I didn't see the story, but I would bet it was Ket
Post# of 72440
"Cases such as Carter's — in which the cancer spreads to the brain — can be especially difficult to treat, Turnham said. Few drugs can get past the "blood-brain barrier," a system that protects the brain from bacteria and infections. But drugs such as Keytruda appear to help shrink brain tumors indirectly, by revving up immune cells that can cross into the brain, he said."
http://www.usatoday.com/story/news/2015/12/07.../76916198/
One point that the bashers over yonder missis that if Kevetrin is successful in just stopping cancer growth or Metastasis it could be huge.
"While the new cancer therapies may not cure cancers, they can sometimes keep them under control for a long time. Doctors now talk about treating cancer as a chronic disease, similar to diabetes and heart disease, Shepard said."
"About one-third of patients who take Keytruda get a benefit, either because the cancer shrinks or stops growing,"