Anurag S. Rathore
Anurag S. Rathore is a professor in the Department of Chemical Engineering at the Indian Institute of Technology Delhi and a member of BioPharm International's Editorial Advisory Board, Tel. +91.9650770650, asrathore@biotechcmz.com.
Articles
Optimization, scale-up, and validation ISSUES in FILTRATION of Biopharmaceuticals, Part II
September 1st 2004Filtration is one of the most commonly used unit operations in the manufacturing of biopharmaceuticals. This is the second part of the fourth article in the "Elements of Biopharmaceutical Production" series. In this second segment, Manoj Menon and Frank Riske present an approach for the development and optimization of a TFF application, followed by a contribution from Jennifer Campbell and Elizabeth Goodrich reviewing key issues involved in validation of a TFF step.
Optimization, scale-up, and validation issues in Filtration of Biopharmaceuticals, Part 1
August 1st 2004Filtration is one of the most commonly used unit operations in biopharmaceutical manufacturing. Available formats include direct or normal flow filtration (NFF) and cross or tangential flow filtration (TFF). These methods are used for sterilization and virus filtration, depth filtration or ultrafiltration, and diafiltration applications. Some common objectives include:
Qualification of a Chromatographic Column: Why and How to Do It
March 15th 2003by Anurag Rathore, Pharmacia Corporation FDA has become more knowledgeable about process chromatography ? and more demanding about column qualification. In the latest installment of BioPharm International's "Element of BioPharmaceutical Production," five industry experts share their insights on how to qualify a chromatographic column. Their advice: Write unambiguous SOPs. Focus on reproducibility of column packing. Choose appropriate metrics. And analyze your testing procedures to reduce the chance of erroneous results.
Guidelines for Optimization and Scale-Up in Preparative Chromatography
January 15th 2003Anurag Rathore, Pharmacia Corporation and Ajoy Velayudhan Optimizing your purification and separation process when your complex biological feedstock is ready for scale-up can be daunting. Your design process can be streamlined, simplified, and made cost efficient if you supplement your empirical approach with the theoretical and experimental tools presented in this article.
Process Validation: How Much to Do and When to Do It
by Anurag S. Rathore, Joseph F. Noferi, and Edward R. Arling from Pharmacia Corporation, and Gail Sofer, Bioreliance; Peter Watler, Amgen, Inc.; and Rhona O'Leary, Genentech, Inc. The trick to process validation, these industry experts argue, is to understand that it is a process that stretches through the whole product life cycle. Some secrets of success: Take a team approach; focus on the timing of the various stages of validation; avoid some common mistakes; and build your documentation as you go.
