TABLE V

Using qPCR in Place of Infectivity and TEM Assays

Process StepCurrent FIH StudyStreamlined FIH Studya
Cell Culture/Harvest (RVLP)TEMqPCR
Protein A ChromatographyqPCRNot tested
Low pH or Detergent InactivationInfectivityInfectivity
Other ChromatographyInfectivityqPCR
Viral FiltrationInfectivityqPCR
  • a Bold text indicates changes in virus safety strategy of streamlined FIH studies compared with current FIH studies.