Oh, they claim they are making progress but earlier detection only makes their treatments look more effective. Most patients probably do not live any longer than if they had never had treatment and they would have had a much better quality of life.
My grandmother never treated her breast cancer and lived for at least seven years after she noticed a lump. By the time a lump appears, the cancer could already have been there for a very long time.
In all fairness, I have had relatives who treated their cancer who seem to be doing quite well.