Chemical purity is the most important quality characteristic of a pharmaceutical substance. This article describes the latest scientific and technological advances to meet recent pharmacopoeial and regulatory requirements regarding the control of organic impurities in synthetically produced active substances. Future developments and suggestions for those working in quality control and raw material selection are discussed.
Flow problems, such as process performance and reliability, can be improved using a combination of experimental and computational methods.
Nanotechnology is believed to hold enormous promise for the future of medicine and healthcare...
The importance of calibrating instruments used in manufacturing processes is well known, particularly for highly regulated industries such as pharmaceutical production. This article discusses software applications used to support calibration management, and the potential economic gain to be had by replacing a standalone software application with a capable enterprise system.
With the advent of regulations such as 21 CFR Part 11 and the introduction of the electronic common technical document, it is becoming increasingly important to be able to enhance and fully utilize data management systems. Document change management is a vital tool in the construction and organization of valuable information, and can play a key role in the all-important process of getting a product to market.
In this final part of a series of three articles, the results from experiments involving cohesive materials are discussed in terms of mixing performance, agglomerate comminution, and lubrication of powder mixtures.
Recent advances in spray-drying technology have led to the production of new directly compressible lactose grades with distinct advantages.
Residual solvents in pharmaceuticals are organic, volatile chemicals that are either used or produced during the manufacture of actives, excipients or drug products. These chemicals may be hazardous to human health; however, their acceptance limits and classification vary among the three major pharmacopoeia. In this article, the author discusses the regulatory status of the various classifications of residual solvents with regard to the European, US and Japanese pharmacopoeia.
This article looks at the different approaches to patenting in Europe and the US...
The authors summarize the results of the September 2000 PhRMA workshop discussions about conducting out-of-specification investigations.
Nanotechnology is believed to hold enormous promise for the future of medicine and healthcare...
Advances in mass spectrometry have made it a valuable tool for use in the quality-control laboratory.
In this article, the author explains some of the technology behind using ion-exchange resins for drug delivery...
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 Six Sigma approach would appear to be ideally suited to pharmaceutical processes, yet the industry has been very slow to adopt it. This article looks at the possible reasons for this, and suggests an alternative methodology that takes advantage of Six Sigma tools and techniques, backed by good statistical principles.
EVA takes into account a project's schedule and budget to determine the true cost performance.
Internal release limits help ensure that a batch of drug product remains within specifications throughout its shelf life. This article explores what internal release limits are and why they are important.
The collection, investigation and monitoring of suspected adverse drug reactions (SADRs), and associated product use and complaint information, is a regulatory requirement for all manufacturers of pharmaceuticals for human use.1 This process, called pharmacovigilance or drug safety, appears to be fairly standardized between different pharmaceutical companies and usually contains the elements outlined in Figure 1.
The process of extrusion/spheronization used to produce spherical granules frequently relies on formulations containing microcrystalline cellulose (MCC). This excipient can hold water, even when pressure is applied, and form "pastes" that have suitable rheological properties, which allow both extrusion and subsequent spheronization to produce uniform spherical granules. This article describes a new approach to providing paste systems with appropriate characteristics. This can be achieved by incorporating glyceryl monostearate (GMS) into the formulation. It was found that the inclusion of GMS in formulations provides a useful alternative to MCC as an effective excipient to aid the preparation of spherical granules, allowing the incorporation of drug loads as high as 90%.
The use of solid dispersion technology to increase the bioavailability of poorly water-soluble drugs has always been limited by processing and scale-up difficulties. A new approach may help to overcome some of the problems.
In the pharmaceutical and biotechnology sectors, the clean room business is flourishing. Accounting for approximately 25% of the world's clean room expenditure, Europe's drug manufacturing industry is using these facilities to produce an increasing amount of biologics and biopharmaceuticals, and meet the strict legislative requirements for aseptic processing. This article reviews the current and future state of the market for clean rooms in Europe and comments on their applications.
Lipid-based drug delivery systems - such as liposomes, micro-and nanoemulsions, self-emulsified drug delivery systems, and solid lipid micro-and nanoparticles - are becoming more popular because lipid materials are easily characterized, contain a high range of well-defined/tolerated surfactant molecules and can be developed for several administration routes.
The author covers the fundamentals of lyophilization and provides case studies about the development of lyophilized biopharmaceutical products and the importance of biophysical characterization in formulaiton and the lyophilization process.
An expert on diffraction systems offers insight on particle size specifications and analysis.
Treating a cross-organizational team as a full-fledged partnership helps complete a project on time and on budget.
Cyclodextrins can improve the physiochemical properties of various sustained-release formulations.
Absolute macromolecular characterization is a separation technique that combines AF-FFF with MALS instruments...
This article looks at the different approaches to patenting in Europe and the US...
… the real glue that holds the partnership - and project - together, even more so than a formal contract or quality agreement, is the ability to communicate regularly and honestly with each other.
Hydrogen peroxide has become the compound of choice for gaseous biodecontamination in the pharmaceutical industry. As some processes operate at vapour concentrations below the dew point, to avoid condensation, and others actually form dew, it is important to understand the relationship between the vapours and to have a method of establishing the dew point.