A Study to Evaluate Bleeding Patterns With Three Different Doses of DR-1031 Compared to Seasonale

This Phase 2, prospective, multicenter, double-blinded, randomized study is designed to evaluate and compare bleeding patterns in women using one of three different doses of DR-1031 oral contraceptive with Seasonale oral contraceptive. Patients who meet all study entrance criteria will be randomly assigned to one of four treatment groups, The overall study duration will be approximately 9 months; this will include a screening period of approximately 4 weeks, a run-in period of 4 weeks, a treatment period of approximately 6 months (two,91-day cycles) and a final study visit occurring 14-21 days after completion of study drug.