A Safety and Efficacy Study of the Combination Estradiol and Progesterone to Treat Vasomotor Symptoms



Status:Completed
Conditions:Women's Studies
Therapuetic Areas:Reproductive
Healthy:No
Age Range:40 - 65
Updated:11/2/2017
Start Date:August 5, 2013
End Date:October 28, 2016

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A Phase 3 Study Safety and Efficacy Study of the Combination Estradiol and Progesterone to Treat Vasomotor Symptoms in Postmenopausal Women With an Intact Uterus

This study will be a prospective, randomized, double-blind, placebo-controlled, parallel
group, multicenter trial of postmenopausal subjects with an intact uterus.

Postmenopausal subjects with an intact uterus who meet the study entry criteria will be
randomized to one of five treatment arms (four active and one placebo) and followed for 12
months. During the Screening period all subjects will be provided with a diary to self-assess
the frequency and severity of their vasomotor symptoms. Subjects experiencing a minimum daily
frequency of ≥7 (or ≥50 per week) moderate to severe hot flushes will participate in a VMS
Substudy during the first 12 weeks of treatment. The Substudy subjects will be stratified by
treatment arm within the sites, and only Substudy subjects have the possibility of being
randomized to placebo. Subjects who qualify for the study except for experiencing a minimum
daily frequency of ≥7 (or ≥50 per week) moderate to severe hot flushes will be stratified
within sites to one of the four active treatment arms and followed for 12 months, but will
not participate in the VMS Substudy. (However, VMS information will be collected from all
subjects during the first 12 weeks of treatment.) All Study Subjects: Postmenopausal women
with an intact uterus who seek relief from hot flushes and meet all other inclusion/exclusion
criteria are eligible for 12 months of study treatment.

VMS Substudy Subjects: A subset of All Study Subjects who have ≥7 per day or ≥50 per week
moderate to severe hot flushes (as determined during Screening) are eligible for the 12-week
VMS Substudy and for a total of 12 months of study treatment.

Clinical evaluations will be performed at the following time points:

- Screening Period (Week: - 8.5) (up to -60 Days)

- Visit 1 Randomization (Week 0) (Day 1)

- Visit 2 Interim (Week 4)

- Visit 3 Interim (Week 8)

- Visit 4 Interim (Week 12)

- Visit 5 Interim (Month 6)

- Visit 6 Interim (Month 9)

- Visit 7 End of Treatment (Month 12)

Inclusion Criteria:

1. Be a female between the ages of 40 and 65 years (at the time of randomization) who is
willing to participate in the study, as documented by signing the informed consent
form.

2. Be a postmenopausal woman with an intact uterus and a Screening serum estradiol level
of ≤50 pg/mL. Postmenopausal is defined herein as:

1. ≥ 12 months of spontaneous amenorrhea, or

2. at least 6 months of spontaneous amenorrhea with a Screening serum FSH level of
>40 mIU/ml, or

3. ≥ 6 weeks postsurgical bilateral oophorectomy.

3. Be seeking treatment or relief for vasomotor symptoms associated with menopause.

4. To participate in the VMS Substudy, a subject must also report ≥7 moderate to severe
hot flushes per day, or ≥50 per week, at the baseline assessment during Screening
(subjects whose hot flushes are less frequent may still participate as non-Substudy
subjects.

Note: A minimum of 14 consecutive days of complete hot flush diary data are required
during the baseline assessment at Screening, and these consecutive days must occur
within the last 14 days prior to the Randomization visit (not counting the
Randomization visit day itself). The most recent 7 consecutive days of data prior to
randomization (Day -7 to Day -1) will be used to determine the baseline number of
mild, moderate and severe hot flushes for each subject.

5. Have a Body Mass Index (BMI) less than or equal to 34 kg/mP2P. (BMI values should be
rounded to the nearest integer [e.g., 34.4 rounds down to 34, while 26.5 rounds up to
27]).

6. Be willing to abstain from using products (other than study medication) that contain
estrogen, progestin, or progesterone throughout study participation.

7. Be judged by the principal or sub-investigator physician as being in otherwise
generally good health based on a medical evaluation performed during the Screening
period prior to the initial dose of study medication. The medical evaluation findings
must include:

1. a normal or non-clinically significant physical examination, including vital
signs (sitting blood pressure, heart rate, respiratory rate and temperature).
Sitting systolic blood pressure is ≤140 mmHg and diastolic blood pressure ≤90
mmHg at Screening. A subject may be taking up to two antihypertensive
medications.

2. a normal or non-clinically significant pelvic examination.

3. a mammogram that shows no sign of significant disease (can be performed within
previous 6 months prior to initial dose of study medication). Subjects must have
a BI-RADS 1 or 2 to enroll in the study. An incomplete mammogram result, i.e.
BI-RADS 0, is not acceptable. The site must obtain a copy of the official report
for the subject's study file, and it must be verified that the mammogram itself
is available if needed for additional assessment.

4. a normal or non-clinically significant clinical breast examination. An acceptable
breast examination is defined as no masses or other findings identified that are
suspicious of malignancy.

5. a normal Screening Papanicolaou ("Pap") smear. (Subjects with findings of
atypical glandular cells [AGC], AGUS, ASCUS with high risk HPV type upon reflex
testing, LSIL, ASC-H, HSIL, dysplastic cells, or malignant cells must be excluded
from randomization.)

