EMPOWIR:Enhance the Metabolic Profile of Women With Insulin Resistance

Summary

The goal of the study is to identify and treat women with midlife weight gain who have normal blood sugars, but increased insulin levels (hyperinsulinemia) following the performance of a glucose tolerance test. The study will evaluate effects of a unique carbohydrate modified diet alone and in combination with metformin(MF) and Avandamet® (MF plus rosiglitazone (RSG)) on insulin levels in a wide range of ethnically diverse women (aged 35-55) at three academic medical centers. The primary study hypothesis is that insulin sensitizing medications, in combination with alterations in carbohydrate intake, will reduce insulin levels and improve established risk factors for the metabolic syndrome. The alarming prevalence of obesity, diabetes, and related comorbidities and the paucity of easily adopted, cost-effective preventive strategies for high risk populations, suggest that pharmaco-therapies and dietary regimens targeted to reducing insulin resistance could have important clinical and public health implications.

Timeline

Start

2008-01

Primary completion

2011-01

Completion

2011-01

Publications

• Background Mogul HR, Peterson SJ, Weinstein BI, Zhang S, Southren AL. Metformin and carbohydrate-modified diet: a novel obesity treatment protocol: preliminary findings from a case series of nondiabetic women with midlife weight gain and hyperinsulinemia. Heart Dis. 2001 Sep-Oct;3(5):285-92. doi: 10.1097/00132580-200109000-00002.
• Background Mogul HR, Weinstein BI, Mogul DB, Peterson SJ, Zhang S, Frey M, Gambert SR, Southren AL. Syndrome W: a new model of hyperinsulinemia, hypertension and midlife weight gain in healthy women with normal glucose tolerance. Heart Dis. 2002 Mar-Apr;4(2):78-85. doi: 10.1097/00132580-200203000-00004.
• Background Mogul HR, Peterson SJ, Weinstein BI, Li J, Southren AL. Long-term (2-4 year) weight reduction with metformin plus carbohydrate-modified diet in euglycemic, hyperinsulinemic, midlife women (Syndrome W). Heart Dis. 2003 Nov-Dec;5(6):384-92. doi: 10.1097/01.hdx.0000098361.84908.9c.
• Background Mogul HR, Marshall M, Frey M, Burke HB, Wynn PS, Wilker S, Southern AL, Gambert SR. Insulin like growth factor-binding protein-1 as a marker for hyperinsulinemia in obese menopausal women. J Clin Endocrinol Metab. 1996 Dec;81(12):4492-5. doi: 10.1210/jcem.81.12.8954066.
• Mogul H, Freeman R, Nguyen K. METFORMIN-SUSTAINED WEIGHT LOSS AND REDUCED ANDROID FAT TISSUE AT 12 MONTHS IN EMPOWIR (ENHANCE THE METABOLIC PROFILE OF WOMEN WITH INSULIN RESISTANCE): A DOUBLE BLIND, PLACEBO-CONTROLLED, RANDOMIZED TRIAL OF NORMOGLYCEMIC WOMEN WITH MIDLIFE WEIGHT GAIN. Endocr Pract. 2016 May;22(5):575-86. doi: 10.4158/EP151087.OR. Epub 2016 Jan 20.
• Mogul HR, Freeman R, Nguyen K, Frey M, Klein LA, Jozak S, Tanenbaum K. Carbohydrate modified diet & insulin sensitizers reduce body weight & modulate metabolic syndrome measures in EMPOWIR (enhance the metabolic profile of women with insulin resistance): a randomized trial of normoglycemic women with midlife weight gain. PLoS One. 2014 Sep 26;9(9):e108264. doi: 10.1371/journal.pone.0108264. eCollection 2014.

Drugs

Indications