Monday, August 18, 2008

Validation & Compliance: Using Risk Analysis in Process Validation

Process validation is used to confirm that the resulting product from a specified process consistently conforms to product requirements. A risk-based approach to process validation provides a rational framework for developing an appropriate scope for validation activities, focusing on processes that have the greatest potential risk to product quality. This article presents a case study in which a risk-based approach was used to evaluate a typical mammalian cell culture and purification process. This risk assessment used a Failure Modes and Effects Analysis (FMEA) to evaluate the impact of potential failures and the likelihood of their occurrence for each unit operation. Unit operations included in the process validation required a risk priority number greater than or equal to a specified threshold value. Unit operations that fell below the threshold were evaluated for secondary criteria such as regulatory expectations or historical commitments.

Author(s):
Leslie Sidor, Paul Lewus
Journal:
BioPharm International, Feb 1, 2007

Sunday, February 24, 2008

Calibration of Lyophilization Pressure Gauges

Gary Osborn and Steve Hansen
Pharmaceutical Technology JUNE 2002 ISO 9000 and FDA requirements mandate that any measurement be traceable to national standards. Calibration of equipment is necessary to ensure traceability, performance, and reliability.This article explains the proper method for the in situ, o­n-site, or off-site calibration of lyophilizer pressure gauges and offers some important guidelines to ensure the accuracy of a capacitance manometer.For full article Click Here

Development of an In Situ Spectroscopic Method for Cleaning Validation

Narinder K. Mehta, Javier Goenaga-Polo, Samuel P. Hernandez-Rivera, David Hernandez, Peter J. Melling, and Mary A. Thomson, Remspec Corporation
BioPharm International, May 2002 A fiber-optic, mid-IR spectroscopy probe combined with a grazing-angle reflectance sampling head can be used as a solvent-free in situ method for validating cleanliness with substantial improvement in accuracy.

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Implementing Total Organic Carbon Analysis for Cleaning Validation

Pharmaceutical Technology, May 1, 2004
Total organic carbon (TOC) analysis is a fast and effective analytical technique for cleaning validation. Understanding the various types of TOC technologies is essential for choosing the best solution.


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Pharmaceutical Cleaning Validation Method References

Alconox A cleaning validation involves testing for acceptable residues o­n pharmaceutical manufacturing or medical device surfaces. The validation involves residue identification, residue detection method selection, sampling method selection, setting residue acceptance criteria, methods validation and recovery studies, and finally writing a procedure and training operators. This procedure is used to document acceptable residues 3 or more times and then a rational monitoring program to maintain a validated state is put in place. If you are changing any part of your procedure or cleaner, first clean the new way, collect data and then clean the old way before using any equipment while you are in the process of validating the new procedure.


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