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Breast CancerPhase 3STEMNCT00725374

A Study to Investigate the Effects of Tibolone (Livial®) on Breast Tissue in Postmenopausal Women With Breast Cancer (Study 32971)(P06469)

A Phase 3 study testing tibolone in people with Breast Cancer, run by Organon and Co.

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 primary purpose of this study is to compare changes in the expression of the proliferation marker Ki-67 in malignant breast tissue after treatment with tibolone or placebo in postmenopausal women who need to undergo surgery for primary breast cancer Read more about this study

Who is it for?
Any age, women only
Conditions the study is for
Breast Cancer
What is being tested?
tibolone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
102 participants
Where
No sites listed yet
Study dates
15 Dec 2002to 15 Apr 2005
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 Any age
  • Women only
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • postmenopausal women of any age
  • requiring surgery for early invasive primary breast cancer (clinically stage I or II; T1-T3; N0-1; M0), with estrogen receptor-positive tumor(s)
  • body mass index between 18 and 2 kg/m2, inclusive
  • must be willing to give voluntary written informed consent.

Who cannot join

  • healthy subjects

About this study

Official title: A Exploratory, Double-blind, Randomized, Placebo-controlled Trial to Investigate the Tissue Specific Effects of 2.5 mg Tibolone on Breast Cancer in Postmenopausal Women, in Particular on Breast Tissue Proliferation.

The primary purpose of this study is to compare changes in the expression of the proliferation marker Ki-67 in malignant breast tissue after treatment with tibolone or placebo in postmenopausal women who need to undergo surgery for primary breast cancer

Conditions
Breast Cancer
Being tested
tibolone, placebo
Medical subject headings
Breast Neoplasms

What participants receive

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

  • tiboloneDrug

    Also called Livial®

    one tablet of 2.5 mg tibolone, per day, every day, for 14 ± 2 days (until the day before surgery).

  • placeboDrug

    Subjects were to take one tablet of tibolone-matched placebo, per day, every day, for 14 ± 2 days (until the day before surgery).

Study groups in NCT00725374
Study groupRoleWhat they receive
Arm 1Active comparatorPostmenopausal women of any age, requiring surgery for early invasive primary breast cancer, with estrogen receptor-positive tumor(s). Treated with tibolone
Receives: Drug: tibolone
Arm 2Placebo comparatorPostmenopausal women of any age, requiring surgery for early invasive primary breast cancer, with estrogen receptor-positive tumor(s). Treated with placebo
Receives: Drug: placebo

What is being measured

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

  1. The primary objective of this trial was to compare changes in the expression of the proliferation marker Ki-67 in malignant breast tissue after treatment with tibolone or placebo.

    Measured: The primary outcome measure, the proliferation marker Ki-67, was measured at screening (from the screening biopsy) and about 14 days later (from the surgically removed breast tumour tissue)

Secondary outcomes (1)
  1. Apoptosis index; estrogen/progesterone/androgen receptors & isoforms; bcl-2, bax; pS2; SOX4; Apolipoprotein D; Angiogenesis parameters; estrogen levels, tibolone and tibolone metabolites.

    Measured: Outcome parameters were measured during the trial as samples were received and at the end of the clinical phase.

Timeline

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

  1. First posted30 Jul 2008 (estimated)
  2. Study start15 Dec 2002
  3. Primary completion15 Apr 2005
  4. Study completion15 Apr 2005

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
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
102 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00725374
Sponsor's protocol ID
P06469
Other IDs
32971
Acronym
STEM
Status last verified
Feb 2022
First submitted
28 Jul 2008
Last updated
15 Aug 2024
Results posted
No
Data monitoring committee
No

Publications

  • Kubista E, Planellas Gomez JV, Dowsett M, Foidart JM, Pohlodek K, Serreyn R, Nechushkin M, Manikhas AG, Semiglazov VF, Hageluken CC, Singer CF. Effect of tibolone on breast cancer cell proliferation in postmenopausal ER+ patients: results from STEM trial. Clin Cancer Res. 2007 Jul 15;13(14):4185-90. doi: 10.1158/1078-0432.CCR-06-2700.

    PubMed 17634547

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing tibolone in people with Breast Cancer, run by Organon and Co.

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 4 inclusion and 1 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 15 Aug 2024. 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?

The primary objective of this trial was to compare changes in the expression of the proliferation marker Ki-67 in malignant breast tissue after treatment with tibolone or placebo. (time frame: The primary outcome measure, the proliferation marker Ki-67, was measured at screening (from the screening biopsy) and about 14 days later (from the surgically removed breast tumour tissue)). 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 NCT00725374, 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 15 Aug 2024.

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