Cancer isn't a single disease that that can ever really be cured in the way that infectious diseases can be cured. But new drugs have raised 5-year survival rates for many types of cancer. The pharmaceutical industry at least is still highly productive.
Unfortunately we are offsetting those medical gains with higher incidence of some types of cancer. This is due to exposure to carcinogens (toxic chemicals) and unhealthy lifestyles (mainly obesity).
We were gonna cure cancer and explore space. It’s shameful.