituents in SHT were carried out.
View Article and Find Full Text PDFPharmaceuticals (Basel)
October 2024
Pharmacy Department, University Clinical Hospital of Santiago de Compostela (SERGAS), 15706 Santiago de Compostela, Spain.
Risperidone, a second-generation antipsychotic widely used in the treatment of schizophrenia, requires therapeutic drug monitoring due to its high interindividual variability. UHPLC-MS/MS is considered the gold standard for pharmacokinetic studies owing to its superior sensitivity and specificity, although it involves time-consuming manual sample preparation. In contrast, the Alinity C system, fully automated, simplifies sample processing, but only measures the active moiety (risperidone plus paliperidone).
View Article and Find Full Text PDFPhytomedicine
December 2024
School of pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, PR China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Anhui University of Chinese Medicine, Hefei 230012, PR China; Resources Protection and Development Synergetic Innovation Center of Anhui Authentic Chinese Medicine Quality Improvement, Hefei 230012, PR China; Anhui Province Key Laboratory of Traditional Chinese Medicine Decoction Pieces of New Manufacturing Technology, Bozhou, PR China. Electronic address:
Background: Gastrodia elata (GE) has been widely used in clinical practice for many years with the functions of relieving stroke, suppressing liver Yang, dispelling wind and clearing collaterals. Our group's previous experimental studies have proved that GE has therapeutic effect on cerebral ischemia reperfusion injury (CIRI) (Ding et al., 2022).
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