Metabolite identification plays a key role in drug discovery, preclinical development, and clinical development. CD Formulation's scientists conduct metabolite identification studies to identify and confirm metabolic sites and corresponding structural parts. This information greatly improves the validity of metabolic stability assays and facilitates the selection of the next series of compounds.
Nucleic acid drug metabolism research is the material basis for elucidating drug safety and efficacy, and it is also the core and difficulty of drug metabolism research, which is often challenged by missing metabolites and false positives. A comprehensive understanding of drug metabolism pathways requires a large investment of resources, including technical staff, analytical equipment and time. During drug development, metabolic stability assays can provide insights into the metabolic process, kinetic properties, and pharmacological activity and toxicity of metabolites in vivo, which can provide a key basis for subsequent dosage design, optimization of dosing regimens, interpretation of species differences, and screening and optimization of new drug candidates, thus ensuring the safety and efficacy of the drug, and ultimately contributing to the successful development of novel nucleic acid drugs.
Fig.1 Metabolism attributes studied in early drug discovery. (Prasad B, et al., 2011)
CD Formulation offers comprehensive metabolite analysis and structure characterization services for the analysis, isolation and characterization of metabolites in biological matrices to support drug discovery and safety studies. Our team of scientists can custom design experiments to address challenging metabolic research questions and work with research centers and departments across the company to resolve issues in a timely and efficient manner. We ensure timely delivery of reports that meet the requirements of relevant regulatory authorities. Our flexible and customized metabolite analysis and characterization solutions are designed to meet the needs of our clients.
Our services include the following.
Our technology platform enables bioscientists to characterize metabolites in drug discovery and drug development settings.
Technology Platforms | Descriptions |
---|---|
Radioisotope Tracer Technology | Radioisotope tracer technology can effectively track the metabolic distribution and clearance of drugs in animals. Human AME experiments with radioisotope tracing can provide a clearer and more intuitive picture of metabolite distribution in plasma, which can be used to determine the exposure of drugs and their metabolites in the circulation and to analyze the metabolic and clearance pathways of drugs. |
Mass Spectrometry Technology | Mass spectrometry is usually used in conjunction with chromatographic separation techniques. The basic principle is to utilize the separation function of chromatographic techniques to separate different metabolites and then identify them by mass spectrometry. By comparing and matching the mass-to-charge ratio data of the mass spectrometry graph with the data in the theoretical database, the relative molecular mass of the metabolite can be determined, thus realizing the qualitative identification of the metabolite. |
Nuclear Magnetic Resonance (NMR) Technology | NMR is a method that characterizes the chemical structure of a metabolite based on the spectra produced by changes in energy absorption in the nuclei of the metabolite's atoms due to changes in the external magnetic field, which can be used to determine the metabolite's species. |
Technology: LC-MS technology for quantitative analysis and metabolite identification of oligonucleotides
Journal: Journal of pharmaceutical and biomedical analysis
IF: 3.1
Published: 2007
Results:
This review summarizes the applications of liquid chromatography-mass spectrometry (LC-MS) or tandem mass spectrometry (LC-MS or LC-MS/MS) described in the literature over the past 10 years for quantitative characterization of therapeutic OGNs and their metabolic profiles in vitro and in vivo. There are several excellent review papers that provide a comprehensive overview of the application of LC-MS or LC-MS/MS for molecular mass measurements, sequence determination, DNA adduct identification, mutation detection, and characterization of covalent and/or non-covalent DNA/RNA complexes. Quantitative bioanalysis and metabolite identification of therapeutic OGN using LC-MS or LC-MS/MS has not been covered. This review covers technical issues, current methods and applications of LC-MS or LC-MS/MS in the quantitative analysis of OGNs in biological matrices and their in vitro and in vivo metabolic characterization. Finally, some conclusions are drawn and the future of LC-MS for quantitative analysis and characterization of the metabolism of therapeutic OGNs is discussed.
Fig. 2 Identification of the metabolites of G3139. (Lin Z J. et al., 2007)
CD Formulation provides reliable, rapid and cost-effective metabolite identification service for nucleic acid drugs, which can realize qualitative and quantitative identification of a variety of metabolites. All you need to do is inform us of your experimental objectives and send us your samples. We will handle all subsequent aspects of the project, including sample collection, metabolite extraction, and bioinformatics analysis. If you are interested in our services, feel free to contact us.
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