Phase 3
Completed N=1,864
E4 FREEDOM (Female Response Concerning Efficacy and Safety of Estetrol/Drospirenone as Oral Contraceptive in a Multicentric Study) - United States/Canada Study
Source: ClinicalTrials.gov NCT02817841 ↗Enrolled (actual)
1,864
Serious AEs
1.3%
Results posted
Nov 2019
Primary outcomePrimary: 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 — 2.65 Pearl Index
◆ Published Evidence
Emerging
8citations · ~3 / year
Combined Oral Contraceptive Adherence and Pregnancy Rates.
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.
Linked Publications
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Combined Oral Contraceptive Adherence and Pregnancy Rates.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY 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 |
2.65 | — |
| SECONDARY 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 |
1.43 | — |
| SECONDARY 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) |
2.52 | — |
| SECONDARY The Number of On-treatment Pregnancies as Assessed by the Method Failure Pearl Index in the Overall Study Population (16-50 Years) |
1.44 | — |
| SECONDARY Rate of Pregnancy (Life-table Analysis) in Participants Aged 16 to 35 Years |
2.06 | — |
| SECONDARY Rate of Pregnancy (Life-table Analysis) in Participants Aged 16 to 50 Years |
2.00 | — |
| SECONDARY Number of Subjects With Unscheduled Bleeding/Spotting Episodes |
532; 345; 337; 302; 238; 253 | — |
| SECONDARY Number of Unscheduled Bleeding Days Per Cycle |
0.4; 0.3; 0.4; 0.3; 0.3; 0.3 | — |
| SECONDARY Number of Unscheduled Spotting Days Per Cycle |
1.0; 0.6; 0.6; 0.5; 0.5; 0.5 | — |
| SECONDARY Number of Subjects With Absence of Scheduled Bleeding and/or Spotting |
230; 254; 274; 233; 209; 225 | — |
| SECONDARY Number of Scheduled Bleeding and/or Spotting Days Per Cycle |
6.1; 4.7; 4.7; 4.8; 4.4; 4.4 | — |
| SECONDARY Number of Subjects With Bleeding and/or Spotting Episodes by Reference Period |
1,249; 1,098; 982; 914 | — |
| SECONDARY Mean Number of Bleeding and Spotting Days by Reference Period |
3.6; 3.3; 3.3; 3.9 | — |
| SECONDARY Number of Subjects With Treatment-emergent Adverse Events as a Measure of Safety and Tolerability. |
1,002 | — |
| SECONDARY Number of Participants With Clinically Significant out-of Range Hematology Results |
8 | — |
| SECONDARY Number of Participants With Clinically Significant out-of Range Serum Chemistry and Lipid Profile Results |
21 | — |
| SECONDARY Number of Subjects With Clinically Abnormal Vital Signs |
10 | — |
| SECONDARY Number of Participants With Clinically Abnormal Physical Examination Results |
1,862; 2; 0; 1,431; 0; 1 | — |
| SECONDARY Number of Participants With Clinically Abnormal Gynecological Examination Results |
1,857; 6; 1; 1,387; 16; 11 | — |
| SECONDARY Quality of Life Enjoyment and Satisfaction Questionnaire - Short Form (Q-LES-Q-SF) Results at Baseline and End of Treatment - Percentage Maximum (Sum of First 14 Items) |
75.8; 75.4 | — |
| SECONDARY Quality of Life Enjoyment and Satisfaction Questionnaire - Short Form (Q-LES-Q-SF) Results at Baseline and End of Treatment - Satisfaction With Medicine and Overall Life Satisfaction and Contentment Over the Past Week |
4.2; 4.1; 4.1; 4.1 | — |
| SECONDARY Change From Baseline to End of Treatment in the Score of the Menstrual Distress Questionnaire (MDQ) |
-0.3; -0.1; -0.6; -0.1; -0.2; -0.2 | — |
Eligibility Criteria
Inclusion Criteria
- 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.
Exclusion Criteria
- 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.
- Presence or history of hepatocellular adenoma or malignant liver tumors.
- Renal impairment.
- Hyperkaliemia or presence of conditions that predispose to hyperkaliemia.
- Presence or history of hormone-related malignancy.
- History of non-hormone-related malignancy within 5 years before screening. Subjects with a non-melanoma skin cancer are allowed in the study.
- History of alcohol or drug abuse (including laxatives) within 12 months prior to screening.
- Use of drugs potentially triggering interactions with COCs.
- Any condition that could result in altered absorption, excessive accumulation, impaired metabolism, or altered excretion of the investigational product.
- Uncontrolled thyroid disorders.
- Participation in another investigational drug clinical study within 1 month (30 days) or have received an investigational drug within the last 3 months (90 days) prior to study entry. Subjects who participated in an oral contraceptive clinical study, using FDA/European (EU) approved active ingredients, may be enrolled 2 months (60 days) after completing the preceding study.
- Sponsor, Contract Research Organization (CRO) or Investigator's site personnel directly affiliated with this study.
- Is judged by the Investigator to be unsuitable for any reason.
Data sourced from ClinicalTrials.gov (NCT02817841) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.