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Endometrial Safety of a Low Dose of Vagifem® in Postmenopausal Women With Atrophic Vaginitis

A 12 Month, Open-label, Multi-center Trial to Investigate the Endometrial Safety of Vagifem Low Dose (10ug 17beta-estradiol Vaginal Tablet) in Postmenopausal Women With Atrophic Vaginitis Symptoms

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00431132
Enrollment
336
Registered
2007-02-05
Start date
2007-01-31
Completion date
2008-11-30
Last updated
2017-03-15

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

Conditions

Menopause, Postmenopausal Vaginal Atrophy

Brief summary

This trial is conducted in Europe. The purpose of this study is to evaluate endometrial safety of intravaginal estradiol (Vagifem®) in healthy postmenopausal women having atropic vaginitis.

Interventions

Tablets, administered intravaginally twice weekly

Sponsors

Novo Nordisk A/S
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
45 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Postmenopausal women whose last menstruation was at least two years prior to the time of screening * At least 1 urogenital symptom (vaginal dryness, vaginal and/or vulvar irritation/itching, vaginal soreness, dysuria, dyspareunia and vaginal bleeding associated with sexual activity * Generally healthy

Exclusion criteria

* Exposure to exogenous sex steroid hormones (estrogen and/or progestin hormone replacement therapy) within past 3 months

Design outcomes

Primary

MeasureTime frameDescription
Endometrial Hyperplasia Based on Histological Assessment of Endometrial BiopsiesWeek 52The endometrial hyperplasia rate was calculated based on the number of patients with endometrial hyperplasia/endometrial carcinoma divided by the total number of subjects with interpretable biopsies at Week 52.

Secondary

MeasureTime frameDescription
Transvaginal Ultrasound: Endometrial ThicknessWeek 0, week 52Transvaginal ultrasounds were performed at Baseline (Week 0) and Week 52, or at the time of withdrawal in the case of a subject's premature discontinuation. Endometrial thickness, measured (double layer) in mm, were lesser than 4 mm for entry into the trial.

Countries

Czechia, Denmark, Finland, France, Hungary, Norway, Sweden

Participant flow

Recruitment details

40 sites in Czech Republic, Denmark, Finland, France, Hungary, Norway, and Sweden

Participants by arm

ArmCount
Vagifem® 10 mcg
One 10 mcg (microgram) vaginal tablet of intravaginal estradiol (Vagifem®) once daily for two weeks followed by one 10 mcg vaginal tablet twice weekly for 50 weeks
336
Total336

Baseline characteristics

CharacteristicVagifem® 10 mcg
Age, Continuous59.5 years
STANDARD_DEVIATION 6.2
Body Mass Index (BMI)24.6 kg/m^2
STANDARD_DEVIATION 3.4
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
39 Participants
Race (NIH/OMB)
White
296 Participants
Sex: Female, Male
Female
336 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
17 / 336
serious
Total, serious adverse events
14 / 336

Outcome results

Primary

Endometrial Hyperplasia Based on Histological Assessment of Endometrial Biopsies

The endometrial hyperplasia rate was calculated based on the number of patients with endometrial hyperplasia/endometrial carcinoma divided by the total number of subjects with interpretable biopsies at Week 52.

Time frame: Week 52

Population: Safety analyses using LOCF (last observation carried forward) were performed on the safety population, which was comprised of 336 (100%) subjects who received 52 weeks of treatment with Vagifem® 10 mcg of trial drug.

ArmMeasureGroupValue (NUMBER)
Vagifem® 10 mcgEndometrial Hyperplasia Based on Histological Assessment of Endometrial BiopsiesSimple hyperplasia without atypia0 percentage of participants
Vagifem® 10 mcgEndometrial Hyperplasia Based on Histological Assessment of Endometrial BiopsiesSimple hyperplasia with atypia0 percentage of participants
Vagifem® 10 mcgEndometrial Hyperplasia Based on Histological Assessment of Endometrial BiopsiesComplex hyperplasia without atypia0 percentage of participants
Vagifem® 10 mcgEndometrial Hyperplasia Based on Histological Assessment of Endometrial BiopsiesComplex hyperplasia with atypia0 percentage of participants
Vagifem® 10 mcgEndometrial Hyperplasia Based on Histological Assessment of Endometrial BiopsiesCarcinoma0 percentage of participants
Secondary

Transvaginal Ultrasound: Endometrial Thickness

Transvaginal ultrasounds were performed at Baseline (Week 0) and Week 52, or at the time of withdrawal in the case of a subject's premature discontinuation. Endometrial thickness, measured (double layer) in mm, were lesser than 4 mm for entry into the trial.

Time frame: Week 0, week 52

Population: Safety analyses using LOCF (last observation carried forward) were performed on the safety population, which was comprised of 336 (100%) subjects who received 52 weeks of treatment with Vagifem® 10 mcg of trial drug.

ArmMeasureGroupValue (MEAN)Dispersion
Vagifem® 10 mcgTransvaginal Ultrasound: Endometrial ThicknessBaseline2.04 mmStandard Deviation 0.9
Vagifem® 10 mcgTransvaginal Ultrasound: Endometrial ThicknessWeek 521.94 mmStandard Deviation 0.9

Source: ClinicalTrials.gov · Data processed: Mar 30, 2026