Janssen - Glucose Regulation/Risp/Olanz

Summary

Abnormalities in peripheral glucose regulation and type 2 diabetes can occur more commonly in individuals with schizophrenia than in healthy subjects or in other psychiatric conditions. Antipsychotic treatment may contribute significantly to abnormalities in glucose regulation. Hyperglycemia can contribute to long-term cardiovascular disease risk that may already be increased in patients with schizophrenia due to higher rates of smoking, sedentary life style, obesity and under-treated hypertension and dyslipidemia. This project will characterize the effects on glucose control of the two most commonly prescribed newer antipsychotic medications, risperidone and olanzapine, in patients with schizophrenia. This proposal specifically hypothesizes that olanzapine treatment will be associated with decreases in insulin sensitivity (SI), without effects on insulin secretion. Treatment-related effects on glucose effectiveness (SG) will be explored.

Timeline

Start

2000-07

Primary completion

2006-10

Completion

2006-10

Publications

• Results Haupt DW, Fahnestock PA, Flavin KA, Schweiger JA, Stevens A, Hessler MJ, Maeda J, Yingling M, Newcomer JW. Adiposity and insulin sensitivity derived from intravenous glucose tolerance tests in antipsychotic-treated patients. Neuropsychopharmacology. 2007 Dec;32(12):2561-9. doi: 10.1038/sj.npp.1301392. Epub 2007 Mar 21.
• Results Haupt DW, Luber A, Maeda J, Melson AK, Schweiger JA, Newcomer JW. Plasma leptin and adiposity during antipsychotic treatment of schizophrenia. Neuropsychopharmacology. 2005 Jan;30(1):184-91. doi: 10.1038/sj.npp.1300563.

Drugs

Indications