The final study looked at whether patients with a particular form of non-Hodgkin lymphoma should have regular CT scans to detect relapses after they finish treatment. The study showed most relapses weren't detected by the scans, but by patients' complaints of symptoms, routine physical exams or blood work.
"We can spare patients from the cost and excessive radiation from follow-up CT scans," Hudis said.
The final study looked at a new class of drugs called PI3K delta inhibitors, being tested in patients with chronic lymphocytic leukemia.
The specific drug tested in the trial -- Idelalisib -- was shown in a first phase of study to be safe in high-risk populations, and to help reduce the size of affected lymph nodes for long periods of time. It may soon lead to alternatives to chemo for slow-growing blood cancers, Swain said.