Alex Trebek, longtime host of Jeopardy, gave another update on his fight with pancreatic cancer. 

"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," Trebek shared in a video, "This past 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 re-examining 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."

Trebek requests again that people continue to pray for him.

"Please keep me in your good thoughts and prayers. Believe me, it means a lot."