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A DOUBLE-BLIND, RANDOMIZED, PLACEBO-AND ACTIVE-CONTROLLED EFFICACY AND SAFETY STUDY OF THE EFFECTS OF BAZEDOXIFENE/CONJUGATED ESTROGENS COMBINATIONS ON ENDOMETRIAL HYPERPLASIA AND PREVENTION OF OSTEOPOROSIS IN POSTMENOPAUSAL WOMEN

A DOUBLE-BLIND, RANDOMIZED, PLACEBO-AND ACTIVE-CONTROLLED EFFICACY AND SAFETY STUDY OF THE EFFECTS OF BAZEDOXIFENE/CONJUGATED ESTROGENS COMBINATIONS ON ENDOMETRIAL HYPERPLASIA AND PREVENTION OF OSTEOPOROSIS IN POSTMENOPAUSAL WOMEN

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2008-003203-32-HU
Enrollment
1720
Registered
2009-01-29
Start date
2009-04-17
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

Menopause MedDRA version: 9.1 Level: HLGT Classification code 10027309 Term: Menopause and related conditions

Interventions

Product Name: BZA 20mg/CE 0.45mg Capsules Pharmaceutical Form: Capsule, hard INN or Proposed INN: Bazedoxifene CAS Number: 198481-33-3 Concentration unit: mg milligram(s) Concentration type: equal Con

Sponsors

Wyeth Research Division of Wyeth Pharmaceuticals Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Generally healthy, postmenopausal female subjects between the ages of = 40 and 40 mIU/mL. 2. Intact uterus. 3. Endometrial biopsy report at screening of one of the following by each of the central pathologists: proliferative endometrium; weakly proliferative endometrium; 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. In addition, at least 1 pathologist must identify sufficient tissue to evaluate the biopsy; see exclusion criterion 4d. 4. Body mass index (BMI) less than or equal to 34.0 kg/m2. 5. In the opinion of the investigator, the subject will comply with the protocol and has a high probability of completing the study. 6. For the osteoporosis substudy, last natural menstrual cycle must be less than 5 years before screening. 7. For the osteoporosis substudy, subjects must have 2 evaluable BMD scans, at screening, of the lumbar spine and of 1 hip (the left hip will be measured unless prevented by pathology). The lumbar spine scans must differ by less than 5% and total hip scans must differ by less than 7.5%. 8. For the sleep substudy, subjects must respond yes to the following questions: • Are you very bothered by hot flushes or night sweats? • Do you often awake during sleep time and have trouble falling asleep again? • Do you feel that you often do not get the amount of sleep needed during sleep time? 9. For the breast density substudy, subjects must have a digital mammogram that is technically acceptable for reading at screening. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Use of oral estrogen-, progestin-, androgen-, or SERM-containing drug products. 2. a. Hypersensitivity to estrogens or progestins, undiagnosed vaginal bleeding, endometrial hyperplasia, known or suspected estrogen-dependent neoplasia. b. Chronic renal or hepatic disease. c. Deep vein or superficial thrombophlebitis, thrombosis or thromboembolic disorders, including retinal vein thrombosis. d. Cerebrovascular accident, stroke, or transient ischemic attack. e. Neuroocular disorders. f. Myocardial infarction or ischemic heart disease. g. Malignancy, or treatment for malignancy, within the previous 5 years, with the exception of basal cell carcinoma of the skin or successfully removed squamous cell carcinoma of the skin; a history of breast cancer, melanoma or any gynecologic cancer, at any time, excludes the subject. h. Gallbladder disease (subjects who have had a cholecystectomy may be enrolled). i. Untreated known osteoporosis. 3. a. Malabsorption disorders. b. Endocrine disease (except for controlled hypothyroidism or diet-controlled diabetes mellitus). c. Known alcohol or drug abuse. d. Heavy smoking (more than 15 cigarettes per day). e. Use of an intrauterine device within 12 weeks before screening. f. Received any investigational drugs or devices within 60 days before screening. 4. a. Unresolved cervical smear report of atypical glandular cells (AGC) or atypical squamous cells of undetermined significance (ASC-US); cervical cytology smear of low-grade squamous intraepithelial lesion (LSIL) or greater, any reported dysplasia. Subjects with reported ASC-US may be considered if high risk human papilloma virus result is negative. b. Unresolved findings suspicious for malignancy on the breast examination. c. On the screening transvaginal ultrasound examination, nonmeasurable endometrial thickness, double-walled endometrial thickness greater than 4 mm, focal endometrial abnormality (other than fluid), complex ovarian cyst of any diameter, or simple ovarian cyst with diameter greater than 20 mm. d. Endometrial biopsy report at screening of any of the following, by both of the primary central pathologists: endometrial tissue insufficient for diagnosis, no endometrium identified, or no tissue identified. e. Endometrial polyps with atypical nuclei reported by at least 1 of the primary central pathologists. f. Serum alanine aminotransferase (ALT) or serum aspartate aminotransferase (AST) levels greater than 1.5 times the upper limit of normal for the laboratory reference range. g. Uncontrolled hypertension; subjects with elevated sitting blood pressure, greater than 140 mm Hg systolic or greater than 90 mm Hg diastolic, must seek treatment of hypertension, be controlled on therapy before randomization and not be using more than 3 antihypertensive medications for the treatment of hypertension. h. Fasting total cholesterol greater than 300 mg/dL (7.77 mmol/L) or triglycerides greater than 300 mg/dL (3.39 mmol/L). i. Fasting blood glucose greater than 125 mg/dL (6.94 mmol/L). j. ECG findings suggestive of ischemia. 5. Osteoporosis substudy: a. History or active presence of osteoporosis or low traumatic fracture; clinically active rheumatoid arthritis, diseases of both hips or of the spine at L1 to L4 that preclude obtaining evaluable BMD measurements, bone metabolic diseases such as hypercalcemia, hypocalcemia, hyperparathyroidism (intact parathyroid hormone [PTH] level above the normal range for the assay used), vitamin D deficiency

Design outcomes

Primary

MeasureTime frame
Main Objective: Primary Safety Objective: To confirm the endometrial safety of BZA 20 mg/CE 0.45 mg and BZA 20 mg/CE 0.625 mg based on an endometrial hyperplasia incidence of less than 1% at year 1. Primary Efficacy Objective: To assess the effect of BZA/CE in preventing postmenopausal osteoporosis at year 1 (osteoporosis substudy) ;Secondary Objective: To assess the effect of BZA/CE compared to BZA 20 mg on the change in bone mineral density (osteoporosis substudy). To assess the effect of BZA/CE versus placebo and CE/MPA on uterine bleeding/spotting. To assess the effect of BZA/CE versus placebo and CE/MPA on breast tenderness. To demonstrate non-inferiority of BZA/CE to placebo on quantitative changes in mammographic breast density at year 1 (breast density substudy). To assess the effect of BZA/CE versus placebo and BZA 20 mg on bone turnover markers (osteoporosis substudy). To assess the effect of BZA/CE versus placebo on sleep parameters in a subset of women (sleep substudy) with bothersome VMS at baseline. To provide a descriptive comparison of BZA/CE to conjugated estrogens/medroxyprogesterone acetate (CE/MPA). ;Primary end point(s): Incidence of endometrial hyperplasia at year 1. For the osteoporosis substudy, percent change from baseline in BMD of the lumbar spine at year 1.

Countries

Denmark, Finland, Germany, Hungary, Poland

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026