Intranasal Neuropeptide Y in Clinical Trial in Level Two Trauma Patients for PTSD and Acute Stress Disorder

Level 2 trauma patients admitted to Westchester Medical Center who consent and meet the inclusion criteria will answer a questionnaire, be tested on Beck Anxiety Index, assessed for vital signs and provide blood and urine samples for biomarker testing. before the intervention. Part 1 Dose Escalation: Subjects will receive a single infusion NPY or vehicle delivered to the upper nasal cavity with an intranasal device. The administration of intranasal NPY will follow the 3 plus 3 model and Fibonacci dose escalation scheme. Subjects will be assessed for Acute Stress Disorder (ASD) on the National Stressful Events Survey Acute Stress Disorder Sheet (NSESSS) at 3-7 and at 14-30 days post trauma, At \>60 days post trauma to be evaluated with the PTSD Symptom Scale Interview for DSM-5 (PSS-I-5) and given the Beck Anxiety Inventory test. Part 2 Dose Expansion Cohort: Once the maximal tolerated dose (MTD) is determined, we will follow it by a dose expansion cohort to obtain preliminary evidence of efficacy of intranasal NPY to alter the severity of ASD and inhibit the progression to PTSD and the usefulness of several biomarkers.