data safety and monitoring board

A Data Monitoring Committee (DMC, sometimes also called Data Safety Monitoring Board or DSMB) is an independent group of experts who monitor patient safety and treatment efficacy data while a clinical trial is ongoing.
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a group of experts that evaluates clinical trials for safety and ethics. DSMB typically examine interim data as a trial progresses and determines whether it should be stopped or allowed to continue.

An independent committee, composed of community representatives and clinical research experts, that reviews data while a clinical trial is in progress to ensure that participants are not exposed to undue risk. A DSMB may recommend that a trial be stopped if there are safety concerns or if the trial objectives have been achieved.