The stage of a clinical trial studying a drug or biological product, based on definitions by the FDA. The phase is based on the study’s objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4.
![DNA graphic](https://www.lupusresearch.org/wp-content/themes/lupusresearch/assets/images/oct-interior.jpg)
Together, ManyOne Can make a difference!