Who We Are Sirtex Medical is a global healthcare business with offices in Boston, Sydney, Germany, and Singapore, working to improve outcomes in people with cancer. Our current lead product is a targeted radiation therapy for liver cancer called SIR-Spheres® Y-90 resin microspheres. More than 100,000 doses have been supplied to treat patients with liver cancer at more than 1,300 medical centers in over 50 countries. The Director of Regulatory Affairs will be responsible for overseeing the development and implementation of regulatory strategies for product development and commercialization in emerging disease areas. This person will play a role in shaping cohesive regulatory strategies across all programs and ensure the effective integratio