Lonza Inc.

Thaddaeus Webster

Carrie Mason

Eytan Abraham

Colin Mark Jaques

Yonatan Levinson

Brian Hadley

Nicholas Uth

Pankaj Sinha

Ruth Christine Rowland-Jones

Seshu Tummala

Tristan Wilkins

The monitoring and control of bioprocesses is provided. The present disclosure provides the ability to generate generic calibration models, independent of cell line, using inline Raman probes to monitor changes in glucose, lactate, glutamate, ammonium, viable cell concentration (VCC), total cell concentration (TCC) and product concentration. Calibration models were developed from cell culture using two different CHOK1SV GS-KO™ cell lines producing different monoclonal antibodies (mAbs). Developed predictive models, qualified using an independent CHOK1SV GS-KO™ cell line not used in calibration, measured changes in glucose, lactate, ammonium, VCC, and TCC with minor prediction errors over the course of cell culture with minimal cell line dependence. The development of these generic models allows the application of spectroscopic PAT techniques in a clinical manufacturing environment, where processes are typically run once or twice in GMP manufacturing based on a common platform process.

Automated control of cell culture using Raman spectroscopy

The monitoring and control of bioprocesses is provided. More particularly, the present disclosure is directed to formulating buffer products from multiple buffer solutions for feeding the different operations occurring within a bioprocess line. As the buffer product is being formulated, the buffer product is tested for conductivity, refractive index, and optionally pH. The conductivity measurements are used in conjunction with refractive index measurements to ensure that the buffer product not only has the correct concentration of ions but also has the correct concentration of components. A controller can be used to make automatic adjustments to the buffer product should any of the measured parameters fall outside a preset range.

Buffer formulation method and system

The monitoring and control of bioprocesses is provided. The present disclosure provides the ability to generate generic calibration models, independent of cell line, using inline Raman probes to monitor changes in glucose, lactate, glutamate, ammonium, viable cell concentration (VCC), total cell concentration (TCC) and product concentration. Calibration models were developed from cell culture using two different CHOK1SV GS-KO&#x2122; cell lines producing different monoclonal antibodies (mAbs). Developed predictive models, qualified using an independent CHOK1SV GS-KO&#x2122; cell line not used in calibration, measured changes in glucose, lactate, ammonium, VCC, and TCC with minor prediction errors over the course of cell culture with minimal cell line dependence. The development of these generic models allows the application of spectroscopic PAT techniques in a clinical manufacturing environment, where processes are typically run once or twice in GMP manufacturing based on a common platform process.

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Rollinsford, NH, United States of America

Thaddaeus Webster