We need to develop a Macrophage Cell that kills only Cancer Cells in a body which is under attack. Just as the Koala Bear only eats eucalyptus leaves this cell would only seek and kill cancer cells. It would be designed to self destruct if none of these Cancer cells exist within the area it has been inserted in. Whether it be in the Pancreas, Brain, Lung etc these cells would get to work as soon as they are inserted into the “affected body”. If this cure would work we would be able to eliminate Cancer without harming the bodies it is in.
FOOTNOTE- I had to write this just in case it is not being developed yet.