Comparison of simvastatin and metformin in treatment of polycystic ovary syndrome: prospective randomized trial.
BACKGROUND
Polycystic ovary syndrome (PCOS) is characterized by ovarian dysfunction and hyperandrogenism; it is also associated with increased cardiovascular risks such as adverse lipid profile and endothelial dysfunction. Metformin and, more recently, statins have been shown to improve endocrine and metabolic aspects of PCOS.


OBJECTIVE
The aim of the study was to compare effects of simvastatin and metformin on PCOS.


METHODS
In a prospective trial, women with PCOS (n = 136) were randomized to simvastatin (S), metformin (M), or simvastatin plus metformin (SM) groups. Evaluations were performed at baseline and after 3 months.


METHODS
The study was conducted at an academic medical center.


METHODS
The change of serum total testosterone was measured.


RESULTS
The study was completed by 113 subjects. Total testosterone decreased significantly and comparably in all groups: by 17.1, 13.6, and 15.1%, respectively, in the S, M, and SM groups. Significant decreases were also observed in all groups with respect to body mass index, C-reactive protein, and soluble vascular cell adhesion molecule-1. DHEAS declined significantly only in the S group. None of the treatments were associated with significant changes in LH or FSH. Total cholesterol and low-density lipoprotein cholesterol significantly declined only in S and SM groups.


CONCLUSIONS
Simvastatin treatment was superior to metformin alone, whereas a combination of simvastatin and metformin was not significantly superior to simvastatin alone.
Banaszewska
Beata
B
Division of Infertility and Reproductive Endocrinology, Department of Gynecology, Obstetrics, and Gynecological Oncology, Poznan University of Medical Sciences, 60-535 Poznan, Poland.
Pawelczyk
Leszek
L
Spaczynski
Robert Z
RZ
Duleba
Antoni J
AJ
D000328:Adult; D002318:Cardiovascular Diseases / Q000517:prevention & control; D019314:Dehydroepiandrosterone Sulfate / Q000097:blood; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000627:therapeutic use*; D017588:Hyperandrogenism / Q000188:drug therapy / Q000209:etiology; D007004:Hypoglycemic Agents / Q000627:therapeutic use*; D008055:Lipids / Q000097:blood; D008687:Metformin / Q000627:therapeutic use*; D011085:Polycystic Ovary Syndrome / Q000150:complications / Q000188:drug therapy*; D011446:Prospective Studies; D012307:Risk Factors; D012738:Sex Hormone-Binding Globulin / Q000032:analysis / Q000378:metabolism; D019821:Simvastatin / Q000627:therapeutic use*; D013739:Testosterone / Q000097:blood
D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors; D007004:Hypoglycemic Agents; D008055:Lipids; D012738:Sex Hormone-Binding Globulin; D013739:Testosterone; D019314:Dehydroepiandrosterone Sulfate; D008687:Metformin; D019821:Simvastatin