Manufacturing

Technologies and Training Move Sterility to New Levels

Take six people and sample the microbial ecosystem on their forearms, and you will find more than 240 distinct microbes (1, 2). So it becomes readily apparent why keeping a cleanroom “clean” is a difficult task. One problem is that we humans are limited in our visual capacities and can see objects down to only 50 µm (3). If we could see contaminating particles, we would likely be very quick to clean them away. In fact, cleaning and cleaning validation…

Introducing Disposable Systems into Biomanufacturing

Single-use (disposable) systems are being considered and introduced into many biopharmaceutical processes because manufacturers have identified significant benefits they offer over traditional reusable systems. These benefits are often more evident when a new process and product are being developed. Lower capital expenditures, shorter development times for new facilities, and reduced validation costs are some of the reasons single-use technology may be selected. Here, a contract manufacturer’s case study is described in which an existing stainless steel system was completely replaced…

Leveraging the Size and Scope of Global CROs

Biotech was “born” in the 1970s. Since that time innovation by biotech pioneers has brought more than 200 medicines and vaccines to fruition for difficult-to-treat indications including oncology, HIV/AIDs, diabetes, and immune disorders. Another 400 biotech products targeting 200 diseases are currently in clinical trials, and 700 compounds are in preclinical development (1). Overall, the industry had a banner year in 2007, with an 8% increase in biotech revenues and a total of more than $29.9 billion (US) in investment…

Comparing Mammalian Expression Systems

Almost every pharmaceutical and biopharmaceutical company in the world depends on the use of recombinant stable cell lines to enable drug discovery, development, and often manufacturing of biologics. It normally falls on multidisciplinary upstream development teams to attain this goal, requiring a wide variety of technologies and skill sets such as laboratory robotics, optical analyzers, molecular biology, and data processing. The large capital investment required to procure the equipment and expertise necessary to develop biologics can be cost prohibitive, which…

CMOs Can Add Value to Outsourced Projects

Organizations outsource tasks to contract service providers for diverse reasons ranging from internal resource constraints (particularly in virtual or start-up companies) to overflow capacity, or to avoid or delay capital or resource investment. The scope of outsourced work varies from limited tasks such as an outsourced assay to complete process development and GMP manufacturing. In a highly competitive outsourcing market, customers expect successful and timely execution of the outsourced work, but they also seek “added value” to the overall program.…

Want a Good Partnership?

One evening, during dinner with several colleagues, the topic of company collaborations and contract organizations came up. I related my own experiences as party to a failed effort and the lessons I’d learned. As our conversation continued, our late night conclusions were simple: Effective partnerships are the means by which we achieve market success, but building such partnerships is complicated. One mistake after another can quickly cascade into a company’s collapse. Here I review six ways to ruin your company…

TFF Membranes for High MAb Concentration

In a typical monoclonal antibody (MAb) purification process, immediately after cell culture and supernatant clarification (its objective being to remove whole cells, cell debris, and particulates), the protein product is typically bound to an affinity chromatography resin and then recovered by elution using a buffer solution. Once recovered, the resulting protein solution is further purified through additional chromatography and virus clearance steps before being concentrated until a final solution is ready for filling and finishing operations. PRODUCT FOCUS: MONOCLONAL ANTIBODIESPROCESS…

Optimizing Vaccine Supply Chains Through Quality Management in Manufacturing

The recent product recalls of PedvaxHib and Comvax vaccine batches are a reminder that the control of vaccine manufacturing processes is of the highest importance. This rings especially true because the target population for these two products is children under the age of five. The Hib vaccine guards against meningitis and other serious infections caused by the bacterium Haemophilus influenzae. In this particular recall, type b vaccine was tested and determined to be free of contaminating microorganisms before being released…

Modeling Flow Distribution in Large-Scale Chromatographic Columns with Computational Fluid Dynamics

Column chromatography remains a key unit operation in downstream processing of biopharmaceuticals. For most commercial processes, two to three chromatography steps are used to remove process-and product-related proteins, DNA and adventitious agents. As the biopharmaceutical industry has increased its product offerings and related demands, downstream processes have fast become a bottleneck (1, 2). Many commercial and clinical processes include a number of cycles on one or more chromatography steps to process the harvest from a single production batch. PRODUCT FOCUS:…

The Next Generation of Biologicals and Their Production Systems

Combined advances in molecular biology, cell biology, and genomics have led to a wealth of new information about cellular processes. A growing understanding of the fundamentals of cell biology is now being translated into products that use an approach to exert a biological effect that is different from that of most biologicals currently on the market. To date, most biological products consist of highly purified proteins with a specific activity that alleviates or stops the symptoms of a certain condition.…