RT Journal Article SR Electronic T1 Investigational New Drugs: Application, Process, and Trial JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 236 OP 242 VO 18 IS 4 A1 Levine, Geoffrey A1 Abel, Neil YR 1990 UL http://tech.snmjournals.org/content/18/4/236.abstract AB This is the fourth article in a four-part series of nuclear medicine updates. Upon completion of this article, the reader will have: (1) an understanding of the various phases involved in investigational new drugs (IND), (2) a reference for preparing an IND, and (3) an awareness of the common pitfalls associated with preparing and fulfilling the commitment of an IND.