The Era of Personalized Cancer Prevention and Early Detection has Begun.
Conventional cancer screening was designed for populations. PreOncology™ was built for the individual.
PreOncology delivers the first medical-grade, oncologist-led cancer prevention and early detection program built to identify cancer at Stage Alpha, so that cure, not lifelong treatment, becomes the expected outcome.
The System Was Designed to Be Reactive
Every year, cancers are diagnosed at an advanced stage, when cure is often no longer possible. Conventional screening was not designed to prevent that. It was designed to detect the most common cancers in the general population, at a single point in time, without regard for individual biology or risk.
PreOncology was founded by oncologists who spent decades on the wrong side of that timeline. We built what the field was missing.
Detect Cancer at Stage Alpha
The PreOncology Program™ delivers continuous, personalized cancer prevention calibrated to each member’s individual biology and risk profile, combining computational modeling, molecular diagnostics, and precision screening under the direct oversight of board-certified medical oncologists.
The program is designed to detect cancer at Stage Alpha, the earliest point at which a confident, actionable determination can be made for that individual, so that cure, not lifelong treatment, becomes the expected outcome.
Collaborating with Leading Data Partners Worldwide


























A New Standard of Care
The PreOncology Program is designed for two groups of people: the physicians who refer it, and the members it serves. For both, it replaces reactive, population-based screening with continuous, personalized cancer prevention built around the individual.
Primary Care Physicians
Bring the most advanced standard of personalized cancer prevention to your patients, backed by clinical infrastructure and oncologist oversight.
Members
The first cancer prevention program built around you, not a population. Continuously updated to your individual biology and overseen by board-certified medical oncologists.
Jose Barreau, MD
Founder and CEO, PreOncology
Every day a cancer is found late is a day the system failed someone. We have spent our careers on the receiving end of that failure. As oncologists, we wanted our expertise to reach patients earlier — at the point where prevention and very early detection is still possible. By partnering with primary care physicians, we finally can.