Theramex SpA

This study compares the risks of short- and long-term use of NOMAC-E2 (containing a fixed dose of nomegestrol acetate and estradiol) compared with levonorgestrel-containing combined oral contraceptives (COC-LNG) in a study population representative of the actual users of the individual preparations.

The aim of the present study was to evaluate the ability of several doses of NOMAC in combination with E2 to inhibit ovulation and to assess changes in the gonadotropin and ovarian hormone profiles, in comparison to a control cycle in healthy-volunteer premenopausal women.
The study was also designed to check whether the combined administration of E2 and NOMAC at the dose of 2.5 mg daily induces any changes in the effects of the progestin compared to when it is given alone.