What are eligibility criteria in clinical trials?

Eligibility criteria in clinical trials are predefined standards that determine who can participate in the study. These criteria typically include specific characteristics such as age, sex, medical history, and current health conditions, which are crucial for ensuring that the participants are suitable for the intervention being tested. This structured approach aims to create a homogenous group to reduce variability and ensure that the results of the trial are valid and applicable to the target population.

By establishing eligibility criteria, researchers can ensure that the study meets its objectives effectively while protecting the safety and wellbeing of participants. It also helps in identifying the relevant population for which the treatment is intended, thus enhancing the generalizability of the study findings.