- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00369850
Bone Density and Bone Loss in Postmenopausal Women With Breast Cancer Receiving Treatment in Clinical Trial IBCSG-1-98
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.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
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.
Tipo di studio
Iscrizione (Effettivo)
Fase
- Fase 3
Contatti e Sedi
Luoghi di studio
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New South Wales
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Randwick, New South Wales, Australia, 2031
- Institute of Oncology at Prince of Wales Hospital
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Queensland
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Brisbane, Queensland, Australia, 4029
- Royal Brisbane and Women's Hospital
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Bordeaux, Francia, 33076
- Institut Bergonié
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Aviano, Italia, 33081
- Centro di Riferimento Oncologico - Aviano
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Bergamo, Italia, 24100
- Ospedali Riuniti di Bergamo
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Milano, Italia, 20141
- European Institute of Oncology
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Dunedin, Nuova Zelanda
- Dunedin Hospital
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Lima, Perù, 34
- Instituto Nacional de Enfermedades Neoplasicas
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Madrid, Spagna, 28034
- Hospital Ruber Internacional
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Cape Town, Sud Africa, 7925
- Groote Schuur Hospital
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Aarau, Svizzera, CH-5001
- Kantonspital Aarau
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Bern, Svizzera, CH-3010
- Inselspital Bern
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Lausanne, Svizzera, CH-1011
- Centre Hospitalier Universitaire Vaudois
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Mendrisio, Svizzera, CH-6850
- Ospedale Beata Vergine
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St. Gallen, Svizzera, CH-9007
- Kantonsspital - St. Gallen
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Thun, Svizzera, 3600
- Regionalspital
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
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
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Triplicare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
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Sperimentale: Tamoxifene 2 anni più letrozolo 3 anni
Pazienti trattati con tamoxifene per 2 anni e successivamente con letrozolo per 3 anni.
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Biomarkers (C-telopeptide, osteocalcin and skeletal alkaline phosphatase) will be assessed in serum.
Mone mineral density measurements of L2-L4 and hip will be performed using DEXA.
Thoracic and lumbar X-ray (T4-L4, lateral projection) will be performed.
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Sperimentale: Tamoxifen for 5 years
Patients treated with tamoxifen for 5 years after randomisation.
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Biomarkers (C-telopeptide, osteocalcin and skeletal alkaline phosphatase) will be assessed in serum.
Mone mineral density measurements of L2-L4 and hip will be performed using DEXA.
Thoracic and lumbar X-ray (T4-L4, lateral projection) will be performed.
|
Sperimentale: Letrozole for 5 years
Patients treated with letrozole for 5 years after randomisation.
|
Biomarkers (C-telopeptide, osteocalcin and skeletal alkaline phosphatase) will be assessed in serum.
Mone mineral density measurements of L2-L4 and hip will be performed using DEXA.
Thoracic and lumbar X-ray (T4-L4, lateral projection) will be performed.
|
Sperimentale: Letrozole 2 years plus tamoxifen 3 years
Patients treated with letrozole for 2 years and afterwards with tamoxifen for 3 years.
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Biomarkers (C-telopeptide, osteocalcin and skeletal alkaline phosphatase) will be assessed in serum.
Mone mineral density measurements of L2-L4 and hip will be performed using DEXA.
Thoracic and lumbar X-ray (T4-L4, lateral projection) will be performed.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Lasso di tempo |
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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
Lasso di tempo: 5 years after randomisation to BIG 1-98
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5 years after randomisation to BIG 1-98
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Recovery of BMD at 1 year after the completion of treatment on protocol IBCSG-1-98
Lasso di tempo: 6 years after randomisation to BIG 1-98
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6 years after randomisation to BIG 1-98
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Proportion of patients with BMD below the absolute threshold value for osteoporosis
Lasso di tempo: 5 years after randomisation to BIG 1-98
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5 years after randomisation to BIG 1-98
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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
Lasso di tempo: 5 years after randomisation to BIG 1-98
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5 years after randomisation to BIG 1-98
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Recovery of the markers of bone resorption at 1 year after the completion of treatment on protocol IBCSG-1-98
Lasso di tempo: 6 years after randomisation to BIG 1-98
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6 years after randomisation to BIG 1-98
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Collaboratori e investigatori
Sponsor
Investigatori
- Cattedra di studio: Stefan Aebi, MD, University Hospital Inselspital, Berne
- Cattedra di studio: Andrea Decensi, MD, European Institute of Oncology
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- CDR0000482381
- NOVARTIS-2026703019 (Altro identificatore: Novartis)
- IBCSG-18-98-BS (Altro identificatore: IBCSG)
- EU-20623 (Altro identificatore: EU)
- IBCSG-1-98-BS (Altro identificatore: IBCSG)
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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