Celyad Oncology SA, a biopharmaceutical company, focuses on the research and development of chimeric antigen receptor T (CAR-T) cell therapies for the treatment of cancer. The company is developing shRNA non-gene-edited technology, which allows for the development of allogenic CAR T-cells through the modulation of genes encoding the TCR without the need for gene editing; Multi-specific CAR T-cell platform that focuses on the NKG2D receptor; NKG2D-based CAR T-cell therapies; and B7-H6 targeting CAT T-cell therapies. It has licensing agreement with Novartis International AG regarding the United States patents related to allogeneic CAR-T cells; and research and development collaboration, and license agreements with Horizon Discovery / PerkinElmer for the use of its shRNA reagents to reduce expression of one or more defined targets. The company was formerly known as Celyad SA and changed its name to Celyad Oncology SA in June 2020. Celyad Oncology SA was founded in 2004 and is headquartered in Mont-Saint-Guibert, Belgium.