E4 FREEDOM (Female Response Concerning Efficacy and Safety of Estetrol/Drospirenone as Oral Contraceptive in a Multicentric Study) - United States/Canada Study
A Multicenter, Open-label, Single-Arm Study to Evaluate the Contraceptive Efficacy and Safety of a Combined Oral Contraceptive Containing 15 mg Estetrol and 3 mg Drospirenone
1 other identifier
interventional
2,148
2 countries
2
Brief Summary
The objectives of this study are to evaluate the contraceptive efficacy, vaginal bleeding pattern (cycle control), and the general safety and acceptability of the 15 mg estetrol (E4)/3 mg drospirenone (DRSP) combination in healthy women aged 16 to 50 years.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Aug 2016
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 27, 2016
CompletedFirst Posted
Study publicly available on registry
June 29, 2016
CompletedStudy Start
First participant enrolled
August 30, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 16, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
November 16, 2018
CompletedResults Posted
Study results publicly available
November 6, 2019
CompletedFebruary 10, 2020
October 1, 2019
2.1 years
June 27, 2016
October 16, 2019
January 24, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The Number of On-treatment Pregnancies (With + 7-day Window) Per 100 Woman-years of Exposure (Pearl Index) in Subjects Aged 16 to 35 Years, Inclusive, at the Time of Screening
On-treatment pregnancies are pregnancies with an estimated date of conception within the in-treatment period i.e. Day 1 to 7 days after the last intake of investigational product (whether active or inactive tablet). The Pearl Index, defined as the number of pregnancies per 100 women-years of treatment was calculated as: Pearl Index = (1300\*number of on-treatment pregnancies)/number of women 28-day equivalent cycles of treatment. Only at-risk cycles were included in the denominator of the Pearl Index calculation, unless a conception occurred during a cycle. At-risk-cycle was defined as cycle in which no other methods of birth control (including condoms and emergency contraception) were used by the subject as confirmed in the subject diary and during which the subject confirmed that sexual intercourse had occurred.
Up to 12 months (13 cycles with 1 cycle = 28 days)
Secondary Outcomes (21)
The Number of On-treatment Pregnancies (With +7-day Window) as Assessed by the Method Failure Pearl Index in Subjects Aged 16 to 35 Years, Inclusive, at the Time of Screening
Up to 12 months (13 cycles with 1 cycle = 28 days)
The Number of On-treatment Pregnancies (With + 7-day Window) Per 100 Woman-years of Exposure (Pearl Index) in the Overall Study Population (16-50 Years)
Up to 12 months (13 cycles with 1 cycle = 28 days)
The Number of On-treatment Pregnancies as Assessed by the Method Failure Pearl Index in the Overall Study Population (16-50 Years)
Up to 12 months (13 cycles with 1 cycle = 28 days)
Rate of Pregnancy (Life-table Analysis) in Participants Aged 16 to 35 Years
Up to 12 months (13 cycles with 1 cycle = 28 days)
Rate of Pregnancy (Life-table Analysis) in Participants Aged 16 to 50 Years
Up to 12 months (13 cycles with 1 cycle = 28 days)
- +16 more secondary outcomes
Study Arms (1)
15 mg E4/3 mg DRSP
EXPERIMENTAL15 mg estetrol (E4)/3 mg drospirenone (DRSP) combined oral contraceptive
Interventions
15 mg estetrol and 3 mg drospirenone tablets administered once daily for 13 consecutive cycles following a 24/4-day regimen, i.e. one 15 mg E4/3 mg DRSP active tablet per day for 24 consecutive days followed by one placebo tablet per day for 4 consecutive days.
Eligibility Criteria
You may qualify if:
- Heterosexually active female at risk for pregnancy and requesting contraception.
- Negative serum pregnancy test at subject screening.
- Willing to use the investigational product as the primary method of contraception for 13 consecutive cycles.
- Good physical and mental health on the basis of medical, surgical and gynecological history, physical examination, gynecological examination, clinical laboratory, and vital signs.
- Body mass index (BMI) below or equal to (≤) 35.0 kg/m2.
- Able to fulfill the requirements of the protocol and have indicated a willingness to participate in the study by providing written informed consent.
- Willing and able to complete the diaries and questionnaires.
You may not qualify if:
- Known hypersensitivity to any of the investigational product ingredients.
- Smoking if ≥ 35 years old, at screening.
- Any condition associated with decrease fertility.
- Dyslipoproteinemia requiring active treatment with antilipidemic agent.
- Diabetes mellitus with vascular involvement (nephropathy, retinopathy, neuropathy, other) or diabetes mellitus of more than 20-year duration.
- Arterial hypertension.
- Any condition associated with an increased risk of venous thromboembolism and/or arterial thromboembolism.
- Any condition associated with abnormal uterine/vaginal bleeding.
- Abnormal Pap test based on current international recommendations.
- Presence of an undiagnosed breast mass.
- Current symptomatic gallbladder disease.
- History of combined oral contraceptive (COC) related cholestasis.
- Presence or history of severe hepatic disease.
- Presence or history of pancreatitis if associated with hypertriglyceridemia.
- Porphyria.
- +12 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Estetralead
- PRA Health Sciencescollaborator
Study Sites (2)
Thomas Jefferson University Obstetrics and Gynecology
Philadelphia, Pennsylvania, 19107, United States
Clinique de Santé des Femmes
Québec, Quebec, G1S 2L6, Canada
Related Publications (1)
Creinin MD, Jensen JT, Chen MJ, Black A, Costescu D, Foidart JM. Combined Oral Contraceptive Adherence and Pregnancy Rates. Obstet Gynecol. 2023 May 1;141(5):989-994. doi: 10.1097/AOG.0000000000005155. Epub 2023 Apr 5.
PMID: 37023457DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Mithra Pharmaceuticals SA Pharma Department
- Organization
- Estetra SPRL
Study Officials
- STUDY DIRECTOR
Estetra
Estetra
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- NA
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 27, 2016
First Posted
June 29, 2016
Study Start
August 30, 2016
Primary Completion
October 16, 2018
Study Completion
November 16, 2018
Last Updated
February 10, 2020
Results First Posted
November 6, 2019
Record last verified: 2019-10
Data Sharing
- IPD Sharing
- Will not share