Anti-Inflammatory Challenge in Schizophrenia

Inclusion Criteria: * Men or women, 18-45 years of age with a primary diagnosis of Diagnostic and Statistical Manual of Mental Disorders (DSM-V) schizophrenia or schizoaffective disorder; * Willing and able to give written informed consent; * Plasma CRP 3mg/L; * Significant motivational deficit as reflected by a score \>17 on the Motivation and Pleasure Domain of the Brief Negative Symptom Scale. Of note, for patients who exhibit CRP\>10mg/L, additional CRP testing will be conducted at 2-week intervals as per American Heart Association/ Center for Disease and Control Prevention guidelines to establish stability and rule out acute inflammation/infection (along with physical exam and laboratory testing). * Patients must also have a negative urine drug screen at all study visits. Exclusion Criteria: * Any autoimmune disorder (as confirmed by laboratory testing); * History of tuberculosis infection as determined by QuantiFERON Gold or high risk of tuberculosis exposure; * Active hepatitis B or C infection or human immunodeficiency virus infection (as established by laboratory testing); * History of any type of cancer; * History of fungal infection; * History of recurrent viral or bacterial infections; * Unstable cardiovascular (including evidence of congestive heart failure as determined by physical examination and laboratory testing), endocrinologic, hematologic, hepatic, renal, and neurological disease (as determined by physical examination and laboratory testing); * Demyeli…