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Breast CancerPhase 3NCT00369850

Bone Density and Bone Loss in Postmenopausal Women With Breast Cancer Receiving Treatment in Clinical Trial IBCSG-1-98

A Phase 3 study testing laboratory biomarker analysis, Dual energy X-ray absorptiometry (DEXA) and Spine X-ray in people with Breast Cancer and Osteoporosis, run by ETOP IBCSG Partners Foundation at 16 sites in 8 countries.

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

RATIONALE: Diagnostic procedures, such as bone mineral density testing and x-ray, help measure bone loss in women receiving treatment for breast cancer. The test results may help doctors plan better treatment. Read more about this study

Who is it for?
Ages 30 years and older, women only
Conditions the study is for
Breast Cancer, Osteoporosis
What is being tested?
laboratory biomarker analysis, Dual energy X-ray absorptiometry (DEXA) and Spine X-ray
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
458 participants
Where
16 sitesin 8 countries
Study dates
May 2004to Jan 2012
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 30 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

DISEASE CHARACTERISTICS:

  • Diagnosis of breast cancer
  • Resected disease
  • Enrolled on protocol IBCSG-1-98
  • Receiving adjuvant endocrine therapy comprising 1 of the following regimens:
  • Letrozole
  • Tamoxifen
  • Letrozole after 2 years of tamoxifen
  • Tamoxifen after 2 years of letrozole
  • Not yet completed 5 years of treatment
  • No breast cancer recurrence or second primary cancer
  • No known, symptomatic bone disease, including osteomalacia or osteogenesis imperfecta
  • No prior registration to protocol IBCSG-1-98 Bone Mineral Density substudy
  • Hormone receptor status:
  • Estrogen receptor-positive and/or progesterone receptor-positive tumor

PATIENT CHARACTERISTICS:

  • Female
  • Postmenopausal
  • No uncontrolled thyroid or parathyroid disease, Cushing's disease, or other pituitary diseases
  • No malabsorption syndrome or clinically relevant vitamin D deficiency
  • No patients for whom the bone density determination is impossible

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics
  • More than 1 year since prior and no concurrent anticonvulsants
  • More than 6 weeks since prior and no concurrent corticosteroids (at doses > the equivalent of 5 mg/day prednisone) for > 2 weeks total
  • No prior or concurrent sodium fluoride (at daily doses ≥ 5 mg/day) for > 1 month
  • More than 12 months since prior and no concurrent anabolic steroids
  • More than 6 months since prior treatment, either investigational or not, for the prevention of osteoporosis (excluding calcium or cholecalciferol [vitamin D])
  • No concurrent raloxifene
  • Concurrent therapeutic intervention for osteoporosis comprising bisphosphonates allowed
  • Concurrent warfarin allowed provided it is given for ≤ 4 weeks

Trial locations and contacts

16 sites in 8 countries.

16 sites in 8 countries

Switzerland6 sites
  • Kantonspital Aarau

    Aarau, CH-5001

  • Inselspital Bern

    Bern, CH-3010

  • Centre Hospitalier Universitaire Vaudois

    Lausanne, CH-1011

  • Ospedale Beata Vergine

    Mendrisio, CH-6850

  • Kantonsspital - St. Gallen

    Sankt Gallen, CH-9007

  • Regionalspital

    Thun, 3600

Other trials in Switzerland

Italy3 sites
  • Centro di Riferimento Oncologico - Aviano

    Aviano, 33081

  • Ospedali Riuniti di Bergamo

    Bergamo, 24100

  • European Institute of Oncology

    Milan, 20141

Other trials in Italy

Australia2 sites
  • Royal Brisbane and Women's Hospital

    Brisbane, Queensland, 4029

  • Institute of Oncology at Prince of Wales Hospital

    Randwick, New South Wales, 2031

Other trials in Australia

France1 site
  • Institut Bergonie

    Bordeaux, 33076

Other trials in France

New Zealand1 site
  • Dunedin Hospital

    Dunedin

Other trials in New Zealand

Peru1 site
  • Instituto Nacional de Enfermedades Neoplasicas

    Lima, 34

Other trials in Peru

South Africa1 site
  • Groote Schuur Hospital

    Cape Town, 7925

Other trials in South Africa

Spain1 site
  • Hospital Ruber Internacional

    Madrid, 28034

Other trials in Spain

About this study

Official title: Investigating Bone Density and Bone Loss Without Baseline Information

RATIONALE: Diagnostic procedures, such as bone mineral density testing and x-ray, help measure bone loss in women receiving treatment for breast cancer. The test results may help doctors plan better treatment.

PURPOSE: This phase III trial is studying bone density and bone loss in postmenopausal women with breast cancer receiving treatment in clinical trial IBCSG-1-98.

Read the detailed description

OBJECTIVES:

  • Compare the effects on bone mineral density (BMD) in the L2-L4 (posterio-anterior) region of the spine and hip by assessing bone density in postmenopausal women with breast cancer receiving treatment on protocol IBCSG-1-98.
  • Compare the incidence of radiological gross changes and fractures identified from spine x-rays (T4-L4) in these patients (in groups 1 and 2).
  • Use longitudinal BMD measurements to estimate a linear rate of bone loss based on mixed effect models.
  • Identify serum markers for bone loss to determine how they correlate with osteoporosis, microfractures, clinical fractures, and breast cancer-related bone events.

OUTLINE: This is a multicenter study and a substudy of protocol IBCSG-1-98. Patients are assigned to 1 of 3 groups according to the length of treatment they have undergone on protocol IBCSG-1-98.

