Publications by authors named "M Kunzelmann"

Article Synopsis
  • * It introduces the Life-Cycle-Design of Experiments (LDoE) methodology, which integrates various data and enhances model predictions by allowing for flexible design adjustments during the development process.
  • * The LDoE approach consolidates all experimental data into one cohesive model, enabling timely identification of critical process parameters, which can lead to more effective and efficient process development.
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Article Synopsis
  • The study presents a new type of infectivity assay that uses label-free bright-field imaging to track changes in cell shape due to virus infection.
  • This kinetic infectious virus titer (KIT) assay allows for quick analysis of viral titers, showing results within 24 hours and demonstrating high accuracy with low variability across samples.
  • The KIT assay is versatile enough to be applied to various viruses and could significantly improve the efficiency of virus testing in both pharmaceutical and academic settings.
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Article Synopsis
  • Robust potency assays are crucial for biotherapeutic analytics and Design of Experiment (DoE) approaches help analyze how different assay parameters affect these assays.
  • Current methods evaluate specific assay features in isolation, making it hard to understand their combined effects.
  • The proposed functional DoE approach models the relationships between assay features, optimizing assay design through a multivariate desirability, which enhances the understanding and reliability of biotherapeutic analytics.
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Intermediate acceptance criteria are the foundation for developing control strategies in process validation stage 1 in the pharmaceutical industry. At drug substance or product level such intermediate acceptance criteria for quality are available and referred to as specification limits. However, it often remains a challenge to define acceptance criteria for intermediate process steps.

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Maximizing the value of each available data point in bioprocess development is essential in order to reduce the time-to-market, lower the number of expensive wet-lab experiments, and maximize process understanding. Advanced in silico methods are increasingly being investigated to accomplish these goals. Within this contribution, we propose a novel integrated process model procedure to maximize the use of development data to optimize the Stage 1 process validation work flow.

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