Teva Pharmaceutical Industries has signed a license agreement with Checkpoint Therapeutics. The contract will allow Checkpoint Therapeutics to receive the exclusive worldwide rights to develop and commercialize CEP-8983 and its small molecule prodrug, CEP-9722, an oral poly (ADP-ribose) polymerase (PARP) inhibitor in early clinical development for solid tumours. The product is a novel, orally active, small molecule selective inhibitor of PARP-1 and PARP-2 enzymes that will be developed by Checkpoint as both a monotherapy and in combination with other anti-cancer agents, including Checkpoint's novel immuno-oncology and checkpoint inhibitor antibodies currently in development.

Across multiple tumor types, including breast, ovarian and prostate cancer, PARP inhibitors have shown promising activity as a monotherapy against tumors with existing DNA repair defects, such as BRCA1 and BRCA2, and as a combination therapy when administered together with anti-cancer agents that induce DNA damage.