Dosage Forms

Water interacts with pharmaceutical solids at virtually all stages of manufacture, from synthesis of raw materials to the storage of the final dosage form. The interactions of water with powders is, therefore, a major factor in the formulation, processing and product performance of solid pharmaceutical dosage forms.

The concept of quality should not only apply to the manufacture of the media - it should also continue throughout the product's lifetime of usage.

There are currently several hundred biotech-based drugs in clinical trials, representing around a quarter of all drugs in development - a proportion that looks set to increase.

Biotechnology stocks dropped 14% in 2006, giving up more than half of the value they'd picked up during a "stellar" 2005, according to G. Steven Burrill, CEO of Burrill & Company (www.burrillandco.com), the venture and merhant banking company. "Overall, it wasn't a great year for biotech," said Burrill in a year-end analysis, indicating that the biotechnology industry will finish the year with its collective market capitalization essentially unchanged, at approximately $490 billion. As for the future, biotechnology will continue to fuel a the transformation in healthcare, a tansformation emphasizing earlier disease detection, more targeted treatments, and adjunctive support through enhanced nutrition. We will see further progress on the personalized, predictive, preventative front...with new products targeting the "individualization" of medicine in the marketplace. Other predictions for 2007 include...

Washington, DC (Dec. 13)-After considerable debate and negotiation, Congress this week passed four bills poised to affect pharmaceutical and biotechnology research, development, and manufacture. All are currently awaiting signature by the President.

Basel, Switzerland (Dec. 5)-Lonza Group Ltd. and Singapore?s Bio*One Capital have formed a joint venture, Lonza Biologics Tuas, to build a large-scale mammalian cell-culture facility in Singapore for as much as $350 million.

Brussels, Belgium (Dec. 5)-The debate over biosimilars in Europe was heightened last week between the European Generics Association and the International Alliance of Patients Organizations, a patient advocacy group that issued a briefing paper on biosimilars to the European Parliament, the legislative arm of the European Union (EU).

This article describes the design and development of a material-sparing fluidization segregation tester for use with pharmaceutical powders. This tester offers several improvements over the current ASTM standardized test practice. Less than 20 mL of material is required to characterize the fluidization segregation potential of a sample. Features of the tester include powder containment for potent compounds, in-process monitoring of the fluidization conditions, and sample retrieval without the need for subsampling or riffling for typical analyses.

Brand-name manufacturers seek to protect their products.

Makers of injectable drugs can increase their market share and stay competitive by devising a product life-cycle management strategy.

Virus safety of biotech- and plasma-derived therapeutics is ensured through complementary manufacturing and quality control measures that include the control and monitoring of raw materials, the validation and implementation of effective virus clearance technology and the monitoring of final filled product for the presence of virus. Virus filtration, which is considered a robust and effective virus clearance technology, is a common unit operation in the manufacture of biologicals. In this article, we review the points that must be considered when selecting a virus-retentive filter. The areas covered include regulatory considerations; selecting, optimizing and validating a virus filtration step; and process scale implementation - areas that are critical to users of virus filters.

Why do the biotech ventures mange to have such promising drug candidates while pharmaceutical R&D is facing a drug deficit?

The needle and syringe have long been the standard delivery technology for vaccines. However, a confluence of market factors is driving new interest in alternative delivery systems that hold the potential to meet one or more of the following goals: improved antigen utilization, higher quality immune response, better stability and improved patient acceptance. Of particular interest are microneedle systems, otherwise referred to as microstuctured transdermal systems (MTS), that provide for targeted delivery of the vaccine formulation directly to antigen-presenting cells within the epidermis. This article provides a brief overview of MTS technology with an emphasis on solid-coated MTS for vaccine delivery.

Washington, DC (Nov. 20)-The US Department of Health and Human Services awarded contracts totaling $199.45 million to Sanofi Pasteur, Novartis, and GlaxoSmithKline PLC to manufacture 5.3 million 90-?g doses of influenza vaccine designed to protect against the H5N1 influenza virus strain.

