There is a growing need to develop pharmacologic interventions to improve metabolic function in women with polycystic ovary syndrome (PCOS). Given that PCOS is a frequent condition and weight loss is essential but difficult to achieve, it is important to study if the effect on body weight reported in other studies can be confirmed in a selected population of hyperandrogenic patients, especially with medications currently approved for weight reduction. High dose liraglutide alone results in significant weight reduction in obese women without PCOS. There is limited data on weight loss with high dose liraglutide in non-diabetic females with PCOS treated with this agent . Studies on the effect of anti-obesity medication combined with lifestyle changes on body weight and composition and androgen excess in obese women diagnosed with PCOS are lacking. The investigators aim to elucidate the most efficacious weight reduction regime in obese PCOS women. The investigators further hope to determine which treatment(s) addressing the multifaceted disturbances of this disorder in patients with PCOS and obesity emerges as the preferable therapy.
The drug, liraglutide 3.0 mg was approved for chronic weight management in management in obese adults with an initial BMI of 30 kg/m2 or greater or in overweight adults BMI of 27 kg/m2 or greater with at least one weight-related co-morbid condition as an adjunct to a reduced-calorie diet and increased physical activity. Liraglutide is an acylated human glucagon-like peptide -1 (GLP-1) analog that binds to and activates the GLP-1 receptor. It lowers body weight through decreased caloric intake while stimulating insulin secretion and reducing glucagon via a glucose-dependent mechanism. For obesity management, patients may lose weight with GLP-1 receptor agonists due to other unique actions. Glucagon-like peptide-1 receptor agonists (GLP-1RAs) can slow gastric emptying and increase satiety. While predictors of weight loss success for the general population are available (protein intake, weight loss medications), predictors of weight loss success may differ between normal and hyperandrogenic women. Glucagon-like peptide 1 agonists are linked with dose dependent weight lowering potential in different obesity related populations. The weight loss effects of GLP-1RAs previously demonstrated in diabetic and obese non-diabetic patients, offer a unique opportunity to expand the medical options available to patients with PCOS. Given this lack of information, the aim of the present study was to investigate the effects of liraglutide 3mg vs. placebo on body composition as well as hormonal and metabolic features in non-diabetic obese women with PCOS.The non-diabetic obese female with PCOS offers a unique model to study the relationship between insulin resistance and adiposity. The investigators propose a double-blind, placebo-controlled 30-week trial designed to directly examine the therapeutic effects of liraglutide 3 mg (LIRA 3 mg) compared to placebo on body weight, hormonal and cardiometabolic parameters in obese non-diabetic women with PCOS. All patients will receive diet and lifestyle counseling, including advice on exercise commencing during the lead-in period and continuing throughout the study. In this study, the investigators will examine the efficacy of LIRA 3mg on body weight and body composition, reproductive function metabolic parameters and cardiovascular risk factors in a well-defined group of pre-menopausal obese non-diabetic women with hyperandrogenism, focusing on the relationship to obesity and insulin resistance.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
88
daily sc injection of liraglutide with final dose of 3mg daily
daily sc injection of placebo liraglutide with final dose of 3mg daily of placebo
Woman's Hospital
Baton Rouge, Louisiana, United States
Absolute Body Weight (BW)
Treatment impact on change in body weight after 32 weeks of treatment.
Time frame: 32 weeks of treatment
Free Androgen Index (FAI)
Drug treatment effect on free androgen levels as calculated as FAI= total testosterone (T) concentrations divided by sex hormone binding globulin (SHBG) levels. A higher score indicates a worse outcome (more androgenic).
Time frame: 32 weeks of treatment
Body Mass Index (BMI)
Treatment effect in reducing body mass
Time frame: 32 weeks of treatment
Change in Percent Body Weight
Treatment effect on reducing body weight expressed as percent body weight loss from baseline
Time frame: Change from baseline (time 0) to study end (32 weeks)
5% Weight Loss From Baseline
Frequency of patients achieving 5% weight loss from baseline with treatment
Time frame: 32 weeks of treatment
10% Body Weight Loss From Baseline
Frequency of patients with at least 10% reduction in body weight from baseline
Time frame: 32 weeks of treatment
Abdominal Adiposity (Waist Circumference [WC]
Treatment effect on loss of WC (abdominal adiposity) with drug treatment
Time frame: 32 weeks of treatment
Waist-to-Hip Ratio
Change in central adiposity with treatment as measured by WHR. A reduction in ratio indicates a decrease in truncal fat.
