lowest number of volunteers.
Phase 2: Phase 2 trials are slightly larger, and test whether a treatment is both safe and effective.
Phase 3: Phase 3 trials are later phase trials. Phase 3 trials are the largest, typically enrolling hundreds or thousands of participants, and test for safety and effectiveness in a larger population.
RELATED: The 4 Stages of Clinical Trials And What They Mean
Do you fit the requirements?
After you have gone through all of the steps listed above and have found a trial that you are interested in, it’s important that you understand the requirements. Every clinical trial is different, so the specific requirements of the trial you are interested in may vary from the next. In general, specific requirements typically relate to the number of site visits, mandatory medical procedures and how patients must report on metrics throughout the study.
During the informed consent process, the research staff will go over these requirements with you and allow you to enroll or withdraw yourself from the trial at any time.