The document provides an overview of the Investigational New Drug Application (IND) and New Drug Application (NDA) processes for bringing new drugs to market. It describes how an IND must be submitted to the FDA to test an experimental drug in humans, and outlines the types of INDs, content requirements, and review process. An NDA contains extensive clinical trial data and is required for FDA approval to commercially market a new drug. The lengthy and costly process from initial research to marketing approval averages 15 years and $900 million per new drug.