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A Clinical Trial to Evaluate the Safety and Efficacy of DR-2041(Synthetic Conjugated Estrogens, A) for Treatment of Vulvovaginal Atrophy

A Randomized, Multicenter, Double-Blind, Placebo-Controlled Trial to Compare the Effects of 12 Weeks of Treatment With DR-2041(Synthetic Conjugated Estrogens, A) Vaginal Cream vs. Placebo Vaginal Cream on Vulvovaginal Atrophy in Healthy Postmenopausal Women

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00361569
Enrollment
622
Registered
2006-08-08
Start date
2006-08-31
Completion date
2007-09-30
Last updated
2015-04-20

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

Conditions

Menopause

Keywords

vaginal atrophy, vaginal dryness, vaginal itching, vaginal pain

Brief summary

This is a four-arm, randomized, double-blind, parallel group, placebo-controlled study to compare the effects of two doses of DR-2041(Synthetic Conjugated Estrogens, A) Vaginal Cream on vulvovaginal atrophy in postmenopausal women with or without a hysterectomy and/or oophorectomy.

Detailed description

The study will include a screening period up to 4 weeks and a 12- week treatment period. The overall study duration for participants will be approximately 16 weeks. Study participants will undergo physical and gynecological exams, and blood tests for clinical laboratory assessments. All patients with a uterus will undergo transvaginal ultrasound.

Interventions

DRUGDR-2041a

1 gram administered vaginally daily for the 1st 7 days then twice a week thereafter

DRUGDR-2041b

2 grams administered vaginally daily for the 1st 7 days then twice a week thereafter

OTHERPlacebo

1 gram administered vaginally daily for the 1st 7 days then twice a week thereafter

Sponsors

Duramed Research
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
30 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Naturally or surgically menopausal * Moderate or severe symptoms of vaginal atrophy (ie, dryness, itching, pain, uncomfortable intercourse)

Exclusion criteria

* Known sensitivity or contraindication to estrogens or progestins * History or current diagnosis endometrial hyperplasia * Recent history of vaginal bleeding of unknown cause * Recent history or diagnosis of endometriosis * Any contraindication to estrogen therapy

Design outcomes

Primary

MeasureTime frameDescription
Mean Change in the Symptom Identified by the Patient to be Most BothersomeBaseline to Week 12Change= Week 12 score - Baseline Score. The most bothersome symptom was derived from the subject self-assessment of vaginal atrophy, which consisted of 5 questions concerning severity of symptoms graded on a scale of 0-3(none, mild, moderate or severe) or 7 for not applicable.
Mean Change in Vaginal pHBaseline to Week 12Change= Week 12 vaginal pH - Baseline vaginal pH
Mean Change in Maturation IndexBaseline to Week 12Change= Week 12 maturation index -baseline maturation index. Matuation index was calculated using the following equation: Maturation Index = (% Parabasal cells \* 0) + (% Intermediate Cells \* 0.5) + (% Superficial Cells \* 1.0)

Secondary

MeasureTime frameDescription
Safety and Tolerability of DR-2041 (Synthetic Conjugated Estrogens, A)Up to Week 12Any adverse event reported from the beginning of the 28-day screening through the subject's last report.

Countries

United States

Participant flow

Participants by arm

ArmCount
DR-2041a
Synthetic Conjugated Estrogens, A (DR-2041)-1 gram administered vaginally daily for the 1st 7 days then twice a week thereafter
150
DR-2041b
Synthetic Conjugated Estrogens, A (DR-2041)-2 grams administered vaginally daily for the 1st 7 days then twice a week thereafter
161
Placebo-a
1 gram administered vaginally daily for the 1st 7 days then twice a week thereafter
155
Placebo-b
2 grams administered vaginally daily for the 1st 7 days then twice a week thereafter
156
Total622

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event3522
Overall StudyLost to Follow-up2332
Overall StudyNot specified by investigator2001
Overall StudyProtocol Violation3242
Overall StudyWithdrawal by Subject21914

