The document discusses the New Drug Application (NDA) process required by the FDA to approve new pharmaceutical drugs for sale and marketing in the United States. An NDA provides data from animal and human clinical trials to allow the FDA to determine if the drug is safe, effective and manufactured properly. It includes details on manufacturing, packaging, non-clinical and clinical testing results. If clinical trials confirm the drug's safety and effectiveness, manufacturers can file an NDA to request approval to produce and sell the drug. The NDA review process evaluates whether the drug's risks are outweighed by its benefits and whether labeling and quality controls are adequate.