MISSION VIEJO, Calif.--(BUSINESS WIRE)--Aeolus Pharmaceuticals, Inc. (OTC Bulletin Board: AOLS) announced today the initiation of a second study, in mice, to determine the optimal length of treatment with AEOL 10150 when used as a countermeasure to Acute Radiation Syndrome (ARS) in the lungs. This study, led by Zeljko Vujaskovic, M.D. Ph.D. of Duke University, is designed to build on the recently completed study that demonstrated the efficacy of AEOL 10150 as a treatment for damage to the lungs due to exposure to radiation, and determine the most effective duration of delivery for treatment after exposure.