Author Archives: Ken Hoffman

Letter to the Editor

The following letter came in response to recent articles on lot-release testing and host-cell proteins: Schwertner D, Kirchner M. Are Generic HCP Assays Outdated? BioProcess Int. 8(5) 2010: 56–62. Rieder N, et al. The Roles of Bioactivity Assays in Lot Release and Stability Testing. BioProcess Int. 8(6) 2010:33–42. Members of our peer-review board recommended publishing this longer than average communication. A Rational Approach to Process-Specific Host-Cell Protein Detection So-called generic host-cell protein (HCP) antibodies and assay kits have proven to…