“Jeopardy!” host Alex Trebek said Monday in an interview with ABC’s “Good Morning America” that he had resumed chemotherapy for stage 4 pancreatic cancer about a month after reporting he was “on the mend.”

At the time of the update, Trebek said, “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.”

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Despite the earlier progress, Trebek told the program he was undergoing another round of therapy, saying his doctors made the decision after he lost a significant amount of weight.

"My numbers went sky high, much higher than they were when I was first diagnosed. So, the doctors have decided that I have to undergo chemo again and that's what I'm doing," Trebek said, saying he had lost 12 pounds in a week.

The host said he had also dealt with depression since his initial diagnosis, adding, "When it happened early on I was down on myself. 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.”