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Bioavailability of Three Oral Formulations for Hormone Replacement Therapy in Postmenopausal Women

Single Dose, Three-way, Cross-over, Relative Bioavailability Study With 3 Oral Formulations for Hormone Replacement Therapy in Postmenopausal Women: 0.5 mg Estradiol + 0.1 mg Norethisterone Acetate, 0.5 mg Estradiol + 0.25 mg Norethisterone Acetate, and 1.0 mg Estradiol + 0.5 mg Norethisterone Acetate

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01477632
Enrollment
24
Registered
2011-11-22
Start date
2005-03-31
Completion date
2005-06-30
Last updated
2016-01-15

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

Conditions

Healthy, Menopause

Brief summary

This trial is conducted in Europe. The aim of this trial is to determine the extent of bioavailability of two low dose estradiol/norethisterone acetate (NETA) preparations with a marketed estradiol/norethisterone acetate (NETA) preparation.

Interventions

A single oral dose of 2 tablets under fasting conditions

A single oral dose of 2 tablets under fasting conditions

A single oral dose of 1 tablet under fasting conditions

Sponsors

Novo Nordisk A/S
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
50 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy * Postmenopausal * Caucasian race * Smoking (up to 5 cig./per day) is allowed * Good state of health: evidenced by medical history, physical examination including gynecological examination, results of laboratory examination

Exclusion criteria

* Known or suspected allergy to trial products or related products * Previous participation in this trial * Previous estrogen and/or progestin hormone replacement therapy * Known, suspected or history of breast cancer * Systolic blood pressure (BP) at least 160 mm Hg and/or diastolic BP at least 100 mm Hg, currently treated or untreated * Body Mass Index (BMI) above 35.0 kg/m\^2

Design outcomes

Primary

MeasureTime frame
Area under the curve (AUC(0-∞))
Maximal concentration (Cmax)
Time to maximum (tmax)

Secondary

MeasureTime frame
Area Under the Curve (AUC) from dosing up to last sample
Terminal half-life (t½)

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026