Conditions: Breakthrough Bleeding
Keywords: oral contraceptives breakthrough bleeding spotting
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 567
Healthy volunteers: yes

Brief summary:
This is a 4-arm study to evaluate and compare bleeding patterns between three different doses of DR-1031 oral contraceptive with Seasonale oral contraceptive. Study participants will receive physical and gynecological exams, including Pap smear. During the study, all participants will be required to complete a diary

Detailed description:
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.

Arms:
arm 1: 42 days combination active tablets (20 mcg EE /150 mcg LNG) followed by 21 days combination active tablets (25 mcg EE/150 mcg LNG) followed by 21 days combination active tablets (30 mcg EE/ 150 mcg LNG) followed by 7 days of 10 mcg EE tablets. arm 2: 21 days combination active tablets (20 mcg EE /150 mcg LNG) followed by 42 days combination active tablets (25 mcg EE/ 150 mcg LNG) followed by 21 days combination active tablets (30 mcg EE/ 150 mcg LNG) followed by 7 days of 10 mcg EE tablets. arm 3: 21 days combination active tablets (20 mcg EE /150 mcg LNG) followed by 21 days combination active tablets (25 mcg EE/150 mcg LNG) followed by 42 days combination active tablets (30 mcg EE/ 150 mcg LNG) followed by 7 days of 10 mcg EE tablets. arm 4: 84 days of combination active tablets, each containing 30 mcg EE and 150 mcg LNG, followed by 7 days of placebo tablets.

Interventions: intervention 1: DR-1031 intervention 2: Seasonale® intervention 3: Portia®
Intervention descriptions: intervention 1: Active therapy cycle of 84 days taking combination tablets containing ascending doses of ethinyl estradiol (EE) and 150 mcg levonorgestrel (LNG), followed by a 7-day withdrawal cycle of 10 mcg EE. The total extended cycle was 91 days and participants were to complete two extended cycles. Active therapy dosage of EE varied by treatment arm. intervention 2: 84 days of combination active tablets, each containing 30 mcg EE and 150 mcg LNG, followed by 7 days of placebo tablets for two consecutive 91-day cycles. intervention 3: Portia® 28 consists of 21 pink active tablets, each containing 0.15 mg of levonorgestrel and 0.03 mg of ethinyl estradiol, and seven white inert tablets. Portia was taken as a pre-study run-in medication.

Protocol document: