Randomised, multicentre, prospective, phase III trial investigating the efficacy and safety of the addition of ibandronate to adjuvant hormonal therapy in postmenopausal women with hormone receptor positive early breast cancer.
Indication
Adjuvant
Subindication
Any HER2, HR+
Target sample size
1116
Actual accrual
1116
Date: 27/05/2014
Estimated study completion date
31/12/2013
Contact
Sponsor
LUMC-Heelkunde; PI vd Velde
Principal Investigator(s)
S.C. Linn, C.J.H. van de Velde, J.W.R. Nortier, V.C.G. Tjan-Heijnen, C.M.J.C. Seynaeve
Study manager
E. Meershoek-Klein Kranenbarg
Central datamanagement and randomization
Leiden University Medical Center
Datacenter Surgery K6-R
P.O. Box 9600
2300 RC Leiden
Phone +31 71 526 3500
Fax +31 71 526 6744
ClinicalResearchCenter@lumc.nl
Datacenter@lumc.nl
Design
Randomization: Arm A: hormonal treatment with oral ibandronate (50 mg once daily) for three years Arm B:hormonal treatmentwithoutoral ibandronate
Objectives
To determine the efficacy, as assessed by disease free survival, and safety, of ibandronate as additional adjuvant therapy in postmenopausal women with hormone receptor positive primary breast cancer and an indication for adjuvant hormonal therapy.
Endpoints
Primary endpoint:
Three years disease free survival.
Secondary enpoints:
Time to and rate of bone metastases as first occurence, in patients treated with these regimens.
Time to and rate of bone metastases, per se, in patients treated with these regimens.
Time to and rate of visceral and other distant metastases in patients treated with these regimens.
Time to and rate of local- and locoregional recurrences in patients treated with these regimens.
Time to and rate of contralateral breast cancer in patients treated with these regimens.
Five years disease free survival.
Overall survival (all cause mortality and breast cancer specific mortality) in patients treated with these regimens.
Safety and toxicity of ibandronate in patients treated with this bisphosphonate.
Specific prognostic indicators for the development of bone metastases and factors that are able to predict specific benefit from ibandronate treatment in these patients using tissue micro-array and other modern techniques.
Eligibility Criteria
Histological confirmed invasive adenocarcinoma of the breast; Stage I-III breast cancer; Completed adequate surgical treatment; ER expression > 10% and/or PgR > 10%); Known HER2 status. Postmenopausal women