Metformin vs Metformin Combined With GLP-1RA (Glucagon-like Peptide 1 Receptor Agonist) on Overweight/Obese PCOS Patients

Study on the Effect of Metformin vs Metformin Combined With GLP-1 RA (Exenatide) on Overweight/Obese Patients With Polycystic Ovary Syndrome (PCOS)

The purpose of this study was to determine whether metformin combined with exenatide once weekly (EQW) is more effective than metformin alone in the treatment of overweight/obese women with polycystic ovary syndrome (PCOS). Background therapies were Diane-35 or/and progesterone capsule. 80 participants were randomized to use either metformin or metformin+EQW for 12 weeks. Greater changes in body weight were anticipated in patients treated with EQW+metformin than metformin alone in those treated with metformin.

Inclusion Criteria:

• Females 18 years to 40 years of age
• Diagnosed as PCOS by the 2003 Rotterdam criteria.
• Overweight/obesity (BMI≥25 kg/m2)
• No pregnant plan in recent 6 months
• Written consent for participation in the study

Exclusion Criteria:

• type 1 or type 2 diabetes mellitus
• Subjects have other endocrine diseases, such as adrenal hyperplasias or tumor, androgen-secreting tumors, Cushing's syndrome, thyroid diseases, and hyperprolactinemia
• Diagnosed with or have a family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
• Serious systemic disease or malignant tumor
• History of pancreatitis (chronic, acute or recurrent)
• Body weight change ≥10% at 3 months before treatment
• Used oral contraceptives or sex hormone drugs in the past 1 month
• Used oral glucocorticoids in the past 1 month
• Substance (alcohol or drug) abuse or dependence within 3 months; Heavy smokers (smokers who smoke 20 or more cigarettes a day) or heavy drinkers (>10g/d)
• Subjects have a severe systemic disease, such as cardiovascular system
• Renal impairment, eGFR<60ml/min/1.73m2
• Increase of transaminases up to < 2.5 times of upper limit of normal value
• Have a history of thromboembolic disease or thrombotic tendency
• Subjects in pregnant or lactating or within 1 year after delivery.
• Subjects have an allergic history to the drugs used in the study
• Subjects have participated in other clinical researches of medicine within 1 month prior to randomization.
• Use of metformin, glucagon-like peptide -1 receptor agonists, or weight loss medications (prescription or OTC) within 30 days before screening.