Cohort

A group of participants sharing a characteristic, followed together.

Learning 

What it means

A cohort is a defined group followed over time. In early-phase studies, "cohort" often refers to a small batch of participants receiving the same dose before the next batch begins.

Why it matters if you take part

In dose-escalation studies, which cohort you join determines the amount you receive and when you start.

Related terms

This explains how clinical research works. It is not medical advice and does not describe any specific condition or treatment. Only a trial site can determine whether someone can take part in a study.