β-Cell Function in Schizophrenic Subjects on Atypical Antipsychotic drugS (SANAT)
The purpose of this study is to determine whether atypical antipsychotic drugs (commonly prescribed for treating schizophrenia) induce changes in anthropometry and metabolism, including alteration in insulin sensitivity and/or insulin secretion by the pancreas, when given to lean, non-diabetic, individuals who are antipsychotic drug(s)-naïve, and free of metabolic syndrome at enrollment.
|Study Design:||Time Perspective: Prospective|
|Official Title:||Phase 1 Study of Insulin Sensitivity, Adjusted β-Cell Function and Adiponectin Among Lean Drug-naïve Schizophrenic Subjects Treated With Atypical Antipsychotic Drugs|
|Study Start Date:||October 2005|
|Study Completion Date:||February 2007|
36 lean schizophrenic subjects free of metabolic syndrome(M:F 24:12; Caucasian n=23; North-African n=12; South-Asian n=1)aged 35±9 years
|Drug: quetiapine or olanzapine or risperidone or aripiprazole|
Atypical antipsychotic drugs (AADs) induce weight gain, truncal adiposity and may engender a metabolic syndrome which may progress to IFG/IGT or DM. AADs effects in lean schizophrenic patients without metabolic syndrome are not documented, especially the relationship between weight gain and changes in insulin sensitivity (S), beta-cell function (β), and circulating adiponectin. We prospectively determined the outcome of 9-month therapy with AADs on anthropometrics, metabolism and adiponectin, including HOMA-modeling of S, β, and βxS (hyperbolic product, assessing individual β adjusted for S)in 36 schizophrenic subjects (M:F 24:12; Caucasian n=23; North-African n=12; South-Asian n=1) aged 35±9 years (mean±1SD) free of MetS (NCEP-ATPIII).
|Brussels, Belgium, 1030|
|Principal Investigator:||Philippe M ORIOT, MD||Université Catholique de Louvain|