April 2nd 2025
Susan J. Schniepp, distinguished fellow at Regulatory Compliance Associates, and Rona LeBlanc-Rivera, PhD, principal consultant, Regulatory Affairs at Regulatory Compliance Associates, answer some questions about FDA’s January 2025 21 CFR 211.110 guidance document.
The digital transformation of quality-by-design assessment workflows can improve efficiency, reduce human errors, and facilitate integration within a much broader digital ecosystem.
Process Validation: Using Tolerance Intervals for Setting Process Validation Acceptance Criteria
June 1st 2007One goal of process characterization is establishing representative performance parameter ranges that can be used to set validation acceptance criteria (VAC). Characterization studies yield varying numbers of data points from multiple experiments, and may also include data generated at different scales (e.g., bench, pilot, and commercial), which add complexity to the analysis. Many statistical approaches can be used to set ranges from large data sets. As an example, we present the statistical considerations and techniques for setting validation acceptance ranges for a chromatography step used in purifying a recombinant protein. Performance parameter data from a combined data set consisting of 67 bench, six pilot, and three full-scale runs were analyzed using the statistical analysis software JMP (SAS Institute). The combined data set was used to compute tolerance intervals, so that sources such as scale and column feed material could be properly modeled. The resulting ranges were used to establish..
FDA Issues Warning Letter to Neotropix for GLP Violations
April 22nd 2007Neotropix, Inc. (Malvern, PA, www.neotropix.com), a biotechnology company dedicated to the development and commercialization of virus-based therapeutics for the treatment of cancer and other diseases, received a warning letter (http://www.fda.gov/foi/warning_letters/b6308d.pdf) on March 23, 2007, citing deviations from good laboratory practices (GLP) regulations governing the proper conduct of nonclinical studies as published under 21 CFR Part 58.
Analytical Testing to Support Biopharmaceutical Products
April 2nd 2007A tremendous amount of analytical testing is required to support a biopharmaceutical product from discovery, development, and clinical trials, through manufacturing and marketing. Numerous methods are used to fully characterize large molecules because of their complexity-characterizing them is significantly more difficult than it is for small molecules. Biopharmaceuticals are produced via living systems, i.e., E. coli, yeast, or mammalian cells, which require additional testing matrices.
USP Seeks Participants for Glycan Analysis Study
March 22nd 2007The United States Pharmacopeia (USP, Rockville, MD, www.usp.org) and the UK's National Institute for Biological Standards and Control (NIBSC, Hertfordshire, UK, www.nibsc.ac.uk) are seeking participants in a study of analytical methods used by the industry to characterize and quantify oligosaccharides.
Regulatory Beat: Quality Standards to Reshape Manufacturing
February 1st 2007A series of ICH guidances are encouraging industry to adopt quality-based approaches for achieving the "desired state" of drug and biotech manufacturing: more efficient and flexible operations that can reliably produce high quality therapies with less regulatory oversight.
Final Word: Should You Need FDA Approval to Make Manufacturing Changes?
February 1st 2007The pharmaceutical industry is well aware that FDA is trying to take a risk-based approach to enforcing the current good manufacturing practices (cGMP) regulations. This approach is driven by an economic reality: FDA simply does not have the resources to inspect every facility every other year. The organization doesn't even have the resources to inspect facilities every three years. Likewise, it is not cost-effective for our companies to carry out a complete, documentation-oriented revalidation for every process change, regardless of its significance or risk.
The HSV-1 and HVP-2 titers were determined by the inoculation of test solutions into Vero cell cultures and calculated using the Reed M?ench method.