Yes throat cancer is one of the most aggressive cancers that a person can get and if not caught early on and treated early on the throat cancer and spread pretty aggressively and lead to death.
Throat cancer is usually not curable once the throat cancers malignant cells spread to parts of the body beyond the neck and head.
So if you want to have a good chance of surviving throat cancer you must get treated for the throat cancer in it's very early stages before it spreads too far.
Some people choose to not have the throat cancer treated while other people have been cured of throat cancer and live a good long life.
But to increase your chances of surviving throat cancer the throat cancer must be caught early on.