Checkpoint Therapeutics BLA for Skin Cancer
Checkpoint Therapeutics has submitted a BLA for cosibelimab, an investigational anti-PD-L1 antibody for treating patients with metastatic cutaneous squamous cell carcinoma (cSCC) or locally advanced cSCC who are not candidates for curative surgery or radiation. The submission is based on clinical trial data showing that cosibelimab-treated patients had an objective response rate of 47.4%.
Cutaneous squamous cell carcinoma is the second most common type of skin cancer in the U.S., with about one million cases diagnosed annually, according to the Skin Cancer Foundation. Cosibelimab works by inhibiting the interaction between PD-L1 and its receptors PD-1 and B7.1, which removes the suppressive effects of PD-L1 on anti-tumor CD8+ T-cells to restore the cytotoxic T cell response, the company says.