Why is early-stage cancer detection so much better for survival?

The stage at which cancer is detected is the single most important predictor of treatment success and survival. Stage I cancers are typically small, localized to the organ of origin, and have not spread to lymph nodes or other tissues. At Stage I, surgery alone can often achieve a cure. The 5-year survival rate for Stage I disease exceeds 90% for most cancer types. By Stage IV, cancer has spread to distant organs (metastasized), treatment options are significantly limited, and the 5-year survival rate for most cancer types falls below 20%. The gap between Stage I and Stage IV survival represents the clinical value of early detection — and closing this gap through proactive screening is OncuraKit's entire mission.