Abstract
Researchers have temporarily halted accrual to a trial of bevacizumab (Avastin) and two chemotherapy regimens for early-stage colon cancer after they found an unexpected number of non-cancer-related deaths in one of the study arms. The data safety monitoring board (DSMB) recommended that enrollment be delayed until 60-day mortality data could be collected and reviewed for all patients currently in the study. Experts say that the imbalance in deaths is likely to be a statistical anomaly, but they agree that the safety committee acted appropriately.

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