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Women With Mutations in the Breast Cancer Susceptibility Genes BRCA1,2Phase 2NCT01898312

BRCA1/2 and Effect of Mifepristone on the Breast

A Phase 2 study testing Mifepristone in people with Women With Mutations in the Breast Cancer Susceptibility Genes BRCA1,2, run by Karolinska Institutet at 1 site in Sweden.

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

Ovarian steroids, as well as their synthetic counterparts gestagens and estrogens have a role in breast cell proliferation and the development of breast cancer. Here, the effect of a progesterone receptor modulator, mifepristone, on cell proliferation in human breast tissue in vivo will be studied in women with BRCA-1… Read more about this study

Who is it for?
Ages 18 years and older, women only
What is being tested?
Mifepristone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
45 participants
Where
1 siteSweden
Study dates
Sep 2013to Jan 2022
Phase
Phase 2
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 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Pre-menopausal women, >/= 18 years of age
  • with good general health and
  • regular menstrual cycles (25-35 days) who are willing and
  • able to participate after giving informed consent.
  • women having BRCA1/2 mutation and have decided to undergo risk reducing mastectomy

Who cannot join

  • Any hormonal treatment used within 2 months prior to study start and
  • Any contraindication to mifepristone

Trial locations and contacts

1 site in 1 country.

Sweden1 site
  • Department of Woman and Child Health Karolinska University Hospital

    Stockholm, 17176

Other trials in Sweden

About this study

Official title: The Effect of a Progesterone Receptor Modulator on Breast Tissue in Women With BRCA-1 and -2 Mutations - a Placebo Controlled RCT.

Ovarian steroids, as well as their synthetic counterparts gestagens and estrogens have a role in breast cell proliferation and the development of breast cancer. Here, the effect of a progesterone receptor modulator, mifepristone, on cell proliferation in human breast tissue in vivo will be studied in women with BRCA-1 or -2 mutations. Our preliminary results implicate a possible protective effect of mifepristone in breast epithelium. The ability of mifepristone to block breast epithelial cell proliferation may prevent tumorigenesis and may also prove beneficial when used for contraceptive purposes and on other indications. The proposed project concerns a Randomized Controlled Trial on mifepristone versus placebo treatment of women with BRCA-1or -2 mutations with a high risk/incidence of breast cancer and ovarian cancer.

Read the detailed description

Objectives • Research objective To study the safety and effect of treatment with mifepristone, a progesterone receptor modulator, on epithelial cell proliferation in human breast tissue in women with BRCA-1 or -2 mutations prior to protective mastectomy.

Project description

  • Hypothesis/ Theory Mifepristone treatment exerts an antiproliferative, protective effect on breast tissue in women with BRCA-1 or -2 mutations

Study Design Randomized, double blind, placebo controlled trial. Women will be recruited among patients with BRCA-1 or -2 mutations scheduled for prophylactic mastectomy. Included women will be randomized to a 3-month treatment with mifepristone, 50 mg (Mifegyne, Exelgyn, Paris, France) or placebo taken orally every second day. Breast biopsies will be obtained in the luteal phase prior to start of treatment and again during surgery.

Being tested
Mifepristone

What participants receive

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

  • MifepristoneDrug

    Randomised controlled trial of Mifepristone and placebo comparator Triobe

Study groups in NCT01898312
Study groupRoleWhat they receive
MifepristoneExperimentaltreatment with oral mifepristone 50 mg every second day for 12 weeks in 30 women with BRCA 1 or 2 mutation
Receives: Drug: Mifepristone
TrioBePlacebo comparatortreatment with a quarter of a tablet of TrioBe every second day for 12 weeks
Receives: Drug: Mifepristone

What is being measured

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

  1. epithelial cell proliferation in breast tissue

    Changes from baseline after 12 weeks of mifepristone treatment in epithelial cell proliferation by measuring expression of genes specifically in the pathways involving apoptotic and cell proliferation by microarray study, including PTEN, Bcl-2 and Ki-67 along with steroid receptors.

