'Tumors just vanished': Cancer patients now in remission after drug trial

Treatment with the immunotherapy dostarlimab showed promising results in a small trial of a dozen rectal cancer patients, according to new r...

Treatment with the immunotherapy dostarlimab showed promising results in a small trial of a dozen rectal cancer patients, according to new research, but further study is needed and it is too early to call it a cure. CNN's Erin Burnett speaks to Dr. Andrea Cercek, an oncologist at Memorial Sloan Kettering Cancer Center.

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