Baseline characteristics

CharacteristicDR-2041aDR-2041bPlacebo-aPlacebo-bTotal
Age, Continuous60.0 years
STANDARD_DEVIATION 6.48
59.3 years
STANDARD_DEVIATION 6.1
59.8 years
STANDARD_DEVIATION 6.6
58.4 years
STANDARD_DEVIATION 6.28
59.4 years
STANDARD_DEVIATION 6.36
Age, Customized
Between 30 and 80 years
150 participants161 participants155 participants156 participants622.0 participants
Region of Enrollment
United States
150 participants161 participants155 participants156 participants622.0 participants
Sex: Female, Male
Female
150 Participants161 Participants155 Participants156 Participants622.0 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0.0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
34 / 15036 / 16118 / 15533 / 156
serious
Total, serious adverse events
1 / 1501 / 1611 / 1553 / 156

Outcome results

Primary

Mean Change in Maturation Index

Change= Week 12 maturation index -baseline maturation index. Matuation index was calculated using the following equation: Maturation Index = (% Parabasal cells \* 0) + (% Intermediate Cells \* 0.5) + (% Superficial Cells \* 1.0)

Time frame: Baseline to Week 12

Population: Modifed Intent-to-Treat: All subjects who met study protocol requirements at baseline for all 3 primary efficacy inclusion criteria, who were randomized to treatment, received at least 1 dose of study drug, for whom there were a baseline assessment and at least 1 post-randomization assessment of VVA consisting of all 3 co-primary efficacy endpoints

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
DR-2041aMean Change in Maturation Index31.46 IndexStandard Error 1.221
DR-2041bMean Change in Maturation Index33.27 IndexStandard Error 1.191
Placebo-aMean Change in Maturation Index5.16 IndexStandard Error 1.205
Placebo-bMean Change in Maturation Index8.91 IndexStandard Error 1.222
Primary

Mean Change in the Symptom Identified by the Patient to be Most Bothersome

Change= Week 12 score - Baseline Score. The most bothersome symptom was derived from the subject self-assessment of vaginal atrophy, which consisted of 5 questions concerning severity of symptoms graded on a scale of 0-3(none, mild, moderate or severe) or 7 for not applicable.

Time frame: Baseline to Week 12

Population: Modifed Intent-to-Treat: All subjects meeting study protocol requirements at baseline for all 3 primary efficacy inclusion criteria, randomized to treatment, received at least 1 dose of study drug, and had a baseline assessment and at least 1 post-randomization assessment of vulvovaginal atrophy consisting of all 3 co-primary efficacy endpoints

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
DR-2041aMean Change in the Symptom Identified by the Patient to be Most Bothersome-1.71 Scores on a scaleStandard Error 0.0087
DR-2041bMean Change in the Symptom Identified by the Patient to be Most Bothersome-1.77 Scores on a scaleStandard Error 0.085
Placebo-aMean Change in the Symptom Identified by the Patient to be Most Bothersome-1.11 Scores on a scaleStandard Error 0.086
Placebo-bMean Change in the Symptom Identified by the Patient to be Most Bothersome-1.10 Scores on a scaleStandard Error 0.087
Primary

Mean Change in Vaginal pH

Change= Week 12 vaginal pH - Baseline vaginal pH

Time frame: Baseline to Week 12

Population: Modifed Intent-to-Treat: All subjects who met study protocol requirements at baseline for all 3 primary efficacy inclusion criteria, who were randomized to treatment, received at least 1 dose of study drug, for whom there were a baseline assessment and at least 1 post-randomization assessment of VVA consisting of all 3 co-primary efficacy endpoints

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
DR-2041aMean Change in Vaginal pH-1.48 pHStandard Error 0.073
DR-2041bMean Change in Vaginal pH-1.44 pHStandard Error 0.071
Placebo-aMean Change in Vaginal pH-0.31 pHStandard Error 0.072
Placebo-bMean Change in Vaginal pH-0.38 pHStandard Error 0.073
Secondary

Safety and Tolerability of DR-2041 (Synthetic Conjugated Estrogens, A)

Any adverse event reported from the beginning of the 28-day screening through the subject's last report.

Time frame: Up to Week 12

Population: All randomized subjects who received at least one dose of study medication

ArmMeasureValue (NUMBER)
DR-2041aSafety and Tolerability of DR-2041 (Synthetic Conjugated Estrogens, A)83 Participants
DR-2041bSafety and Tolerability of DR-2041 (Synthetic Conjugated Estrogens, A)87 Participants
Placebo-aSafety and Tolerability of DR-2041 (Synthetic Conjugated Estrogens, A)72 Participants
Placebo-bSafety and Tolerability of DR-2041 (Synthetic Conjugated Estrogens, A)77 Participants

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