This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. Accidental or purposeful exposure of people to high levels of radiation poses a serious immediate risk and potential long-term health risk. No FDA approved radiomitigant effective 24-48h after radiation injury is available today. Thus, there is a critical unmet medical need to shield the population from these harmful effects of unintended radiation. We established in murine models that octadecenyl thiophosphate (OTP) administered 26 h after lethal levels of gamma-irradiation by a single subcutaneous injection increases crypt counts and survival with a dose modification factor of 1.2. The overall objective of this application is to develop OTP as a gastrointestinal radiomitigator for use in human subjects exposed to lethal ionizing radiation either as a result of nuclear accident or terrorist attack. This project will provide non-human primate safety and efficacy data for a """"""""drug master file"""""""" for octadecenyl thiophosphate as a gastrointestinal radiomitigator for use in human subjects exposed to lethal ionizing radiation enabling the filing of an IND application based on the Animal Rule of the FDA.

National Institute of Health (NIH)
National Center for Research Resources (NCRR)
Primate Research Center Grants (P51)
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Special Emphasis Panel (ZRR1-CM-5 (01))
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University of California Davis
Veterinary Sciences
Schools of Veterinary Medicine
United States
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