Alcan, China Biopharma, US FDA, MedImmune, more

Research Triangle Park, NC (Nov. 13)-Eisai Inc. broke ground here for a new pharmaceutical production and formulation research and development facility for parenteral oncology drugs.

Geneva, Switzerland (Oct. 23)-Aiming to increase capacity for producing influenza pandemic vaccines, the World Health Organization has identified strategies and practical solutions for reducing the anticipated gap in the global vaccine supply.

AAPS, San Antonio (Oct. 31)-As biologic-based drugs become an increasingly larger part of pharmaceutical product portfolios, strategies for optimizing their formulation become increasingly important.

AAPS, San Antonio (Oct. 30)-Aiming to provide a greater understanding of coating processes, speakers at the 20th Annual Meeting of the American Association of Pharmaceutical Scientists presented some of the difficulties, tools, and strategies for obtaining adequately uniform films in pan and fluid-bed coating processes.

San Antonio, TX (Nov. 1)-Though the US Food and Drug Administration's final guidance on process analytical technology (PAT) was published in Sept. 2004, companies are still unsure about how exactly to implement PAT in their processes.

Understanding the impact of reactive mass transfer and local flow in multiphase systems is crucial for maximizing reaction selectivity and minimizing the formation of byproducts. The authors study the influence of mixing on fast liquid–liquid reactions. The iodination of L-tyrosine was used to demonstrate the relationship of droplet size and shape on reaction selectivity and to verify computational predictions. By understanding that droplet dynamics affect the yield and selectivity of fast reactions, the formation of byproducts can be minimized by optimizing operating parameters.

Clean rooms are critical areas in bio/pharma facilities, and it is essential that users are responsible for their care and upkeep, and familiarize themselves with the relevant regulations.

Quality by design and PAT approaches are increasingly being used for the biotech manufacturing of medicines. Complex manufacturing processes can not only be controlled using PAT principles, but optimized with respect to both product quality and economic value. This column describes how the fermentation process is often the first to benefit from this type of implementation.

The ¤9.5 billion therapeutic antibody market comprises over a dozen antibodies that have been generated using recombinant genetic methods developed over the last 20 years.

Robin Hwang, a senior principal scientist at Amgen (Thousand Oaks, CA), led the team that developed the first commercial disposable auto-injector for a biopharmaceutical: a prefilled three-step "SureClick" for delivering Enbrel (etanercept), a treatment for autoimmune diseases.

The US Food and Drug Administration issued a guidance document to provide manufacturers of biological products (other than blood and blood components) with its current thinking on reporting requirements on deviations from current good manufacturing practices for biological products.

New York (Oct. 9)-Pfizer has positioned itself to enter the DNA-based vaccine market with its agreement to acquire UK-based PowderMed Ltd., which holds a pipeline of DNA-based influenza vaccines currently in clinical development for treating both seasonal and avian flu.

Rockville, MD (Sept. 28)-The US Food and Drug Administration has released the draft guidance for industry ?Characterization and Qualification of Cell Substrates and Other Biological Starting Materials Used in the Production of Viral Vaccines for the Prevention and Treatment of Infectious Diseases.?

Biologics are forecast to account for roughly 60% of revenue growth through 2010 for Big Pharma as growth in small molecules slows. The author analyzes the factors driving demand and how the technology life cycles of these two sectors will affect market potential.

Pharmaceutical companies are facing increased competition, cost pressures, and a need to improve the performance of their manufacturing operations. Lean manufacturing offers methods, tools, and heuristics for improved efficiency in manufacturing. Process analytical technology offers alternative analysis techniques that could greatly improve manufacturing quality and efficiency. Mathematical tools exist for assessing the efficiency of manufacturing processes. Internal benchmarking is recommended for determining the efficiency and tracking improvements in pharmaceutical manufacturing.