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Endometrial Safety Study of Transdermal Testosterone (300 Mcg/Day) in Naturally Postmenopausal Women

A Randomized, Double-Blind, Placebo-controlled, Multicenter, 52-week Study to Evaluate the Endometrial Safety of Transdermal Testosterone (300 Mcg/Day) in Naturally Postmenopausal Women With Hypoactive Sexual Desire Disorder.

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00467259
Enrollment
1271
Registered
2007-04-30
Start date
2007-04-30
Completion date
2009-01-31
Last updated
2011-12-15

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

Conditions

Hypoactive Sexual Desire Disorder

Keywords

Natural Menopause

Brief summary

This study is designed to evaluate the endometrial safety of a testosterone patch as treatment for low libido in naturally postmenopausal women.

Detailed description

Naturally postmenopausal women with hypoactive sexual desire disorder (HSDD) will be randomized into a 52-week, multicenter, double-blind (DB), parallel-group, placebo-controlled study. Patients will be stratified based on whether they use concomitant estrogen/progestin therapy and then randomized in a 4:1 ration to receive either testosterone transdermal system (300 mcg/day) or placebo. Patients using estrogen/progestin at the start of the study should maintain this therapy throughout the study; patients not using estrogen/progestin at the start of the study should not initiate estrogen/progestin therapy throughout the study. Endometrial biopsies and transvaginal ultrasounds will be collected/performed at screening and study exit for all patients. Safety will be assessed by adverse events, reports of vaginal bleeding, lipids, serum chemistry, and hematology. Physical exams, pap smears, and mammograms will be monitored.

Interventions

Testosterone patch, 300 mcg/day, change patch twice a week for 52 weeks

DRUGPlacebo patch

placebo patch, changed twice a week for 52 weeks

Sponsors

Warner Chilcott
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
45 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Women will be screened for study participation and must be at least one year post menopausal, 45-70 years old, in general good health, and may or may not be on hormone therapy, and must have low sexual desire which causes distress.

Exclusion criteria

* Women will be screened for study participation and must not be using androgen therapy or have any medical, physical, psychological, or pharmacological condition that could make participation unsafe or confound the safety evaluation.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Endometrial Hyperplasia in Naturally Postmenopausal Women With Hypoactive Sexual Desire Disorder (HSDD) Not Using Concomitant Estrogen and Progestin, Year 152 weeksIncidence measured is number of patients with endometrial hyperplasia/number of patients with evaluable biopsies

Secondary

MeasureTime frameDescription
Incidence of Endometrial Hyperplasia in Naturally Postmenopausal Women With HSDD Using Concomitant Estrogen and Progestin, Year 152 weeksIncidence measured is number of patients with endometrial hyperplasia/number of patients with evaluable biopsies
Incidence Endometrial Hyperplasia in Naturally Postmenopausal Women With HSDD Using Concomitant Estrogen & Progestin Combined With Those Not Using Estrogen & Progestin Therapy, Year 152 weeksIncidence measured is number of patients with endometrial hyperplasia/number of patients with evaluable biopsies

Countries

United States

Participant flow

Recruitment details

Screening began 14 May 2007

Pre-assignment details

Randomized 1127 women not using concomitant estrogen & progestin (E&P) therapy. An additional 134 women using concomitant estrogen & progestin therapy were randomized. Subjects were stratified by using or not using E&P by site and then randomized 4:1 300 mcg/d TTS or placebo.

Participants by arm

ArmCount
Placebo
Placebo patch
251
Testosterone
Testosterone patch, 300 mcg/day, change patch twice a week for 52 weeks
1,020
Total1,271

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event2490
Overall StudyLost to Follow-up1434
Overall StudyPhysician Decision02
Overall StudyProtocol Violation17
Overall StudySite Closed21
Overall StudyWithdrawal by Subject34108

Baseline characteristics

CharacteristicPlaceboTestosteroneTotal
Age Continuous55.5 years
STANDARD_DEVIATION 4.8
55.8 years
STANDARD_DEVIATION 4.9
55.7 years
STANDARD_DEVIATION 4.9
Age, Customized
40-49 years old
21 Participants95 Participants116 Participants
Age, Customized
50-59 years old
182 Participants700 Participants882 Participants
Age, Customized
60-65 years old
39 Participants189 Participants228 Participants
Age, Customized
66 + years old
9 Participants35 Participants44 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
14 Participants50 Participants64 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
237 Participants969 Participants1206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian (Oriental)
3 Participants6 Participants9 Participants
Race/Ethnicity, Customized
Black or African American
9 Participants82 Participants91 Participants
Race/Ethnicity, Customized
Caucasian
231 Participants920 Participants1151 Participants
Race/Ethnicity, Customized
Hawaiian / Pacific Islander
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Hispanic
1 Participants3 Participants4 Participants
Race/Ethnicity, Customized
Indian (American)
1 Participants3 Participants4 Participants
Race/Ethnicity, Customized
Indian (Asian)
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Latino
0 Participants2 Participants2 Participants
Race/Ethnicity, Customized
Mexican
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Multi-Racial
4 Participants1 Participants5 Participants
Race/Ethnicity, Customized
Spanish
1 Participants0 Participants1 Participants
Region of Enrollment
United States
251 participants1020 participants1271 participants
Sex: Female, Male
Female
251 Participants1020 Participants1271 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
125 / 251472 / 1,019
serious
Total, serious adverse events
10 / 25133 / 1,019

