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Phase 3 Completed N=1,553 Prevention

E4 FREEDOM (Female Response Concerning Efficacy and Safety of Estetrol/Drospirenone as Oral Contraceptive in a Multicentric Study) - EU/Russia Study

Source: ClinicalTrials.gov NCT02817828 ↗
Enrolled (actual)
1,553
Serious AEs
0.8%
Results posted
Oct 2019
Primary outcomePrimary: The Number of On-treatment Pregnancies (With + 2-day Window) Per 100 Woman-years of Exposure (Pearl Index) in Subjects Aged 18 to 35 Years, Inclusive, at the Time of Screening — 0.47 Pearl Index
◆ Published Evidence
Emerging
8citations · ~3 / year
Combined Oral Contraceptive Adherence and Pregnancy Rates.
Obstetrics and gynecology · 2023 · Open access · Likely link

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 18 to 50 years.

Linked Publications

  • Combined Oral Contraceptive Adherence and Pregnancy Rates.
    Obstetrics and gynecology · 2023 · 8 citations · Open access · Likely link

Outcome Measures

OutcomeResultp-value
PRIMARY
The Number of On-treatment Pregnancies (With + 2-day Window) Per 100 Woman-years of Exposure (Pearl Index) in Subjects Aged 18 to 35 Years, Inclusive, at the Time of Screening
0.47
SECONDARY
The Number of On-treatment Pregnancies (With 2-day Window) as Assessed by the Method Failure Pearl Index in Subjects Aged 18 to 35 Years, Inclusive, at the Time of Screening
0.29
SECONDARY
The Number of On-treatment Pregnancies (With + 2-day Window) Per 100 Woman-years of Exposure (Pearl Index) in the Overall Study Population (18-50 Years)
0.41
SECONDARY
The Number of On-Treatment Pregnancies as Assessed by the Method Failure Pearl Index in the Overall Study Population (18-50 Years)
0.25
SECONDARY
Number of Subjects With Unscheduled Bleeding/Spotting
354; 282; 250; 249; 238; 207
SECONDARY
Number of Unscheduled Bleeding Days Per Cycle
0.2; 0.1; 0.1; 0.2; 0.1; 0.1
SECONDARY
Number of Unscheduled Spotting Days Per Cycle
0.8; 0.5; 0.5; 0.5; 0.5; 0.4
SECONDARY
Number of Subjects With Absence of Scheduled Bleeding and/or Spotting
84; 90; 105; 83; 91; 91
SECONDARY
Number of Scheduled Bleeding and/or Spotting Days Per Cycle
6.1; 5.3; 5.2; 5.0; 4.9; 4.9
SECONDARY
Number of Subjects With Abnormal Vital Signs
15
SECONDARY
Number of Subjects With Abnormal Laboratory Assessment Results
55
SECONDARY
Number of Subjects With Abnormal Physical Examination Results
1548; 5; 0; 1493; 5; 0
SECONDARY
Number of Subjects With Abnormal Gynecological Examination Results
1,545; 8; 0; 1,485; 13; 1
SECONDARY
Endometrial Biopsy Histology at Screening and End of Treatment
0; 1; 2; 7; 76; 22
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)
73.4; 73.8
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 Over the Past Week
4.0; 4.0; 4.0; 4.0
SECONDARY
Change From Baseline to End of Treatment in the Score of the Menstrual Distress Questionnaire (MDQ)
-0.4; -0.1; -0.1; -0.1; -0.1; 0.0

Eligibility Criteria

Inclusion Criteria

  • Heterosexually active female at risk for pregnancy and requesting contraception.
  • Negative serum pregnancy test at subject enrollment.
  • 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 (IC).
  • 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 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.
  • Use of drugs potentially triggering interactions with COCs.
  • History of alcohol or drug abuse (including laxatives) within 12 months prior to screening.
  • 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/EU approved active ingredients, may be enrolled 2 months (60 days) after completing the preceding study.
  • Sponsor, CRO or Investigator's site personnel directly affiliated with this study.
  • Is judged by the Investigator to be unsuitable for any reason.
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT02817828) 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.

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