Provided herein is a method of treating, preventing, or alleviating one or more symptoms of pancreatic cancer in a subject, comprising administering to the subject therapeutically effective amounts of (i) vitamin C, or a pharmaceutically acceptable salt, solvate, or hydrate thereof, and (ii) a vitamin K compound, or a single enantiomer, a mixture of enantiomers, or a mixture of diastereomers thereof, or a pharmaceutically acceptable salt, solvate, hydrate, or prodrug thereof.
