Immunotherapy, a new, promising therapeutic approach that leverages the power of the immune system to fight cancer, is the cornerstone of MedImmune’s oncology portfolio. As the biologics research and development arm of AstraZeneca, MedImmune is striving to push the boundaries of science to deliver life-changing medicines to patients.
By targeting the immune system, immunotherapy may lead to durable and prolonged response rates across a range of cancer types. Tumours are heterogeneous in that there many different cells that often mutate and grow in different ways. In lung cancer, for example, there may be more than 60 different mutations. Cancer often manages to continue replicating and becomes resistant and returns to growth, making it challenging to treat. This happens despite chemotherapy, surgery and other targeting therapies. Even worse, some of the existing therapies – especially chemotherapy – actually diminish the immune response, thus limiting the body’s own natural defence mechanisms to fight tumours.