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Endometrial HyperplasiaPhase 3NCT00675688

Study Evaluating Safety and Efficacy of Bazedoxifene/Conjugated Estrogens Combinations in Postmenopausal Women

A Phase 3 study testing Bazedoxifene/Conjugate Estrogens (CE) and Raloxifene in people with Endometrial Hyperplasia and Osteoporosis, run by Wyeth is now a wholly owned subsidiary of Pfizer.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine whether bazedoxifene/conjugated estrogens combinations are effective for the prevention of endometrial hyperplasia and for the prevention of osteoporosis in postmenopausal women. Read more about this study

Who is it for?
Ages 40 to 75 years, women only
Conditions the study is for
Endometrial Hyperplasia, Osteoporosis
What is being tested?
Bazedoxifene/Conjugate Estrogens (CE) and Raloxifene
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
3,544 participants
Where
No sites listed yet
Study dates
Apr 2002to Jan 2006
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Generally healthy, postmenopausal women aged 40 - 75 years inclusive
  • Intact uterus
  • Last natural menstrual cycle (without exogenous hormone therapy) completed at least 12 consecutive months before screening

Who cannot join

  • A history or active presence of thrombophlebitis, thrombosis or thromboembolic disorders
  • A history or active presence of cerebrovascular accident, stroke, or transient ischemic attack
  • A history or active presence of malignancy, or treatment for malignancy, within the previous 10 years
  • Additional criteria applies.

About this study

Official title: A Double-Blind, Randomized, Placebo- and Active-Controlled Safety and Efficacy Study of Bazedoxifene/Conjugated Estrogens Combinations in Postmenopausal Women

The purpose of this study is to determine whether bazedoxifene/conjugated estrogens combinations are effective for the prevention of endometrial hyperplasia and for the prevention of osteoporosis in postmenopausal women.

Being tested
Bazedoxifene/Conjugate Estrogens (CE), Raloxifene, Placebo
Keywords
Menopause
Medical subject headings
Endometrial Hyperplasia, Osteoporosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Bazedoxifene/Conjugate Estrogens (CE)Drug

  • RaloxifeneDrug

  • PlaceboDrug

Study groups in NCT00675688
Study groupRoleWhat they receive
AExperimentalNot described
Receives: Drug: Bazedoxifene/Conjugate Estrogens (CE)
BActive comparatorNot described
Receives: Drug: Raloxifene
CPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To evaluate the effects of Bazedoxifene/Conjugate Estrogens (CE) combinations on the incidence of endometrial hyperplasia in postmenopausal women.

    Measured: one year

Secondary outcomes (1)
  1. To evaluate the efficacy of Bazedoxifene/CE combinations in preventing osteoporosis. To evaluate the effects of Bazedoxifene/CE combinations on vaginal atrophy, metabolic parameters, uterine bleeding, vasomotor symptoms and quality of life indices.

    Measured: one year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 May 2008 (estimated)
  2. Study startApr 2002
  3. Primary completionJan 2006
  4. Study completionJan 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
3,544 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00675688
Sponsor's protocol ID
3115A1-303
Status last verified
May 2008
First submitted
7 May 2008
Last updated
12 May 2008
Results posted
No
Data monitoring committee
No

Publications

  • Archer DF, Freeman EW, Komm BS, Ryan KA, Yu CR, Mirkin S, Pinkerton JV. Pooled Analysis of the Effects of Conjugated Estrogens/Bazedoxifene on Vasomotor Symptoms in the Selective Estrogens, Menopause, and Response to Therapy Trials. J Womens Health (Larchmt). 2016 Nov;25(11):1102-1111. doi: 10.1089/jwh.2015.5558. Epub 2016 Sep 27.

    PubMed 27676118
  • Lobo RA, Pinkerton JV, Gass MLS, Dorin MH, Ronkin S, Pickar JH, Constantine G. Evaluation of bazedoxifene/conjugated estrogens for the treatment of menopausal symptoms and effects on metabolic parameters and overall safety profile. Fertil Steril. 2009 Sep;92(3):1025-1038. doi: 10.1016/j.fertnstert.2009.03.113. Epub 2009 Jul 26.

    PubMed 19635615

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Bazedoxifene/Conjugate Estrogens (CE) and Raloxifene in people with Endometrial Hyperplasia and Osteoporosis, run by Wyeth is now a wholly owned subsidiary of Pfizer.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 May 2008. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To evaluate the effects of Bazedoxifene/Conjugate Estrogens (CE) combinations on the incidence of endometrial hyperplasia in postmenopausal women. (time frame: one year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00675688, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 May 2008.

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