Outcome results

Primary

Incidence of Endometrial Hyperplasia in Naturally Postmenopausal Women With Hypoactive Sexual Desire Disorder (HSDD) Not Using Concomitant Estrogen and Progestin, Year 1

Incidence measured is number of patients with endometrial hyperplasia/number of patients with evaluable biopsies

Time frame: 52 weeks

Population: Subjects with evaluable endometrial biopsies.

ArmMeasureValue (NUMBER)
PlaceboIncidence of Endometrial Hyperplasia in Naturally Postmenopausal Women With Hypoactive Sexual Desire Disorder (HSDD) Not Using Concomitant Estrogen and Progestin, Year 10 # Endometrial Hyperplasia/Evaluable Biop
TestosteroneIncidence of Endometrial Hyperplasia in Naturally Postmenopausal Women With Hypoactive Sexual Desire Disorder (HSDD) Not Using Concomitant Estrogen and Progestin, Year 10 # Endometrial Hyperplasia/Evaluable Biop
Comparison: 1000 naturally postmenopausal women not on concomitant E+P therapy at baseline were to be randomized (800 TTS; 200 placebo). It was assumed 60% would complete 1 year and 80% of these would have evaluable biopsies. Of the 800 randomized to TTS approximately 380 were expected to have evaluable biopsies at 1 year. 380 patients on TTS with evaluable biopsies at 1 year would provide 90% power to rule out an incidence of hyperplasia of 2% using the upper bound of a 2-sided 95% CI.p-value: 1Fisher Exact
Secondary

Incidence Endometrial Hyperplasia in Naturally Postmenopausal Women With HSDD Using Concomitant Estrogen & Progestin Combined With Those Not Using Estrogen & Progestin Therapy, Year 1

Incidence measured is number of patients with endometrial hyperplasia/number of patients with evaluable biopsies

Time frame: 52 weeks

Population: Subjects with evaluable endometrial biopsies.

ArmMeasureValue (NUMBER)
PlaceboIncidence Endometrial Hyperplasia in Naturally Postmenopausal Women With HSDD Using Concomitant Estrogen & Progestin Combined With Those Not Using Estrogen & Progestin Therapy, Year 10 # Endometrial Hyperplasia/Evaluable Biop
TestosteroneIncidence Endometrial Hyperplasia in Naturally Postmenopausal Women With HSDD Using Concomitant Estrogen & Progestin Combined With Those Not Using Estrogen & Progestin Therapy, Year 10 # Endometrial Hyperplasia/Evaluable Biop
Comparison: 1000 naturally postmenopausal women not on concomitant E+P therapy at baseline were to be randomized (800 TTS; 200 placebo). It was assumed 60% would complete 1 year and 80% of these would have evaluable biopsies. Of the 800 randomized to TTS approximately 380 were expected to have evaluable biopsies at 1 year. 380 patients on TTS with evaluable biopsies at 1 year would provide 90% power to rule out an incidence of hyperplasia of 2% using the upper bound of a 2-sided 95% CI.p-value: 1Fisher Exact
Secondary

Incidence of Endometrial Hyperplasia in Naturally Postmenopausal Women With HSDD Using Concomitant Estrogen and Progestin, Year 1

Incidence measured is number of patients with endometrial hyperplasia/number of patients with evaluable biopsies

Time frame: 52 weeks

Population: Subjects with evaluable endometrial biopsies.

ArmMeasureValue (NUMBER)
PlaceboIncidence of Endometrial Hyperplasia in Naturally Postmenopausal Women With HSDD Using Concomitant Estrogen and Progestin, Year 10 # Endometrial Hyperplasia/Evaluable Biop
TestosteroneIncidence of Endometrial Hyperplasia in Naturally Postmenopausal Women With HSDD Using Concomitant Estrogen and Progestin, Year 10 # Endometrial Hyperplasia/Evaluable Biop
Comparison: 1000 naturally postmenopausal women not on concomitant E+P therapy at baseline were to be randomized (800 TTS; 200 placebo). It was assumed 60% would complete 1 year and 80% of these would have evaluable biopsies. Of the 800 randomized to TTS approximately 380 were expected to have evaluable biopsies at 1 year. 380 patients on TTS with evaluable biopsies at 1 year would provide 90% power to rule out an incidence of hyperplasia of 2% using the upper bound of a 2-sided 95% CI.p-value: 1Fisher Exact

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