Multivariate Data Analysis Methodology to Solve Data Challenges Related to Scale Up Model Validation and Missing Data on a Mirco Bioreactor System
Multivariate data analysis (MVDA) is a highly valuable and significantly underutilized resource in biomanufacturing. It offers the opportunity to enhance understanding and leverage useful information from complex high dimensional data sets, recorded throughout all stages of therapeutic drug manufacture. To help standardize the application and promote this resource within the biopharmaceutical industry, this paper outlines a novel MVDA methodology describing the necessary steps for efficient and effective data analysis. The MVDA methodology is followed to solve two case studies: a "small data" and a "big data" challenge. In the "small data" example, a large scale data set is compared to data from a scale down model. This methodology enables a new quantitative metric for equivalence to be established by combining a two one sided test with principal component analysis. In the "big data" example, this methodology enables accurate predictions of critical missing data essential to a cloning study performed in the ambr15 system. These predictions are generated by exploiting the underlying relationship between the off line missing values and the on line measurements through the generation of a partial least squares model. In summary, the proposed MVDA methodology highlights the importance of data pre processing, restructuring, and visualization during data analytics to solve complex biopharmaceutical challenges.