Just a week after returning as our beloved Jeopardy host, Alex Trebek has revealed that he needs another round of chemotherapy to fight his stage 4 pancreatic cancer after his 'numbers went sky high'.  

In an interview with Good Morning America, Trebek told T.J. Holmes that his doctors have decided to have him undergo chemo again after he lost a large amount of weight.

"I was doing so well. And my numbers went down to the equivalent of a normal human being who does not have pancreatic cancer," Trebek said in the interview. "So we were all very optimistic. And they said, 'Good, we're gonna stop chemo, we'll start you on immunotherapy.'"

Here is what he shared on the Jeopardy! YouTube Channel:

"One of the things I have learned in the past six months is that the course of pancreatic cancer treatment is not a straightforward affair.

There are always curves and unexpected events.  

This summer, because I was making such good progress, we thought I was finished with chemo. That was a bit premature and certainly over optimistic.

I began immunotherapy, but that didn't go well. My numbers went south – dramatically and quickly.  The doctors are now reexamining my situation, and it appears I will be having more chemo treatments ahead of me.

Hey, they worked very well the first time, so we're expecting good results again.   Please keep me in your good thoughts and prayers. It really means a lot.

The game show host also revealed his battle with depression that started when he was first diagnosed saying that sometimes he feels a “surge of sadness” and “depression.”

“When it happened early on I was down on myself,” he told “GMA.” “I didn’t realize how fallible each of us is in his or her own way … I talk to the audience sometimes and I get teary eyed for no reason. I don’t even bother to explain it anymore, I just experience it. I know it's a part of who I am and I just keep going.”