Original sentence: However, the hopes created by the dramatic initial success of cancer chemotherapy were not fully borne out, as conventional cytotoxic chemotherapy has fallen short of the high expectations of curing the most common cancers.In fact, it was only later that the pharmaceutical industry became heavily involved.It has also proven effective in the adjuvant setting, in reducing the risk of recurrence after surgery for high-risk breast cancer, colon cancer, and lung cancer, among others.New knowledge about the molecular biology of cancer and new tools to specifically target aberrant proteins are opening up new possibilities.Nonetheless, cancer remains a major cause of illness and death, and conventional cytotoxic chemotherapy has proven unable to cure most cancers after they have metastasized.The early revolution in cancer therapy was largely a North American experience, powered by an optimistic and forward-looking United States Federal government, which funded the NCI with the same "big-idea" philosophy as the Apollo Program.The next two decades will see two competing strategies of cancer therapy: small molecular inhibitors and adoptive immunotherapy with re-programmed effector cells will match strengths in an attempt to finally cure cancer
Edited sentence: It has also proved effective in the adjuvant setting, in reducing the risk of recurrence after surgery for high-risk breast cancer, colon cancer, and lung cancer, among others.Nonetheless, cancer remains a major cause of illness and death, and conventional cytotoxic chemotherapy has proved unable to cure most cancers after they have metastasized