Time frame: 32 weeks of treatment
Waist-to Height Ratio [WHtR])
Treatment effect on loss of central adiposity as determined by WHt ratio. The lower the ratio indicates less abdominal adiposity.
Time frame: 32 weeks of treatment
Total Fat Mass Evaluated by DEXA
Treatment effect on reduction of fat mass (kg)
Time frame: 32 weeks of treatment
Total Body Fat (%) by DXA
Treatment effect on reduction of percent body fat by DXA
Time frame: 32 weeks of treatment
Android-Gynoid Ratio (AGR) by DXA
Treatment impact on AGR, measure of central adiposity, as determined by DXA. A lower AGR indicates a reduction in central adiposity.
Time frame: 32 weeks of treatment
Trunk/Leg Fat Ratio (TLR) by DXA
Treatment impact on TLR after 32 weeks. A reduction in TLR indicates a loss of central fat.
Time frame: 32 weeks of treatment
Menstrual Cycle Frequency
Drug treatment impact on normalization of cycle frequency (cycle every 28-30 days). All cycle data is expressed as number of menses annualized to one year.
Time frame: 32 weeks of treatment
Total Testosterone Concentrations (T)
Drug treatment effect on total testosterone concentrations
Time frame: 32 weeks of treatment
Adrenal Dehydroepiandrosterone Sulfate (DHEAS)
Treatment efficacy in reducing adrenal hyperandrogenism
Time frame: 32 weeks of treatment
Fasting Blood Glucose (FG)
Treatment effect on fasting glucose prior to an oral glucose tolerance test (OGTT)
Time frame: 32 weeks of treatment
OGTT Mean Blood Glucose (MBG)
Treatment effect on MBG measured during the oral glucose tolerance test. A decrease in MBG shows improvement in glycemia.
Time frame: 32 weeks of treatment
Fasting Insulin Sensitivity (HOMA-IR)
Treatment effect on the HOMA-IR which is an insulin resistance measured derived from fasting blood glucose and insulin . The higher the number the more insulin resistant.
Time frame: 32 weeks of treatment
Matsuda Insulin Sensitivity Index Derived From the OGTT (SI OGTT)
The SI OGTT is a measure of peripheral insulin sensitivity derived from the insulin and glucoses measured during an OGTT. A increase in SI OGTTindicates greater insulin sensitivity
Time frame: 32 weeks of treatment
Corrected First Phase Insulin Secretion (IGI/HOMA-IR)
Treatment effect on insulin secretion from 0 to 30 minutes after glucose load corrected for by fasting insulin sensitivity. A higher score shows improved first phase insulin secretion in response to glucose.
Time frame: 32 weeks of treatment
Insulin Secretion- Insulin Sensitivity Index (Oral Disposition Index-IS-SI)
Treatment effect on an estimation of Beta cell compensatory function, the IS-SI is derived by applying the concept of the disposition index to measurements obtained during the 2 hour OGTT and calculated as the index of insulin secretion factored by insulin sensitivity. A higher score shows improved pancreatic beta cell function relative to insulin sensitivity.
Time frame: 32 weeks of treatment
Total Cholesterol Levels
Treatment impact on improving total cholesterol levels
Time frame: 32 weeks of treatment
High Density Lipoprotein Cholesterol (HDL-C)
Impact of treatment on HDL levels after 32 weeks of treatment
Time frame: 32 weeks of treatment
Triglyceride Levels (TRG)
Drug effect of TRG levels after treatment
Time frame: 32 weeks of treatment
Triglyceride to HDL-Cholesterol Ratio (TRG/HDL-C)
Treatment impact on TRG/HDL-C ratio which is a simple measure to estimate insulin action. A decrease in ratio indicates improvement in insulin sensitivity.
Time frame: 32 weeks of treatment
Triglyceride and Glucose Index (TyG)
Treatment impact on the TyG index which estimates insulin resistance. A reduction in TyG indicates an improvement in insulin action.
Time frame: 32 weeks of treatment
Systolic Blood Pressure
Treatment impact on systolic blood pressure
Time frame: 32 weeks of treatment
Diastolic Blood Pressure (BP)
Treatment impact on reducing diastolic blood pressure
Time frame: 32 weeks of treatment
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