The aim of the study is to investigate the ovulation inhibition of two 4-phasic oral contraceptive regimens.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
209
Estradiol valerate (EV) and dienogest (DNG) in a sequential 4-phasic regimen, EV 3, 2, and 1 mg and DNG 2 and 3 mg
Estradiol valerate (EV) and dienogest (DNG) in a sequential 4-phasic regimen, EV 3, 2, and 1 mg and DNG 3 and 4 mg
Dinox GmbH Berlin
Berlin, State of Berlin, Germany
Dinox B.V.
Groningen, Netherlands
Proportion of subjects with a Hoogland score of 5-6 (luteinized unruptured follicle [LUF] or ovulation)
Time frame: Treatment cycles 2 and 3
Proportion of subjects with a Hoogland score of 5-6 (LUF or ovulation)
Time frame: Treatment cycles 2 or 3
Measurements of endometrial thickness
Time frame: Treatment cycles 2 and 3
Visibility of cervical mucus
Time frame: Treatment cycles 2 and 3
Ovarian activity (Hoogland score)
Time frame: Posttreatment cycle (only subjects from center 2)Treatment cycles 2 and 3
Measurements of follicle size
Time frame: Treatment cycles 2 and 3
Measurements of hormone levels (follicle-stimulating hormone [FSH], luteinizing hormone [LH], progesterone and estradiol)
Time frame: Treatment cycles 2 and 3
Compliance
Time frame: Throughout whole study
Medical, surgical and medication history, concomitant medication, general physical and gynecological examination, cervical smear, pregnancy test, adverse events, safety laboratory determinations, cycle control, vital signs
Time frame: Various timepoint throughout the study
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