Comparative Study of BAY86-5300 With an Extended Flexible Regimen for Endometriosis
- Conditions
- Endometriosis
- Interventions
- Registration Number
- NCT01697111
- Lead Sponsor
- Bayer
- Brief Summary
This is a multi-center, randomized, double-blinded, placebo-controlled, parallel-group study (24-week treatment-comparison phase) with an open-label reference arm of active comparator (dienogest) followed by 28-week long-term treatment phase.
The primary objective of this study is to confirm the superiority of BAY86-5300 when administered with an extended flexible regimen for the treatment of endometriosis-associated pelvic pain in comparison to placebo in Japanese endometriosis patients within 24 weeks.
The secondary objective is to investigate the long-term safety of BAY86-5300 in patients treated with an extended flexible regimen for one year, and the bleeding pattern of BAY86-5300 when administered with an extended flexible regimen compared to dienogest.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Female
- Target Recruitment
- 312
- Patients diagnosed as having endometriosis by laparotomy or laparoscopy, or by identification of chocolate cyst of endometriosis, or patients with the clinical diagnosis of endometriosis, who fulfill the condition of pelvic tenderness or induration of Cul-de-sac or uterine immobility
- Patient with pelvic pain judged by the highest Visual Analogue Scale (VAS) value of 40 mm or higher which is determined during 2 menstrual cycles before randomization (baseline observation phase)
- Patients having the normal menstrual cycle (25 to 38 days) in the latest two menses before randomization (baseline observation phase)
- Patients who do not wish to become pregnant during the course of the study
- Patients who have organic diseases of which surgical treatment is prioritized by investigator
- Patients in whom any hormonal therapies, including combined oral contraceptives (COCs) and progestins, have failed for treatment of symptomatic endometriosis (moderate, severe pain)
- Patients for whom YAZ Combination Tablet is contraindicated (according to Japanese Labeling)
- Patients for whom dienogest is contraindicated (according to Japanese labeling of Dinagest Tab 1mg)
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Arm 1 EE20/DRSP(BAY86-5300) - Arm 2 Placebo - Arm 3 Dienogest -
- Primary Outcome Measures
Name Time Method Change of pelvic pain from baseline period (8 weeks before start of treatment) to period of treatment (weeks 17-24) Baseline period (8 weeks before start of treatment) and period of treatment (weeks 17-24) The pelvic pain is measured as the severest pain marked by the participant on a Visual Analogue Scale (VAS)
- Secondary Outcome Measures
Name Time Method Pelvic pain during menstrual or withdrawal bleeding period (except for dyspareunia and defecation pain) Weeks 17-24 of treatment period Pelvic pain is the worst pain on a 0-10 scale rated by the participant.
Average of pain Weeks 17-24 of treatment period The average of pain is the mean value of the Visual Analogue Scale (VAS) value during the time frame calculated for each patient based on daily record of Patient Diary.
Pelvic pain during non-menstrual period and non-withdrawal bleeding period (except for dyspareunia and defecation pain) Weeks 17-24 of treatment period Pelvic pain is the worst pain on a 0-10 scale rated by the participant.
Dyspareunia Weeks 17-24 of treatment period In case having sexual intercourse, dyspareunia pain is the worst pain on a 0-10 scale rated by the participant in the last 24 hours.
Size of chocolate cyst 24 weeks after taking the initial study medication In case chocolate cyst is detected, size of chocolate cyst is a mean length (mm) of the longest axis and the short axis (crossing) of the largest chocolate cyst determined by transvaginal ultrasonography.
Endometrial thickness 24 weeks after taking the initial study medication Endometrial thickness is the thickest value (mm) of endometrium determined by transvaginal ultrasonography.
Number of days with spotting/bleeding Up to 52 weeks Number of days with spotting/bleeding is determined based on daily record of Patient Diary.