E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Early or locally advanced breast cancer |
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E.1.1.1 | Medical condition in easily understood language |
Early or locally advanced breast cancer |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To perform prospective analysis of (i) gene expression profiles; (ii) previously identified candidate genes; and (iii) blood analysis, before, during, and after neoadjuvant therapy with exemestane or tamoxifen to identify genes, gene profiles and serum markers predictive of response and resistance. |
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E.2.2 | Secondary objectives of the trial |
- Clinical response rate (cRR)
- Radiological response rate (rRR)
- Changes in Ki67 index in response to therapy
- Clinical/radiological response among patients over-expressing EGFR/HER-1, 2,3 & 4
- VEGF-A, p-PDGFR-beta, VEGFR-1 and VEGFR-2 expression, and changes in expression during treatment and correlation with clinical outcomes
- Serum levels of VEGF-R and VEGF-A before, during and after treatment
- Cadherin-11 and Transcription factor (AP-1, Ets-2, Cyclin D1, TTF-1, ERK-1/2)
-Gene profiling to identify molecular markers of response and resistance |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Women with histological diagnosis of primary invasive breast cancer on core biopsy
- Not a candidate for chemotherapy
- Localised or locally advanced breast cancer
- Ultrasound size at least 10mm
- No previous treatment for breast cancer
- ER positive (allred score >4)
- Palpable and measureable disease in the breast or axilla
- Post menopausal defined by the following criteria: cessation of menstrual periods for at least 1 year or bilateral surgical oophorectomy or follicular stimulating hormone (FSH) and oestradiol in the post-menopausal range
- At least 2 weeks since prior hormone replacement therapy or phyto-oestrogens herbal, alternative, or over-the counter (OTC) sex hormone remedies and not on concomitant hormonal therapy with these agents
- ECOG performance status 0,1or 2
- Randomisation and treatment within 4 weeks of biopsy
- Patient must have adequate bone marrow, hepatic and renal function
- Absence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial
- Written consent for the trial |
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E.4 | Principal exclusion criteria |
- Patient unfit to receive endocrine-based therapy
- Previous history of cancer excluding basal cell carcinoma, cervical carcinoma in-situ, or ductal carcinoma in situ of the breast
- Previous deep vein thrombosis or pulmonary embolism
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E.5 End points |
E.5.1 | Primary end point(s) |
Identify molecular markers that will predict the response or resistance to endocrine therapy with exemestane or tamoxifen
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E.5.2 | Secondary end point(s) |
- Clinical response rate (cRR)
- Radiological response rate (rRR)
- Changes in Ki67 counts in response to therapy
- Clinical/radiological response among patients over-expressing EGFR/HER-2
- Serum levels of VEGF-R and VEGF before, during and after treatment
- Serum circulatory HER-2 ECD and CEC changes during treatment
- VEGFA, VEGFR-1 and VEGFR-2 expression and correlation with clinical outcomes
- Cadherin-11,Transcription factor (AP-1, Ets-2,cyclin D1)
- Gene profiling to identify molecular markers of response or resistance |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | Yes |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
Identification of prognostic and predictive markers |
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E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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For regulatory purposes, the end of trial will be approximately 3,5 years after the last patient has been randomised into the trial. This period will allow for the trial treatment to be completed and for all data to be captured. This period will be classed as the interventional phase of the trial.
For the Research Ethics approval, the trial will be the last date of data capture or the last analysis conducted on the biological material collected whichever is the later. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 6 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |