![](https://researchhso.stage.drupal.uiowa.edu/sites/hso.research.uiowa.edu/files/default_images/HSOeBook.jpg)
- i. IND - Investigational New Drug
- ii. Expanded Access
- iii. Investigational Use of FDA-approved Drugs or Biologics
- iv. Investigoator-Initiated Research with Drugs or Biologics
- v. Emergency Settings: Research in the Emergency Setting (Planned Emergency Research)
- vi. Emergency Use of an Investigational Drug or Device
- vii. Placebo-Controlled Trials
- viii. Washout Issues in Drug Treatment Studies