Biomarker Study of Acamprosate in Schizophrenia

We propose to measure the response of symptoms and cognition in people schizophrenia given acamprosate or placebo. We hypothesize that symptoms and cognition will improve following two weeks of acamprosate. We will also use proton magnetic resonance spectroscopy (MRS) to examine the effect of acamprosate on glutamate \& glutamine (Glu\&Gln) brain levels in people with schizophrenia. We hypothesize that Glu\&Gln concentrations in people with chronic schizophrenia will increase following two weeks of treatment with acamprosate. The proposed study will consist of 50 individuals with chronic schizophrenia/schizoaffective disorder, 18-55 years old, from in/outpatient programs at the Maryland Psychiatric Research Center (MPRC). The dose of acamprosate will follow manufacturer recommendations with two 333mg tablets given three times per day. MRS will be acquired from areas involved in schizophrenia \[dorsolateral-prefrontal cortex (DLPFC) and anterior cingulate cortex (ACC)\] at baseline and week two. Symptom ratings and cognitive testing will occur at baseline and be repeated at week two.