Press release
Nov 20, 2023  ·  Regulatory information

Third party withdraws appeal related to Cantargia patent

Cantargia (Cantargia AB; Nasdaq Stockholm: CANTA) today reported that the Notice of Appeal filed with respect to one of Cantargia’s granted European patents, EP3293202, has been withdrawn. Thereby, the patent remains in force with claims encompassing Cantargia’s lead asset nadunolimab and related variant antibodies, as originally decided by the EPO Opposition Division.

“As this appeal has now been withdrawn, we can conclude the broad scope of our patent portfolio and continue our focus on exploring the commercial opportunities of our clinical projects, nadunolimab and CAN10, and the IL1RAP platform,” said Göran Forsberg, CEO of Cantargia.

In late 2021, oppositions were filed by third parties against EP3293202. Following oral proceedings held on July 5, 2023, the EPO Opposition Division decided that EP3293202 would be maintained with a new claim scope, encompassing a broad range of variants of nadunolimab with similar functional and structural properties. As communicated on October 4, 2023, one of the opponents subsequently filed a Notice of Appeal against the EPO Opposition Division’s decision to maintain EP3293202. This appeal has now been withdrawn. Thus, the appeal process will not continue, and EP3293202 will remain in force with claims as originally decided by the EPO Opposition Division.

Cantargia has extensive patent protection for IL1RAP-targeting antibodies and their use in therapy and diagnostics of cancer, including leukemias and solid tumors. Cantargia’s patent portfolio includes over 100 patents globally, granted in key commercial territories such as the US, Europe, Japan and China. A composition of matter patent for CAN10 has been granted in the US, with additional applications pending in other major territories.