Clinical trials have stringent guidelines indicating who can and cannot participate in the study. These guideline are referred to as eligibility criteria. Each study has different eligibility criteria based on the purpose of the study and the condition that is being studied. Some of the criteria may include: age, gender, type and stage of disease, other medical conditions, and previous treatment history.
Informed consent will be reviewed and obtained with each potential participant. This process is intended to protect the participant and inform the person of the potential risk and benefits to participating in the study. It is very important to note that consent may be withdrawn at any time during the study by the participant.