    Measured: 3 months

Secondary outcomes (5)
  1. Vital signs and safety lab analysis

    Safety data includes vital signs, general- and gynecological-, incl breast - examinations, safety lab (hematology (blood status+CRP), kidney function (Na, K, krea) liver function (ASAT, ALAT, ALP, GT, bilirubin) , thyroid function (TSH,T3,T4), hormonal values FSH ,LH , PRL, SHBG, testosterone, E2 (sensitive) progesterone, urine dipstick and pregnancy test (prior to start). Endometrial histology will be investigated in biopsies obtained at baseline and at surgery. Women with BRCA-1/-2 mutations are followed according to the existing clinical routine with regard to ovarian cancer screening.

    Measured: 3 months

  2. Side effects and Adverse Events

    Side effects of mifepristone are mild and the only significant side effect reported in previous clinical trials with the same regimen has been mild flushes. All side effects and SAE/AE as well as any concomitant medication will be recoded by the participating patients in a dairy.

    Measured: 3 months

  3. Endometrial effects

    Bleeding patterns and endometrial morphologywill be studied. Endometrial histology and progesterone receptor modulator associated changes will be investigated in biopsies obtained at baseline and at surgery. Bleeding pattern will be registered during the study period by the participating women.

    Measured: 3 months

  4. Ovarian effects

    Women with BRCA-1/-2 mutations are followed according to the existing clinical routine with regard to ovarian cancer screening.

    Measured: 3 months

  5. Breast symptom evaluation

    Breast symptom evaluation will be registered at baseline and during the study by a breast symptom score.

    Measured: 3months

Timeline

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

  1. First posted12 Jul 2013 (estimated)
  2. Study startSep 2013
  3. Primary completion31 Dec 2021
  4. Study completionJan 2022

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
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
45 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01898312
Sponsor's protocol ID
2012-003703-35
Status last verified
Jan 2022
First submitted
5 Jul 2013
Last updated
19 Jan 2022
Results posted
No
Data monitoring committee
No

Publications

  • Engman M, Skoog L, Soderqvist G, Gemzell-Danielsson K. The effect of mifepristone on breast cell proliferation in premenopausal women evaluated through fine needle aspiration cytology. Hum Reprod. 2008 Sep;23(9):2072-9. doi: 10.1093/humrep/den228. Epub 2008 Jun 24.

    PubMed 18579510
  • Isern AE, Loman N, Malina J, Olsson H, Ringberg A. Histopathological findings and follow-up after prophylactic mastectomy and immediate breast reconstruction in 100 women from families with hereditary breast cancer. Eur J Surg Oncol. 2008 Oct;34(10):1148-54. doi: 10.1016/j.ejso.2008.03.002. Epub 2008 Apr 23.

    PubMed 18434071
  • Kauff ND, Brogi E, Scheuer L, Pathak DR, Borgen PI, Hudis CA, Offit K, Robson ME. Epithelial lesions in prophylactic mastectomy specimens from women with BRCA mutations. Cancer. 2003 Apr 1;97(7):1601-8. doi: 10.1002/cncr.11225.

    PubMed 12655515
  • Poole AJ, Li Y, Kim Y, Lin SC, Lee WH, Lee EY. Prevention of Brca1-mediated mammary tumorigenesis in mice by a progesterone antagonist. Science. 2006 Dec 1;314(5804):1467-70. doi: 10.1126/science.1130471.

    PubMed 17138902
  • Bartlett TE, Evans I, Jones A, Barrett JE, Haran S, Reisel D, Papaikonomou K, Jones L, Herzog C, Pashayan N, Simoes BM, Clarke RB, Evans DG, Ghezelayagh TS, Ponandai-Srinivasan S, Boggavarapu NR, Lalitkumar PG, Howell SJ, Risques RA, Radestad AF, Dubeau L, Gemzell-Danielsson K, Widschwendter M. Antiprogestins reduce epigenetic field cancerization in breast tissue of young healthy women. Genome Med. 2022 Jun 15;14(1):64. doi: 10.1186/s13073-022-01063-5.

    PubMed 35701800

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Mifepristone in people with Women With Mutations in the Breast Cancer Susceptibility Genes BRCA1,2, run by Karolinska Institutet at 1 site in Sweden.

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 5 inclusion and 2 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 19 Jan 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Sweden. 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. 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 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?

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?

epithelial cell proliferation in breast tissue (time frame: 3 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 NCT01898312, which also lists 5 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 19 Jan 2022.

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