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Efficacy and safety of a progestin and an aromatase inhibitor combined in a intravaginal ring in symptomatic endometriosis.

A randomized, double-blind, double-dummy, parallel- group, multi-center phase IIb study to assess the efficacy and safety of different dose combinations of an aromatase inhibitor and a progestin in an intravaginal ring versus placebo and leuprorelin / leuprolide acetate in women with symptomatic endometriosis over a 12-week treatment period - ESPARIOS 1

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2013-005090-53-FI
Enrollment
318
Registered
2014-07-16
Start date
2014-09-02
Completion date
Unknown
Last updated
2016-11-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endometriosis MedDRA version: 18.1 Level: LLT Classification code 10014788 Term: Endometriosis related pain System Organ Class: 10038604 - Reproductive system and breast disorders MedDRA version: 18.1 Level: PT Classification code 10014778 Term: Endometriosis System Organ Class: 10038604 - Reproductive system and breast disorders

Interventions

Product Name: Anastrozole +Levonorgestrel VDS, 50 mg + 170 mg Product Code: BAY 98-7196 Pharmaceutical Form: Vaginal delivery system INN or Proposed INN: ANASTROZOLE CAS Number: 120511-73-1 Current

Sponsors

Bayer HealthCare AG
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Signed and dated informed consent. 2. Premenopausal women18 years and above at the time of screening. 3. Women with endometriosis confirmed by laparoscopy or laparotomy within the last ten years but not less than 8 weeks before the screening visit In Japan, diagnosis based on imaging (transvaginal ultrasound or MRI) also qualifies for inclusion. 4. Moderate to severe endometriosis-associated pelvic pain (EAPP) of =5 in the last 28 days before screening visit 1 measured on the numeric rating scale (NRS; i.e. 4-week recall period). 5. At randomization: Adherence to the study procedures during the screening period, at least 24 diary entries of ESD item 1 during the last 28 consecutive days before the randomization visit, and a sum of the available ESD item 1 (‘worst pain’ on the daily NRS) entries during this period of at least 98 (corresponding to an average score of = 3.5). 6. Willingness to use only ibuprofen as rescue pain medication for EAPP, if needed according to investigator’s instruction. 7. Use of a non-hormonal barrier method (i.e. spermicide-coated condoms) for contraception from screening visit until the end of the study. This is not required if adequate contraception is achieved by vasectomy of the partner. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 318 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Pregnancy or lactation (less than three months since delivery, abortion, or lactation before start of treatment) 2. Any diseases or conditions that can compromise the function of the body systems and could result in altered absorption, excessive accumulation, impaired metabolism, or altered excretion of the study drug 3. Any diseases or conditions that might interfere with the conduct of the study or the interpretation of the results. 4. Any disease or condition that may worsen under hormonal treatment according to the assessment and opinion of the investigator. 5. Undiagnosed abnormal genital bleeding 6. Wish for pregnancy during the study 7. Regular use of pain medication due to other underlying diseases 8. Non-responsiveness of endometriosis associated pelvic pain (EAPP) to GnRH-a or surgery (partial response is not exclusionary).

Design outcomes

Primary

MeasureTime frame
Main Objective: To assess the dose-response relationship and demonstrate efficacy of BAY 98-7196 vs. placebo in women with symptomatic endometriosis.;Secondary Objective: Secondary objectives of this study are To identify at least 1 superior effective dose of BAY 98-7196 compared to placebo To compare the efficacy of BAY 98-7196 vs leuprorelin / leuprolide acetate descriptively To assess sustainability of treatment effect and recurrence of symptoms To evaluate the safety and tolerability of BAY 98-7196 in women with symptomatic endometriosis To explore sub-populations (e.g. subjects with indication for treatment with a gonadotropin-releasing hormone agonist or surgery as judged by the investigator or by endometriosis history and symptom severity) ;Primary end point(s): The primary efficacy variable is the absolute change in mean pain of the 7 days with worst EAPP from baseline (last 28 days before randomization) to end of treatment (last 28 days of the treatment period, Day 57 - 84).;Timepoint(s) of evaluation of this end point: Baseline (last 28 days before randomization) versus end of treatment (last 28 days of the treatment period, Day 57 – 84).

Secondary

MeasureTime frame
Secondary end point(s): Absolute change in mean pain of the 7 days with worst EAPP from baseline (last 28 days before randomization) to the first cycle under study treatment (Day 1 - 28) and to the second cycle under study treatment (Day 29 - 56). Absolute change in mean pain from baseline (last 28 days before randomization) to the first cycle under study treatment (Day 1 - 28), the second cycle under study treatment (Day 29 - 56), and to the third cycle under study treatment (Day 57 - 84). Number of days during baseline (last 28 days before randomization) and Cycles 1, 2, and 3 with pain = 7 (measured on the NRS by Question 1 of the ESD) and change from baseline. Number of days during baseline (last 28 days before randomization) and Cycles 1, 2, and 3 with pain = 4 (measured on the NRS by Question 1 of the ESD) and change from baseline.;Timepoint(s) of evaluation of this end point: Baseline (last 28 days before randomization) vs the first cycle under study treatment (Day 1 - 28) and to the second cycle under study treatment (Day 29 - 56). Baseline (last 28 days before randomization) vs the first cycle under study treatment (Day 1 - 28), the second cycle under study treatment (Day 29 - 56), and to the third cycle under study treatment (Day 57 - 84). Baseline (last 28 days before randomization) and Cycles 1, 2, and 3. Baseline (last 28 days before randomization) and Cycles 1, 2, and 3.

Countries

Austria, Belgium, Canada, Czech Republic, Denmark, Finland, Germany, Italy, Japan, Netherlands, Norway, Poland, Spain, Switzerland, United States

Contacts

Public ContactBayer Clinical Trials Contact

Bayer HealthCare AG

clinical-trials-contact@bayerhealthcare.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026