Pfizer, Bristol revive cancer drugs that rev up immune system

ReutersPfizer, Bristol revive cancer drugs that rev up immune systemReutersPfizer Inc, which is lagging rivals in the lucrative field of cancer immunotherapies, has been the first to report early data of an "accelerator" treatment that targets a protein called 4-1BB. It has at least five other Phase I studies underway or in ...and more »

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