BioPharm International-01-01-2002

by Robert T. Magari, Beckman Coulter Corporation In laboratory testing, you may want to use a new analytical method for measuring a chemical substance. To do so, you must be able to prove that the new method gives the same results as the previous one. Not all statistical methods for making laboratory comparisons are equally valid.

by Suggy S. Chrai, R. Murari, and Imran Ahmad Good manufacturing processes require that lipid vesicles be reproducibly uniform in size, carry the drug in sufficient concentration, and remain stable for an acceptable shelf-life under varying temperatures. Following these guidelines improves the analytical processes that support biopharmaceutical drug development.

by Harish Iyer, Felicia Henderson, Eric Cunningham, James Welbb, John Hanson, Christopher Bork, and Lynn Conley, IDEC Pharmaceuticals Corporation Scale-up changes in an antibody purification process can increase final product purity, make the process more robust, and reduce processing time. This case study focuses on the initial purification step -- protein A chromatography -- and offers data collected from several years of process development work on many different antibodies.