I’ve seen lots of promising cancer research go nowhere, but eventually someone (multiple someones) is going to come up with some very nice broadly applicable treatment methodology and the big C will get demoted, in lots of cases, to just another medical inconvenience. Maybe this will be one of the keys:
Jayatilaka and a team at Johns Hopkins discovered the biochemical mechanism that tells cancer cells to break off from the primary tumor and spread throughout the body, a process called metastasis. Some 90 percent of cancer deaths are caused when cancer metastasizes. The team also found that two existing, FDA-approved drugs can slow metastasis significantly.
I will just add here that many of us who own dogs with cancer would be happy to test new therapies. Though Dora shows no signs as yet of returning tumors, she does still have a fairly good chance of dying this year. If she does, it will definitely be because of the metastasis of the original carcinoma.