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Breast CancerPhase 2NCT02729701

Pilot Study of the Effect of Duavee® on Benign Breast Tissue Proliferation

A Phase 2 study testing Duavee in people with Breast Cancer, run by University of Kansas Medical Center at 2 sites in United States.

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 learn whether daily use of Duavee® is accepted and tolerated by peri- and post-menopausal women at moderate risk for development of breast cancer. Read more about this study

Who is it for?
Ages Up to 61 years, women only
Conditions the study is for
Breast Cancer
What is being tested?
Duavee
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
2 sitesUnited States
Study dates
May 2016to Jun 2019
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 Up to 61 years
  • Women only
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Women with vasomotor symptoms with a uterus who are postmenopausal or in late menopause transition
  • Body Mass Index (BMI) <36 kg/m2
  • Class I-III mammogram within 6 months of Random Periareolar Fine Needle Aspiration (RPFNA); If Class 0 or 4, must be resolved with additional procedures
  • If previously on oral contraceptives or hormone replacement, off for 8 weeks or more prior to baseline RPFNA; the exception is low dose vaginal hormones
  • Confirmed moderate risk of developing breast cancer
  • RPFNA results within study defined range
  • Kidney and liver function within study defined range
  • Willing and able to comply with study related procedures

Who cannot join

  • Previous biopsy showing evidence of breast cancer
  • Have a predisposition to or prior history of thromboembolism, deep venous thrombosis, pulmonary embolism, or stroke
  • History of renal or liver disease
  • Prior ovarian or endometrial cancer
  • Stopped or started hormone replacement within 8 weeks
  • Any other condition or intercurrent illness that in the opinion of the investigator makes the woman a poor candidate for RPFNA
Show all 9Show fewer
  • Currently taking or have taken specific medications in the past 6 months
  • Participation on any chemoprevention trial within 6 months
  • Current illness which would make potential participant unsuitable for enrollment

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • University of Kansas Medical Center

    Kansas City, Kansas, 66160

  • University of Kansas Medical Center Breast Cancer Prevention Center

    Westwood, Kansas, 66208

Other trials in United States

About this study

Official title: Pilot Study of the Effect of Duavee® on Benign Breast Tissue Proliferation in Peri or Post-menopausal Women at Moderate Risk for Development of Breast Cancer

The purpose of this study is to learn whether daily use of Duavee® is accepted and tolerated by peri- and post-menopausal women at moderate risk for development of breast cancer.

Read the detailed description

Duavee® is tissue specific estrogen complex of bazedoxifene plus conjugated estrogen which is FDA approved for relief of menopausal symptoms and prevention of osteoporosis in women with a uterus who have not been diagnosed with estrogen dependent neoplasia. The overall purpose of this research is to demonstrate in a preliminary fashion that despite reduction in menopausal symptoms, (Duavee®) does not increase and may decrease proliferation in benign breast tissue in a cohort of peri- or post-menopausal women at moderately increased risk for breast cancer. If this pilot shows rapid accrual, good retention, and lack of significant increase in the risk biomarker Ki-67 in benign breast tissue, a larger prevention trial is envisioned

Conditions
Breast Cancer
Being tested
Duavee
Medical subject headings
Breast Neoplasms

What participants receive

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

  • DuaveeDrug

    Also called conjugated estrogens/bazedoxifene

    Once daily tablet of Duavee (Bazedoxifene (20 mg) plus conjugated estrogen (0.45 mg))

Study groups in NCT02729701
Study groupRoleWhat they receive
DuaveeExperimentalParticipants will be asked to take Duavee for 6 months while on the study.
Receives: Drug: Duavee

What is being measured

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

  1. Feasibility for a Larger Trial

    Outcome will be based on three separate factors used collectively to determine feasibility of the study and consideration of a subsequent larger trial. These are accrual rate (ability to accrue target number of subjects in a timely manner), dropout rate (frequency of subjects who are compliant and complete the intervention) and change in Ki-67 (increase vs decrease in percent of cells stained positive in the majority of subjects). Should accrual be inadequate or too slow; or if retention is too low; then a decision would be made not to proceed to a larger trial. Also, if there is evidence of an increase in proliferation (Ki-67) then no further studies would be planned.

    Measured: 6 Months

Secondary outcomes (4)
  1. Change in Ki-67

    Assessment by immunocytochemistry of the percent of breast epithelial cells staining positive.

    Per protocol, restricted to those subjects with baseline Ki-67 positivity >1.0% but < 4%

    Measured: Change from Baseline to Month 6

  2. Change in Fibroglandular Volume (FGV)

    Assessment of mammograms for percent of breast defined as FGV by Volpara automated assessment.

    Measured: Change from Baseline to Month 6

  3. Change in Body Composition (Total Mass)

    Assessment by Dual Energy X-ray Absorptivity (DEXA)

    Measured: Change from Baseline to Month 6

  4. Levels of Bazedoxifene in the Blood

    Assessment of concentration of bazedoxifene in plasma by High-performance liquid chromatography (HPLC)

    Measured: Month 6

Timeline

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

  1. First posted6 Apr 2016 (estimated)
  2. Study startMay 2016
  3. Primary completionJan 2019
  4. Study completionJun 2019

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 2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02729701
Sponsor's protocol ID
STUDY00002440
Status last verified
Mar 2021
First submitted
21 Mar 2016
Last updated
9 Mar 2022
Data monitoring committee
Yes
Individual data sharing
Yes: Results will be published in aggregate; no individual participant data will be made available.

Publications

  • Fabian CJ, Nye L, Powers KR, Nydegger JL, Kreutzjans AL, Phillips TA, Metheny T, Winblad O, Zalles CM, Hagan CR, Goodman ML, Gajewski BJ, Koestler DC, Chalise P, Kimler BF. Effect of Bazedoxifene and Conjugated Estrogen (Duavee) on Breast Cancer Risk Biomarkers in High-Risk Women: A Pilot Study. Cancer Prev Res (Phila). 2019 Oct;12(10):711-720. doi: 10.1158/1940-6207.CAPR-19-0315. Epub 2019 Aug 16.

    PubMed 31420361

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Duavee in people with Breast Cancer, run by University of Kansas Medical Center at 2 sites in United States.

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 8 inclusion and 9 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 9 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 Mar 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Feasibility for a Larger Trial (time frame: 6 Months). 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 NCT02729701, which also lists 1 linked publication.

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 9 Mar 2022.

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