IND (investigational new drug)
An application submitted to the FDA before human clinical trials can begin. The IND includes preclinical data, manufacturing information, and the proposed clinical trial protocol.
Frequently Asked Questions
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Related Terms
The staged process of testing a new drug in humans: Phase 1 (safety), Phase 2 (efficacy), Phase 3 (large-scale confirmation), and Phase 4 (post-marketing surveillance). Each phase has specific objectives and requirements.
NDA (new drug application)The formal application to the FDA requesting approval to market a new drug. Contains all clinical trial data, manufacturing details, and proposed labeling. Review takes 6–12 months.
PreclinicalThe research stage involving in vitro (cell culture) and in vivo (animal) studies before human clinical trials begin. Most peptides outside GLP-1 agonists remain at this evidence stage.