[NMR paper] Ranking mAb-excipient interactions in biologics formulations by NMR spectroscopy and computational approaches
Ranking mAb-excipient interactions in biologics formulations by NMR spectroscopy and computational approaches
Excipients are added to biopharmaceutical formulations to enhance protein stability and enable the development of robust formulations with acceptable physicochemical properties, but the mechanism by which they confer stability is not fully understood. Here, we aimed to elucidate the mechanism through direct experimental evidence of the binding affinity of an excipient to a monoclonal antibody (mAb), using saturation transfer difference (STD) nuclear magnetic resonance (NMR)...
[NMR paper] Comprehensive Assessment of Protein and Excipient Stability in Biopharmaceutical Formulations Using (1)H NMR Spectroscopy
Comprehensive Assessment of Protein and Excipient Stability in Biopharmaceutical Formulations Using (1)H NMR Spectroscopy
Biopharmaceutical proteins are important drug therapies in the treatment of a range of diseases. Proteins, such as antibodies (Abs) and peptides, are prone to chemical and physical degradation, particularly at the high concentrations currently sought for subcutaneous injections, and so formulation conditions, including buffers and excipients, must be optimized to minimize such instabilities. Therefore, both the protein and small molecule content of biopharmaceutical...
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03-04-2021 12:41 PM
Selective suppression of excipient signals in 2D 1 Hâ?? 13 C methyl spectra of biopharmaceutical products
Selective suppression of excipient signals in 2D 1 Hâ?? 13 C methyl spectra of biopharmaceutical products
Abstract
While the use of 1Hâ??13C methyl correlated NMR spectroscopy at natural isotopic abundance has been demonstrated as feasible on protein therapeutics as large as monoclonal antibodies, spectral interference from aliphatic excipients remains a significant obstacle to its widespread application. These signals can cause large baseline artifacts, obscure protein resonances, and cause dynamic range suppression of weak peaks in non-uniform...
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01-07-2019 05:49 AM
[NMR paper] Protein-excipient interactions evaluated via NMR studies in polysorbate based multi-dose protein formulations: influence on antimicrobial efficacy and potential study approach.
Protein-excipient interactions evaluated via NMR studies in polysorbate based multi-dose protein formulations: influence on antimicrobial efficacy and potential study approach.
Related Articles Protein-excipient interactions evaluated via NMR studies in polysorbate based multi-dose protein formulations: influence on antimicrobial efficacy and potential study approach.
J Pharm Sci. 2018 Jun 05;:
Authors: Torosantucci R, Furtmann B, Elshorst B, Pfeiffer-Marek S, Hartleb T, Andres N, Bussemer T
Abstract
Preservatives are excipients...
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06-10-2018 03:09 AM
Protein-excipient interactions evaluated via NMR studies in polysorbate based multi-dose protein formulations: influence on antimicrobial efficacy and potential study approach
Protein-excipient interactions evaluated via NMR studies in polysorbate based multi-dose protein formulations: influence on antimicrobial efficacy and potential study approach
Publication date: Available online 5 June 2018
Source:Journal of Pharmaceutical Sciences</br>
Author(s): Riccardo Torosantucci, Britta Furtmann, Bettina Elshorst, Stefania Pfeiffer-Marek, Tanja Hartleb, Nikolaus Andres, Till Bussemer</br>
Preservatives are excipients essentially needed in pharmaceutical multi-dose formulations to prevent microbial growth. Among available...
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06-06-2018 01:40 AM
[NMR paper] Rapid assessment of protein structural stability and fold validation via NMR.
Rapid assessment of protein structural stability and fold validation via NMR.
Related Articles Rapid assessment of protein structural stability and fold validation via NMR.
Methods Enzymol. 2005;394:142-75
Authors: Hoffmann B, Eichmüller C, Steinhauser O, Konrat R
In structural proteomics, it is necessary to efficiently screen in a high-throughput manner for the presence of stable structures in proteins that can be subjected to subsequent structure determination by X-ray or NMR spectroscopy. Here we illustrate that the (1)H chemical...