Sanofi Discontinuing TheraCys Bladder Cancer Therapy
Sanofi Pasteur has decided to discontinue making TheraCys (BCG live attenuated), indicated for treating non-muscle invasive bladder cancer. In an email sent to urologists late last week and obtained by Forbes contributor Benjamin Davies, the company notes how it brought the product back online after resolving GMP issues at a Canadian manufacturing plant. Unfortunately, the company said, all its efforts “cannot guarantee the long-term continuity and supply of the product.” Production is scheduled to stop mid-2017. Merck is the only other manufacturer of BCG and has had its share of manufacturing problems associated with its product, which led to earlier product shortages (see earlier story).
In 2012, FDA cited Sanofi Pasteur in a Warning Letter after two foreign inspections documented GMP deviations related to TheraCys. The agency said Sanofi failed to establish the accuracy, sensitivity, specificity, and reproducibility of test methods. For example, the letter said sterility for all TheraCys BCG Live lots manufactured in a certain building cannot be assured. Test method revalidation conducted from March through April “failed acceptance criteria for bacteriostasis/fungistasis testing,” it said. FDA also said there have been 58 documented non-conformances related to mold isolation within the BCG aseptic processing areas. And the firm failed to assure an adequate system for monitoring environmental conditions, and for cleaning and disinfecting aseptic processing areas and equipment.
In responding to FDA-483 inspection observations, Sanofi indicated that manufacturing had been suspended in order to renovate the Toronto BCG manufacturing facility to improve the environmental quality, according to the Warning Letter.