RecruitingPhase 2Drug trialPhase IIa Trial of a Selective Glucocorticoid Receptor Antagonist in the Treatment of Veterans With Posttraumatic Stress Disorder (PTSD) (Seven Study)The purpose of this study is to test the drug CORT108297, which blocks the hormone cortisol, for treatment of PTSD in Veterans, and establish a safety profile that will inform the design of future studies.