Authors


Nikolaos Grekas

Latest:

Organic Impurities in Chemical Drug Substances

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.


Joseph Kukura

Latest:

Experimental and computational methods for understanding pharmaceutical flows, Part II: Large-scale production equipment

Flow problems, such as process performance and reliability, can be improved using a combination of experimental and computational methods.


Roghieh Saffie-Siebert

Latest:

Nanotechnology Applications for Drug Delivery

Nanotechnology is believed to hold enormous promise for the future of medicine and healthcare...


Bas Beemsterboer

Latest:

The Hidden Economic of Calibration Management

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.


Matthew Brown

Latest:

The Need for Effective Document Change Management in the Pharmaceutical Industry

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.


Paulo E. Arratia

Latest:

Characterization of the Performance of Bin Blenders-Part 3 of 3: Cohesive Powders

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.


Gerad Bolhuis, PhD

Latest:

New Developments in Spray-Dried Lactose

Recent advances in spray-drying technology have led to the production of new directly compressible lactose grades with distinct advantages.


Anil M. Dwivedi, PhD

Latest:

Residual Solvent Analysis in Pharmaceuticals

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.


Dale L. Rieger

Latest:

Protecting Intellectual Property Prior to Commercialization

This article looks at the different approaches to patenting in Europe and the US...


James V. McArdle, PhD

Latest:

Investigation of Out-of-Specification Results

The authors summarize the results of the September 2000 PhRMA workshop discussions about conducting out-of-specification investigations.


Leigh Canham

Latest:

Nanotechnology Applications for Drug Delivery

Nanotechnology is believed to hold enormous promise for the future of medicine and healthcare...


Jon S. Kauffman, PhD

Latest:

Trends in Impurity Analysis: Determination of Extractables, Leachables, Residual Solvents, and Unknowns by Mass Spectrometry

Advances in mass spectrometry have made it a valuable tool for use in the quality-control laboratory.


Lyn Hughes, PhD

Latest:

Ion Exchange Resinates — The Technology Behind the Mystery

In this article, the author explains some of the technology behind using ion-exchange resins for drug delivery...


Ali Nokhodchi, PharmD, PhD

Latest:

The effect of storage conditions on the physical stability of tablets

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.


David Johnston

Latest:

The Decline of Six Sigma

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.


Heather B. Hayes

Latest:

Using Earned-Value Analysis to Better Manage Projects

EVA takes into account a project's schedule and budget to determine the true cost performance.


Mary Ann Gorko

Latest:

Understanding Internal Release Limits

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.


Uwe Trinks

Latest:

Implementing and Maintaining a Drug Safety System

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.


J Michael Newton

Latest:

The Preparation of Spherical Granules by Extrusion/Spheronization without Microcrystalline Cellulose

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%.


Amir Bashiri-Shahroodi

Latest:

Dropping Method Solution for Formulating Solid Dispersions

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.


Bob McIlvaine

Latest:

The Clean Room Technology Market in the European Pharmaceutical/Biotechnology Industry

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.


Eliana B. Souto

Latest:

Topical delivery of oily actives using solid lipid particles

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.


Frank Kofi Bedu-Addo, PhD

Latest:

Understanding Lyophilization Formulation Development

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.


Paul Kippax

Latest:

Particle size analysis

An expert on diffraction systems offers insight on particle size specifications and analysis.


Michael B. Higgins

Latest:

Optimizing Cross-Organizational Team Performance and Management

Treating a cross-organizational team as a full-fledged partnership helps complete a project on time and on budget.


Amita Nanda

Latest:

Cyclodextrins as Sustained-Release Carriers

Cyclodextrins can improve the physiochemical properties of various sustained-release formulations.


Christoph Johann

Latest:

Field-Flow Fractionation With Multiangle Light Scattering

Absolute macromolecular characterization is a separation technique that combines AF-FFF with MALS instruments...


Arul Joseph

Latest:

Protecting Intellectual Property Prior to Commercialization

This article looks at the different approaches to patenting in Europe and the US...


Carol L. Fisher

Latest:

Inside the Outsourcing Relationship: Real Life Lessons from Contract Manufacturing Services Partners

… 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.


Matthew Parks

Latest:

The Relationship between Saturated Hydrogen Peroxide, Water Vapour and Temperature

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.