Manufacturing

Monitoring ATP Status in the Metabolism of Production Cell Lines

Because the development of industrial cell culture processes for production of recombinant proteins seeks high efficiency, reproducibility and predictability, it is important to have access accurate analytical tools. Although established analytical methods deliver useful data, they are incomplete because they only partially address the cellular metabolic state and also because no predictions can be made.

This paper discusses the process used to establish and evaluate an assay for rapid and reliable online measurement of intracellular ATP (adenoside-5′-triphosphate) to monitor the physiological state of cells in combination with other parameters (cell number, viability, and glucose consumption).

Considering Cell Culture Automation in Upstream Bioprocess Development

With the increasing importance of biologics in today’s pharmaceutical market, throughput and efficiency are crucial in developing a production cell line. Cell culture automation can be a good solution for high-throughput and labor-intensive areas of a development process. Because of the cost of the investment, there are many factors to be considered before committing to a purchase.

In this paper, Tim Gryseels, a senior scientist at Pfizer, discusses the important steps in identifying and purchasing cell culture automation, and how the automation process can reduce costs and increase throughput, efficiency and consistency.

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…

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…

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.…

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…

Biopharmaceutical Quality Assurance

The basic concepts and reasons for quality assurance (QA) in biotechnology are, of course, the same as for the manufacture of any other medicinal product or device: to assure the safety of the patient. So, what’s different about biotechnology? The variety of products is vast — from well characterized proteins in production for the past couple of decades, to cell based products, genetically modified oncolytic viruses, viral gene vectors — and many more, with new innovations almost daily. Although their…

Partnering with a CMO in China

Many biopharmaceutical companies are evaluating the option of working with contract manufacturing organizations (CMOs) in China. There are probably as many reasons for following that strategy as there are companies doing the evaluating. However, regardless of the strategic plan behind pursuit of a CMO in China, there are key issues each company must consider as part of its due diligence before selecting one. Through a fast growing economy and government supported transition from low-margin to high-margin products, China is quickly…