Special Reports

Monoclonal Antibody Aggregate Polish and Viral Clearance Using Hydrophobic-Interaction Chromatography

Hydrophobic Interaction chromatography (HIC) is a powerful polishing tool for the downstream purification and manufacture of biotherapeutics. HIC offers orthogonal selectivity for the clearance of difficult process and product-related impurities such as aggregates, host cell proteins and endogenous and adventitious viruses.  In this study, a family of POROS HIC resins with novel ethyl and benzyl chemistries was used to successfully polish two clinical stage monoclonal antibodies harboring very high levels of product aggregation (>10%). In addition to aggregate removal, viral…

Risk and Lifecycle Management for Biopharma Operations

By working with the best biopharmaceutical companies for over a decade, 4Tune Engineering (4TE) has built a portfolio of services that enables companies to address current-century challenges. The biotechnology industry needs to address advanced therapies and personalized medicines and deliver explicit patient outcomes. Biologics today fall into four categories: monoclonal antibodies (MAbs), biosimilars, advanced therapeutic medicinal products (ATMPs), and cell and gene therapies (CGTs). Consequently, we can ask whether our manufacturing science and technology (MSAT) approaches are up to the…

The Road to Commercialization: A Commercial CDMO’s Perspective

Richard Richieri, chief operation officer (COO) of Avid Bioservices, recently presented an Avid case study and strategy to design, prepare, and execute process validation in preparation for successful product approval inspections. The goals of the presentation were to share lessons about some of the strengths learned from Avid’s experience and to offer advice on industry best practices. Finding a CMO that meets your quality expectations and scale is a key driver for your eventual commercial success. Particularly, working with CMO…

Matrix: The Highly Automated Multibioreactor Solution That Fits to Your Bench Space, Bioprocessing Needs, and Budget

To improve their bioprocess performance, life-science specialists need flexibility in their R&D laboratories because of constantly changing bioprocessing demands. In addition, more experiments need to be performed with more accuracy and reproducibility on less bench space than ever before — and with limited budgets. Therefore, having flexibility in the number of bioreactors that fit available bench space and budget is crucial — along with the flexibility to connect and integrate the right software, sampling tools, and analytical devices. Running multiple…

Bioprocess Intensification – Fast, Flexible, and Efficient Solutions

Propelled by single-use systems (SUSs), biopharmaceutical companies are approaching the ideal of continuous bioprocessing. In addition to improving process integrity and decreasing production costs, SUSs have enabled exciting ways to configure, operate, and evaluate manufacturing steps. Sensitive process analytical technologies (PATs) and discriminating data analysis platforms are supplementing those developments, helping process engineers and operators to study and modify workflows in unprecedented ways. The goal now is to intensify: to apply increasingly nuanced process knowledge and growing technological capability in…

Single-Use Technologies: Accelerating Bioprocess Design with Key Insights from the Experts

Companies turn more and more to single-use technologies (SUTs) to mitigate production challenges — and with good reason. SUTs clearly decrease conventional costs while increasing process integrity. Yet as the writers in this compilation suggest, SUTs are now making possible new, exciting ways to configure, operate, and evaluate biomanufacturing. In this compilation, BioProcess International gathers key insights from biopharmaceutical industry experts at Sartorius Stedim Biotech to explore how SUTs can realize high-quality yet cost-effective end-to-end bioprocessing. The studies herein identify…

Streamlining the Path to Clinical Manufacturing

Careful consideration of lot size is crucial for multiyear success of a cell therapy business. RoosterBio’s product design and acceleration business works with the company’s customers to help make plans that are appropriate for their stages of product and clinical development. We use the following major considerations in creating a sound multiyear strategy with intermediate milestones: Understand what the future looks like and work backward Use reasonable to conservative assumptions to estimate a range of needs Invest in the right…

Rapid Mammalian Cell Harvest Without Centrifugation for Antibody Purification: Using a Novel System for Cell Culture Media Clarification

Monoclonal antibody (MAb) expression systems typically use signal peptides to ensure secretion of antibodies into cell culture media. Although that reduces the complexity of purification and prevents the need for cell disruption, it does require using expensive and time-consuming techniques to separate cells from antibody-containing cell culture fluids. In this study, we describe our tests of the novel Sartoclear Dynamics Lab V system (Sartorius S Lab Instruments GmbH and Co. KG) for rapid clarification of cell culture media without requiring…

Special Report: Current Analytical Approaches to Biophysical Characterization in a Regulatory Environment

Structural integrity of protein-based therapeutics is one of the major challenges in the biopharmaceutical industry. Multiple factors such as product stability, efficacy, and shelf life could be affected following minor changes in manufacturing process. Multiple biophysical methods employing spectroscopic and calorimetric tools can be used to analyse Higher Order Structure (HOS). Moreover, with an increasing demand for generating as much structural information as possible for regulatory submissions, a requirement for these analyses in a GMP environment is also important. This…

Cell Culture Bioprocessing in Perfusion: Assessing Cell Retention Technologies

Upstream bioprocessing in perfusion mode holds great promise for industrial production of cells and biologics. In perfusion, fresh medium is added constantly to the bioreactor, and used medium is harvested while the cells are retained in the bioreactor. As a result, the composition of the cell culture medium stays quite constant during the process. This offers several advantages. In perfusion, higher cell densities can be reached than in batch and fed-batch processes, therefore enhancing volumetric productivity. Because medium composition can…