Sesen Bio Rolling BLA for Bladder Cancer Therapy
Sesen Bio has begun a rolling BLA for vicinium for treating BCG-unresponsive non-muscle invasive bladder cancer. The company says it has submitted completed non-clinical and clinical modules, and a partially completed Chemistry, Manufacturing and Controls (CMC) module. It expects to complete the BLA submission with the finalization of the CMC module in 2020, and it will requeest a priority review. Vicinium was granted a fast-track designation in 2018.
Vicinium is described by the company as a locally-administered fusion protein. It comprises a recombinant fusion protein that “targets epithelial cell adhesion molecule (EpCAM) antigens on the surface of tumor cells to deliver a potent protein payload, Pseudomonas Exotoxin A,” it says.