1. An Investigational New Drug (IND) application is required for testing an experimental drug in humans and must be submitted to regulatory agencies like the FDA for approval.
2. The IND application contains preclinical research data on animal and microbiological studies as well as clinical trial protocols, manufacturing information, and investigator details.
3. There are different types of INDs including commercial, non-commercial, emergency use, and treatment INDs which have varying requirements and purposes in the drug development process.