6. an acceptable result from an evaluable Screening endometrial biopsy. The
endometrial biopsy reports by the two central pathologists at Screening must each
specify one of the following: proliferative endometrium; weakly proliferative
endometrium; disordered proliferative pattern; secretory endometrium; endometrial
tissue other (including benign, inactive or atrophic fragments of endometrial
epithelium, glands, stroma, etc); endometrial tissue insufficient for diagnosis;
no endometrium identified; or no tissue identified. However, at least one
pathologist must identify sufficient tissue to evaluate the biopsy. Additionally,
the endometrial biopsy reports by the two central pathologists of Other Findings
at Screening must each specify one of the following: endometrial polyp not
present; benign endometrial polyp; or polyp other. (See Exclusion criterion #27)

7. a normal or non-clinically significant 12-lead ECG.

Exclusion Criteria:

- To participate in the study, a subject must NOT:

1. Be currently hospitalized.

2. Have a history of thrombosis of deep veins or arteries or a thromboembolic
disorder.

3. Have a history of coronary artery or cerebrovascular disease (e.g., myocardial
infarction, angina, stroke, TIA).

4. Have a history of a chronic liver or kidney dysfunction/disorder (e.g., Hepatitis
C or chronic renal failure).

5. Have a history of a malabsorption disorder (e.g., gastric bypass, Crohn's
disease).

6. Have a history of gallbladder dysfunction/disorders (e.g., cholangitis,
cholecystitis), unless gallbladder has been removed.

7. Have a history of diabetes, thyroid disease or any other endocrinological
disease. (Subjects with diet-controlled diabetes or controlled hypothyroid
disease at Screening are not excluded.)

8. Have a history of estrogen-dependent neoplasia.

9. Have a history of atypical ductal hyperplasia of the breast.

10. Have a finding of clinically significant uterine fibroids at Screening.

11. Have had a uterine ablation.

12. Have a history of undiagnosed vaginal bleeding.

13. Have any history of endometrial hyperplasia, melanoma, or uterine/endometrial,
breast or ovarian cancer.

14. Have any history of other malignancy within the last 5 years, with the exception
of basal cell (excluded if within 1 year) or non-invasive squamous cell (excluded
if within 1 year) carcinoma of the skin.

15. Have a history of any other cardiovascular, hepatic, renal, pulmonary,
hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic,
psychological (e.g., bipolar disorder, schizophrenia, major depressive disorder),
or musculoskeletal disease or disorder that is clinically significant in the
opinion of the Principal Investigator or Medical Sub-Investigator.

16. Have any of the following clinical laboratory values at Screening:

1. fasting triglyceride of ≥300 mg/dL and/or total cholesterol of ≥300mg/dL

2. positive laboratory finding for Factor V Leiden mutation

3. AST or ALT ≥1.5 times the upper limit of normal (ULN)

4. fasting glucose >125 mg/dL

17. Be known to be pregnant or have a positive urine pregnancy test. (Note: A
pregnancy test is not required for subjects who have had bilateral tubal
ligation, bilateral oophorectomy, or are 55 years old or greater and have
experienced cessation of menses for at least 1 year.)

18. Have contraindication to estrogen and/or progestin therapy or allergy to the use
of estradiol and/or progesterone or any components of the investigational drugs.

19. Use 15 or more cigarettes per day or currently use any electronic cigarettes.

20. Have a history of drug and/or alcohol abuse within one year of start of study.

21. Have used, within 28 days prior to the initial dose of study medication at Visit
1, any medication known to induce or inhibit CYP3A4 enzyme activity that may
affect estrogen and/or progestin drug metabolism. (See 48TUSection 4.3U48T)

22. Have used, within 28 days prior to Screening, or plan to use during the study,
any prescription or over-the-counter (OTC) medications (including herbal
products, such as St. John's Wort) that would be expected to alter progesterone
or estrogen activity or is being used to treat vasomotor symptoms. (See Section
4.3U48T)

23. Have used estrogen alone or estrogen/progestin, SERM (selective estrogen receptor
modulator), testosterone, or estrogen/testosterone for any of the following time
periods:

1. Vaginal nonsystemic hormonal products (rings, creams, gels) within 7 days
prior to Screening, or vaginal systemic products (e.g., FemRing) within 28
days prior to Screening.

2. Transdermal estrogen alone or estrogen/progestin products within 8 weeks
prior to Screening.

3. Oral estrogen and/or progestin and/or SERM therapy within 8 weeks prior to
Screening.

4. Progestational implants, estrogen or estrogen/progestational injectable drug
therapy within 3 months prior to Screening.

5. Estrogen pellet therapy or progestational injectable drug therapy within 6
months prior to Screening.

6. Percutaneous estrogen lotions/gels within 8 weeks prior to Screening.

7. Oral, topical, vaginal, patch, implantable or injectable androgen therapy
within 8 weeks prior to Screening.

24. Have used an intrauterine device (IUD) within the 12 weeks prior to Screening.

25. For subjects in the VMS Substudy only: use of medication that may affect the
outcome of the vasomotor symptom endpoints within 28 days prior to Screening
(e.g. SSRIs [selective serotonin reuptake inhibitors], SNRIs [serotonin and
norepinephrine reuptake inhibitors], aldomet, dopaminergic or antidopaminergic
drugs, gabapentin, clonidine, or bellergal.)

26. Have any reason which, in the opinion of the Principal Investigator or Medical
Sub-Investigator, would prevent the subject from safely participating in the
study or complying with protocol requirements.

27. Have a Screening endometrial biopsy sample that is found by both primary
pathologists to have endometrial tissue insufficient for diagnosis, no
endometrium identified, or no tissue identified. (With the approval of the
Medical Monitor, the Screening endometrial biopsy may be repeated once.)

28. Endometrial polyps with atypical nuclei reported by at least 1 central
pathologist.

29. Have contraindication to any planned study assessments (e.g., endometrial
biopsy).

30. Have participated in another clinical trial within 30 days prior to Screening,
have received an investigational drug within the three months prior to the
initial dose of study medication, or be likely to participate in a clinical trial
or receive another investigational medication during the study.

31. Currently use marijuana.
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