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Study Comparing Bioequivalence of Two New Formulations of Premarin/MPA With Premarin/MPA Reference Formulation.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00381251
Recruitment Status : Completed
First Posted : September 27, 2006
Last Update Posted : June 11, 2007
Sponsor:
Information provided by:
Wyeth is now a wholly owned subsidiary of Pfizer

Study Description
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Brief Summary:

This study will compare the bioequivalence of two new investigational combination formulations of Premarin and medroxyprogesterone acetate (MPA) with a currently marketed formulation of Premarin and medroxyprogesterone, Prempro™.

Prempro is indicated for use after menopause in women with a uterus to reduce moderate to severe hot flashes; to treat moderate to severe dryness, itching, and burning, in and around the vagina; and to help reduce your chances of getting osteoporosis (thin weak bones). The purpose of this study is to determine if these new formulations of Premarin and MPA provide the same levels of estrogen and MPA in the blood as Prempro in healthy postmenopausal women.


Condition or disease Intervention/treatment Phase
Postmenopausal Osteoporosis Postmenopause Drug: Formulations A and B of Premarin/MPA 0.45 mg/0.5 mg and PREMPRO0.45 mg/0.5 mg Phase 1

Study Design
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Study Type : Interventional  (Clinical Trial)
Allocation: Non-Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: An Open-Label, Single-Dose, Randomized, 3-Period, Crossover, Bioequivalence Study Between Two New Formulations of 0.45 mg/1.5 mg Premarin / Medroxyprogesterone Acetate (MPA) Compared With a Reference Formulation of 0.45mg/1.5mg Premarin / MPA (Prempro™) in Healthy Postmenopausal Women.
Study Start Date : September 2006
Study Completion Date : January 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Osteoporosis

Arms and Interventions
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Outcome Measures
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Primary Outcome Measures :
  1. Pharmacokinetic blood samples for unconjugated and total (unconjugated plus conjugated) estrogens and MPA will be obtained. The following pharmacokinetic parameters will be determined: Cmax, Tmax, t½, AUC0-T, AUC0-¥.

Eligibility Criteria
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Ages Eligible for Study:   35 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Healthy, postmenopausal women ages 35 to 70 years, inclusive.
  • Naturally postmenopausal women must not have had a menstrual period for at least six months, but less than 12 months, as confirmed by a blood test; or for at least 12 months with no blood hormone test confirmation. Naturally postmenopausal women must not have had a menstrual period since the age of 54. Surgically menopausal women must have undergone bilateral oophorectomy (removal of both ovaries) at least 5 months prior to the start of the study, and the surgical report may be requested to confirm the surgery date and that the surgery was not due to a cancerous condition.
  • Nonsmoker or smoker of fewer than 10 cigarettes per day as determined by history. Must be able to abstain from smoking during the inpatient stay.
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00381251


Sponsors and Collaborators
Wyeth is now a wholly owned subsidiary of Pfizer
Investigators
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Study Director: Trial Manager Wyeth is now a wholly owned subsidiary of Pfizer
More Information
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ClinicalTrials.gov Identifier: NCT00381251    
Other Study ID Numbers: 0713E1-134
First Posted: September 27, 2006    Key Record Dates
Last Update Posted: June 11, 2007
Last Verified: June 2007
Keywords provided by Wyeth is now a wholly owned subsidiary of Pfizer:
vaginal atrophy
postmenopausal osteoporosis
menopause
hot flashes
Additional relevant MeSH terms:
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Osteoporosis
Osteoporosis, Postmenopausal
Bone Diseases, Metabolic
Bone Diseases
Musculoskeletal Diseases
Metabolic Diseases
 Estrogens, Conjugated (USP)
Estrogens
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs