This is interesting tech they are working on. Basically an anti-biotic for cancer, and it is something that can be used both in a targeted sense, and universally.
It attacks certain peptide chains in cancer cells, so it won’t (hopefully) target healthy cells. It sounds like they are unsure of the ability of this method to completely eradicate a cancer, as the stem cells can be more resistant to treatments, but they envision this cancer treatment as working similar to the current HIV/AIDS management plan.
You can have cancer, but take maintainence drugs to prevent the cancer from growing and spreading, at the very least it would extend the lives of cancer patients with (hopefully) minimal side effects.
But, the real dream is the customization
The MuTaTo cancer treatment will eventually be personalized. Each patient will provide a piece of his biopsy to the lab, which would then analyze it to know which receptors are overexpressed. The individual would then be administered exactly the molecule cocktail needed to cure his disease.
However, unlike in the case of AIDS, where patients must take the cocktail throughout their lives, in the case of MuTaTo, the cells would be killed, and the patient could likely stop treatment after only a few weeks.