Earlier this year, the FDA issued its long-awaited process validation guidance document, which had been several years in development. It is well written and effectively articulates what many progressive companies have been thinking and doing for years. But many people in the industry are asking questions. Part 1 of this article described the history of process validation before the FDA’s quality by design (QbD) initiative and discussed QbD in general. It also described the new process validation…
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Addressing Image-Based Compliance and Validation Issues
Review times for 510(k) submissions have increased by >55% since 2005 because of poor-quality submissions by medical device manufacturers, according to a US FDA July 2011 report (1). Such setbacks can debilitate research and development (R&D) budgets of medical device and pharmaceutical companies and significantly affect their return on investment. As the FDA increases scrutiny of submissions, organizations must ensure adequate controls in assessing drug and device efficacy for preclinical animal studies and clinical trials. Doing so lends…
Analysis and Immunogenic Potential of Aggregates and Particles
The conclusion of this CMC Forum continued to focus on the latest developments in detection and characterization of protein aggregates (1). Afternoon sessions detailed the most recent experiments probing the role of protein aggregates in immunogenicity, with discussions on the best models to use and initial results. Topics included potential thresholds for immunogenicity, linking laboratory and clinical data, and predicting and testing potential immunogenicity of products throughout a development lifecycle. Afternoon Sessions Amy Rosenberg (Division…
Clinical Development of Biosimilars
Biosimilars require comparative studies that are different from the typical placebo-control clinical trials for first-generation proteins. A typical clinical trial programs must show equivalence of a biosimilar to the originator protein. Hans-Peter Guler, senior vice president of clinical development at INC Research, recently discussed with me the primary objectives and approaches to conducting an equivalence design. By contrast with trials for originator proteins, equivalence trials require a different statistical approach. The biosimilars company needs agreement from the…
From The Editor
In one company I worked for, we were all given a year to participate in a project called “Budget Busters.†Each person and department was tasked with figuring out ways to save operating costs on all levels. Monthly cash awards were given to those who had made significant contributions to the program. Our mailroom manager created notepads for us from scrap paper. We began reusing manila folders, and our editorial department began using both sides of manuscript-tracking…
How QbD and the FDA Process Validation Guidance Affect Product Development and Operations, Part 1
Earlier this year, the FDA issued its long-awaited process validation guidance document, which had been several years in development. It is well written and effectively articulates what many progressive companies have been thinking and doing for years. But many people in the industry are asking questions: How will it affect our process development programs? How will it affect the submissions and licensure of our products? And how will it aid in our commercial operations? Or will it have…
Analysis and Immunogenic Potential of Aggregates and Particles
The number of biotherapeutics on the market has rapidly increased during the past several years. Such proteins commonly exhibit a concentration-dependent propensity for self-association, which often leads to the formation of aggregates that range in size from nanometers (oligomers) to microns (subvisible and visible particles). Publications two years ago focused attention on the potential immunogenicity of active-ingredient aggregates ((1,2,3,4). The authors discussed lack of specificity of compendial measurements and inability of other current methods to address potential effects…
From The Editor
Not long ago I assembled a few current and former coworkers to meet with a young woman who is contemplating a career in journalism. Part of that visit involved comparing experiences of those who had been in the field for many years with those who had finished their formal education only a few years ago. We wondered whether the field still welcomes newcomers with degrees other than in journalism; or whether publishers now insist on that specific…
Monoclonal Antibody Manufacturing
Continuing the theme of this occasional series, we examine the role of manufacturing in the supply chain in terms of what is required to deliver affordable medicines to patients. The industry has debated the relevance of manufacturing costs in the overall big picture (1). Rising manufacturing costs as a proportion of the overall selling price coupled with increased competitive pressures creates a strong drive to reduce manufacturing costs. However, cost of goods (CoG) is not the only strategic…
Biosimilars in Development
The 2009 Biologics Price Competition and Innovation Act (BPCIA) provided the bioprocessing industry with the legislative pathway toward approval of biosimilars. US Food and Drug Administration information regarding how it will translate that legislation, however, had been limited until an August 2011 article finally provided some insight on how those guidances might actually play out (1). As expected, the agency appears to be implementing a science-driven approach, with sponsor companies needing to apply complementary orthogonal analytical methods to…