How long will the pill-taking phase of the multivitamin component of the PHS II trial last?
The Data and Safety Monitoring Board of the trial reevaluates the multivitamin data annually to determine whether to continue or stop pill taking. Pill taking is planned to end in a few years, with the goal of producing a definite answer to the question of whether multivitamin supplements have an effect on the risk for major cardiovascular events and cancer.