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A dose finding study with an active control group (Yasmin) to assess the contraceptive efficacy and the efficacy on liver function of estetrol combined with 3 mg drospirenone by daily oral administration to healthy female volunteers for 3 cycles of 24 days each followed by a 4 day treatment pause. - DOC-2

A dose finding study with an active control group (Yasmin) to assess the contraceptive efficacy and the efficacy on liver function of estetrol combined with 3 mg drospirenone by daily oral administration to healthy female volunteers for 3 cycles of 24 days each followed by a 4 day treatment pause. - DOC-2

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2009-011858-17-NL
Enrollment
Unknown
Registered
2009-06-16
Start date
2009-09-25
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

Only healthy premenopausal volunteers will participate in this clinical trial. Intended indication: contraception. MedDRA version: 9.1 Level: LLT Classification code 10036556 Term: Pregnancy

Interventions

Product Name: Estetrol Product Code: E4 Pharmaceutical Form: Coated tablet INN or Proposed INN: Estetrol CAS Number: CAS 15183376 Current Sponsor code: E4 Concentration unit: mg milligram(s) Concentra

Sponsors

Pantarhei Bioscience BV
Lead Sponsor
S.A. Odyssea Pharma
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: • At least 18 years and not older than 35 years of age • Willing to use a barrier method of contraception during the entire trial • Women who ovulate in the pre-treatment cycle between day 9 (± 1) and day 24 (± 1) after start of their menses and whose next menstruation does not start within 6 days after ovulation. • Body Mass Index between 18 and 30 kg/m2 • Good physical and mental health • Both ovaries visible upon vaginal ultrasonography • Willing to give informed consent in writing 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 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: • Clinically significant abnormal results of routine haematology, serum biochemistry, urinalysis, and/or ECG in the opinion of the investigator at screening. • Women with a washout cycle with a duration > 42 days • Known or suspected pregnancy • Lactation • Pregnancy during accurate hormonal contraceptive use in the past • Known or suspected breast cancer or a history of breast cancer • Clinically significant abnormalities of the uterus and/or ovaries detected by examination and/or ultrasound (non-physiological ovarian mass or significant uterine pathology). • A cervical smear with clinically relevant abnormal cytology within three years before study start (defined as signing of informed consent). • Previous use of depot progestogen preparations or progestogen injectables in the last 6 months. • Contraindications for contraceptive steroids • In accordance with the SmPC/Package Insert of EE/DRSP, additional contraindications related to the antimineralocorticoid activity of drospirenone (conditions that predispose to hyperkaliema including hyperkaliema medication): - Renal insufficiency - Hepatic dysfunction - Adrenal insufficiency • Use of one or more of the following medications: - Antihypertensive drugs - Present use or use within 60 days prior to start of the study medication of the following drugs: phenytoin, barbiturates, primidone, carbamazapine, oxcarbazepine, topiramate, felbamate, rifampicin, nelfinavir, ritonavir, griseofulvin, ketoconazole, sex steroids (other than the study medication) and herbal remedies containing Hypericum perforatum (St John’s Wort); • Status post-partum or post-abortion within a period of 2 months before study start • Administration of investigational drugs within 2 months before screening • A history of (within 12 months) alcohol or drug abuse

Design outcomes

Primary

MeasureTime frame
Main Objective: • To investigate ovulation inhibition • To investigate pharmacodynamic effects on the liver ;Secondary Objective: • To investigate hypothalamic-pituitary-ovarian function • To investigate return of fertility • To investigate the vaginal bleeding pattern • To investigate other pharmacodynamic effects • To investigate the effect on endometrial thickness • To investigate pharmacokinetics of E4 • Safety/tolerability;Primary end point(s):

Countries

Netherlands

Outcome results

None listed

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