Cancer trials face a 95% failure rate despite advancements like CAR T-cell therapies. Nuclear isotopes, used for imaging and therapy, show promise in targeting cancer cells while sparing healthy tissues. Actinium-225 and Lutetium-177 are particularly promising, with challenges including supply, delivery precision, and patient-specific dosing. AI could optimize isotope production, delivery, and personalized treatment plans, though data limitations and high costs remain significant hurdles.