This really sounds like the way forward to tailored treatment.
Scientists have been able to predict how cancer patients will respond to therapy by growing miniature versions of their tumours in the laboratory. They say the groundbreaking work could lead to "smarter, kinder and more effective treatments". The study, in the journal Science, was 100% accurate at telling which drugs would fail and this could spare patients from unnecessary side-effects. Mini-tumours could also be a powerful way of testing new drugs.