831: RANDOMIZED, BLINDED, PLACEBO-CONTROLLED PRECLINICAL TRIAL IN A LARGE ANIMAL TBI MODEL. (January 2022) - Mazandi, Vanessa; Jang, David; Shin, Samuel; Ranganathan, Abhay; Delso, Nile; Landis, William; Chawla, Sanjeev; Browne, Kevin; Starr, Jonathan; Cullen, Kacy; Kilbaugh, Todd