Alex Trebek Back In Chemotherapy After Numbers 'Went Sky High"

Unfortunately, Jeopardy! host Alex Trebek is back in chemotherapy.

Trebek had ceased his treatment for stage 4 pancreatic cancer, though is headed back to treatment after his numbers reportedly went "sky high."  Trebek told Good Morning America, "I was doing so well. And my numbers went down to the equivalent of a normal human being who does not have pancreatic cancer.  So we were all very optimistic. And they said, 'Good, we're gonna stop chemo, we'll start you on immunotherapy.'"

Trebek has been the host of Jeopardy! since 1984. He is contracted to host the show until 2022.