  • Group 1 (prior to or at the end of the second year of treatment on protocol IBCSG-1-98): Patients undergo bone mineral density (BMD) testing of the L2-L4 spine and hip at baseline and years 1, 2, 3, and 4 from baseline. They also undergo x-rays of the T4-L4 spine at baseline and years 1, 3, and 4 from baseline.
  • Group 2 (after 2 years but before the end of the third year of treatment on protocol IBCSG-1-98): Patients undergo BMD testing of the L2-L4 spine and hip at baseline and years 1, 2, and 3 from baseline. They also undergo x-rays of the T4-L4 spine at baseline and years 2 and 3 from baseline.
  • Group 3 (after 3 years but before the end of the fifth year of treatment on protocol IBCSG-1-98): Patients undergo BMD testing of the L2-L4 spine and hip at baseline and years 1 and 2 from baseline (for patients in 4th year of treatment) or year 1 from baseline (for patients in 5th year of treatment).

Patients undergo blood collection at baseline and periodically during study for biomarker correlative study.

PROJECTED ACCRUAL: A total of 660 patients will be accrued for this study.

Being tested
laboratory biomarker analysis, Dual energy X-ray absorptiometry (DEXA), Spine X-ray
Keywords
osteoporosis, stage I breast cancer, stage II breast cancer, stage IIIA breast cancer
Medical subject headings
Breast Neoplasms, Osteoporosis

What participants receive

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

  • laboratory biomarker analysisOther

    Biomarkers (C-telopeptide, osteocalcin and skeletal alkaline phosphatase) will be assessed in serum.

  • Dual energy X-ray absorptiometry (DEXA)Procedure or surgery

    Mone mineral density measurements of L2-L4 and hip will be performed using DEXA.

  • Spine X-rayProcedure or surgery

    Thoracic and lumbar X-ray (T4-L4, lateral projection) will be performed.

Study groups in NCT00369850
Study groupRoleWhat they receive
Tamoxifen for 5 yearsExperimentalPatients treated with tamoxifen for 5 years after randomisation.
Receives: Other: laboratory biomarker analysis; Procedure: Dual energy X-ray absorptiometry (DEXA); Procedure: Spine X-ray
Letrozole for 5 yearsExperimentalPatients treated with letrozole for 5 years after randomisation.
Receives: Other: laboratory biomarker analysis; Procedure: Dual energy X-ray absorptiometry (DEXA); Procedure: Spine X-ray
Tamoxifen 2 years plus letrozole 3 yearsExperimentalPatients treated with tamoxifen for 2 years and afterwards with letrozole for 3 years.
Receives: Other: laboratory biomarker analysis; Procedure: Dual energy X-ray absorptiometry (DEXA); Procedure: Spine X-ray
Letrozole 2 years plus tamoxifen 3 yearsExperimentalPatients treated with letrozole for 2 years and afterwards with tamoxifen for 3 years.
Receives: Other: laboratory biomarker analysis; Procedure: Dual energy X-ray absorptiometry (DEXA); Procedure: Spine X-ray

What is being measured

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

  1. Relative percent change of bone mineral density (BMD) form baseline to after 2, 3, 4, or 5 years of treatment on protocol IBCSG-1-98

    Measured: 5 years after randomisation to BIG 1-98

  2. Recovery of BMD at 1 year after the completion of treatment on protocol IBCSG-1-98

    Measured: 6 years after randomisation to BIG 1-98

  3. Proportion of patients with BMD below the absolute threshold value for osteoporosis

    Measured: 5 years after randomisation to BIG 1-98

  4. Relative percent change in markers of bone resorption from baseline to after 2, 3, 4, or 5 years of treatment on protocol IBCSG-1-98

    Measured: 5 years after randomisation to BIG 1-98

  5. Recovery of the markers of bone resorption at 1 year after the completion of treatment on protocol IBCSG-1-98

    Measured: 6 years after randomisation to BIG 1-98

Timeline

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

  1. First posted29 Aug 2006 (estimated)
  2. Study startMay 2004
  3. Primary completionMay 2008
  4. Study completionJan 2012

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, Care provider, Investigator
Enrolment
458 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00369850
Sponsor's protocol ID
CDR0000482381
Other IDs
IBCSG-18-98-BS, EU-20623, IBCSG-1-98-BS, NOVARTIS-2026703019
Status last verified
Jul 2012
First submitted
24 Aug 2006
Last updated
27 Jul 2012
Results posted
No
Data monitoring committee
Yes

Publications

  • Decensi A, Sun Z, Guerrieri-Gonzaga A, Thurlimann B, McIntosh C, Tondini C, Monnier A, Campone M, Debled M, Schonenberger A, Zaman K, Johansson H, Price KN, Gelber RD, Goldhirsch A, Coates AS, Aebi S. Bone mineral density and circulating biomarkers in the BIG 1-98 trial comparing adjuvant letrozole, tamoxifen and their sequences. Breast Cancer Res Treat. 2014 Apr;144(2):321-9. doi: 10.1007/s10549-014-2849-2. Epub 2014 Feb 1.

    PubMed 24487691

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing laboratory biomarker analysis, Dual energy X-ray absorptiometry (DEXA) and Spine X-ray in people with Breast Cancer and Osteoporosis, run by ETOP IBCSG Partners Foundation at 16 sites in 8 countries.

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

Who may be eligible to take part?

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 27 Jul 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 16 sites in Switzerland, Italy, Australia, France, New Zealand and 3 more countries. 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 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?

Relative percent change of bone mineral density (BMD) form baseline to after 2, 3, 4, or 5 years of treatment on protocol IBCSG-1-98 (time frame: 5 years after randomisation to BIG 1-98). The study lists 5 primary outcomes in all. 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 NCT00369850, 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 27 Jul 2012.

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