BioSenic S.A. is a biotechnology company that develops cell therapy products and treatments for autoimmune and inflammatory diseases in Belgium and France. It offers arsenic trioxide (ATO) and oral arsenic trioxide (OATO) platforms, as well as medicinal products including ArsciMed, an intravenous drug for autoimmune diseases. The company is also developing 4P004v, which is in a Phase I clinical trial for veterinary use. BioSenic S.A. is headquartered in Saintes, Belgium.